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November 16, 2016

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2016 Nov 4A0-102 exam topics

Q71. Which of the following is NOT considered an option of export policies? 

A. Advertising customer networks into BGP. 

B. Sending aggregates that summarize the AS s address space. 

C. Sending MEDs to influence ingress traffic from peers. 

D. Preventing unwanted NLRI from entering the AS. 

Answer:


Q72. Based on the default settings for the Alcatel-Lucent 7750 SR, when a policy change is made andcommitted, what action is required by the user for the change to take effect? 

A. Execute a command to re-evaluate all routes in the Local-RIB against the configured exportpolicies. 

B. Execute a command to re-evaluate all routes in the RIB-In against the configured importpolicies. 

C. Execute a command to reset the BGP session with the affected peer or peers. 

D. No further action is required. 

Answer:


Q73. 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:


Q74. Click the exhibit. 

When router A receives the BGP update for the 192.168.0.1/27 prefix, it propagates it to routers Band C. What action is taken by router B when it receives the update? 

A. Router B propagates the BGP update to routers D and C. 

B. Router B propagates the BGP update to router D. 

C. Router B detects duplicates in its BGP database and discards the update. 

D. Router B propagates the update to routers A, C and D. 

Answer:


Q75. Assuming that "client1" and "client2" are directly-connected networks, what is the result ofexecuting the following BGP policy? 

A. "client2" routes will be tagged with communities "West" and "North". 

B. "client2" routes will be tagged with communities "West", "North" and "South". 

C. "client2" routes will be tagged with community "West". 

D. "client2" routes will be tagged with community "South". 

Answer:

66. Which of the following regarding the TTL of a BGP message is TRUE? 

A. TTL is a well-known mandatory BGP attribute. 

B. The default TTL value of an eBGP message is 1, and 64 for an iBGP message. 

C. The default TTL value of an iBGP message can be modified using the multihop command. 

D. The default TTL value of an eBGP message can be modified using the "ttl-security"command. 

Answer:


Most recent 4A0-102 test preparation:

Q76. Click the exhibit. 

Given that ISP 1 and ISP 2 are Tier 2 providers, and that ISP 3 and ISP 4 are Tier 1 providers,what is the most likely relationship between the ISPs? 

A. ISP 1 and ISP 2 have a public transit relationship, while ISP 3 and ISP 4 have a private transitrelationship. 

B. ISP 1 and ISP 2 have a private transit relationship, while ISP 3 and ISP 4 have a public transitrelationship. 

C. ISP 1 and ISP 2 have a private peering relationship, while ISP 3 and ISP 4 have a publicpeering relationship. 

D. ISP 1 and ISP 2 have a public peering relationship, while ISP 3 and ISP 4 have a privatepeering relationship. 

Answer:


Q77. Which of the following is the minimum requirement for an AS to be considered multi-homed? 

A. A single connection to a single service provider. 

B. Two connections to a single service provider. 

C. Two connections to two different service providers. 

D. Multiple connections to different service providers. 

Answer:


Q78. Assuming that "client1" and "client2" are directly-connected networks, what is the result ofexecuting the following BGP export policy? 

A. "client1" routes will be tagged with communities "North" and "West". 

B. "client1" routes will be tagged with community "West". 

C. "client1" routes will be tagged with community "North". 

D. "client1" routes will be rejected. 

Answer:


Q79. Which of the following statements regarding BGP Fast Reroute is FALSE? 

A. BGP Fast Reroute is triggered by IGP events. 

B. The backup path is pre-computed and installed in the FIB. 

C. BGP Fast Reroute is independent of number of affected prefixes. 

D. BGP Fast Reroute uses the optimal path to the destination. 

Answer:


Q80. What kind of BGP attribute is the Multi_Exit_Disc? 

A. Optional transitive attribute. 

B. Optional non-transitive attribute. 

C. Well-known mandatory attribute. 

D. Well-known discretionary attribute. 

Answer:



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