Which two statements about the DiffServ model are true? ()

题目
多选题
Which two statements about the DiffServ model are true? ()
A

A class can be identified as a single application, multiple applications with similar service needs, or be based on the source or destination IP addresses.

B

A drawback of the DiffServ model is that it does not provide backward compatibility with devices that can only use the ToS field.

C

DiffServ uses the DiffServ field in the MAC header to mark frames into behavior aggregates (BAs).

D

The DiffServ field occupies the same eight bits of the MAC header that were previously used for the ToS field.

E

The first six high-order bits of the DiffServ field are used to identify the Resource Reservation Protocol (RSVP) value.

F

The primary goal of DiffServ is scalability.

参考答案和解析
正确答案: C,B
解析: 暂无解析
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第7题:

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