How many bits are utilized to represent an IPv6 address?

An IPv6 address is represented using a total of 128 bits. This extensive bit length allows for a vastly larger number of unique addresses compared to its predecessor, IPv4, which uses only 32 bits. The design of IPv6 accommodates the growing need for IP addresses due to the increasing number of devices connected to the internet.

Each IPv6 address is typically expressed in hexadecimal notation and divided into eight groups of four hexadecimal digits, which collectively sum up to the 128 bits. This flexibility not only addresses the limitations of IPv4 in terms of address space but also supports modern networking needs, such as enhanced routing efficiency and simplified network configuration.

The other options reflect significantly smaller bit representations, which would be insufficient for creating the large number of unique addresses required in today's digital landscape.