某校园网的地址块是138.138.192.0/20,该校园网被划分为(48) 个 C 类子网,不属于该校园网的子网地址是(49) 。(48)A. 4B. 8C. 16D. 32(49)A. 138.138.203. 0B. 138.138.205.0C. 138.138.207. 0D. 138.138.213.0

某校园网的地址块是138.138.192.0/20,该校园网被划分为(48) 个 C 类子网,不属于该校园网的子网地址是(49) 。

(48)

A. 4

B. 8

C. 16

D. 32

(49)

A. 138.138.203. 0

B. 138.138.205.0

C. 138.138.207. 0

D. 138.138.213.0


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