Free 4A0-102 Exam Braindumps
4A0-102 Alcatel-Lucent Border Gateway Protocol Questions 26–30 (page: 7)

Updated On: 9-Feb-2026

A router receives two routes from its neighbors: a route from OSPF for 10.0.0.0/24, and a route from BGP for 10.0.0.0/8. Both routes have reachable next hops. Which of the following is TRUE?

  1. Only the BGP route is in the route table.
  2. Both routes are in the route table.
  3. None of the routes is in the route table.
  4. Only the OSPF route is in the route table.

Answer(s): B



Click the exhibit.


AS 65550 owns CIDR block 10.64.0.0/12. Router R3 is advertising Client1 and Client2 networks into BGP. Router R6 advertises the aggregate 10.64.0.0/12 to AS 65541 with "summary-only" enabled. Which of the following routes are received by router R7?

  1. Client1, Client2 and the aggregate.
  2. Only the aggregate.
  3. Only Client1 and the aggregate.
  4. Only Client2 and the aggregate.

Answer(s): C



Which of the following prefix-lists is the most specific match for prefixes 192.168.64.1/20 and 192.168.32.5/19?

  1. Prefix 192.168.0.0/17 longer.
  2. Prefix 192.168.0.0/19 longer.
  3. Prefix 192.168.96.0/19 longer.
  4. Prefix 192.168.0.0/18 longer.

Answer(s): A



The following policies are configured and exported using "export "Policy-1" "Policy-2"". Assuming both "Client- 1" and "Client-2" are properly defined on the router, which routes are advertised?

  1. Client-1 routes only.
  2. Client-2 routes only.
  3. Client-1 and Client-2 routes.
  4. Neither Client-1 nor Client-2 routes.

Answer(s): C



Click the exhibit.


AS 65550 owns the CIDR block 10.64.0.0/12. Router R4 advertises the aggregate 10.64.0.0/12 to AS65540. Which of the following is TRUE regarding the aggregate route advertisement?

  1. The aggregator attribute will not be present, and the atomic aggregate flag will not be set.
  2. The aggregator attribute will not be present, and the atomic aggregate flag will be set.
  3. The aggregator attribute will be present, and the atomic aggregate flag will not be set.
  4. The aggregator attribute will be present, and the atomic aggregate flag will be set.

Answer(s): C



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