子網(wǎng)掩碼為255.255.255.240時(shí),以下屬于同一個(gè)子網(wǎng)地址的是() I.200.120.15.18 II.200.120.15.42 III.200.120.15.49 IV.200.120.15.61
A.I、II B.II、III C.III、IV D.I、IV
A./16 B./17 C./18 D./19
A.155.25.0.255 B.155.25.255.128 C.155.25.15.255 D.155.25.255.255