多选题Which two statements about subnet masks are true?（）AIf a bit is turned on (1), the corresponding bit in the IP address is used for the host portion.BIf a bit is turned off (0), the corresponding bit in the IP address is used for the host portion.CIf a

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Which two statements about subnet masks are true?（）

If a bit is turned on (1), the corresponding bit in the IP address is used for the host portion.

If a bit is turned off (0), the corresponding bit in the IP address is used for the host portion.

If a bit is turned on (1), the corresponding bit in the IP address is used for the network prefix.

If a bit is turned off (0), the corresponding bit in the IP address is used for the network prefix.

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多选题Which two statements about subnet masks are true?（）AIf a bit is turned on (1), the corresponding bit in the IP address is used for the host portion.BIf a bit is turned off (0), the corresponding bit in the IP address is used for the host portion.CIf a

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