试题详情
- 单项选择题Which two statements are true of a network mask?（）
A、A subnet mask specifies the portion of an IP address that is in a binary format
B、A subnet mask specifies the portion of an IP address that is in a decimal format
C、A subnet mask specifies the portion of an IP address that represents a network prefix
D、A subnet mask specifies the portion of an IP address that represetns network hosts
- C
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