Which of the following protocols is used for router multicastingA.pdf
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The Internet Group Management Protocol (IGMP) is the protocol used for router multicasting, allowing hosts to report multicast group memberships to neighboring routers. Other options mentioned, such as ICMP and RIP, serve different functions and are not used for multicast management. Security issues are noted with IGMP, as it allows unrestricted creation and joining of multicast groups.
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Which of the following protocols is used for router multicastingA.pdf
- 1. Which of the following protocols is used for router multicasting? A. ICMP B. RIPv1 C. 224.0.0.1 D. IGMP Solution D. Internet Group Management Protocol (IGMP) is used by hosts to report multicast group memberships to neighboring multicast routers. Security problems exist with IGMP because anyone can start a multicast group or join an existing one. Answer A is incorrect because ICMP is used for logical errors and diagnostics. Answer B is incorrect because the Routing Information Protocol (RIP) is a broadcast-based routing protocol. Answer C is incorrect because although 224.0.0.1 is a multicast address, it is not a protocol used for multicast management.