[Free] 2019(Nov) EnsurePass Nokia 4A0-102 Dumps with VCE and PDF 71-80

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Question No.71

Which of the following statements about an autonomous system is FALSE?

  1. An AS is a set of routers under a single technical administration.

  2. An AS efficiently advertises all IGP known routes to other ASs.

  3. An AS presents a consistent routing policy to other autonomous systems.

  4. An AS has a 2-byte or 4-byte AS number assigned.

Correct Answer: B

Question No.72

Which of the following regarding the atomic aggregate attribute is TRUE?

  1. It is an optional transitive attribute.

  2. It is an optional non-transitive attribute.

  3. The atomic aggregate flag is always set if the aggregator attribute is set.

  4. The atomic aggregate flag is always set if the AS Path information is lost due to aggregation.

Correct Answer: D

Question No.73

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

  1. Execute a command to re-evaluate all routes in the Local-RIB against the configured export policies.

  2. Execute a command to re-evaluate all routes in the RIB-In against the configured import policies.

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

  4. No further action is required.

Correct Answer: D

Question No.74

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

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

  2. Higher MED is preferred over lower MED.

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

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

Correct Answer: D

Question No.75

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

  1. Authentication is performed before establishing the BGP session.

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

  3. By default, MD5 authentication is disabled.

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

Correct Answer: B

Question No.76

Which of the following describes BGP route processing on the Alcatel-Lucent 7750 SR?

  1. If no import policy is specified, all valid BGP routes are passed to the BGP route selection process.

  2. If no export policy is specified, all non-BGP routes are populated into RIB-Out.

  3. If no import policy is specified, all BGP routes are populated into the route table.

  4. If no import policy is specified, only valid BGP routes are populated into RIB-Out.

Correct Answer: A

Question No.77

An Alcatel-Lucent 7750 SR is configured with a policy to export directly-connected networks to BGP. Which of the following commands verifies that the export was successful?

  1. show router route-table

  2. show router bgp routes

  3. show router bgp routes lt;prefixgt; hunt

  4. show router bgp neighbor lt;ip-addressgt; received-routes

Correct Answer: C

Question No.78

An Alcatel-Lucent 7750 SR receives two updates for the same route with local preferences 200 and 300, respectively. What local preference is sent to eBGP peers?

A.

100

B.

200

C.

300

D.

None

Correct Answer: D

Question No.79

An Alcatel-Lucent 7750 SR receives a route from an eBGP peer without a MED. What MED value is sent to iBGP peers?

A. 100

B. 250

  1. The IGP cost

  2. None

Correct Answer: D

Question No.80

Which of the following is NOT a goal of BGP routing policies?

  1. To protect external networks from instability.

  2. To communicate the architecture of an AS to external ASs.

  3. To protect the local AS and other external ASs from bad NLRI.

  4. To optimize ingress and egress traffic patterns to best serve the users of the AS.

Correct Answer: B

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