642-887|Given this configuration of an interface

Question: 23

Given this configuration of an interface for MPLS traffic engineering on a Cisco IOS XE router:
interface POS1/1/0
mpls traffic-eng tunnels
ip rsvp bandwidth 5000
Which option lists the equivalent configurations required on a.Cisco IOS XR router?

A.interface POS1/1/0
mpls traffic-eng tunnels
ip rsvp bandwidth 5000

B. mpls traffic-eng
interface POS1/1/0

C. mpls traffic-eng
interface POS1/1/1
bandwidth 5mb

D. mpls traffic-eng
interface POS1/1/0
rsvp interface POS1/1/0

E. mpls traffic-eng
interface POS1/1/0
rsvp interface POS1/1/0.
bandwidth 5000

Answer: E

642-887 Sample Question : 12

Question : 12

Which field in the MPLS shim header is used to support different QoS markings?

A. IP precedence
B. DSCP
C. EXP
D. ToS
E. S
F. Label

Answer : C

642-887 Sample Question : 11

Question : 11

DS-TE implementations on Cisco routers support which bandwidth pool(s) and class type(s)? (Choose Two.)

A. global pool only
B. subpool only
C. global pool and subpool
D. class-type 0 only
E. class-type 1 only
F. class-type 0 and class-type 1

Answer : C,F

642-887 Sample Question : 10

Question : 10

What is the correct formula for determining the CIR.?

A. CIR = Bc/Tc
B. CIR = Bc x Tc
C. CIR = Tc/Bc
D. CIR = Bc + Be
E. CIR = Tc/(Bc+Be)
F. CIR = (Bc+Be)/Tc

Answer : A

642-887 Sample Question : 9

Question : 9

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

Answer: A,C,D

642-887 Sample Question : 8

 Question : 8

When implementing MPLS TE tunnels on Cisco IOS XR routers, what is the tunnel setup and hold priority value range, and which value has the highest priority?

A. 0-63, where 0 is the highest priority
B. 0-63, where 63 is the highest priority
C. 0-7, where 0 is the highest priority
D. 0-7, where 7 is the highest priority

Answer: C

642-887 Sample Question : 7

Question : 7

Which three mechanisms are used to implement MPLS TE? (Choose three.)

A. tunnel interface
B. CSPF
C. RSVP
D. LDP
E. MP-BGP

Answer: A,B,C

642-887 Sample Question : 6

Question : 6

When configuring class-based WRED on Cisco routers, which WRED parameter is not user configurable on a Cisco IOS XR but is user configurable on a Cisco IOS and IOS XE?

A. the ingress or egress direction where the class-based WRED policy will be applied
B. the maximum threshold
C. the minimum threshold
D. the mark probability denominator

Answer: D

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642-887 Sample Question : 5

Question : 5

When implementing MPLS DS-TE on Cisco IOS XR routers, all aggregate Cisco MPLS TE traffic is mapped to which class type by default?

A. class-type 0 (bandwidth global pool)
B. class-type 1 (bandwidth subpool)
C. class-type 2 (bandwidth priority)
D. class type class-default (bandwidth best-effort)

Answer: A

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