A network is setup using an IP address range of 0.0.0.0 to 127.255.255.255. The network has a default subnet mask of 255.0.0.0. What IP address class is the network range a part of?
The IP address range from 0.0.0.0 to 127.255.255.255 falls under Class A. In the Class A type of network, the first octet (the first 8 bits of the IP address) is used for the network part, and the remaining 24 bits are used for host addresses. The default subnet mask for Class A is 255.0.0.0, which aligns with the given network’s default subnet mask. Class A networks are designed to support a very large number of hosts. The first bit of a Class A address is always set to 0, which means the first octet can range from 1 to 127, thus including the given IP address range.
References: This explanation is based on standard networking principles regarding IP address classes as outlined in resources like the Meridian Outpost article on IPv4 address classes1, and is consistent with the objectives and documents of the EC-Council’s Certified Network Defender (CND) program.
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