Daily Archives: Tuesday, December 6, 2016

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QUESTION 81
What are the four fields inside the MPLS shim header? (Choose four.)

A.    EXP
B.    TTL
C.    Version
D.    S
E.    Length
F.    Label
G.     Type
H.     FCS

(more…)

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QUESTION 61
Which Cisco IOS XR command should be used to identify if MPLS TE FRR is enabled?

A.    show mpls traffic-eng tunnel <tunnel#>
B.    show mpls frr
C.    show mpls traffic-eng protection
D.    show mpls protection
E.    show mpls fast-reroute

(more…)

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QUESTION 41
When using the tunnel mpls traffic-eng path-option 1 explicit name test command in Cisco MPLS TE tunnel configurations, the test explicit-path configuration will consist of a list of which values?

A.    tunnel endpoint
B.    resource class affinity
C.    MPLS label
D.    IP address

(more…)

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Following questions and answers are all new published by Cisco Official Exam Center: http://www.lead2pass.com/642-887.html

QUESTION 21
Which statement is correct regarding the default MPLS TTL behavior?

A.    When an ingress edge LSR receives an IP packet, it will decrement the IP TTL field by 1; then it will
set the MPLS Label TTL field to 255.
B.    When an ingress edge LSR receives an IP packet, it will decrement the IP TTL field by 1; then it will
copy the decremented IP TTL field into the MPLS Label TTL field.
C.    When an ingress edge LSR receives an IP packet, it will just copy the IP TTL field into the MPLS Label
TTL field.
D.    When an ingress edge LSR receives an IP packet, it will copy the IP TTL field into the MPLS Label
TTL field first; then it will only decrement the MPLS Label TTL field by 1.
E.    When an ingress edge LSR receives an IP packet, it will copy the IP TTL field into the MPLS Label
TTL field first; then it will only decrement the IP TTL field by 1.

(more…)

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QUESTION 1
Which three conditions can occur when metering traffic using a dual token bucket traffic policing QoS mechanism on Cisco routers? (Choose three.)

A.    conform
B.    pass
C.    violate
D.    exceed
E.    burst
F.    matched

(more…)

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QUESTION 101
The core routers within a transit AS are running both IBGP and IGP. The edge routers within the transit AS are using the next-hop-self option to establish the IBGP sessions. What can be implemented to improve the routing performance to all external prefixes?

A.    enable route redistribution from BGP into IGP
B.    disable BGP synchronization on all the core routers
C.    enable CEF on all the core and edge routers
D.    enable route redistribution from IGP into BGP
E.    use route reflectors within the core

(more…)

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QUESTION 81
Refer to the exhibit. Which three statements are correct regarding the Cisco IOS-XR configuration? (Choose three.)

(more…)