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

What is the term that is used for the label that an LSR assigns and distributes to other LSRs in
MPLS?

A. Local
B. Remote
C. Explicit
D. Explicit Null
E. Aggregate


Answer: A

642-887 Sample Question: 8

Question: 8

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: 7

Question: 7

A network engineer must create a Layer 2 switch block design that has deterministic convergence and is loop-free at Layer 2. Which two switch block elements are
needed to meet the requirements? (Choose two.)

A. Layer 3 link between distribution switches
B. HSRP with interface tracking on uplinks to core switches
C. RPVST with equal bridge priority on distribution switches
D. VLANs that do not span access switches
E. Layer 2 link between distribution switches

Answer: A,D

A network engineer must analyze RSVP-TE signaling on a syslog server. Which three RSVP messages are valid? (Choose three.)

642-887 Sample Question: 6

Question: 6

A network engineer must analyze RSVP-TE signaling on a syslog server. Which three
RSVP messages are valid? (Choose three.)

A. RSVP PATH
B. RSVP RESERVATION
C. RSVP ESTABLISHED
D. RSVP PATH TEAR
E. RSVP KILL
F. RSVP INIT

Answer: A,B,D

642-887 Sample Question: 5

Question: 5

Which two features are used to provide Cisco MPLS TE node and link protection? (Choose
two.)

A. autoroute
B. fast reroute
C. backup tunnels
D. BFD

Answer: B,

642-887 Sample Question : 4

QUESTION 4:

A DSCP value of 41 in decimal corresponds to which IP precedence value?

A. 3 – Flash
B. 4 – Flash Override
C. 5 – Critical
D. 6 – Internet Control
E. 7 – Network Control

Answer: C