CompTIA Network+ (N10-007) — Question 199

Which of the following is used to classify network data for the purpose of providing QoS?

Answer options

• A. STP
• B. VLANs
• C. SIP
• D. DSCP

Correct answer: D

Explanation

DSCP (Differentiated Services Code Point) is used to classify and manage network traffic to provide Quality of Service (QoS) by marking packets. STP (Spanning Tree Protocol) is for preventing loops in networks, VLANs (Virtual Local Area Networks) segment networks, and SIP (Session Initiation Protocol) is used for initiating communication sessions, none of which directly provide QoS classification.