Network Traffic Classification and QoS Management in Layer 3 IP Networks

Answer - C.

Differentiated Services Code Point (DSCP) is a means of classifying and managing network traffic and of providing quality of service (QoS) in modern Layer 3 IP networks.

It uses the 6-bit Differentiated Services (DS) field in the IP header for the purpose of packet classification.

Differentiated services (DiffServ) is a computer networking architecture that specifies a simple and scalable mechanism for classifying and managing network traffic and providing quality of service (QoS) on modern IP networks.

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The correct answer is C. DSCP.

DSCP (Differentiated Services Code Point) is a means of classifying and managing network traffic and of providing quality of service (QoS) in modern Layer 3 IP networks. DSCP values can be set in the IP header of network packets to indicate the desired level of service for that packet. This enables network devices to prioritize traffic based on the DSCP value, ensuring that packets with higher priority receive preferential treatment.

BFD (Bidirectional Forwarding Detection) is a protocol used to quickly detect failures in network paths between routers. It is typically used to detect failures in Layer 3 connections, such as those between routers. BFD is not used for traffic classification or QoS.

BGP (Border Gateway Protocol) is a routing protocol used to exchange routing information between routers in different autonomous systems (ASes). BGP is typically used in large-scale networks, such as the internet, to enable routers in different ASes to communicate with each other. BGP is not used for traffic classification or QoS.

MEP (Maintenance End Point) is a component of the IEEE 802.1ag Connectivity Fault Management (CFM) protocol. MEPs are used to detect and locate faults in Ethernet networks. MEPs are not used for traffic classification or QoS.