COMPUTER NETWORKING

Detailed explanation-1: -Network traffic can be marked at both Layer 2 and Layer 3 for QoS. Marking traffic at Layer 2 or Layer 3 is a significant decision and will affect how traffic is treated in a network that utilizes QoS.-Layer 2 marking of frames can be performed for non-IP traffic.

Detailed explanation-2: -Which statement describes the QoS classification and marking tools? Answer: Marking is the adding of a value to a packet header. buffering and forwarding of packets in the order of arrival.

Detailed explanation-3: -What type of network traffic requires QoS? Video conferencing utilizes real-time audio and video communications. Both of these are time-sensitive and bandwidth-intensive forms of communication that require quality of service to be active on the network. QoS will ensure an uninterrupted user experience.

Detailed explanation-4: -The type of demands that voice, video, and data traffic place on the network are very different. Voice traffic is predictable and smooth and very sensitive to delays and dropped packets. Voice packets must receive a higher priority than other types of traffic.