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

What are the last two bits of a DS field in DiffServe Byte used for?
A . AFxy
B . ECN
C . INC
D . RMI

View Answer

Answer: B

Explanation:

Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/qos_dfsrv/configuration/15-mt/qos-dfsrv-15-mt-book/qos-dfsrv.html