What is the range of Class A network addresses in the first octet?

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Multiple Choice

What is the range of Class A network addresses in the first octet?

Explanation:
Classful IPv4 addressing uses the first octet to identify the network class. For Class A, the first bit is 0, which places its possible values in the range 0 to 127 in the first octet. However, two values within this range are reserved: 0.x.x.x is used for a network with an unspecified address, and 127.x.x.x is reserved for loopback/testing. Because of these reservations, the usable Class A network numbers fall from 1 to 126 in the first octet.

Classful IPv4 addressing uses the first octet to identify the network class. For Class A, the first bit is 0, which places its possible values in the range 0 to 127 in the first octet. However, two values within this range are reserved: 0.x.x.x is used for a network with an unspecified address, and 127.x.x.x is reserved for loopback/testing. Because of these reservations, the usable Class A network numbers fall from 1 to 126 in the first octet.

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