Which subnet mask corresponds to the CIDR prefix /26?

Options

  • A. 255.255.255.0
  • B. 255.255.255.128
  • C. 255.255.255.192
  • D. More than one of the above
  • E. None of the above

Correct Answer (Detailed Explanation is Below)

C. 255.255.255.192

Detailed Explanation

Explanation: A /26 subnet mask contains 26 network bits. Its binary representation is 11111111.11111111.11111111.11000000, which equals 255.255.255.192 in decimal. It provides 64 total addresses and typically 62 usable host addresses.