Which one of the following is the subnet mask equivalent of

Which one of the following is the subnet mask equivalent of /17?

A. 255.255.255.192

B. 255.255.0.0

C. 255.255.1.0

D. 255.255.128.0

E. 255.255.255.128

Solution

Answer

D. 255.255.128.0

255.255.128.0 subnet mask is the equivalent of /17

A, B, C, and E are incorrect.