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Updated: Jun 02, 2026
No. of Questions: 87 Questions & Answers with Testing Engine
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Cisco Quality of Service (QoS) Sample Questions:
1. Which three factors will affect processing delay? (Choose three.)
A) CPU speed
B) IP switching method
C) distance of media
D) router architecture
E) queuing mechanism
F) type of media
2. A Frame Relay interface has been configured for adaptive shaping with a minimum rate of 15 kbps. The current maximum transmit rate is 56 kbps.
If three FECNs are received over the next 4 seconds, what will be the maximum transmit rate after the last FECN has been received?
A) 28 kbps
B) 7 kbps
C) 10 kbps
D) 15 kbps
E) 37 kbps
F) 56 kbps
3. Where is the error in the following policy-map configuration?
policy-map test class voice priority 168 class mission-critical bandwidth 192 random-detect class class-default fair-queue bandwidth 128
A) The mission-critical traffic class bandwidth guarantee should be lower than the voice traffic class priority bandwidth guarantee.
B) The bandwidth command is not a valid command for the class-default traffic class in this case.
C) Fair-queue should be enabled for the mission-critical traffic class.
D) The voice traffic class is missing the random-detect command.
E) The mission-critical traffic class is missing the queue-limit command.
4. DRAG DROP
5. When configuring a Cisco Catalyst switch to accommodate an IP phone with an attached PC, it is desired that the trust boundary be set between the IP phone and the switch. Which two commands on the switch are recommended to set the trust boundary as described? (Choose two.)
A) mls qos trust cos
B) mls qos trust device cisco-phone
C) switchport priority extend trust
D) no mls qos trust dscp
E) mls qos cos 5
F) mls qos trust extend [cos value]
Solutions:
| Question # 1 Answer: A,B,D | Question # 2 Answer: F | Question # 3 Answer: B | Question # 4 Answer: Only visible for members | Question # 5 Answer: A,B |
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