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Question No.71
Which of the following statements about an autonomous system is FALSE?
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An AS is a set of routers under a single technical administration.
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An AS efficiently advertises all IGP known routes to other ASs.
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An AS presents a consistent routing policy to other autonomous systems.
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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?
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It is an optional transitive attribute.
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It is an optional non-transitive attribute.
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The atomic aggregate flag is always set if the aggregator attribute is set.
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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?
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Execute a command to re-evaluate all routes in the Local-RIB against the configured export policies.
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Execute a command to re-evaluate all routes in the RIB-In against the configured import policies.
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Execute a command to reset the BGP session with the affected peer or peers.
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No further action is required.
Correct Answer: D
Question No.74
Which of the following statements regarding BGP route selection is TRUE?
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Lower local preference is preferred over higher local preference.
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Higher MED is preferred over lower MED.
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Higher origin code is preferred over lower origin code.
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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?
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Authentication is performed before establishing the BGP session.
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Authentication can only be configuredon the group or neighbor level.
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By default, MD5 authentication is disabled.
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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?
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If no import policy is specified, all valid BGP routes are passed to the BGP route selection process.
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If no export policy is specified, all non-BGP routes are populated into RIB-Out.
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If no import policy is specified, all BGP routes are populated into the route table.
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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?
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show router route-table
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show router bgp routes
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show router bgp routes lt;prefixgt; hunt
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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
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The IGP cost
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None
Correct Answer: D
Question No.80
Which of the following is NOT a goal of BGP routing policies?
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To protect external networks from instability.
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To communicate the architecture of an AS to external ASs.
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To protect the local AS and other external ASs from bad NLRI.
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To optimize ingress and egress traffic patterns to best serve the users of the AS.
Correct Answer: B
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