What is the usual range of IPv6 addresses?

The correct answer reflects the vastness of the IPv6 addressing space. IPv6 was designed to provide a significantly larger address space than its predecessor, IPv4, to accommodate the growing number of devices connected to the internet.

Each IPv6 address consists of 128 bits, which allows for a theoretical limit of 2^128 unique addresses. When this large number is converted into a more readable format, it amounts to approximately 340282366920938463463374607431768211456 distinct addresses. This huge range is essential to address the limitations of IPv4, which only supports about 4.3 billion addresses (2^32).

In contrast, the other ranges presented are much smaller and do not accurately represent the capacity of IPv6. Therefore, the answer reflecting the range of 0 to 340282366920938463463374607431768211456 appropriately captures the potential of IPv6 addressing.