CompTIA

N10-004 · Question #456

All of the following are valid subnet masks EXCEPT:

The correct answer is A. 255.255.253.0. See the full explanation below for the reasoning.

Question

All of the following are valid subnet masks EXCEPT:

Options

A255.255.253.0
B255.255.255.0
C255.255.0.0
D255.255.240.0

How the community answered

(36 responses)

A
83% (30)
B
6% (2)
C
8% (3)
D
3% (1)

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Full N10-004 Practice