Cisco 642-437 Exam Has Been Retired by Cisco

Cisco certification exam 642-437 has been retired by cisco.

642-437 Sample Question: 15

Question: 15

Which QoS methodology combines strict priority queuing with class-based weighted fair queuing?

A. IP RTP Priority
B. Multilink PPP
C. IP Frame Relay RTP Priority
D. RSVP
E. LLQ

Answer: E

642-437 Sample Question: 14

Question: 14

In which situation would the trust boundary be located at the access layer?

A. if the endpoints, both IP phones and PCs, are incapable of marking traffic properly
B. if PCs are switched through an IP phone and the IP phone traffic can be trusted to mark both traffic streams properly
C. if the access layer switch cannot trust or re-mark incoming traffic from endpoints properly
D. if there are endpoints that cannot be trusted and connect directly to the distribution layer

Answer: A

642-437 Sample Question: 13

Question: 13

Which QoS methodology combines strict priority queuing with class-based weighted fair queuing?

A. IP RTP Priority
B. Multilink PPP
C. IP Frame Relay RTP Priority
D. RSVP
E. LLQ

Answer: E

642-437 Sample Question: 12

Question: 12

Which media resource requires hardware digital signal processors?

A. conference bridge
B. music on hold
C. annunciator
D. transcoding

Answer : D

642-437 Sample Question: 11

Question: 11

What is the class selector PHB used for in the differentiated services model?

A. Best-effort service
B. Low-delay service
C. Bandwidth guarantee
D. Backward compatibility

Answer : D

642-437 Sample Question: 10

Question: 10

What are the four types of per-hop behavior used with DSCP? (Choose four)

A. Expedited forwarding
B. Default
C. Class-bit
D. Assured forwarding
E. Class-selector
F. Express forwarding

Answer: A,B,D,E