Which of the following is used to classify network data for the purpose of providing QoS?
A.
STP B.
VLANs C.
SIP D.
DSCP.
D.
Which of the following is used to classify network data for the purpose of providing QoS?
A.
STP
B.
VLANs
C.
SIP
D.
DSCP.
D.
The correct answer is D. DSCP.
Different types of network traffic have different requirements for bandwidth, latency, and other parameters. To ensure that these requirements are met, Quality of Service (QoS) mechanisms are used. QoS is a set of techniques that allow network administrators to give certain types of traffic priority over others.
One of the ways to implement QoS is by using Differentiated Services Code Point (DSCP) to classify network traffic. DSCP is a field in the IP header of a packet that allows a packet to be marked with a value that represents the type of traffic it carries. DSCP values range from 0 to 63 and are used to classify packets into different traffic classes.
Once the packets have been classified into different traffic classes, the network can then be configured to provide different levels of service to each class. For example, the network can be configured to give high priority to packets carrying voice traffic, while giving lower priority to packets carrying data traffic.
To summarize, DSCP is used to classify network data for the purpose of providing QoS. It allows packets to be marked with a value that represents the type of traffic they carry, and this marking is used to give different levels of service to different types of traffic.