Implementing and Operating Cisco Collaboration Core Technologies (CLCOR) — Question 250

What are the last two bits of a DS field in DiffServe Byte used for?

Answer options

• A. AFxy
• B. ECN
• C. INC
• D. RMI

Correct answer: B

Explanation

The last two bits of the DS field are designated for Explicit Congestion Notification (ECN), which is crucial for signaling network congestion. The other options, like AFxy, INC, and RMI, pertain to different aspects of network traffic management and do not represent the function of the last two bits in the DS field.