MULTIMEDIA AND QUALITY OF SERVICE
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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FIFO
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WFQ
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CBWFQ
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LLQ
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Detailed explanation-1: -What is the default queuing method used on the LAN interfaces of Cisco devices? Unless a queuing method is configured, FIFO is the default queuing method that is used on interfaces of Cisco devices with a speed of 2.048 mbps and greater.
Detailed explanation-2: -Packets received by a network device experiencing congestion cannot be transmitted until previous packets have been processed. If the queue is full, the network device will begin to drop packets as new traffic arrives.
Detailed explanation-3: -Weighted Fair Queuing (WFQ) is an automated scheduling method that provides fair bandwidth allocation to all network traffic. WFQ applies priority, or weights, to identified traffic, classifies it into conversations or flows, and then determines how much bandwidth each flow is allowed relative to other flows.
Detailed explanation-4: -Congestion management. These tools use packet classification and marking to determine which queue to place the packets in. Congestion management tools include priority queuing, first-in, first-out and low-latency queuing.