CCNP Q&A - IP-NOC

#1. The above line of output was extracted from the output of the show ip bgp command on Router R1. Which of the following can be determined from

The route is the best route for this prefix.

The route has no more than three ASNs in the AS_PATH.

None of these facts can be positively determined by this output.

The route is learned from an eBGP peer.

#2. Which of the following features prevents a route learned on one interface from being advertised back out of that interface?

Split Horizon

Convergence

Summarization

Poison Reverse

The Split Horizon feature prevents a route learned on one interface from being advertised back out of that same interface.

#3. What type of Network Address Translation (NAT) allows a collection of inside local addresses to share a single inside global address, for use when communicating on the Internet?

MPAT

PAT

SNAT

DNAT

#4. Which VLANs are allowed on a trunk link by default?

Only the native VLAN

All active VLANs

None

Only negotiated VLANs

#5. Router R1 learns two routes with BGP for prefix 200.1.0.0/16. Comparing the two routes, route 1 has a shorter AS_Path Length, smaller MED, the same Weight, and smaller Local Preference. Which of the following is true about Router R1’s choice of best path for this prefix?

Route 1 is the best route.

Route 2 is the best route.

The routes tie as best, but one will be picked to be placed in the routing table based on tiebreakers.

Neither route is considered best.

#6. In a lab, R1 connects to R2, which connects to R3. R1 and R2 each have several working interfaces, all assigned addresses in Class A network 10.0.0.0. Router R3 has some working interfaces in Class A network 10.0.0.0, and others in Class B network 172.16.0.0. The engineer experiments with the auto-summary command on R2 and R3, enabling and disabling the command in various combinations. Which of the following combinations will result in R1 seeing a route for 172.16.0.0 /16, instead of the individual subnets of Class B network 172.16.0.0? (Choose two.)

Select all that apply:

auto-summary on R2 and no auto-summary on R3

no auto-summary on R2 and no auto-summary on R3

auto-summary on R2 and auto-summary on R3

no auto-summary on R2 and auto-summary on R3

#7. If a VTP server is configured for VTP Version 2, what else must happen for successful VTP communication in a domain?

A VTP version 2 password must be set.

All other switches must be configured for VTP version 2.

All other switches in the domain must be version 2 capable.

The VTP configuration revision number must be reset.

#8. Router R1 exists in an enterprise that uses EIGRP as its routing protocol. The show ip route command output on Router R1 lists the following phrase: “Gateway of last resort is 1.1.1.1 to network 2.0.0.0.” Which of the following is most likely to have caused this output to occur on R1?

R1 has been configured with an ip default-network 2.0.0.0 command.

R1 has been configured with an ip route 0.0.0.0 0.0.0.0 1.1.1.1 command.

Another router has been configured with an ip default-network 2.0.0.0 command.

R1 has been configured with an ip route 2.0.0.0 255.0.0.0 1.1.1.1 command.

#9. Which of the following are characteristics of TACACS+? (Choose two.)

Select all that apply:

Offers robust accounting

Cisco-proprietary

Encrypts an entire packet

Uses UDP

#10. A laptop inside your network has an IP address of 10.1.1.241. Using NAT, a router translates the 10.1.1.241 private IP address into 198.51.100.54, a public IP address, as the laptop is connecting to a web server on the Internet. The web server has an IP address of 203.0.113.10. What type of address is 10.1.1.241 in this scenario?

Inside global

Outside local

Inside local

Outside global

An outside global address represents a device outside of a network with a globally
routable address. In this scenario, the web server’s IP address of 203.0.113.10 would be
an outside global address.

An inside local address represents a device inside of a network with an address that
is not routable on the public Internet. In this scenario, the laptop’s IP address of
10.1.1.241 would be an inside local address.

An inside global address represents a device on the inside of our network with an
address that is a globally routable address. In this scenario, the laptop’s translated
address of 198.51.100.54 would be an inside global address.

An outside local address represents a device on the outside of a network that has an
address that is not routable on the public Internet. For example, if NAT were being performed at a remote site, the destination device at the remote site would have an outside
local address. In the scenario presented in this question, there is no outside local address.

#11. Which of the following is a benefit of Cisco EVN as compared to VRF-Lite?

Cisco EVN allows two routers to be interconnected through an 802.1Q trunk, and traffic for different VRFs is sent over the trunk, using router subinterfaces.

Cisco EVN allows two routers to be interconnected through a VNET trunk, and traffic for different VRFs is sent over the trunk, without the need to configure router subinterfaces.

Cisco EVN allows a single physical router to run multiple virtual router instances.

Cisco EVN allows routes from one VRF to be selectively leaked to other VRFs.

#12. A Cisco lightweight wireless access point is connected to switch interface Gigabit Ethernet 1/0/20. Which one of the following commands enables you to configure the interface on the switch?

switchport access vlan 50 , switchport mode access

switchport ap vlan 50

no switchport mode dynamic autonomous

switchport trunk allowed vlan 1-100 , switchport mode trunk

#13. Which one of the following switch functions is needed to pass data between two PCs, each connected to a different VLAN?

Trunk

L2 Switch

Tunnel

L3 Switch

#14. Which VLAN number is never eligible for VTP pruning?

0

1001

1

1000

#15. Which one of the following VTP modes does not allow any manual VLAN configuration changes?

Server

Transparent

Designated

Client

#16. Router R1 sits inside OSPF area 1. Router R2 redistributes an E1 route into OSPF for prefix 2.2.2.0/24, with external metric 20. Router R22 redistributes an E2 route for the same prefix/length, external metric 10. Under what conditions will R1 choose as its best route the route through R22?

R1 will always choose the route through R22.

As long as R1’s best internal OSPF cost to reach R22 is less than 20.

As long as R1’s best internal OSPF cost to reach R22 is less than 10.

R1 will never choose the route through R22 if the E1 route through R2 is available.

#17. Which of the following settings do not prevent two potential OSPF neighbors from becoming neighbors?

Mismatched Dead timers

IP addresses of 10.1.1.1/24 and 10.2.2.2/24

Mismatched OSPF process IDs

The interface used to connect to that neighbor being passive in the OSPF process

Duplicate OSPF router IDs

#18. The output of show ip eigrp topology on Router R1 shows the above output, which is all the output related to subnet 10.11.1.0/24. How many feasible successor routes does R1 have for 10.11.1.0/24?

0

3

1

2

#19. A verification plan shows a network diagram with branch office Routers B1 through B100, plus two ABRs, ABR1 and ABR2, all in area 100. The branches connect to the ABRs using Frame Relay point-to-point subinterfaces. The verification plan lists the output of the show ip ospf database summary 10.100.0.0 command on a Router B1, one of the branches. Which of the following is true regarding the output that could be listed for this command?

If 10.100.0.0 is a subnet in area 0, the output lists two Type 3 LSAs, one each created by ABR1 and ABR2.

The output lists nothing unless 10.100.0.0 has been configured as a summary route using the area range command.

None, because the Type 3 LSAs would exist only in the ABR’s LSDBs.

If 10.100.0.0 is a subnet in area 0, the output lists one Type 3 LSA, specifically the LSA with the lower metric when comparing ABR1’s and ABR2’s LSA for 10.100.0.0.

#20. Which Catalyst IOS command can you use to display the addresses in the CAM table?

show mac address-table

show cam

show mac

show cam address-table

#21. Which of the following incorrectly describes a native VLAN?

The native VLAN can be configured for each trunking port.

Frames can be interpreted by a nontrunking host.

Frames are untagged on an 802.1Q trunk.

Frames are untagged on an ISL trunk.

#22. Enterprise Router R1 connects an enterprise to the Internet. R1 needs to create and advertise a default route into the enterprise using EIGRP. The engineer creating the implementation plan has chosen to base this default route on the ip route command, rather than using ip default-network . Which of the following are not useful steps with this style of default route configuration? (Choose two.)

Select all that apply:

Redistribute the statically configured default route.

Disable auto-summary .

Configure the network 0.0.0.0 command.

Create the default route on R1 using the ip route 0.0.0.0 0.0.0.0 outgoinginterface command.

Ensure that R1 has no manually configured summary routes using the ip summary-address eigrp command.

#23. Access list rules are compiled as TCAM entries. When a packet is matched against an access list, in what order are the TCAM entries evaluated?

Sequentially in the order of the original access list.

Numerically by the access list number.

Alphabetically by the access list name.

All entries are evaluated in parallel.

#24. Which of the following are methods that EIGRP uses to initially populate (seed) its EIGRP topology table, before learning topology data from neighbors? (Choose two.)

By adding all subnets listed by the show ip route static command

By adding the subnets of working interfaces over which static neighbors have been defined

By adding all subnets listed by the show ip route connected command

By adding subnets redistributed on the local router from another routing source

#25. Router R1 has eBGP connections to I1 and I2, routers at the same ISP. The company that owns R1 can use public address range 130.1.16.0/20. The following output lists all the IP routes in R1’s routing table within this range. Which of the following answers would cause R1 to advertise the 130.1.16.0/20 prefix to its eBGP peers? (You should assume default settings for any parameters not mentioned in this question.)

Redistribute from OSPF into BGP, filtering so that only routes in the 130.1.16.0/20 range are redistributed, and create a BGP summary for 130.1.16.0/20.

Redistribute from OSPF into BGP, filtering so that only routes in the 130.1.16.0/20 range are redistributed.

Configure R1 with the network 130.1.16.0 mask 255.255.240.0 command.

Configure R1 with the network 130.1.16.0 mask 255.255.240.0 summary-only command.

#26. Which of the following is helpful to allow an IPv6 host to learn the IP address of a default gateway on its subnet?

Stateless RS

Stateless autoconfiguration

Neighbor Discovery Protocol

Stateful DHCP

#27. Which of the following values can be used to mark a packet for QoS? (Choose two)

Select all that apply:

COS

IP Precedence

DSCP

#28. What types of neighbor authentication does Named EIGRP support? (Choose all that apply.)

Select all that apply:

Plain text authentication

SHA hashing authentication

PAP authentication

MD5 hashing authentication

#29. If a switch port is in the errdisable state, what is the first thing you should do?

Use the shut and no shut interface-configuration commands.

Use the clear errdisable port command.

Reload the switch.

Determine the cause of the problem.

#30. Router R1 has two LAN interfaces and three serial interfaces enabled for IPv6. All the interfaces use link-local addresses automatically generated by the router. Which of the following could be the link-local address of R1’s interface S0/0?

FEB0::211:11FF:FE11:1111

FE80::0213:19FF:FE7B:0:1

FE80::200:FF:FE11:1111

FEA0::200:FF:FE11:0

#31. Which of the following OSPF messages contains complete LSAs used during the database exchange process?

LSAck

LSR

DD

Hello

LSU

#32. A laptop inside your network has an IP address of 10.1.1.241. Using NAT, a router translates the 10.1.1.241 private IP address into 198.51.100.54, a public IP address, as the laptop is connecting to a web server on the Internet. The web server has an IP address of 203.0.113.10. What type of address is 203.0.113.10 in this scenario?

Inside local

Outside local

Inside global

Outside global

An outside global address represents a device outside of a network with a globally
routable address. In this scenario, the web server’s IP address of 203.0.113.10 would be
an outside global address.

An inside local address represents a device inside of a network with an address that
is not routable on the public Internet. In this scenario, the laptop’s IP address of
10.1.1.241 would be an inside local address.

An inside global address represents a device on the inside of our network with an
address that is a globally routable address. In this scenario, the laptop’s translated
address of 198.51.100.54 would be an inside global address.

An outside local address represents a device on the outside of a network that has an
address that is not routable on the public Internet. For example, if NAT were being
performed at a remote site, the destination device at the remote site would have an outside
local address. In the scenario presented in this question, there is no outside local address.

#33. What does the IEEE 802.3 standard define?

Switched Ethernet

Spanning Tree Protocol

Ethernet

Token Ring

#34. What evidence can be seen when a switch block is too large? (Choose all that apply.)

Select all that apply:

Broadcast traffic becomes excessive.

Traffic is throttled at the distribution layer switches.

IP address space is exhausted.

Network congestion occurs.

You run out of access layer switch ports.

#35. Policy-Based Routing (PBR) has been enabled on Router R1’s Fa 0/0 interface. Which of the following are true regarding how PBR works? (Choose two.)

Select all that apply:

Packets exiting Fa 0/0 will be compared based on the PBR route map.

Cisco IOS ignores the PBR forwarding directions when a packet matches a route map deny clause.

Cisco IOS ignores the PBR forwarding directions when a packet matches a route map permit clause.

Packets entering Fa 0/0 will be compared based on the PBR route map

#36. Select all the parameters that decide whether to accept new VTP information.

Select all that apply:

VTP priority

Configuration revision number

VTP domain name

VTP server name

#37. A network design shows that R1 has four possible paths from itself to the data center subnets. Which of the following commands is most likely to show you all the possible next-hop IP addresses for these four possible routes?

show ip eigrp topology all-links

show ip route eigrp

show ip eigrp topology

show ip route eigrp all-links

show ip eigrp topology all-learned

#38. You have configured IGMP snooping on a Layer 2 switch on a functioning multicast network. You are asked to determine on which port of the switch #multicast routers are connected, and to determine their IP addresses. Which of the following commands would you use?

show ip igmp snooping querier

show ip igmp router

show ip igmp snooping groups

#39. What does a switch do if a MAC address cannot be found in the CAM table?

The frame is forwarded to the default port.

The switch drops the frame.

The switch generates an ARP request for the address.

The switch floods the frame out all ports (except the receiving port).

#40. Which of these is one of the parameters used to elect a root bridge?

Path Cost

Bridge Priority

Root Path Cost

BPDU revision number

#41. A company uses Routers R1 and R2 to connect to ISP1 and ISP2, respectively, with Routers I1 and I2 used at the ISPs. R1 peers with I1 and R2. R2 peers with I2 and R1. R1 and R2 do not share a common subnet, relying on other routers internal to the enterprise for IP connectivity between the two routers. Which of the following could be used to prevent potential routing loops in this design? (Choose two.)

Select all that apply:

Configuring default routes in the enterprise pointing to both R1 and R2

Redistributing BGP routes into the enterprise IGP

Using an iBGP mesh inside the enterprise core

Tunneling the packets for the iBGP connection between R1 and R2

#42. Identify possible approaches that Cisco IOS uses to authenticate neighboring routers. (Choose two.)

Select all that apply:

Plain text authentication

Two-factor authentication

Hashing authentication

Biometric authentication

#43. What command can be used to globally enable CEF on a router?

ip route-cache cef

ip cef

ip flow egress

no ip route-cache

#44. Process OSPF 1 is redistributing routes from process OSPF 2. Which of the following methods can be used to set the metrics of the redistributed routes? (Choose two.)

Select all that apply:

Use each redistributed route’s OSPF metric using the redistribute command’s metric transparent keywords.

Set the metric using the default-metric subcommand under router configuration mode.

Redistribution is not allowed between two OSPF processes.

Let the metrics default.

#45. Which of these is not a standard type of gigabit interface converter (GBIC) or small form factor pluggable (SFP) module?

1000BASE-FX

1000BASE-T

1000BASE-ZX

1000BASE-LX/LH

#46. What term is given to an ACL that typically resides on a network’s boundary routers (that is, routers facing another autonomous system), which is designed to protect a network from malicious traffic?

Reflexive ACL

Infrastructure ACL

Time-based ACL

Absolute ACL

#47. Router R1 learns two routes with BGP for prefix 200.1.0.0/16. Comparing the two routes, route 1 has a longer AS_Path Length, bigger MED, bigger Weight, and smaller Local Preference. Which of the following is true about Router R1’s choice of best path for this prefix?

Route 1 is the best route.

Route 2 is the best route.

Neither route is considered best.

The routes tie as best, but one will be picked to be placed in the routing table based on tiebreakers.

#48. Which of the following are true for NHRP? (Choose two.)

Select all that apply:

The spoke routers are configured with the IP address of the hub router.

Spoke routers query the hub router asking what tunnel interface IP address corresponds to a known physical interface IP address

The hub router is configured with the IP addresses of the spoke routers.

Spoke routers query the hub router asking what physical interface IP address corresponds to a known tunnel interface IP address.

#49. How many different VLANs can an 802.1Q trunk support?

1024

256

32768

4096

#50. The command output that above was gathered from Router R1. If correctly referenced by an EIGRP distribution list that filters outbound Updates, which of the following statements are true about the filtering of various prefixes by this prefix list? (Choose three.)

Select all that apply:

Prefix 10.0.0.0/8 will be permitted.

Prefix 10.2.2.4/30 will be filtered because of clause 15.

Prefix 10.1.2.224/26 will be filtered because of clause 5.

Prefix 0.0.0.0/0 will be permitted.

Prefix 10.1.2.0/24 will be filtered because of clause 5.

#51. BGP can use what type of authentication?

MD5

DH Group 1

SHA

Clear text

#52. The above output occurs on Router R1. IP SLA operation 1 uses an ICMP echo operation type, with a default frequency of 60 seconds. The operation pings from address 1.1.1.1 to address 2.2.2.2. Which of the following answers is true regarding IP SLA and object tracking on R1?

The tracking return code fails immediately after the SLA operation results in an ICMP echo failure three times.

The tracking return code fails immediately after the SLA operation results in an ICMP echo failure one time.

After moving to a down state, the tracking object moves back to an OK state 45 seconds after the SLA operation moves to an OK state.

After the tracking object fails, the tracking object moves back to an up state 45 seconds later in all cases.

#53. Router R1 directly connects to subnet 10.1.1.0/24 with its Fa0/0 interface. R1 can ping four other working OSPF routers in that subnet. R1 is neither the designated router (DR) nor backup DR (BDR). OSPF is working correctly on all five routers. Which of the following are true on R1? (Choose two.)

Select all that apply:

The show ip ospf neighbors command lists two neighbors off Fa0/0 in the DISCO state.

The show ip ospf neighbors command lists two neighbors off Fa0/0 in the FULL state.

The show ip ospf neighbors command lists two neighbors off Fa0/0.

The show ip ospf neighbors command lists four neighbors off Fa0/0.

#54. Identify the architectural components of Cisco Express Forwarding (CEF). (Choose two.)

Select all that apply:

ARP Cache

Forwarding Information Base (FIB)

Adjacency Table

Routing Information Base (RIB)

#55. What command configures an IP phone to use VLAN 9 for voice traffic?

switchport voice-vlan 9

switchport voice vlan 9

switchport voice 9

switchport voip 9

#56. Examine the following configuration on Router R1 which is the image above. R1’s show ip route 172.16.4.1 command lists a route with outgoing interface S0/1/1. Host 172.16.3.3 uses Telnet to connect to host 172.16.4.1. What will Router R1 do with the packets generated by host 172.16.3.3 because of the Telnet session, assuming that the packets enter R1’s Fa0/0 interface? (Choose two.)

Select all that apply:

The packets will be forwarded out S0/0/1 if it is up.

The packets will be forwarded out S0/0/1, or not at all.

The packets will be forwarded out S0/1/1 if it is up.

The packets will be forwarded out S0/1/1 if it is up, or if it is not up, out S0/0/1.

The packets will be forwarded out S0/0/1 if it is up, or if it is not up, out S0/1/1.

#57. Router R1, in ASN 11, learns a BGP route from BGP peer R22 in ASN 22. R1 and then uses BGP to advertise the route to R2, also in ASN 11. What ASNs would you see in the BGP table on R2 for this route?

22

1

None

11

#58. A hierarchical network’s distribution layer aggregates which of the following?

Routing updates

Broadcast domains

Core switches

Access layer switches

#59. Ethernet autonegotiation determines which of the following?

Quality of service mode

Spanning-tree mode

MAC address learning

Duplex mode

#60. In a Catalyst switch, frames can be filtered with access lists for security and QoS purposes. This filtering occurs according to which of the following?

According to how the access lists are configured

After a CAM table lookup

Simultaneously with a CAM table lookup

Before a CAM table lookup

#61. An engineer plans to configure summary routes with the ip summary-address eigrp asn prefix mask command. Which of the following, when added to such a command, would create a summary that includes all four of the following subnets: 10.1.100.0/25, 10.1.101.96/27, 10.1.101.224/28, and 10.1.100.128 /25?

10.1.100.0 255.255.255.0

10.1.0.0 255.255.192.0

10.1.98.0 255.255.252.0

10.1.64.0 255.255.192.0

#62. An NBMA network has which of the following design issues? (Choose the two best answers.)

Select all that apply:

Designated router issues

Split Horizon issues

Quality of service issues

Bandwidth issues

#63. When migrating from a PVST+ to Rapid-PVST+, which PVST+ features can be disabled, because similar features are built into Rapid-PVST+? (Choose the two best answers.)

Select all that apply:

UplinkFast

Loop Guard

PortFast

BackboneFast

#64. Which of the following devices performs transparent bridging?

L2 Switch

Router

HUB

L3 Switch

#65. The following output occurred as a result of the show ip bgp command on Router R1. The output shows all BGP table entries on R1. How many iBGP-learned routes exist on this router?

1

5

2

3

4

The small letter “i” in the third character position implies that the route was
learned with iBGP. Of the five lines, four have an “i” in the third column.

#66. What is a VLAN primarily used for?

To segment a collision domain

To segment a broadcast domain

To segment an autonomous system

To segment a spanning-tree domain

#67. Which of the following answers lists a multicast IPv6 address?

FE80::1:1234:5678:9ABC

FF80::1:1234:5678:9ABC

FD80::1:1234:5678:9ABC

2000::1:1234:5678:9ABC

#68. In which OSI layer should devices in the distribution layer typically operate?

Layer 4

Layer 2

Layer 3

Layer 1

#69. Which of the following features can provide router redundancy?

HSRP

TACACs

SNMP

AAA

#70. In a Layer 3 MPLS VPN, with what does a CE router form a neighborship?

A CE at a remote location.

A PE in the MPLS network.

No neighborship is formed, because IP multicast traffic cannot be sent across an MPLS network.

No neighborship is formed, because the MPLS network acts as a logical switch.

#71. Which of the following answers is the least likely reason for an engineer to choose to use route redistribution?

To support multiple router vendors

To exchange routes between merged companies

To give separate control over routing to different parts of one company

To knit together an OSPF area if the area becomes discontiguous

#72. What is the Cisco proprietary method for trunk encapsulation?

CDP

ISL

EIGRP

DSL

#73. Router R1 has working interfaces S0/0, S0/1, and S0/2, with IP address/prefix combinations of 10.10.10.1/24, 10.10.11.2/24, and 10.10.12.3/22. R1’s configuration includes the commands router eigrp 9 and network 10.0.0.0 . The show ip eigrp interfaces command lists S0/0 and S0/1 in the command output, but not S0/2. Which answer gives a possible reason for the omission?

S0/2 might currently be in a state other than up/up.

S0/2 might be configured as a passive interface.

R1 has EIGRP neighbors reachable through S0/0 and S0/1, but not through S0/2, so it is not included.

The network 10.0.0.0 command requires the use of mask 255.0.0.0 because of EIGRP being classful by default.

#74. Which are the most important aspects to consider when designing the core layer in a large network? (Choose all that apply.)

Select all that apply:

Low cost

High port density of high-speed ports

Switches that can efficiently forward traffic, even when every uplink is at 100 percent capacity

A low number of Layer 3 routing peers

#75. A user has brought this access point from home and connected it to the network. The network sees a single IP as the access point is using NAT to provide IP addresses to its wireless clients. Which of the following could you use to successfully detect and block the use of such a device?

802.3af PoE network protection

STP in conjunction with CDP

802.1X authentication

Access lists with the IP addresses of the wireless clients

Port security with a maximum of MAC address

#76. An engineer has typed four different single-line prefix lists in a word processor. The four answers show the four different single-line prefix lists. The engineer then does a copy/paste of the configuration into a router. Which of the lists could match a subnet whose prefix length is 27? (Choose two.)

Select all that apply:

ip prefix-list fred permit 10.0.0.0/24 ge 16 le 28

ip prefix-list barney permit 10.0.0.0/24 le 28

ip prefix-list wilma permit 10.0.0.0/24 ge 25

ip prefix-list betty permit 10.0.0.0/24 ge 28

#77. You are attempting to configure EIGRP for IPv6 on a router. However, Cisco IOS presents you with a message indicating that routing is not enabled for IPv6. What command would you issue to enable IPv6 routing?

Router(config)# ipv6 unicast-routing

Router(config-rtr)# ipv6 cef

Router(config)# ipv6 eigrp

Router(config-rtr)# ipv6 unicast-routing

#78. A company uses Routers R1 and R2 to connect to ISP1 and ISP2, respectively, with Routers I1 and I2 used at the ISPs. R1 peers with I1 and R2. R2 peers with I2 and R1. Assuming that as many default settings as possible are used on all four routers, which of the following is true about the next-hop IP address for routes R1 learns over its iBGP connection to R2?

The next hop is R2’s BGP RID.

The next hop is R2’s IP address used on the R1-R2 neighbor relationship.

The next hop is I2’s IP address used on the R2-I2 neighbor relationship.

The next hop is I2’s BGP RID.

#79. Which of the following LSA types describe information related to topology or subnets useful for calculating routes for subnets inside the OSPF domain? (Choose three.)

Select all that apply:

7

1

2

3

5

#80. In a properly designed hierarchical network, a broadcast from one PC is confined to which one of the following?

One switch block

One access layer switch

One access layer switch port

The entire campus network

#81. Which of the following are examples of traffic that can be created as part of an IP Service-Level Agreement operation? (Choose two.)

Select all that apply:

VoIP (RTP)

IPX

SNMP

ICMP Echo

#82. Several links have been broken so that for the next day or two, what was formerly a contiguous area 0 has been broken into two parts. However, both parts of area 0 have working links into area 1 using routers with RID 1.1.1.1 and 2.2.2.2. Which answer lists the command on the router with RID 1.1.1.1 to create a virtual link to help solve this temporary problem?

virtual-link transit-area 1 RID 2.2.2.2

area 1 virtual-link 2.2.2.2

area 0 virtual-link 2.2.2.2

area 0 source-rid 1.1.1.1 dest-rid 2.2.2.2

#83. Cisco EVN uses what type of trunk to carry traffic for all virtual networks between two physical routers?

VNET

Dot1Q

ISL

802.10

#84. Which mode of uRPF causes a router interface to accept a packet, if the network to which the packet’s source IP address belongs is found in the router’s FIB?

Loose mode

Auto mode

Desirable mode

Strict mode

#85. Interface Fa 0/0 on your router has obtained an IP address through DHCP. You notice that in addition to an IP address assigned to interface Fa 0/0, your router now has a default static route configured. What is the administrative distance (AD) of that route?

0

1

255

254

#86. When IPv6 is enabled on the interface of a network device, a Link Local address is assigned to it. Which of the following methods can be used to assign a Link Local address to an IPv6 enabled interface? (Choose three)

Select all that apply:

DHCPv6

Unmodified EUI-64

MAC Address Conversion

Manually Assigned

Modified EUI-64

Randomly Assigned

#87. Which one of these commands can enable Power over Ethernet to a switch interface?

power inline auto

inline power enable

inline power on

power inline on

#88. R1 has five working interfaces, with EIGRP neighbors existing off each interface. R1 has routes for subnets 10.1.1.0/24, 10.1.2.0/24, and 10.1.3.0/24, with EIGRP integer metrics of roughly 1 million, 2 million, and 3 million, respectively. An engineer then adds the ip summary-address eigrp 1 10.1.0.0 255.255.0.0 command to interface Fa0/0. Which of the following is true?

R1 no longer advertises 10.1.1.0/24 to neighbors connected to Fa0/0.

R1 loses and then reestablishes neighborships with all neighbors.

R1 advertises a 10.1.0.0/16 route out Fa0/0, with metric of around 2 million (median metric of component subnets).

R1 advertises a 10.1.0.0/16 route out Fa0/0, with metric of around 3 million (largest metric of component subnets).

#89. Given the following output, determine why BGP chose 2000:3::2 as the best next hop to reach the 2000:4::/64 network.

Lower router ID

Higher Local Preference

Shorter AS path

Lower Weight

#90. Identify the distance-vector routing protocols from the following. (Choose the two best answers.)

Select all that apply:

OSPF

IS-IS

RIP

BGP

EIGRP

#91. Under what configuration mode for Named EIGRP would you configure a passive interface?

Address-Family-Interface configuration mode

Address-Family-Global configuration mode

Address-Family-Topology configuration mode

Address-Family configuration mode

#92. When an interface gets congested, it is possible that all TCP connections traversing that interface will experience TCP slow start. Packets will be dropped and then all TCP sessions will revert to a small window size, thus reducing the efficiency of the link. What is this behavior called?

TCP Global Synchronization

TCP windowing

TCP Session Harmonization

Random Early Detection (RED)

#93. Which of the following answers is most true about the BGP Update message?

A single Update message lists at most a single prefix/length.

It lists a prefix/length, plus the PA settings for that prefix.

It lists a set of path attributes, along with a list of prefixes that use those PAs.

It lists withdrawn routes, but never in the same Update message as newly advertised routes.

The BGP Update message lists a set of PAs, plus any prefixes/lengths that use
those PAs. It can also list withdrawn routes in the same Update message as newly
advertised routes. It can also list multiple prefixes in a single Update message.

#94. Which one or more of the following are the components of a typical switch block?

E-commerce servers

Core layer switches

Access layer switches

Service provider switches

Distribution layer switches

#95. End-user PCs should be connected into which of the following hierarchical layers?

Distribution Layer

Access Layer

Core Layer

#96. Which of the following are characteristics of multipoint GRE? (Choose two.)

An mGRE interface is created for each tunnel.

mGRE supports a wide variety of protocols.

A single mGRE interface can service multiple tunnels.

mGRE only transports unicast IP packets.

#97. Identify two types of time-based ACLs. (Choose two.)

Select all that apply:

Reflexive

Periodic

Absolute

Adaptive

#98. Which of the following answers list either a protocol or function that can be used by a host to dynamically learn its own IPv6 address? (Choose two.)

Select all that apply:

Neighbor Discovery Protocol

Stateless autoconfiguration

Stateful DHCP

Stateless DHCP

#99. Which of the following statements is true about a router’s eBGP peers that is not also true about that same router’s iBGP peers?

The eBGP peer uses port 180 (default).

The eBGP peer updates its AS_PATH PA before sending updates to this router.

The eBGP peer uses the same ASN as the local router.

The eBGP peer neighborship uses TCP

#100. What advantages does the separation of the data and control planes offer with the implementation of an SDN controller?

The use of an SDN implements a distributed model for the control plane allowing for a more appropriate distribution of networking resources

Security parameters for the network can be controlled at the controller because all network traffic traverses the SDN

Protocols such as RDP, SIP, FTP and Telnet are solely the responsibility of the SDN

The SDN controller has insight into the control plane of the whole network and provides a more comprehensive view of the network

#101. For a Catalyst switch to offer Power over Ethernet to a device, what must occur?

The device must send an LLDP message asking for power

The switch is configured to turn on power to the port.

Nothing; power always is enabled on a port.

The switch must detect that the device needs inline power.

The device must send a CDP message asking for power.

#102. In the core layer of a hierarchical network, which of the following are aggregated?

Access layer switches

Distribution switches

Routing tables

Packet filters

#103. What is the purpose of VTP pruning?

Limit the extent of broadcast traffic

Limit the size of the virtual tree

Stop unnecessary VTP advertisements

Limit the number of VLANs in a domain

#104. What information can be obtained by issuing the show bgp ipv6 unicast summary command? (Choose all that apply.)

Select all that apply:

A list of configured BGP neighbors

The local router’s BGP router ID

A list of IPv6 routes known to the BGP table

The AS of configured BGP neighbors

#105. What command can be used to view the configuration of a key chain used by EIGRP?

show key-chain

show key chain

show authentication key chain

show eigrp key chain

#106. Which of the following are most likely to be used as an ASN by a company that has a registered public 16-bit ASN? (Choose two.)

Select all that apply:

1

64550

65000

64000

#107. What is the maximum cable distance for an Ethernet, Fast Ethernet, and Gigabit Ethernet connection over unshielded twisted pair cabling?

328 m

500 m

100 m

100 feet

#108. Multilayer switches using CEF are based on which of these techniques?

Demand-based switching

Topology-based switching

Route caching

NetFlow switching

#109. A router has been configured with the commands router ospf 9 , network 172.16.1.0 0.0.0.255 area 8 and network 172.16.0.0 0.0.255.255 area 9 , in that order. No other OSPF-related commands have been configured. The answers list the IP addresses that could be assigned to this router’s Fa0/0 interface. Which answers list an IP address/prefix length that would cause the router to put Fa0/0 into area 9? (Choose two.)

Select all that apply:

172.16.1.1/26

172.16.0.1/23

172.16.1.1/24

172.16.0.255/23

#110. Which of the following LSA types describe topology information that, when changed, requires a router in the same area to perform an SPF calculation? (Choose two.)

Select all that apply:

4

3

2

1

6

5

7

#111. The following line of output was gathered on enterprise Router Ent1 using the command show ip route . Which of the following answers is most likely to be true, based on this output?

This router’s BGP table lists an AS_Path length of 10 for this route.

This router’s BGP table lists this route as an iBGP route.

This router has set the Weight of this route to 10.

This router’s MED has been set to 10.

#112. When a PC is connected to a Layer 2 switch port, how far does the collision domain spread?

All ports on the switch.

One switch port.

No collision domain exists.

One VLAN.

#113. Which of the following statements concerning this output is true?

Gi0/3 is connected to a switch, which has at least two ports with MAC addresses fa16.3ed2.c7c2 and fa16.3ed2.c745 assigned to those ports

The host on Gi0/3 has two MAC addresses configured

Gi0/3 is connected to an unmanaged switch, which in turn is connected to at least two additional hosts

Gi0/3 is a trunk port connected to a switch with two VLANs allowed, to which there are two hosts connected, each on a different VLAN

The host connected to Gi0/3 was unplugged and over five minutes later, a new host was plugged in to that same port

#114. Which of the following methods of address assignment can assign a collection of IPv6 networks to a router, which could then assign those IPv6 networks to its various interface ?

SLAAC

Stateless SLAAC

DHCPv6-PD

Stateful DHCPv6

#115. Select the implicit instructions that reside at the bottom of an IPv6 ACL. (Choose all that apply.)

Select all that apply:

deny ipv6 any any

permit icmp any any nd-ns

permit icmp any any na-ns

permit icmp any any nd-na

#116. A switch in VTP transparent mode can do which one of the following?

Send its own VTP advertisements

Create a new VLAN

Only listen to VTP advertisements

Cannot make VLAN configuration changes

#117. Routers R1, R2, R3, and R4 connect to the same 10.10.10.0/24 LAN-based subnet. OSPF is fully working in the subnet. Later, R5, whose OSPF priority is higher than the other four routers, joins the subnet. Which of the following are true about the OSPF database exchange process over this subnet at this point? (Choose two.)

Select all that apply:

R5 will send its DD, LSR, and LSU packets to the 224.0.0.5 all-DR-routers multicast address.

The DR will inform R5 about LSAs by sending its DD, LSR, and LSU packets to the 224.0.0.6 all-SPF-routers multicast address.

The DR will inform R5 about LSAs by sending its DD, LSR, and LSU packets to the 224.0.0.5 all-SPF-routers multicast address.

R5 will send its DD, LSR, and LSU packets to the 224.0.0.6 all-DR-routers multicast address.

#118. How many layers are recommended in the hierarchical campus network design model?

7

2

3

4

1

#119. At what layer are traditional 10-Mbps Ethernet, Fast Ethernet, and Gigabit Ethernet the same?

Layer 1

Layer 3

Layer 4

Layer 2

#120. Enterprise Router R1, in ASN 1, connects to ISP Router I1, ASN 2, using eBGP. The single serial link between the two routers uses IP addresses 10.1.1.1 and 10.1.1.2, respectively. Both routers use their S0/0 interfaces for this link. Which of the following commands would be needed on R1 to configure eBGP? (Choose two.)

Select all that apply:

router bgp 1

router bgp 2

neighbor 10.1.1.2 update-source S0/0

neighbor 10.1.1.2 remote-as 2

neighbor 10.1.1.2 update-source 10.1.1.1

#121. Which of the following can either directly or indirectly identify all the interfaces for which 1) OSPF has been enabled and 2) OSPF is not passive? (Choose two.)

Select all that apply:

show ip ospf interface brief

show ip route ospf

show ip protocols

show ip ospf database

#122. For a router to successfully redistribute routes between OSPF and EIGRP, which of the following are true? (Choose two.)

Select all that apply:

The router must have one routing protocol configured, but configuration for both routing protocols is not necessary.

The redistribute command must be configured under EIGRP to send the routes to OSPF.

The redistribute command should be configured under OSPF to take routes from EIGRP into OSPF.

The router must have at least one working link connected to each routing domain.

#123. A network includes a RIPv2 domain, an EIGRP domain, and an OSPF domain. Each pair of routing domains has multiple routers redistributing routes between the pair of domains. The design requires that the redistribution configuration avoid matching based on prefix/length because of the trouble in maintaining such configurations. Which of the following tools can be used in all three routing domains to attempt to prevent domain loops? (This book uses the term domain loop to refer to the long routes that might be chosen for routes when redistribution exists—for example, a route might forward packets from the EIGRP domain, to the OSPF domain, back to EIGRP, and then to subnet X in the RIP domain.)

Setting the default administrative distance differently for internal and external routes

Setting route tags

Setting metrics much higher for all external routes than for all internal routes

Setting administrative distance differently per route

#124. What information is used to forward frames in a Layer 2 switch?

IP addresses

Source MAC address

Destination MAC Address

Source switch port

#125. When configuring Named EIGRP, you want to specify the Hello interval for all interfaces. You could go into address-family-interface configuration mode for each interface and enter the hello-interval command. However, what command could you give from address-family configuration mode to go into a configuration mode that allowed you to configure the Hello Interval for all interfaces with a single hello-interval command?

address-family global

address-family *

af-interface default

af-interface-all

#126. R1 in ASN 1 with loopback1 address 1.1.1.1 needs to be configured with an iBGP connection to R2 with loopback2 IP address 2.2.2.2. The connection should use the loopbacks. Which of the following commands is required on R1?

neighbor 2.2.2.2 update-source loopback1

neighbor 1.1.1.1 remote-as 1

neighbor 2.2.2.2 remote-as 2

neighbor 2.2.2.2 ibgp-mode

neighbor 2.2.2.2 ibgp-multihop 2

#127. which of the following is not a Catalyst switch VTP mode?

Designated

Client

Server

Transparent

#128. Which command configures a switch port to form a trunk without using negotiation?

switchport mode dynamic desirable

switchport mode trunk nonegotiate

switchport mode trunk

switchport mode dynamic auto

#129. A router has been configured with the commands router eigrp 9 and network 172.16.1.0 0.0.0.255 . No other EIGRP-related commands have been configured. The answers list the IP addresses that could be assigned to this router’s Fa0/0 interface. Which answers list an IP address/prefix length that would cause the router to enable EIGRP on Fa0/0? (Choose two answers.)

Select all that apply:

172.16.0.255/23

172.16.0.1/23

172.16.1.1/24

172.16.1.1/26

#130. An engineer has been told to create an implementation plan to influence the choice of best BGP route on a single router using the Weight feature. The sole enterprise Internet-connected router, Ent1, has neighbor relationships with Routers ISP1 and ISP2, which reside inside two different ISPs. The goal is to prefer all routes learned from ISP1 over ISP2 using Weight. Which of the following answers list a configuration step that would not be useful for achieving these goals? (Choose tw

Select all that apply:

Configuring the neighbor weight command on Ent1

Configuring a prefix list to match all Class C networks

Having the ISPs configure the neighbor route-map out command on ISP1 and ISP2, with the route map setting the Weight

Configuring the set weight command inside a route map on Router Ent1

#131. Routers R1 and R2 are OSPF neighbors using their Fa0/0 interfaces, respectively, using default settings for all timers. An engineer adds the ip ospf hello-interval 6 command to R1’s Fa0/0 configuration. Which of the following are true regarding the results from this change? (Choose two.)

Select all that apply:

The show ip ospf neighbor command on R1 lists the revised Hello timer.

The show ip ospf interface brief command on R1 lists the revised Hello timer.

The show ip ospf interface command on R1 lists the revised Hello timer.

The R1-R2 neighborship fails because of Hello timer mismatch.

#132. An engineer has added the above configuration snippet to an implementation planning document. The configuration will be added to Router R1, whose Fa0/0 interface connects to a LAN to which Routers R2 and R3 also connect. R2 and R3 are already EIGRP neighbors with each other. Assuming that the snippet shows all commands on R1 related to EIGRP authentication, which answer lists an appropriate comment to be made during the implementation plan peer review?

The configuration is missing two authentication-related configuration commands.

The key numbers must begin with key 1, so change the key 3 command to key 1.

The configuration is missing one authentication-related configuration command.

Authentication type 9 is not supported; type 5 should be used instead.

#133. A company has a Frame Relay WAN with one central-site router and 100 branch office routers. A partial mesh of PVCs exists: one PVC between the central site and each of the 100 branch routers. Which of the following could be true about the number of EIGRP neighborships?

101 — One between each router (including the central site) and its nearby PE router.

A full mesh — (101 * 100) / 2 = 5050 — One neighborship between each pair of routers.

None of the answers is correct.

A partial mesh totaling 100: one between the central-site router and each of the 100 branches.

#134. A network design shows area 1 with three internal routers, area 0 with four internal routers, and area 2 with five internal routers. Additionally, one ABR (ABR1) connects areas 0 and 1, plus a different ABR (ABR2) connects areas 0 and 2. How many Type 1 LSAs would be listed in ABR2’s LSDB?

15

7

12

6

#135. The following terms describe various design options for enterprise connectivity to the Internet. Which of the following imply that the enterprise connects to two or more ISPs? (Choose two.)

Select all that apply:

Dual Homed

Single Homed

Single Multihomed

Dual Multihomed

#136. Which of the following commands cause a router to bring down BGP neighbor relationships? (Choose two.)

Select all that apply:

clear ip bgp 1.1.1.1 out

clear ip bgp 1.1.1.1

clear ip bgp * soft

clear ip bgp *

#137. What is the default voice VLAN condition for a switch port?

switchport voice vlan none

switchport voice vlan 1

switchport voice vlan dot1p

switchport voice vlan untagged

#138. Two hosts are connected to switch interfaces Gigabit Ethernet 1/0/1 and 1/0/33, but they cannot communicate with each other. Their IP addresses are in the 192.168.10.0/24 subnet, which is carried over VLAN 10. The show vlan id 10 command generates the above output, The hosts are known to be up and connected. Which of the following reasons might be causing the problem? (Choose all that apply.)

Select all that apply:

Interface Gigabit Ethernet 1/0/33 is a VLAN trunk.

The two hosts are assigned to different VLANs.

The two hosts are assigned to VLAN 1

The two hosts are using unregistered MAC addresses.

#139. You are configuring a default route that should direct traffic for unknown networks out of interface Fa 0/0 to a next-hop IP address of 192.168.1.100. Which of the following commands should you use to configure the default route?

ip route 255.255.255.255 255.255.255.255 fa 0/0

ip route 0.0.0.0 0.0.0.0 192.168.1.100

ip route 0.0.0.0 0.0.0.0 fa 0/0

ip route 255.255.255.255 255.255.255.255 192.168.1.100

#140. What is the purpose of breaking a campus network into a hierarchical design?

To make the network more redundant and secure

To facilitate documentation

To follow political or organizational policies

To make the network predictable and scalable

#141. A VLAN is which of the following?

Spanning-tree domain

Broadcast domain

VTP domain

Collision domain

#142. Which command configures a Catalyst switch for VTP client mode?

vtp client

set vtp mode client

vtp mode client

vtp client mode

#143. Which one of the following statements is true about a Catalyst switch?

Both CDP and LLDP are enabled by default.

CDP is enabled and LLDP is disabled by default .

Neither CDP nor LLDP are enabled by default.

CDP is disabled and LLDP is enabled by default.

#144. A network design shows that R1 has four different possible paths from itself to the data center subnets. Which of the following can influence which of those routes become feasible successor routes, assuming that you follow the Cisco-recommended practice of not changing metric weights? (Choose two.)

Select all that apply:

Changing interface delay settings

Current link loads

Configuration of variance

The configuration of EIGRP offset lists

#145. How is a bridging loop best described?

A loop formed between switches for redundancy

A loop formed by the Spanning Tree Protocol

The round-trip path a frame takes from source to destination

A loop formed between switches where frames circulate endlessly

#146. Which of the following BGP filtering methods enabled with the neighbor command will filter BGP prefixes based on the prefix and prefix length? (Choose three.)

Select all that apply:

A neighbor filter-list out command

A neighbor distribute-list out command, referencing an extended ACL

A neighbor distribute-list out command, referencing a standard ACL

A neighbor route-map out command

A neighbor prefix-list out command

#147. How many VTP management domains can a Catalyst switch participate in?

4096

1

Unlimited

2

#148. Which of the following are considered private IPv4 addresses?

Select all that apply:

172.30.1.1

127.0.0.1

192.16.1.1

10.1.1.1

225.0.0.1

#149. Router R1 has a connected route for 10.1.1.0/24 off interface Fa0/0. Interface Fa0/0 has been enabled for OSPF because of a router ospf 1 and network 10.1.1.0 0.0.0.255 area 0 command. R1 also has EIGRP configured, with the redistribute ospf 1 metric 1000 100 10 1 1500 command configured under EIGRP. Which of the following is true?

For any OSPF routes redistributed into EIGRP, the metric components include a value equivalent to 1 Mbps of bandwidth.

For any OSPF routes redistributed into EIGRP, the metric components include a value equivalent to 100 microseconds of delay.

No subnets of network 10.1.1.0 will be redistributed because of the omission of the subnets parameter.

R1 will not redistribute 10.1.1.0/24 into EIGRP, because R1 knows it as a connected route and not as an OSPF route.

#150. An enterprise router, Ent1, displays the above excerpt from the show ip bgp command. Ent1 has an eBGP connection to an ISP router with address 3.3.3.3 and an iBGP connection to a router with address 4.4.4.4. Which of the following is most likely to be true?

The route has been advertised through ASN 1 multiple times.

Router Ent1 will add another ASN to the AS_Path before advertising this route to its iBGP peer (4.4.4.4).

The enterprise likely uses ASN 1.

The neighboring ISP likely uses ASN 1.

#151. Class C network 200.1.1.0/24 was allocated to an ISP that operated primarily in Asia. That ISP then assigned this entire Class C network to one of its Asian customers. Network 200.1.2.0/24 has yet to be assigned to any ISP. Which of the following is most likely to be true?

200.1.2.0/24 will be assigned in the same geography (Asia) as 200.1.1.0/24.

200.1.2.0/24 could be assigned to any registrar or ISP in the world.

200.1.2.0/24 cannot be assigned as public address space.

Routers inside North American ISPs increase their routing table size by 1 as a result of the customer with 200.1.1.0/24 connecting to the Internet.

#152. Which of these protocols dynamically negotiates trunking parameters?

DTP

STP

PAGP

CDP

#153. Identify technologies required for a DMVPN network. (Choose three.)

Select all that apply:

Mgre

NHRP

IP Sec

MPLS

#154. Process EIGRP 1 is redistributing routes from process OSPF 2. Which of the following methods can be used to set the metrics of the redistributed routes? (Choose two.)

Select all that apply:

Set the metric components using the default-metric subcommand under router configuration mode.

Set the metric components using the redistribute command’s metric keyword.

Set the integer (composite) metric using the redistribute command’s metric keyword.

Let the metrics default.

#155. Which of the following is a standardized method of trunk encapsulation?

802.1d

802.1a

802.3z

802.1Q

#156. The above output occurs on Router R1. Which of the following cannot be determined from this output?

R1’s ASN

The next-hop router’s ASN

The AS_PATH length

The type of BGP peer (iBGP or eBGP) that advertised this route to R1

#157. On Router R1, process EIGRP 1 is redistributing routes from process OSPF 2, calling route map fred with the redistribute ospf 2 route-map fred command. R1 has learned intra-area routes for 10.1.1.0/24 and 10.1.2.0/24 in part because of the Type 2 LSAs known for each subnet. The route map filters route 10.1.1.0/24 and allows 10.1.2.0/24 through. Which of the following commands on Router R1 list subnet 10.1.1.0/24? (Choose two.)

Select all that apply:

show ip route

show ip eigrp topology

show ip ospf database

show ip eigrp topology 10.1.1.0/24

#158. Where does a collision domain exist in a switched network?

On a single switch port

On a single VLAN

Across all switch ports

Across all VLANs

#159. Where does a broadcast domain exist in a switched network?

Across all switch ports

On a single VLAN

On a single switch port

Across all VLANs

#160. Which answer describes multilayer switching with CEF?

The first packet is routed and then the flow is cached.

A single database of routing information is built for the switching hardware.

The switch supervisor CPU forwards each packet

The switching hardware learns station addresses and builds a routing database.

#161. An ISP has assigned prefix 3000:1234:5678::/48 to Company1. Which of the following terms would typically be used to describe this type of public IPv6 prefix?

Subnet prefix

Registry prefix

Global routing prefix

ISP Prefix

#162. A switch block should be sized according to which two of the following parameters? (Choose all that apply.)

Select all that apply:

The amount of rack space available

A study of the traffic patterns and flows

The number of access layer users

A maximum of 250 access layer users

The number of servers accessed by users

#163. A network segment has a bandwidth of 10 Mbps, and packets experience an end-to-end latency of 100 ms. What is the bandwidth-delay product of the network segment?

10,000,000 bits

1,000,000 bits

100,000 bits

100,000,000 bits

The bandwidth-delay product of a segment is the measure of the maximum number of bits that can be on the segment at any one time. The bandwidth-delay product is calculated by multiplying the segment’s bandwidth (in bits/sec) by the latency that packets experience as they cross the segment (in sec).

In this question, the bandwidth-delay product can be calculated as follows:

bandwidth-delay product = 10,000,000 bits/sec * 0.1 sec = 1,000,000 bits.

#164. What mechanisms can be used to defend against IP spoofing? (Choose two.)

Select all that apply:

AAA

CAR

UrPF

ACL

#165. Router R1 lists four routes for subnet 10.1.1.0/24 in the output of the show ip eigrp topology all-links command. The variance 100 command is configured, but no other related commands are configured. Which of the following rules is true regarding R1’s decision of what routes to add to the IP routing table? Note that RD refers to reported distance and FD to feasible distance.

Adds all routes because of the ridiculously high variance setting

Adds all routes for which the metric is <= 100 * the best metric among all routes

Adds all successor and feasible successor routes

Adds all successor and feasible successor routes for which the metric is <= 100 * the best metric among all routes

#166. When configuring a router to support SSH connections, which of the following are used in generating an RSA key pair? (Choose two.)

Select all that apply:

Configuration revision number

Domain Name

Router ID

Hostname

#167. Which of the following best defines TCP MSS?

The total data in a TCP segment, including only the TCP header

The total data in a TCP segment, including the Layer 2, IP, and TCP headers

The total data in a TCP segment, not including any headers

The total data in a TCP segment, including only the IP and TCP headers

#168. Router R1 has been configured with the commands router eigrp 9 and network 172.16.2.0 0.0.0.255 , with no other current EIGRP configuration. R1’s (working) Fa0/0 interface has been configured with IP address 172.16.2.2/26. R1 has found three EIGRP neighbors reachable through interface Fa0/0, including the router with IP address 172.16.2.20. When the engineer attempts to add the neighbor 172.16.2.20 fa0/0 command in EIGRP configuration mode, which of the following occurs?

The neighborship with 172.16.2.20 fails and then reestablishes.

Fa0/0 fails.

The existing three neighbors fail.

The command is rejected.

#169. Routers R1 and R2 are EIGRP neighbors. R1 has been configured with the eigrp stub connected command. Which of the following are true as a result? (Choose two.)

Select all that apply:

R1 no longer replies to R2’s Query messages.

R1 can learn EIGRP routes from R2, but R2 cannot learn EIGRP routes from R1.

R1 can send IP packets to R2, but R2 cannot send IP packets to R1.

R2 no longer learns EIGRP routes from R1 for routes not connected to R1.

R2 no longer sends Query messages to R1.

#170. Which IPsec feature primarily performs encryption?

Integrity

Confidentiality

Antireplay

Authentication

#171. A company has a Frame Relay WAN with one central-site router and 100 branch office routers. A partial mesh of PVCs exists: one PVC between the central site and each of the 100 branch routers. All routers use point-to-point subinterfaces and one subnet per PVC. Which of the following is true about OSPF in this design?

Select all that apply:

The central-site router has a neighborship with the Frame Relay switch.

The central-site router has neighborships with all branch routers, but fully adjacent neighborships with only two branches.

None of the other answers is correct.

The central-site router has 100 fully adjacent neighborships with the 100 branches.

#172. Which one of the following is needed for VTP communication?

A Management VLAN

An access VLAN

A trunk link

An IP address

#173. What interface configuration mode command instructs an interface to dynamically obtain its IP address from a DHCP server?

ip address dhcp

ip address 255.255.255.255

ip address bootp

ip address dynamic

#174. What is the maximum number of access layer switches that can connect into a single distribution layer switch?

Limited only by the number of ports on the distribution layer switch

Limited only by the number of ports on the access layer switch

2

1

#175. Two neighboring routers are each configured with a key chain. What element(s) of the key chain must match for the two routers to mutually authenticate? (Choose all that apply.)

Key chain name

Send-lifetime

Key number

Key string

Accept-lifetime

#176. Identify the valid types of OSPFv3 authentication supported in Cisco IOS. (Choose all that apply.)

Select all that apply:

Clear Text

MD5

SHA

PAP

#177. Which of the following settings could prevent two potential EIGRP neighbors from becoming neighbors? (Choose two answers.)

Select all that apply:

Mismatched Hold Timers.

The interface used by one router to connect to the other router is passive in the EIGRP process.

IP addresses of 10.1.1.1/24 and 10.2.2.2/24, respectively.

Duplicate EIGRP router IDs.

#178. Identify the valid IPv6 prefix list commands. (Choose two.)

Select all that apply:

ipv6 prefix-list LIST1 seq 10 permit 2000::/16 ge 64

ipv6 prefix-list LIST1 seq 10 permit 2000::/16 eq 64

ipv6 prefix-list LIST1 seq 10 permit 2000::/16 le 64

ipv6 prefix-list LIST1 seq 10 permit 2000::/16 ne 64

#179. Router R1 has been configured for EIGRP. The configuration also includes an ACL with one line— access-list 1 permit 10.10.32.0 0.0.15.255 —and the EIGRP configuration includes the distribute-list 1 in command. Which of the following routes could not be displayed in the output of the show ip eigrp topology command as a result? (Choose two.)

10.10.44.0 /22

10.10.48.0 /23

10.10.40.96 /27

10.10.32.0 /19

10.10.60.0 /30

#180. A network planning diagram shows a large internetwork with many routers. The configurations show that OSPF has been enabled on all interfaces, IP addresses correctly configured, and OSPF working. For which of the following cases would you expect a router to create and flood a Type 2 LSA?

When OSPF is enabled on a LAN interface, and the router is the only router connected to the subnet

When OSPF is enabled on a Frame Relay point-to-point subinterface, has the lower RID and lower subinterface IP address, and otherwise uses default OSPF configuration on the interface

When OSPF is enabled on a working LAN interface on a router, and the router has been elected as a BDR

None of the other answers are correct.

When OSPF is enabled on a point-to-point serial link, and that router has both the higher router ID and higher interface IP address on the link

#181. Switches provide VLAN connectivity at which layer of the OSI model?

Layer 1

Layer 4

Layer 3

Layer 2

#182. How many distribution switches should be built into each switch block?

4

8

2

1

#183. Router R1 is three router hops away from subnet 10.1.1.0/24. According to various show interfaces commands, all three links between R1 and 10.1.1.0/24 use the following settings: bandwidth (in kbps): 1000, 500, 100000 and delay (in microseconds): 12000, 8000, 100. Which of the following answers correctly identify a value that feeds into the EIGRP metric calculation? (Choose two.)

Select all that apply:

Delay of 20100 tens microseconds

Bandwidth of about 34,000 kilobits per second

Delay of 2010 tens-of-microseconds

Delay of 1200 tens-of-microseconds

Bandwidth of 500 kilobits per second

Bandwidth of 101,500 kilobits per second

#184. Which of the following is the primary motivation for using BGP between an enterprise and its ISPs?

To influence the choice of best path (best route) for at least some routes

To allow redistribution of BGP routes into the IGP routing protocol

To avoid having to configure static routes

To monitor the size of the Internet BGP table

#185. Router R1 has been configured with the redistribute ospf 1 route-map fred command under router eigrp 1 . The route map named fred needs to be configured to match routes to determine which routes are redistributed into EIGRP. Which of the following answers lists an item that cannot be matched by route map fred?

The route’s tag

Subnet number

Whether the route is an E1 or E2 route

Next-hop router IP address of the route

The number of router hops between the router and the subnet

#186. Enterprise Router R1, in ASN 1, connects to ISP Router I1, ASN 2, using eBGP. There are two parallel serial links between the two routers. The implementation plan calls for each router to base its BGP TCP connection on its respective loopback1 interfaces, with IP addresses 1.1.1.1 and 2.2.2.2, respectively. Which of the following commands would not be part of a working eBGP configuration on Router R1?

router bgp 1

neighbor 2.2.2.2 multihop 2

neighbor 2.2.2.2 update-source loopback1

neighbor 2.2.2.2 remote-as 2

#187. Which of the following is true about an OSPF area border router (ABR)?

An ABR must have at least one interface in the backbone area plus at least one other interface in a nonbackbone area.

The ABR must have multiple interfaces connected to the backbone area.

The only requirement to be considered an ABR is at least one interface connected to the backbone area.

An ABR is a router with two interfaces, each connected to a different nonback-bone area.

#188. You configured a router with a Named EIGRP configuration. What command would you use to view the EIGRP for IPv4 topology table?

show address-family-topology

show ip address-family

show ip eigrp topology

show address-family ipv4 topology

#189. R1 has correctly configured EIGRP to filter routes using a route map named question. The configuration that follows shows the entire route map and related configuration. Which of the following is true regarding the filtering action on prefix 10.10.10.0/24 in this case?

It will be filtered because of matching the implied deny all route map clause at the end of the route map.

It will be allowed because of the double negative (two deny references) in clause 10

It will be permitted because of matching clause 20’s reference to prefix-list fred .

It will be filtered because of the deny action in route map clause 10.

#190. Which of the following features work the same in both RIPv2 and RIPng? (Choose three.)

Select all that apply:

Automatic route summarization

Uses RIP-specific authentication

Uses UDP

Maximum useful metric of 15

Distance Vector Logic

#191. What size are the mask and pattern fields in a TCAM entry?

128 bits

168 bits

64 bit

134 bits

#192. Routers R1 and R2 are both running OSPFv2, and they are currently authenticated with one another, using MD5, over their Fa 0/0 interfaces. Interface Fa 0/0 on Router R1 is participating in area 0. However, you notice that the OSPF router configuration on Router R1 does not contain the area 0 authentication message-digest command. What command must have been configured under Router R1’s Fa 0/0 interface?

ip ospf authentication message-digest

area 0 authentication md5

area 1 authentication message-digest

ip ospf authentication 0 md5

#193. R1 is currently advertising prefixes 1.0.0.0/8, 2.0.0.0/8, and 3.0.0.0/8 over its eBGP connection to neighbor 2.2.2.2 (R2). An engineer configures a prefix list (fred) on R1 that permits only 2.0.0.0/8 and then enables the filter with the neighbor R2 prefixlist fred out command. Upon exiting configuration mode, the engineer uses some show commands on R1, but no other commands. Which of the following is true in this case?

The show ip bgp neighbor 2.2.2.2 routes command lists the three original prefixes.

The show ip bgp neighbor 2.2.2.2 routes command lists only 2.0.0.0/8.

The show ip bgp neighbor 2.2.2.2 advertised-routes command lists the three original prefixes.

The show ip bgp neighbor 2.2.2.2 received-routes command lists the three original prefixes.

#194. The above output occurs on Router R2. Which of the following statements can be confirmed as true based on the output?

R2 will consider using PBR for all packets exiting S0/0/0 per route map RM3.

R2 will forward all packets that enter Fa0/0 per the PBR configuration.

R2 will consider using PBR for all packets entering S0/0/0 per route map RM3.

R2 will use route map RM2 when determining how to forward packets that exit interface Fa0/1.

#195. Which one of the following is a standards-based protocol that can be used to discover and collect information about connected devices?

LLDP

ICMP

CDP

STP

#196. Which one of the following is a valid VTP advertisement?

Subset

Triggered update

VLAN database

Domain

#197. The following output on Router R1 lists details of a BGP route for 190.1.0.0/16. Which of the following are true based on this output? (Choose two.)

Select all that apply:

R1 has a neighbor 2.2.2.2 command configured.

R1 is in ASN 1.

R1 has a neighbor 1.1.1.1 command configured.

The show ip bgp command lists a line for 190.1.0.0/16 with both an > and an i on the left.

#198. Which of the following are both advertised by EIGRP in the Update message and included in the formula for calculating the integer EIGRP metric? (Choose two.)

MTU

Delay

Reliability

Jitter

#199. Which of the following show interface output information can you use to diagnose a switch port problem?

Input errors

Collisions

All answers are correct

Port state

Port speed

#200. Access list contents can be merged into which of the following?

TCAM table

ARP Table

FIB table

CAM table

#201. Because BGP neighborships require neighbors to be statically configured, what is the most likely approach that an attacker would take to inject a rogue router into a network and have that rogue router form a BGP neighborship with a production router?

Denial of service (DoS) attack

Session hijacking

Distributed DoS (DDoS) attack

Man-in-the-middle attack

#202. If two switches each support all types of trunk encapsulation on a link between them, which one will be negotiated?

DTP

802.1Q

VTP

ISL

#203. Which of the following is a valid design consideration for a hybrid VPN?

You cannot encapsulate an encrypted packet.

You might need to increase the MTU size for frames on an interface.

You cannot encrypt an encapsulated packet.

You might need to decrease the MTU size for frames on an interface.

#204. On which interface and in which direction should this access list be applied in order to permit traffic from the 192.168.12.0/24 subnet to reach the 2.2.2.0/24 subnet?

On the Fa0/0 interface of R2 in an outbound direction

On the Fa0/1 interface of R2 in an inbound direction

On the Fa0/0 interface of R2 in an inbound direction

None of the above, as the access list should be placed on R1, as close as possible to the source of the traffic

On the Fa0/1 interface of R2 in an outbound direction

#205. Which type of Cisco IOS password encryption uses the Vigenere cipher?

Type 5

Type 4

Type 7

Type 0

#206. Which of the following is not true regarding Cisco IOS default settings for administrative distance?

OSPF internal: 110

EIGRP external: 90

RIP: 120

EIGRP internal: 90

OSPF external: 110

#207. Select the type of network communication flow that is best described as “one-to-nearest.”

Broadcast

Unicast

Multicast

Anycast

#208. Which of the following commands would you implement on R1 in order to statically configure a default route via the S0/0/0 interface?

None of the above because a default route in IPv6 must have a next hop address and not an exit interface

R1(config)#ip route ::/128 Serial 0/0/0

R1(config)#ipv6 route ::/128 Serial 0/0/0

R1(config)#ipv6 route ::/0 Serial 0/0/0

R1(config-if)#ipv6 route ::/0 Serial 0/0/0

#209. Interface Fa 0/0 on your router has obtained an IP address through DHCP. You notice that in addition to an IP address assigned to interface Fa 0/0, your router now has a default static route configured. What command can you issue to prevent a router from automatically installing a default static route based on default gateway information learned through DHCP?

ip dhcp route local

no ip dhcp server response router

no ip dhcp client request router

ip dhcp suppress gateway

#210. No neighborship is formed, because IP multicast traffic cannot be sent across an MPLS network.

Use an IPsec tunnel inside of a GRE tunnel.

Use an IPsec tunnel.

Use a GRE tunnel.

Use a GRE tunnel inside of an IPsec tunnel.

#211. A coworker is developing an implementation plan for a design that uses OSPF 2 and RIPv2 routing domains, with two routers redistributing between the two domains. The coworker asks your help in choosing how to prevent domain loops by setting administrative distance. Assuming that all other related settings use defaults, which of the following would solve the domain loop problem?

The distance ospf intra-area 180 inter-area 180 OSPF subcommand

The distance ospf intra-area 80 inter-area 80 OSPF subcommand

The distance ospf external 80 OSPF subcommand

The distance ospf external 180 OSPF subcommand

#212. Router R1 uses S0/0 to connect through a T/1 to the Frame Relay service. Five PVCs terminate on the serial link. Three PVCs (101, 102, and 103) are configured on subinterface S0/0.1, and one each (104 and 105) are on S0/0.2 and S0/0.3. The configuration shows no configuration related to EIGRP WAN bandwidth control, and the bandwidth command is not configured. Which of the following is true about how Cisco IOS tries to limit EIGRP’s use of bandwidth on S0/0?

R1 limits EIGRP to around 250 kbps on DLCI 104.

R1 does not limit EIGRP because no WAN bandwidth control has been configured.

R1 limits EIGRP to around 150 kbps on every DLCI.

R1 limits EIGRP to around 250 kbps on DLCI 102.

#213. Routers R1 and R2 are EIGRP neighbors using their Fa0/0 interfaces, respectively. An engineer adds the ip hello-interval eigrp 9 6 command to R1’s Fa0/0 configuration. Which of the following is true regarding the results from this change?

The show ip eigrp neighbors command on R1 lists the revised Hello timer.

The R1-R2 neighborship fails because of a Hello timer mismatch.

The show ip eigrp interfaces command on R1 lists the revised Hello timer.

The show ip eigrp interfaces detail command on R1 lists the revised Hello timer.

#214. Under what configuration mode for Named EIGRP would you configure variance?

Address-Family-Global configuration mode

Address-Family-interface configuration mode

Address-Family-Topology configuration mode

Address-Family configuration mode

#215. Assume that you have just entered the configure terminal command. You want to configure the speed and duplex of the first 10/100/1000 twisted-pair Ethernet interface on the first Cisco Catalyst switch stack member to 1-Gbps full-duplex mode. Which one of these commands should you enter first?

speed 1000

duplex full

interface gigabitethernet 1/0/1

interface gigabit ethernet 1/0/1

speed 1000 mbps

#216. Which of the following might present a VTP problem?

Two servers with the same configuration revision number

Two or more VTP servers in a domain

A new server with a higher configuration revision number

A server in two domains

#217. In a switch, frames are placed in which buffer after forwarding decisions are made?

CAM table

Ingress queues

TCAM

Egress queues

#218. Which Catalyst IOS switch command is used to assign a port to a VLAN?

set port vlan vlan-id

access vlan vlan-id

switchport access vlan vlan-id

vlan vlan-id

#219. Which of the following is the shortest valid abbreviation for FE80:0000:0000:0000:0 010:0000:0000:0123?

FE8::1::123

FE80:0:0:0:10::123

FE80::10::123

FE80::10:0:0:123

#220. An engineer is preparing an implementation plan in which the configuration needs to influence BGP’s choice of best path. Which of the following is least likely to be used by the configuration in this implementation plan?

AS_Path

Weight

Origin code

Local_Pref

#221. At what layer are traditional 10-Mbps Ethernet, Fast Ethernet, and Gigabit Ethernet different?

Layer 1

Layer 2

Layer 3

Layer 4

#222. Identify the command used to create an IPv6 default static route.

ipv6 route 0/0 next_hop_ipv6_address

ipv6 route ::/0 next_hop_ipv6_address

ipv6 route 0/128 next_hop_ipv6_address

ipv6 route ::0 next_hop_ipv6_address

#223. R1 is internal to area 1, and R2 is internal to area 2. Subnet 10.1.1.0/24 exists in area 2 as a connected subnet off R2. ABR1 connects area 1 to backbone area 0, and ABR2 connects area 0 to area 2. Which of the following LSAs must R1 use when calculating R1’s best route for 10.1.1.0/24?

Subnet 10.1.1.0/24’s Type 3 LSA in Area 1

ABR1’s Type 1 LSA in area 0

Subnet 10.1.1.0/24’s Type 3 LSA in Area 0

Subnet 10.1.1.0/24’s Type 2 LSA

R2’s Type 1 LSA

#224. Which of the following are common types of core, or backbone, designs? (Choose all that apply.)

Select all that apply:

Multinode core

Loop-free core

Collapsed core

Dual core

Layered Core

#225. Router R1 sets a route tag for subnet 10.1.1.0/24 when redistributing from OSPF into EIGRP. Which of the following units is assigned to the route tag?

Cost

Hop Count

Kilobits/second

No units assigned

Tens-of-microseconds

#226. Which of the following cannot be automatically determined and set if the far end of a connection does not support autonegotiation?

MAC address

Link speed

Link media type

Link duplex mode