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300-420 · Question #85
300-420 Question #85: Real Exam Question with Answer & Explanation
The correct answer is B: All destinations in a set of hosts. A packet sent to a multicast address is delivered to all destinations that are members of that specific multicast group.
Advanced Addressing and Routing Solutions
Question
A packet sent to a multicast address reaches what destinations?
Options
- AThe nearest destination in a set of hosts
- BAll destinations in a set of hosts
- CAll hosts
- DReserved global destinations
Explanation
A packet sent to a multicast address is delivered to all destinations that are members of that specific multicast group.
Common mistakes.
- A. This describes anycast, where the packet is routed to the 'nearest' server or interface in a group, not multicast.
- C. This describes broadcast, where the packet is sent to all hosts on a particular network segment or network.
- D. While multicast addresses have reserved ranges, 'Reserved global destinations' does not accurately describe the delivery mechanism of a multicast packet.
Concept tested. Multicast addressing and delivery
Topics
#Multicast#IP Multicast#Network Addressing#Communication Types
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