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

1. A customer reports that during peak hours, FTP performance is unacceptable. Currently, the service provider maps the customer FTP traffic into the class-default traffic class and FTP traffic is marked with MPLS EXP1. The class-default class traffic is configured with MPLS EXP based WRED and also with the bandwidth command. What could be causing the FTP performance issues with the customer?

A) The service provider is using LLQ on all the core links, but the FTP traffic is not is assigned to the priority queue.
B) The bandwidth command is causing the FTP issues. It is generally not recommended to use CBWFQ for the class-default traffic class.
C) FTP packets are being more randomly dropped that the other TCP traffic within the class-default traffic class, because the WRED thresholds for MPLS EXP 3 marked packets were configured to improper values.
D) The FTP-type bulk traffic should be mapped to MPLS EXP 5 instead of MPLS EXP 1. The improper marking of FTP packets is causing CBWFQ to assign lower priority for FTP packets within the class-default traffic class.

2. DRAG DROP
Drag the definitions from the left onto the traffic classification on the right. Not all definitions will be used.

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

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

4. Which tool is best suited to provide incident management or trouble ticketing?

A) Remedy
B) Tivoli
C) CiscoWorks
D) Intelliden
E) Voyence

5. Refer to the exhibit on a PE router. What could be causing the issue?
Service-policy output: OUTPUT-POLICY Counters last updated 00:00:00 ago
Class-map: REALTIME (match-any) 845206 packets, 348763573 bytes 30 second offered rate 3000000 bps, drop rate 2500000 bps Match: ip dscp cs5 (40) ef (46) Priority: 10% (500 kbps), burst bytes 327265678, b/w exceed drops: 312925450
Class-map: DSCP-OUT-RTVI (match-any) 0 packets, 0 bytes 30 second offered rate 0000 bps, drop rate 0000 bps Match: ip dscp af41 (0) Queueing queue limit 32 packets (queue depth/total drops/no-buffer drops) 0/0/0 (pkts output/bytes output) 0/0
Class-map: class-default (match-any) 0 packets, 0 bytes 5 minute offered rate 0000 bps, drop rate 0000 bps Match: any Queueing queue limit 1024 packets (queue depth/total drops/no-buffer drops) 0/0/0 (pkts output/bytes output) 0/0

A) PE needs to upgrade to a higher throughput interface.
B) CE marked all traffic incorrectly to DSCP 0.
C) CE marked all traffic incorrectly to DSCP 46.
D) Traffic rate CE sent is over the SLA limit.
E) PE interface was not configured with enough bandwidth.

Solutions:

Question # 1 Answer: C

Question # 2 Answer: Only visible for members

Question # 3 Answer: D,E

Question # 4 Answer: A

Question # 5 Answer: C