Multiple choice

What field does IPv4 use to identify the next encapsulated protocol?

  1. Next Header

  2. Ethertype

  3. Protocol

  4. Type of Service

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

The IPv4 header contains a 'Protocol' field (8 bits) that indicates the next level protocol (e.g., 6 for TCP, 17 for UDP) encapsulated in the packet.