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CCIE Routing and Switching Written Exam v5.1

QUESTION 841

Which EEM event detector is triggered by hardware installation or removal?

 

A.

Enhanced-Object-Tracking Event Detector

B.

Resource Event Detector

C.

OIR Event Detector

D.

CLI Event Detector

 

Correct Answer: C

 

 

QUESTION 842

What are the two requirements for BGP to install a classful network into the BGP routing table?(Choose two)

 

A.

The AS contains the entire classfull network.

B.

A classful network statement with a lower administrative distance is in the routing table.

C.

Auto-summary is enabled.

D.

A classful network statement with a classful mask is in the routing table.

E.

Synchronization is enabled.

F.

Synchronization is disabled.

 

Correct Answer: CD

 

 

QUESTION 843

Independent, multiple OSPF processes are entered on the same router, and the processes have the same destination route. Which OSPF process is used?

 

A.

The route with the fewest hops is used.

B.

Both processes are used to load balance the traffic.

C.

The first route process that places a route into the routing table is used.

D.

The route with the shortest prefix is used.

 

Correct Answer: C

 

 

QUESTION 844

Which two statements about MPLS VPNs are true? (Choose two.)

 

A.

PE routers maintain customer routes in the VPN for that customer.

B.

They use the explicit-null label by default.

C.

P routers are used only for label transit.

D.

P routers maintain customer routes in the VPN for that customer.

E.

They support only one route target.

F.

Each interface on a PE router must have its own VRF.

 

Correct Answer: AC

 

 

QUESTION 845

Which three statements about IPsec VTIs are true? (Choose three.)

 

A.

IPsec sessions require static mapping to a physical interface.

B.

They can send and receive multicast traffic.

C.

They can send and receive traffic over multiple paths.

D.

They support IP routing and ACLs.

E.

They can send and receive unicast traffic.

F.

They support stateful failover.

 

Correct Answer: BDE

 

 

QUESTION 846

Which three values can you use to configure an ERSPAN destination session? (Choose three.)

 

A.

VLAN ID

B.

source IP address

C.

destination IP address

D.

ID number

E.

VRF

F.

session name

 

Correct Answer: BDE

 

 

 

QUESTION 847

In IPv6 Path MTU Discovery, which ICMP message is sent by an intermediary router that requires a smaller MTU?

 

A.

Time Exceeded, with code 1 (fragment reassembly time exceeded)

B.

Packet Too Big

C.

Destination Unreachable, with code 4 (the datagram is too big)

D.

Multicast Termination Router

 

Correct Answer: B

 

 

QUESTION 848

Which two operating modes does VPLS support? (Choose two.)

 

A.

transport mode

B.

strict mode

C.

port mode

D.

loose mode

E.

VLAN mode

F.

dynamic mode

 

Correct Answer: CE

 

 

QUESTION 849

Which IPv6 tunneling mechanism requires a service provider to use one of its own native IPv6 blocks to guarantee that its IPv6 hosts will be reachable?

 

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A.

6rd tunneling

B.

automatic 6to4 tunneling

C.

NAT-PT tunneling

D.

ISATAP tunneling

E.

manual ipv6ip tunneling

F.

automatic 4to6 tunneling

 

Correct Answer: A

 

 

QUESTION 850

Which two discovery mechanism does LDP support? (Choose two.)

 

A.

strict

B.

extended

C.

loose

D.

targeted

E.

basic

 

Correct Answer: BE

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