[Free] Download New Updated (February 2016) Cisco 400-101 Practice Tests 531-540

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QUESTION 531

MPLS LDP IGP synchronization is configured on a link. The OSPF adjacency on that link is UP but MPLS LDP synchronization is not achieved. Which statement about this scenario is true?

 

A.

The router excludes the link from its OSPF LSA type 1.

B.

The router flushes its own router LSA.

C.

The router advertises the link in its router LSA with max-metric.

D.

The router advertises an LSA type 2 for this link, with the metric set to max-metric.

E.

The router advertises the link and OSPF adjacency as it would when the synchronization is achieved.

 

Correct Answer: C

Explanation:

To enable LDP-IGP Synchronization on each interface that belongs to an OSPF or IS-IS process, enter the mpls ldp sync command. If you do not want some of the interfaces to have LDP-IGP Synchronization enabled, issue the no mpls ldp igp sync command on those interfaces. If the LDP peer is reachable, the IGP waits indefinitely (by default) for synchronization to be achieved. To limit the length of time the IGP session must wait, enter the mpls ldp igp sync holddown command. If the LDP peer is not reachable, the IGP establishes the adjacency to enable the LDP session to be established.

When an IGP adjacency is established on a link but LDP-IGP Synchronization is not yet achieved or is lost, the IGP advertises the max-metric on that link.

Reference: http://www.cisco.com/c/en/us/td/docs/ios/12_0s/feature/guide/fsldpsyn.html

 

 

QUESTION 532

Which two 802.1D port states are expected in a stable Layer 2 network? (Choose two.)

 

A.

forwarding

B.

learning

C.

listening

D.

blocking

E.

disabled

 

Correct Answer: AD

 

 

QUESTION 533

DRAG DROP

Drag and drop the fragmentation characteristics on the left to the corresponding protocol on the right.

 

clip_image001

 

Correct Answer:

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QUESTION 534

Which option describes the purpose of the leak-map keyword in the command eigrp stub connected leak-map EigrpLeak?

 

A.

It allows the specified static routes to be advertised.

B.

It allows exceptions to the route summarization that is configured.

C.

It allows specified EIGRP-learned routes to be advertised.

D.

It restricts specified connected routes from being advertised.

 

Correct Answer: C

Explanation:

Example: eigrp stub leak-map Command

In the following example, the eigrp stub command is issued with the leak-map name keyword- argument pair to configure the device to reference a leak map that identifies routes to be advertised that would have been suppressed otherwise.

Device(config)# router eigrp 1

Device(config-router)# network 10.0.0.0

Device(config-router)# eigrp stub leak-map map1

Reference: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_eigrp/configuration/15-mt/ire-15-mt-book/ire-eigrp-stub-rtg.html#GUID-FB899CA9-E9DE-48D8-8048-C971179E4E24

 

 

QUESTION 535

Which option is true about output policing for the control plane?

 

A.

It improves router performance by limiting traffic sent to the control plane.

B.

It improves router performance by limiting traffic sent from the control plane.

C.

It improves router performance by limiting traffic sent to and from the control plane.

D.

It controls traffic originated from the router.

 

Correct Answer: D

 

 

 

 

QUESTION 536

Which three components comprise the structure of a pseudowire FEC element? (Choose three.)

 

A.

pseudowire ID

B.

pseudowire type

C.

control word

D.

Layer 3 PDU

E.

header checksum

F.

type of service

 

Correct Answer: ABC

Explanation:

The Pseudowire ID FEC element has the following components:

Reference: http://www.ciscopress.com/articles/article.asp?p=386788&seqNum=2

 

 

QUESTION 537

DRAG DROP

Drag and drop the Cisco IOS XE subpackage on the left to the function it performs on the right.

 

clip_image003

 

Correct Answer:

clip_image004

 

 

 

 

 

 

 

 

 

QUESTION 538

Which two conditions must be met by default to implement the BGP multipath feature? (Choose two.)

 

A.

The next-hop routers must be the same.

B.

Route reflectors must be enabled.

C.

All attributes must have the same values.

D.

MPLS must be enabled.

E.

The next-hop routers must be different.

 

Correct Answer: CE

 

 

QUESTION 539

Refer to the exhibit. Which two statements about the R1 configuration are true? (Choose two.)

 

clip_image006

 

A.

The IP TTL value is copied to the MPLS field during label imposition.

B.

The structure of the MLPS network is hidden in a traceroute.

C.

The LDP session interval and hold times are configured for directly connected neighbors.

D.

R1 protects the session for 86400 seconds.

E.

All locally assigned labels are discarded.

 

Correct Answer: BD

 

 

QUESTION 540

Which two BGP path attributes are visible in Wireshark? (Choose two.)

 

A.

weight

B.

AS path

C.

local preference

D.

route maps

 

Correct Answer: BC

 

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