What is one of the reasons that custom QoS ACLs are recommended over automatic QoS when configuring ports on a Catalyst 6500 for use with IP phones?
A.
79xx IP phones do not automatically mark voice packets with non-zero DSCP values.
B.
79xx IP phones do not mark protocol packets such as DHCP, DNS, or TFTP with non-zero DSCP values.
C.
79xx IP phones do not mark voice packets with optimal DSCP values.
D.
79xx IP phones use a custom protocol to communicate CDP information to the switch.
Explanation:
In another group of dumps that is supposed to have correct answers, the answer to this question is: 79xx IP phones do not mark protocol packets such as DHCP, DNS, or TFTP with non-zero DSCP values.
Can someone verify or comment?
0
0
I agree and it makes more sense , if you have a pc behind the phone you need to mark the traffic
0
0