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Tag: 642-642

642-642 QOS Implementing Cisco Quality of Service (QoS)

Which three statements are true about the configuration?

Refer to the exhibit. Which three statements are true about the configuration? (Choose three.)

class-map class-1
match ip rtp 2024 1000

class-map class 2
match dscp 5 6 7

policy-map access-group-1-traffic
class class-1
shape peak 16000
class class-2
police 8000 1000
conform-action set-dscp-transmit 1
exceed-action set-dscp-transmit 0
violate-action drop
class class-default
fair-queue 16
queue-limit 20

interface fastethernet 0/0
service-policy output access-group1-traffic

which additional command will enable these actions?

Based on the following Cisco Catalyst 2950 Series switch configurations, which additional command will enable these actions?

Traffic marked with a CoS of 6 or 7 will be serviced by the priority queue.
Traffic marked with a CoS of 0, 1, or 2 will have a 20-percent weight when serviced by the wrr queue.
Traffic marked with a CoS of 4 will have a 30-percent weight when serviced by the wrr queue.
Traffic marked with a CoS of 3 or 5 will have a 50-percent weight when serviced by the wrr queue.

Catalyst 2950 partial configuration:

no wrr-queue cos-map
wrr-queue cos-map 1 0 1 2
wrr-queue cos-map 2 4
wrr-queue cos-map 3 3 5
wrr-queue cos-map 4 6 7

Which set of additional commands within this policy-map will improve the link efficiency on the serial interfa

This policy-map is applied to a 128-kbps serial interface in the output direction. Which set of additional commands within this policy-map will improve the link efficiency on the serial interface?

policy-map test
class voice
priority 25
class telnet
bandwidth remaining percent 20
class ftp
bandwidth remaining percent 30


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