Multiple choice

How many WORDs are in a typical IPv4 header without options?

  1. 4

  2. 5

  3. 6

  4. 3

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

The IHL (Internet Header Length) field in an IPv4 header indicates the number of 32-bit words. A standard header without options is 20 bytes, which equals 5 words.