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2021 Dec 4A0-102 practice test

Q71. Click the exhibit. 

Router R1 is advertising prefix 192.168.1.0/27 with community "no-export. Which routers willreceive an update for that prefix? 

A. Router R2 only. 

B. Routers R2 and R3 only. 

C. Routers R2, R3 and R4 only. 

D. Routers R2, R3, R4and R5. 

Answer: D 


Q72. What is the default Alcatel-Lucent 7750 SR TTL of a BGP advertisement between confederationmembers? 

A. 1 

B. 32 

C. 64 

D. 255 

Answer: A 


Q73. Click the exhibit. 

Assuming router A is configured with "next-hop-self", what does the BGP update for prefix192.168.0.1/27 contain when it arrives at router B? 

A. AS Path of 65200 65100, Next Hop of router A. 

B. AS Path of 65200 65100, Next Hop of router E. 

C. AS Path of 65100, Next Hop of router A. 

D. AS Path of 65100, Next Hop of router E. 

Answer: C 


Q74. Click the exhibit. 

Assuming a full iBGP mesh in ISP 1, how does router R1 in ISP 1 handle a BGP update receivedfrom ISP 2? 

A. The update is sent to router R2 in ISP 1. 

B. The update is sent to routers R2 and R3 in ISP 1. 

C. The update is sent to all routers in ISP 1. 

D. The update is sent to routers R2 and R3 in ISP 1, and to router R3 in ISP 2. 

Answer: C 


Q75. Click the exhibit. 

Routers RR1 are RR2 are redundant route reflectors for clients R3 and R4. Which of the followingis a valid configuration on router RR1? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

Answer: C 


Improved 4A0-102 latest exam:

Q76. Which of the following is TRUE if a BGP session state is Connect? 

A. BGP is waiting for the TCP connection to be completed. 

B. BGP has established a TCP connection, and an Open message has been sent to that neighbor. 

C. The BGP session has been interrupted, and a TCP connection is being re-established. 

D. BGP has failed to establish a TCP connection to that neighbor, and ConnectRetry has beenreset to zero. 

Answer: B 


Q77. Why is a full mesh of iBGP peers required? 

A. To ensure proper route propagation inside a transit AS. 

B. To ensure that all routers are directly connected. 

C. To ensure that all routers run iBGP inside a transit AS. 

D. To maximize control plane scalability. 

Answer: A 


Q78. Which of the following statements regarding BGP shortcuts is FALSE? 

A. MPLS tunnels are used to carry transit traffic across the network. 

B. A full mesh of iBGP peering sessions is not required, 

C. Edge and transit routers need to be configured with BGP. 

D. The transit routers need to support LDP or RSVP-TE LSPs. 

Answer: C 


Q79. Click the exhibit. 

Which of the following statements best describes the BGP sessions within the given network? 

A. The session between AS 65202 and AS 65206 is an iBGP session. 

B. The session between AS 65204 and AS 65206 is an intra-confederation eBGP session. 

C. A BGP session is required between AS 65202 and AS 65204. 

D. The BGP sessions within the member ASs are known as inter-confederation BGP sessions. 

Answer: B 


Q80. Which of the following statements regarding the Originator_ID attribute is TRUE? 

A. The BGP router that originates an update sets the Originator_ID. 

B. The Originator_IDis set to the ClusterJD of the advertising router reflector. 

C. Both confederation and route reflector topologies use the Originator_ID. 

D. A BGP router ignores an update that contains its own BGP router ID as Originator_ID. 

Answer: D