A.192.168.1.5/28(32位中前28位是網(wǎng)絡(luò)號(hào));255.255.255.240
B.192.168.1.10/28;255.255.255.240
C.192.168.1.31/28;255.255.255.240
D.192.168.1.40/28;255.255.255.240
A.應(yīng)用層
B.網(wǎng)絡(luò)層
C.表示層
D.物理層
A.12345678
B.password
C.19820102
D.cqLZZ&2016