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Exam A
QUESTION 1
What does the following IOS configuration on the Catalyst 2950 accomplish? Switch(config)# wrr-queue bandwidth 10 20 70 1 Switch(config)# no wrr-queue cos-map Switch(config)# wrr-queue cos-map 1 0 1 Switch(config)# wrr-queue cos-map 2 2 4 Switch(config)# wrr-queue cos-map 3 3 6 7 Switch(config)# wrr-queue cos-map 4 5
A. It enables frames with a CoS 0 or CoS 1 marking to be serviced by WRR (Weight Round Robin) queuing with a weighting value of 1.
B. It enables frames with a CoS 5 marking to be serviced by the expedite queue.
C. It guarantees 10% of the link bandwidth to Queue 1 and 20% to queue 2 and 70% to queue 3. Queue 4 is not used.
D. It sets up the CoS-to-DSCP mappings and DSCP-to-CoS mappings.
E. It sets up the WRR queuing where frames with a CoS of 3 or 6 or 7 will have the highest priority.
Correct Answer: B
QUESTION 2
What VLAN trunk protocol has these characteristics?
-26 byte header and a 4 byte frame check sum
–
Supports a maximum of 1024 VLANs
–
Supports a single instance of spanning tree per-VLAN
A.