Which of the following is true when describing a multicast address?a)P...
Packets addressed to a multicast address are delivered to all interfaces identified by the multicast address, the same as in IPv4. It is also called a one-to-many address. You can always tell a multicast address in IPv6 because multicast addresses always start with FF.
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Which of the following is true when describing a multicast address?a)P...
Explanation:
Unicast Address:
A unicast address is an address that identifies a single network interface. When a packet is addressed to a unicast address, it is delivered to a single interface identified by that address. This means that the packet is sent to a specific destination, and only that destination receives the packet.
Multicast Address:
A multicast address, on the other hand, is an address that identifies a group of network interfaces. When a packet is addressed to a multicast address, it is delivered to all interfaces that are part of the multicast group. This allows for one-to-many communication, where a single packet can be sent to multiple recipients simultaneously.
One-to-Many Address:
The statement in option B is true. A multicast address is often referred to as a one-to-many address because it allows for the delivery of packets to multiple interfaces identified by the address. This means that a single packet can be sent to multiple recipients at the same time.
One-to-One-of-Many Address:
Option C is incorrect. A multicast address does not identify multiple interfaces and deliver the packet to only one address. Instead, it delivers the packet to all interfaces identified by the multicast address.
Nonrouting Purposes:
Option D is incorrect. Multicast addresses are meant for routing purposes, not nonrouting purposes. They are used for efficient delivery of packets to multiple recipients in a network.
Globally Unique:
Multicast addresses are indeed globally unique, which means that the probability of address overlap is very low. This allows for the proper identification and delivery of multicast packets in a network.
To summarize, a multicast address is an address that allows for one-to-many communication by delivering packets to all interfaces identified by the address. It is used for routing purposes and is globally unique to avoid address overlap.