[Free] 2019(Nov) EnsurePass Nokia 4A0-102 Dumps with VCE and PDF 21-30

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Question No.21

The user of an Alcatel-Lucent 7750 SR wants to see the effect of changing an import policy immediately. What is the best command to force re-evaluation of the import policy with minimal impact?

  1. Configure router bgp shutdown

  2. Clear router bgp neighbor lt;ip-addressgt; soft

  3. Clear router bgp neighbor lt;ip-addressgt; soft-inbound

  4. Clear router bgp protocol

Correct Answer: C

Question No.22

Click the exhibit. Assume all router-IDs are properly configured, and link-local IPv6 addresses are used to establish the eBGP sessions. Which of the following is the MINIMAL configuration required on router A so that router B can exchange traffic with router D?

image

image

  1. Option A

  2. Option B

  3. Option C

  4. Option D

Correct Answer: C

Question No.23

A BGP router has loopback interfaces 192.168.1.1/27 and 192.168.2.1/27 advertised into BGP using the following export policy. The quot;aggregate 192.168.0.0/16quot; command is executed. What is the effect of this configuration?

image

A. A single route for 192.168.0.0/16 is advertised.

B. BGP routes 192.168.1.0/27, 192.168.2.0/27, and 192.168.0.0/16 are advertised.

C. BGP routes 192.168.1.0/27 and 192.168.2.0/27 are advertised, and 192.168.0.0/16 appears as a quot;Blackholequot; route in the route table only.

D. The given export policy is invalid.

Correct Answer: C

Question No.24

When an Alcatel-Lucent 7750 SR receives a BGP route with an AS Path loop, what action is taken by default?

  1. The route is ignored.

  2. The route is flagged as invalid and placed in the LOC-RIB.

  3. The route is flagged as invalid and placed in the RIB-In.

  4. The route is flagged as invalid and placed in the RIB-Out.

Correct Answer: C

Question No.25

What happens to a route that is rejected by an import policy on an Alcatel-Lucent 7750 SR?

  1. The route is discarded.

  2. The route is kept in the RIB-In, but marked as an invalid route.

  3. The route is moved to the LOC-RIB, but not marked as a used route.

  4. The route is moved to the route table, but not to the FIB.

Correct Answer: B

Question No.26

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.

Correct Answer: B

Question No.27

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 quot;summary-onlyquot; enabled. Which of the following routes are received by router R7?

image

  1. Client1, Client2 and the aggregate.

  2. Only the aggregate.

  3. Only Client1 and the aggregate.

  4. Only Client2 and the aggregate.

Correct Answer: C

Question No.28

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

A. Prefix 192.168.0.0/17 longer. B. Prefix 192.168.0.0/19 longer. C. Prefix 192.168.96.0/19 longer. D. Prefix 192.168.0.0/18 longer.

Correct Answer: A

Question No.29

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

image

  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.

Correct Answer: C

Question No.30

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?

image

  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.

Correct Answer: C

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