An engineer is planning branch WAN links to support unified communications.
Which DSCP value must be assigned to voice traffic?
A . EF
B . AF41
C . COS4
D . BE
Answer: A
Explanation:
Reference:
https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/WAN_and_MAN/QoS_SRND/QoS-SRNDBook/QoSIntro.html