642-642 QOS Quality of Service Review
Number of reviews: 642-642
Associated Certifications: CCIP, CCVP, IP Telephony Design Specialist IP Telephony Express Specialist, IP Telephony Operations Specialist, and IP Telephony Support Specialist
Duration: 90 minutes (45-55 questions) Available Languages

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Practice Management jams

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Explain the components of the hardware and software queuing systems on Cisco and routers as they implement and congestion of Describe the benefits and drawbacks of using WFQ QoS
Explain the purpose and characteristics of Class-Based WFQ (CBWFQ) Explain the purpose and characteristics of Low Latency Queuing (LLQ)
Identify the Cisco IOS commands to configure and monitor LLQ on a Cisco router
Describe and explain the capacity of different queues in> / p, the Cisco Catalyst 2950 <

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5 After learning QoS, for the following, which of the following characterize the problems that can occur with voice traffic when QoS is not used in a network? (Choose two) A.
voice sounds rough.
B. The calls are disconnected.
C. VoIP emissions increase as increases queuing delay, causing delays and problems with caller interaction.
D. call requires more bandwidth than the lost packets are transmitted
answer. AB

6 As a candidate for the CCVP test, can you tell me what a router based his opinion on how much bandwidth for a tool of queues on a serial port available? A.
The control bandwidth is required before a tool is not queue knows how much bandwidth is available.
automatically recognized as the physical speed of the serial interface.
C. The Clock command is required before a tool is not queue knows how much bandwidth is available.
D. By default, the T1 speed, provided that the control bandwidth was configured
answer. D

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