What subnet mask is represented by the slash notation /20?

Last Updated: Dec 17, 2020
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What subnet mask is represented by the slash notation /20?

  • 255.255.255.248
  • 255.255.224.0
  • 255.255.240.0
  • 255.255.255.0
  • 255.255.255.192

Explanation: The slash notation /20 represents a subnet mask with 20 1s. This would translate to: 11111111.11111111.11110000.0000, which in turn would convert into 255.255.240.0.

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