Cisco Maintaining Cisco Service Provider Quality of Service (MSPQS) Sample Questions:
1. Which four factors can be used for packet classification in a QoS-aware network device? (Choose four.)
A) MQC
B) destination address
C) DSCP
D) source address
E) IP precedence
F) TTL
2. A service provider will apply this policy at which of these interfaces?
interface Gi1/1 service-policy output SP-POLICY ! policy-map SP-POLICY class TRAFFIC-CLASS-1 police rate percent 20 conform-action transmit exceed-action drop priority ! class TRAFFIC-CLASS-2 bandwidth percent 50 queue-limit 800 ms random-detect exp 3 280 ms 490 ms ! class class-default queue-limit 500 ms random-detect exp 1 200 ms 350 ms random-detect exp 0 100 ms 200 ms ! end-policy-map ! class-map match-any TRAFFIC-CLASS-1 match dscp ipv4 45 ef cs6 match mpls experimental topmost 5 6 end-class-map ! class-map match-any TRAFFIC-CLASS-2 match dscp ipv4 cs2 af21 af23 af31 af32 af33 35 37 match mpls experimental topmost 3 end-class-map !
A) PE interface toward CE
B) P interface toward PE
C) PE interface toward P
D) CE interface toward PE
3. Which two match statements are correct in Cisco IOS Software? (Choose two.)
A) class-map match-none class2 match protocol ip
B) class-map class1 match not protocol ip
C) class-map match-any class3 match dscp af31 match dscp af41
D) class-map class3 match dscp af31 match dscp af41
4. What three statements about WRED are true? (Choose three.)
A) WRED employs a weighted method for determining which packets to drop to avoid congestion. Packets with a higher precedence are less likely to be dropped.
B) WRED should always be used in traffic classes that support a MIX of realtime UDP and TCP traffic.
C) Using WRED will necessitate a large number of dropped packets.
D) WRED is a congestion avoidance technique.
E) Using WRED on the edge devices (CE, PE) is an effective method of implementing
congestion avoidance in the service provider network, because it avoids the congestion prior to reaching the core.
5. What are the benefits of using differentiated services in the service provider backbone? (Choose two.)
A) simple, easy to design, deploy, and operate
B) less bandwidth required to achieve the same SLA
C) more aggregate traffic supported
D) overprovision by two times the maximum aggregate
Solutions:
| Question # 1 Answer: B,C,D,E | Question # 2 Answer: C | Question # 3 Answer: B,C | Question # 4 Answer: A,D,E | Question # 5 Answer: B,C |
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