CompTIA
N10-004 · Question #457
Which of the following is an invalid subnet mask?
The correct answer is B. 255.256.255.0. See the full explanation below for the reasoning.
Question
Which of the following is an invalid subnet mask?
Options
- A255.0.0.0
- B255.256.255.0
- C255.255.255.255
- D255.255.0.0
How the community answered
(50 responses)- A16% (8)
- B74% (37)
- C4% (2)
- D6% (3)
Community Discussion
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