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

1. Which three NetFlow versions are supported by Cisco NetFlow Analyzer? (Choose three.)

A) 1
B) 5
C) 8
D) 6
E) 7
F) 9

2. Refer to the exhibit.

A provider uses the recommended mappings for DSCP to MPLS EXP. Several sites connected to the same PE router report that critical data has been experiencing a high number of drops. The customer marks its CRITICAL data as AF31. What appears to be the problem?

A) The provider is using the recommended mappings for DSCP to MPLS EXP, so the CLASS-MAP for the CRITICAL-DATA should contain EXP value of 4.
B) The allocated bandwidth for CRITICAL-DATA should be increased to provide sufficient bandwidth to support the application.
C) The recommended mapping for AF31 is to MPLS EXP 5, which is classified in the REALTIME class, not the CRITICAL DATA class.
D) If the data receiving drops is high priority, it should be marked with MPLS EXP value 7.
E) The classification for CRITICAL-DATA should contain a match-all, not a match-any.

3. Refer to the exhibit.

The service provider uses a three-class service provider QoS model (real-time, critical, best effort). The provider receives reports from a customer about poor quality on their multimedia conferences. The provider recently updated their profiles to include multimedia conferencing (af41) to their real-time class, which includes voice (ef). What are the two most likely causes of this problem? (Choose two.)

A) The MPLS experimental 3 is in the SP-CRITICAL-DATA class, not the SP_REALTIME class.
B) The SP-REALTIME class should include mpls experimental 4, not 5.
C) The SP-CRITICAL-DATA class should not use random detect for multimedia traffic.
D) Multimedia conferencing is included in the SP-CRITICAL-DATA class.
E) The class map for SP-REALTIME does not include the DSCP values for multimedia conferences and voice traffic.

4. When the RFC 3270 Short Pipe mode is used, the PHB at the egress router is based on which of these?

A) The topmost MPLS label EXP value.
B) The MPLS VPN label EXP value.
C) The Differentiated Services Field value in the IP packet header.
D) The packet is re-evaluated, remarked, and the PHB is based on this new marking.

5. Within a QoS policy-map configuration, one of the traffic classes is configured with the random-detect dscp-based configuration command. What will that command accomplish?

A) provides congestion avoidance by selectively delaying the delivery of packets with lower DSCP priority
B) provides congestion management by queueing the traffic using LLQ
C) provides congestion management by queueing the traffic using CBWFQ
D) decreases the probability of congestion by selectively dropping TCP packets before the queue is full
E) decreases congestion by avoiding global UDP synchronization

Solutions: