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.

时间:2022-09-08 12:43:26 所属题库:CCDP(642-873)题库

相似题目