What does DSCP stand for in QoS?

What does DSCP stand for in QoS?

• A. Differentiated Services Code Point
• B. Dynamic Service Control Point
• C. Data Service Code Prefix
• D. Digital Signature Certification Protocol

Answer: (A)

DSCP stands for Differentiated Services Code Point. In IP networking, this value is placed in the Differentiated Services field of the IP header and marks how a packet should be treated by routers as it traverses the network. This 6-bit codepoint tells each hop what per-hop behavior to apply, enabling quality of service by prioritizing certain traffic (for example, Expedited Forwarding for low-latency voice traffic or various AF classes for different priorities). The remaining 2 bits in that field are used for ECN, which signals congestion without dropping the packet. Other terms listed are not about marking packets for QoS, which is why they don’t fit here.

DSCP stands for Differentiated Services Code Point. In IP networking, this value is placed in the Differentiated Services field of the IP header and marks how a packet should be treated by routers as it traverses the network. This 6-bit codepoint tells each hop what per-hop behavior to apply, enabling quality of service by prioritizing certain traffic (for example, Expedited Forwarding for low-latency voice traffic or various AF classes for different priorities). The remaining 2 bits in that field are used for ECN, which signals congestion without dropping the packet. Other terms listed are not about marking packets for QoS, which is why they don’t fit here.