试题详情
- 单项选择题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.
关注下方微信公众号，在线模考后查看
热门试题
- What type of Call Ad
- Which three
- Which of
- During consultation,
- You are the network
- Which three
- Which two statements
- As an ex
- To securely transpor
- Which two̳
- You are the network
- What is high availab
- Which three
- What amount
- Fibre Channel，
- Scalability is provi
- Which one is not the
- When designing
- What are
- Which two of these c