Cisco 642-785 : Maintaining Cisco Service Provider Quality of Service (MSPQS)

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Cisco 642-785 Exam Syllabus Topics:

Cisco Maintaining Cisco Service Provider Quality of Service (MSPQS) Sample Questions:

1. Which two items can be obtained from the CISCO-NETFLOW-MIB? (Choose two.)

A) CEF tables
B) buffer hits
C) protocol statistics
D) signal-to-noise ratio
E) cache configuration

2. Refer to the exhibit.

Which two statements are correct? (Choose two.)

A) No traffic can be matched to the VoIP traffic class.
B) The BULK-DATA traffic class is missing the match-any option in the class-map command.
C) No traffic can be matched to the REALTIME traffic class.
D) AF11 or AF12 or AF13 marked packets will be matched to the BULK-DATA traffic class.
E) No traffic can be matched to the BULK-DATA traffic class.

3. What are the three primary types of faults associated with QoS fault management? (Choose three.)

A) physical faults
B) queue faults
C) buffer faults
D) assurance faults
E) marking faults
F) classification faults

4. The provider you work for supports a wide range of Cisco router models and Cisco IOS Software releases. You are in the process of moving to a SNMP-based tool to monitor QoS configurations and statistics. What are some of the challenges to this approach?

A) Older versions of Cisco IOS Software do not maintain index persistency, which results in significant changes in the information that is collected unless properly configured.
B) Some models of Cisco routers do not have full support for the class-based QoS MIB, which results in a number of elements that cannot be managed.
C) The SNMP MIB provides direct access into the QoS configuration parameters. Poor configuration could lead to changes that are difficult to track.
D) SNMP should be used in conjunction only with Cisco IP SLA to ensure that the information gathered is reported properly.

5. A customer with an unmanaged CE router has reported experiencing poor quality on the video conferencing and broadcast multimedia applications. To address the issue, the provider has implemented shaping on the PE router to "smooth out" speed mismatches in the network. Which of these is a valid concern with this approach?

A) Shaping should only be used in a TCP-based environment where the application can detect the congestion and adjust. Shaping provides little benefit with UDP applications.
B) In addition to shaping, the provider should implement policing so the application can detect the congestion and throttle traffic.
C) Shaping can only be applied to the outbound interface, which does not prevent the customer from flooding the inbound link to the provider.
D) While shaping may help the broadcast multimedia application, it could cause additional delay in the video conferencing application.

Solutions: