Multiple choice

The length of an IP packet header can vary, depending on the options used. What is the smallest possible IP header size?

  1. 16 bytes

  2. 20 bytes

  3. 24 bytes

  4. 60 bytes

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The minimum size of an IPv4 header is 20 bytes, which occurs when no optional fields are included.