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Computer & Networking BasicsSubnetting

A /26 IPv4 subnet contains how many total addresses?

  • A32
  • B64
  • C128
  • D256
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Correct Answer: B. 64
Explanation: A /26 prefix leaves 6 host bits, so the subnet contains 2^6=64 total addresses.
Reference: Standard computer networking fundamentals: subnetting
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