Multiple choice

Which one of the following is not an application layer protocol?

  1. FTP

  2. TFTP

  3. IGMP

  4. SNMP

  5. SMTP
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This option is correct because IGMP messages are used by multicast routers to track group memberships on each of its networks. This is the function of transport layer, so this protocol is used in transport layer.

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