InIP multicast transmission, packets are transmitted from a source to agroup of receivers. Which of the following statements aretrueabout IP multicast technologies?
A.
Compared with broadcast, IP multicast prevents information flooding.
B.
Compared with broadcast, IP multicast effectively conserves network bandwidth.
C.
Compared with unicast, IP multicast improves information transmission security.
D.
Compared with unicast, IP multicast increases the load of information sources.
A. TRUE→ Unlikebroadcast, which sends data toall hostsin a subnet,multicast only sends data to interested receivers,preventing flooding.
B. TRUE→Multicast optimizes bandwidth usageby sending asingle copy of data, which is thenreplicated at network routers only when necessary.
IP Multicast vs. Unicast:
C. FALSE→Multicast does not improve security; it may expose data to unintended receivers ifnot properly controlled.
D. FALSE→Multicast reduces the load on the sourcebecause asingle data stream serves multiple receiversinstead of sendingindividual unicast streams.
????Reference:Huawei HCIA-Datacom Study Guide, IP Multicast Principles and Benefits.
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