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CompTIA® Network+ Certification: Network+ practice questions
 Default Network Mask

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Q10. What is the default subnet mask for Class C network?

 

A.      255.0.0.0

B.      255.255.0.0

C.      255.255.255.0

D.      255.0.255.0

Correct Answer: C.

Explanation:

The default subnet mask for

Class A network: 255.0.0.0

Class B network: 255.255.0.0

Class C network: 255.255.255.0

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