Cisco Quality of Service (QoS) : 642-642 valid dumps

642-642 real exams

Exam Code: 642-642

Exam Name: Quality of Service (QoS)

Updated: May 28, 2026

Q & A: 87 Questions and Answers

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Cisco Quality of Service (QoS) Sample Questions:

1. In an unmanaged CE router implementation, how does the service provider enforce the SLA?

A) by using class-based policing on the CE to PE link to limit the customer's input rate
B) by marking on the CE to PE link and using CBWFQ and CB-WRED on the PE to P link
C) by marking on the CE to PE link and using class-based policing on the PE to P link
D) by using class-based random discard on the CE to PE link to limit the customer's input rate


2. Where is the fragment size configured when using FRF.12 link fragmentation and interleaving?

A) within the MQC policy-map
B) within the logical multilink interface
C) within the MQC service-policy
D) within the MQC class-map
E) within the Frame Relay map-class
F) within the physical serial interface


3. Based on the configuration, which two of the following statements are true? (Choose two.)
policy-map police 1
class bulk-ftp
police cir percent 20 pir percent 40
conform-action set-dscp-transmit af11
exceed-action set-dscp-transmit 0
violate-action drop

A) This is a dual-rate, class-based policing example.
B) This is a multi-action, class-based policing example.
C) This configuration will use a single token bucket.
D) This configuration will drop all exceeding traffic.
E) This is a percentage-based policing example.


4. DRAG DROP
Drop


5. DRAG DROP
Drop


Solutions:

Question # 1
Answer: A
Question # 2
Answer: E
Question # 3
Answer: A,E
Question # 4
Answer: Only visible for members
Question # 5
Answer: Only visible for members

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