Which two statements are true about the function of CAC? ()
- A、 CAC provides guaranteed voice quality on a link.
- B、 CAC artificially limits the number of concurrent voice calls.
- C、 CAC is used to control the amount of bandwidth that is taken by a call on a link.
- D、 CAC prevents oversubscription of WAN resources that is caused by too much voice traffic.
- E、 CAC allows an unlimited number of voice calls while severely restricting, if necessary, other forms of traffic.
- F、 CAC solves voice congestion problems by using QoS to give priority to UDP traffic.
正确答案:B,D
答案解析:有
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