Refer to the exhibit. Voice traffic is marked “precedence 5.” How much bandwidth is allocated for
voice traffic during periods of congestion?
A.
a minimum of 48 kb/s
B.
a maximum of 48 kb/s
C.
a minimum of 48% of the available bandwidth
D.
a maximum of 48% of the available bandwidth
Explanation:
Class-Based Shaping Configuration Task List
To configure Class-Based Shaping, perform the tasks described in the following sections. The task
in the first section is required; the tasks in the remaining sections are optional.
• Configuring Class-Based Shaping (Required)• Configuring CBWFQ Inside Generic Traffic Shaping (Optional)
• Verifying the Configuration of Policy Maps and Their Classes (Optional)
Configuring Class-Based Shaping
To configure Class-Based Shaping, use the first two commands in global configuration mode to
specify the name of the policy map and the name of the class map. To specify average or peak
rate, use the remaining commands in class-map configuration mode:
Configuring CBWFQ
Inside Generic Traffic Shaping
To configure class-based weighted fair queueing (CBWFQ) inside GTS, use the first two
commands in global configuration mode to specify the name of the policy map and the name of
the class map. To specify average or peak rate and to attach the service policy to the class, use
the remaining commands in class-map configuration mode:
Verifying the Configuration of Policy Maps and Their Classes to display the contents of a specific
policy map, a specific class from a specific policy map, or all policy maps configured on an
interface, use the following commands in EXEC mode, as needed:
http://www.cisco.com/en/US/docs/ios/12_2/qos/configuration/guide/qcfcbshp.html
The bandwidth and priority commands both define actions that can be applied within a modular
quality of service command-line interface (MQC) policy-map, which you apply to an interface,
subinterface or virtual circuit (VC) via the service-policy command. Specifically, these commands
provide a bandwidth guarantee to the packets which match the criteria of a traffic class. However,
the two commands have important functional differences in those guarantees
Summary of Differences between bandwidth and priority commands this table lists the functional
differences between the bandwidth and priority commands:
In addition, the bandwidth and priority commands are designed to meet different quality of service
(QoS) policy objectives. This table lists those differing objectives:
http://www.cisco.com/en/US/tech/tk543/tk757/technologies_tech_note09186a0080103eae.
shtml#configuringtheprioritycommand
