CCIE Routing and Switching Written Exam v5.1 

 

QUESTION 721

Refer to the exhibit. Which statement about this GETVPN configuration is true?

 

clip_image002

 

A.

Co-operative key servers are configured.

B.

Redundant peers are configured.

C.

The key server uses multicast mode to propagate rekey messages.

D.

PSK authentication is configured.

 

Correct Answer: A

 

 

QUESTION 722

Which option is the origin code when a route is redistributed into BGP?

 

A.

IGP

B.

EGP

C.

external

D.

incomplete

E.

unknown

 

Correct Answer: D

 

QUESTION 723

DRAG DROP

Drag each MPLS term on the left to the matching statement on the right.

 

clip_image003

 

Correct Answer:

clip_image004

 

 

QUESTION 724

Which packet does a router receive if it receives an OSPF type 4 packet?

 

A.

hello packet

B.

database descriptor
packet

C.

link state update packet

D.

link state request packet

E.

link state acknowledge packet

 

Correct Answer: C

 

 

 

 

 

 

 

QUESTION 725

Refer to the exhibit. Why is the host unable to obtain an IP address?

 

clip_image006

 

A.

IP source guard is configured on the switch port.

B.

The DHCP server pool addresses are configured incorrectly.

C.

DHCP requests are being blocked.

D.

DHCP option 150 is disabled.

 

Correct Answer: A

 

 

QUESTION 726

Which three statements about DMVPN are true? (Choose three.)

 

A.

It facilitates zero-touch configuration for addition of new spokes.

B.

It supports dynamically addressed spokes using DHCP.

C.

It features automatic IPsec triggering for building an IPsec tunnel.

D.

It requires uses of IPsec to build the DMVPN cloud.

E.

Spokes can build tunnels to other spokes and exchange traffic directly.

F.

It supports server load balancing on the spokes.

 

Correct Answer: ACE

 

 

QUESTION 727

Which two options are disadvantages of a commingled dual-tier WAN rate-based Ethernet circuit? (Choose two.)

 

A.

It requires the maintenance of separate chassis.

B.

It has limited scalability.

C.

It requires additional CPU resources at the subscriber end.

D.

It is more difficult to secure.

E.

It can increase the likelihood of packet drops.

 

Correct Answer: AE

 

 

QUESTION 728

When the BGP additional-paths feature is used, what allows a BGP speaker to differentiate between the different available paths?

 

A.

The remote BGP peer prepends its own next-hop address to the prefix.

B.

A unique path identifier is encoded into a dedicated field to the NLRI.

C.

A route distinguisher is appended to the prefix by the receiving BGP speaker.

D.

The additional path information is encoded in an extended community.

 

Correct Answer: B

 

 

QUESTION 729

DRAG DROP

Drag each show command on the left to the description of its output on a PE router on the right.

 

clip_image007

 

Correct Answer:

clip_image008

 

 

QUESTION 730

Which two improvements do SIA-Query and SIA-Reply messages add to EIGRP? (Choose two.)

 

A.

Stuck-in-active conditions are solved faster.

B.

They prevent a route from going into the stuck-in-active state.

C.

They help in the localization of the real failure in the network.

D.

The EIGRP adjacency between two neighbors never goes down.

 

Correct Answer: AC

 

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