Latest Cisco CCIE 400-101 Real Exam Download 21-30

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QUESTION 21

Which regular expression will only allow prefixes that originated from AS 65000 and that are learned through AS 65001?

 

A.

^65000_65001$

B.

65000_65001$

C.

^65000_65001

D.

^65001_65000$

 

Answer: D

 

 

QUESTION 22

Which statement describes the BGP add-path feature?

 

A.

It allows for installing multiple IBGP and EBGP routes in the routing table.

B.

It allows a network engineer to override the selected BGP path with an additional path created in

the config.

C.

It allows BGP to provide backup paths to the routing table for quicker convergence.

D.

It allows multiple paths for the same prefix to be advertised.

 

Answer: D

 

 

QUESTION 23

Refer to the exhibit. What does “(received-only)” mean?

clip_image001

A.

The prefix 10.1.1.1 can not be advertised to any eBGP neighbor.

B.

The prefix 10.1.1.1 can not be advertised to any iBGP neighbor.

C.

BGP soft reconfiguration outbound is applied.

D.

BGP soft reconfiguration inbound is applied.

 

Answer: D

 

 

QUESTION 24

Refer to the exhibit. Which statement is true?

 

clip_image003

 

A.

There is no issue with forwarding IPv6 traffic from this router.

B.

IPv6 traffic can be forwarded from this router, but only on Ethernet1/0.

C.

IPv6 unicast routing is not enabled on this router.

D.

Some IPv6 traffic will be blackholed from this router.

 

Answer: D

 

 

QUESTION 24

Refer to the exhibit. What is a reason for the RIB-failure?

 

clip_image005

 

A.

CEF is not enabled on this router.

B.

The route 10.100.1.1/32 is in the routing table, but not as a BGP route.

C.

The routing table has yet to be updated with the BGP route.

D.

The BGP route is filtered inbound and hence is not installed in the routing table.

 

Answer: B

 

 

QUESTION 26

Refer to the exhibit. Which statement is true?

 

clip_image007

 

A.

BGP peer 10.1.2.3 is performing inbound filtering.

B.

BGP peer 10.1.2.3 is a route reflector.

C.

R1 is a route reflector, but BGP peer 10.1.2.3 is not a route reflector client.

D.

R1 still needs to send an update to the BGP peer 10.1.2.3.

 

Answer: D

 

 

QUESTION 27

Refer to the exhibit. Router A and router B are physically connected over an Ethernet interface, and ISIS is configured as shown. Which option explains why the ISIS neighborship is not getting formed between router A and router B?

clip_image008

A.

same area ID

B.

same N selector

C.

same domain ID

D.

same system ID

 

Answer: D

 

 

QUESTION 28

Refer to the exhibit. Which statement is true?

 

clip_image010

 

A.

IS-IS has been enabled on R4 for IPv6, single-topology.

B.

IS-IS has been enabled on R4 for IPv6, multitopology.

C.

IS-IS has been enabled on R4 for IPv6, single-topology and multitopology.

D.

R4 advertises IPv6 prefixes, but it does not forward IPv6 traffic, because the protocol has not been

enabled under router IS-IS.

 

Answer: A

 

 

QUESTION 29

Refer to the exhibit. Why is the neighbor relationship between R2 and R4 shown as ES-IS?

 

clip_image011

 

A.

because there is an MTU mismatch between R2 and R4

B.

because interface S3/0 of R4 is configured as L1/L2

C.

because interface S3/0 of R2 is configured as L1

D.

because there is a hello interval mismatch between R2 and R4

 

Answer: C

 

 

QUESTION 30

Refer to the exhibit. The interface FastEthernet0/1 of both routers R4 and R5 is connected to the same Ethernet segment with a multicast receiver. Which two statements are true? (Choose two)

 

clip_image012

A.

Multicast traffic that is destined to a receiver with IP address 192.168.2.6 will flow through router R4.

B.

Both routers R4 and R5 will send PIM join messages to the RP.

C.

Only router R5 will send a multicast join message to the RP.

D.

Multicast traffic that is destined to a receiver with IP address 192.168.2.6 will flow through router R5.

 

Answer: CD

 

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