單項選擇題To ensure voice packets are kept within the Committed Information Rate (CIR) of a Frame Relaylink, what should be used in the CPE?()

A. prioritization
B. classification
C. fragmentation
D. traffic shaping


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1.單項選擇題Which QoS requirement applies to streaming video traffic?()

A. one-way latency of 150 ms to 200 ms
B. jitter of 30 ms or less
C. packet loss of 2 percent or less
D. 150bps of overhead bandwidth

3.多項選擇題Which two are characteristics of RSVP? ()

A. RSVP itself provides bandwidth and delay guarantees.
B. For RSVP to be end-to-end, all devices must support RSVP.
C. RSVP reservations are maintained by a centralized reservations server.
D. An RSVP compatible QoS mechanism must be used to implement guarantees according to RSVP reservations.

5.單項選擇題What is one of the reasons that custom QoS ACLs are recommended over automatic QoS when configuring ports on a Catalyst 6500 for use with IP phones?()

A. 79xx IP phones do not automatically mark voice packets with non-zero DSCP values.
B. 79xx IP phones do not mark protocol packets such as DHCP, DNS, or TFTP with non-zero DSCP values.
C. 79xx IP phones do not mark voice packets with optimal DSCP values.
D. 79xx IP phones use a custom protocol to communicate CDP information to the switch.