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98-366 · Question #170

The default subnet mask for a Class B network is:

The correct answer is D. 255.255.0.0. Class A default subnet mask is 255.0.0.0. Class B default subnet mask is 255.255.0.0. Class C default subnet mask is 255.255.255.0.

Understanding Network Infrastructures

Question

The default subnet mask for a Class B network is:

Options

  • A0.0.0.255
  • B0.0.255.255
  • C255.0.0.0
  • D255.255.0.0

How the community answered

(27 responses)
  • A
    7% (2)
  • B
    4% (1)
  • C
    19% (5)
  • D
    70% (19)

Explanation

Class A default subnet mask is 255.0.0.0. Class B default subnet mask is 255.255.0.0. Class C default subnet mask is 255.255.255.0.

Topics

#subnet mask#Class B network#IPv4 addressing

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