“How many bits are used in an IPv6 address?”

"An IPv6 address uses 128 bits providing a vast address space to accommodate the growing number of internet-connected devices. Unlike IPv4’s 32-bit structure IPv6’s hexadecimal format supports enhanced scalability and security. Its adoption is critical for modern networking enabling IoT mobile connectivity and global internet expansion. Understanding IPv6’s architecture is essential for network engineers and IT professionals ensuring efficient address allocation and robust internet infrastructure in an increasingly connected world."