While implementing TTL security, an engineer issues the PE(config-router-af)#neighbor 2.2.2.2 ttl-security hops 2 command. After issuing this command, which BGP packets does the PE accept?

1. A. from 2.2.2.2, with a TTL of less than 2
2. B. to 2.2.2.2, with a TTL of less than 253
3. C. from 2.2.2.2, with a TTL of 253 or more
4. D. to 2.2.2.2, with a TTL of 2 or more

Correct Answer: C

A network administrator is planning a new network with a segment-routing architecture using a distributed control plane. How is routing information distributed on such a network?

1. A. Each segment is signalled by an SR controller, but each segment makes Its own steering decisions based on SR policy.
2. B. Each segment is signalled by MPLS, and each segment makes steering decisions based on the routing policy pushed by BGP.
3. C. Each segment is signalled by an SR controller that makes the steering decisions for each node.
4. D. Each segment is signalled by a compatible routing protocol and each segment makes its own steering decisions based on SR policy.

Correct Answer: D
https://www.cisco.com/c/en/us/support/docs/multiprotocol-label-switching-mpls/mpls/215215-segment-routing-

A network engineer is configuring a BGP route policy for the SUBNET prefix set. Matching traffic must be dropped, and other traffic must have its MED value set to 400 and community 4:400 added to the route. Which configuration must an engineer apply?

1. A. Option A
2. B. Option B
3. C. Option C
4. D. Option D

Correct Answer: A

Which regular expression query modifier function indicates the start of a string?

1. A. ^
2. B. [^]
3. C. +
4. D. $

Correct Answer: A

Refer to the exhibit.

An engineer configured BGP summarization on a customer's network. Which route is advertised to BGP peers?

1. A. A.-192.0.0.0/16B.192168.0.0/16C.192.168.1.0/24D.192168.0.5/30

Correct Answer: B