ISC Exam Questions

which layer of the OSI model?

ICMP and IGMP belong to which layer of the OSI model?

A.
Datagram Layer.

B.
Network Layer.

C.
Transport Layer.

D.
Data Link Layer.

Explanation:
ICMP and IGMP work at the network layer of the OSI model.
Incorrect Answers:
A: There is no Datagram Layer in the OSI model.
C: ICMP and IGMP do not belong to the Transport layer of the OSI model. TCP and UDP are examples of
protocols working at the transport layer.
D: ICMP and IGMP do not belong to the Transport layer of the OSI model. ARP, OSOF, and MAC are
examples of protocols workings at the data link layer.References:
https://en.wikipedia.org/wiki/Network_layer