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2021 Nov 4A0-102 sample question

Q61. An Alcatel-Lucent 7750 SR is configured with an export policy to redistribute its directly-connectednetworks into BGP. Which of the following databases contains the routes for these networks? 

A. The routes are in the RIB-In. 

B. The routes are in the Loc-RIB. 

C. The routes are in the RIB-Out. 

D. The routes are not in any of the BGP databases. 

Answer: C 


Q62. Which of the following is TRUE if the local state of BGP is OpenConfirm? 

A. The local system has received a Keepalive message and is ready to exchange updates. 

B. The local system is exchanging Update messages with its neighbor. 

C. The local system has sent a Keepalive message to its neighbor and is waiting to receive oneback. 

D. The local system has sent an Open message to its neighbor and is waiting to receive one back. 

Answer: C 


Q63. Which of the following regarding BGP authentication on the Alcatel-Lucent 7750 SR is FALSE? 

A. Authentication is performed before establishing the BGP session. 

B. Authentication can only be configuredon the group or neighbor level. 

C. By default, MD5 authentication is disabled. 

D. Peer authentication may be optionally requested in an open message. 

Answer: B 


Q64. Which of the following statements regarding BGP route selection is TRUE? 

A. Lower local preference is preferred over higher local preference. 

B. Higher MED is preferred over lower MED. 

C. Higher origin code is preferred over lower origin code. 

D. Lower BGP router ID is preferred over higher BGP router ID. 

Answer: D 


Q65. Which of the following routes is NOT considered an internal route? 

A. A route received from a BGP peer within the same AS. 

B. A route originated by a router in a different cluster of the same AS. 

C. A route received from a BGP peer from a different member AS of a confederation. 

D. A route received from a BGP peer from the same member AS of a confederation. 

Answer: C 


Update 4A0-102 exam answers:

Q66. Which of the following regarding BGP Path Identifier is FALSE? 

A. Path-ID is a four-octet identifier pre-pended to the NLRI field of a BGP update. 

B. Path-ID is an optional transitive attribute used to advertise multiple paths. 

C. Path-ID uniquely identifies each path advertised to a neighbor. 

D. A BGP speaker that re-advertises a route must generate its own Path-ID. 

Answer: B 


Q67. Which of the following regarding the withdrawal of routes from one BGP speaker to another is 

TRUE? 

A. An update message is used. Only a single prefix can be withdrawn at a time. 

B. An update message is used. Multiple prefixes can be withdrawn at a time. 

C. A withdraw message is used. Only a single prefix can be withdrawn at a time. 

D. A withdraw message is used. Multiple prefixes can be withdrawn at a time. 

Answer: B 


Q68. What is the result of configuring the following policy statement as a BGP import policy on theAlcatel-Lucent 7750 SR? 

A. All BGP routes are rejected. 

B. All BGP routes are accepted. 

C. All routes matching prefix list "List-1" are rejected. 

D. All BGP routes matching prefix list "List-1" are rejected. 

Answer: D 


Q69. Upon the successful establishment of a TCP session between peers, what type of BGP message is exchanged? 

A. OpenSent 

B. Keepalive 

C. Open 

D. Notification 

E. Update 

Answer: C 


Q70. Click the exhibit. 

Assume all router-IDs are properly configured, and global IPv6 addresses are used to establisheBGP sessions. Which of the following configurations is required on router A so that router B canexchange traffic with router D? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

Answer: A