Multiple choice

How many bits make up an IPv4 address?

  1. 128

  2. 64

  3. 48

  4. 32
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

An IPv4 address is 32 bits in length, typically represented as four octets (8 bits each) in dotted decimal notation (e.g., 192.168.1.1). IPv6 uses 128 bits, but the question specifically asks about IPv4. The 48-bit option (C) is the length of MAC addresses, and 64-bit (B) is common in other addressing schemes but not IPv4.

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