Final answer:
The addresses 224.8.70.14 and 226.17.3.53 are multicast addresses because they fall within the designated multicast range of 224.0.0.0 to 239.255.255.255. The address 240.3.6.25 is not a multicast address as it is outside of this range.
Step-by-step explanation:
To determine which of the provided IP addresses are multicast addresses, it is necessary to refer to the IP multicast address range defined by the Internet Assigned Numbers Authority (IANA). The range allocated for IPv4 multicast addresses is from 224.0.0.0 to 239.255.255.255. This range falls within the Class D IP address space. Here are the evaluations of the given addresses:
- 224.8.70.14: This address is within the multicast range, so it is a multicast address.
- 226.17.3.53: This address also falls within the multicast range and is thus a multicast address.
- 240.3.6.25: This address does not fall within the multicast range as it is beyond 239.255.255.255. Instead, it belongs to the Class E range, which is reserved for future use, research, and experimentation. Therefore, it is not a multicast address.Hence, addresses a and b are multicast addresses while address c is not a multicast address.