____ operates at the Network layer and manages multicasting.
A) IGMP
B) ICMP
C) UDP
D) IP

Question

Quizplus · Accepted Answer

IGMP (Internet Group Management Protocol) operates at the Network layer and is responsible for managing multicasting. It enables hosts to inform routers that they want to join a particular multicast group, and allows routers to forward multicast traffic only to those hosts that have requested it through IGMP. Therefore, option A is the correct choice. ICMP (Internet Control Message Protocol) is also a Network layer protocol, but it is used for error reporting, not for multicasting. UDP (User Datagram Protocol) is a Transport layer protocol, and IP (Internet Protocol) is a Network layer protocol but it is responsible for packet forwarding rather than multicasting.

____ Operates at the Network Layer and Manages Multicasting