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

1. What can be used to provide read-only access to QoS configuration information and statistics from a network management station?

A) SYSLOG
B) CISCO-CLASS-BASED-QOS-MIB
C) NetFlow
D) IP SLA
E) NBAR

2. What are three benefits of IntServ and RSVP? (Choose three.)

A) They enable the network to guarantee necessary QoS to individual data flows.
B) RSVP helps network devices identify dynamic port numbers.
C) IntServ networks will reject or downgrade new RSVP sessions if all reservable bandwidth is booked somewhere in a path.
D) The IntServ class-based approach is easy to design and implement.
E) RSVP signaling is a scalable way to ensure all devices maintain an accurate picture of the network state.

3. Refer to the exhibit.

You have implemented RFC 3270 Short Pipe mode in your MPLS network. A customer packet with the DSCP value of AF31 has been sent to the ingress PE router. The PE router has set the MPLS experimental bits per policy, but the policer has remarked the experimental bits of the top label. What will the DSCP value of the packet be when it leaves the egress PE router?

A) BE
B) AF31
C) CS1
D) CS4
E) CS3

4. Refer to the exhibit.

A customer has commented that voice quality is not meeting expectations when calls cross your network. This voice packet was captured from the egress link to the customer. This capture is representative of the customer's voice packets across your network and the queuing method shown is representative of packet treatment across your network. How might the problem be corrected?

A) Enable WRED in the CBWFQs to minimize the possibility of dropping voice packets.
B) Ensure that voice packets are correctly marked when they traverse your network.
C) Set up multiple priority queues to ensure low latency for voice packets.
D) Increase the bandwidth for the voice class.

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

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

Solutions: