What is the difference between “IPv4” and “IPv6”?
a) IPv6 uses a larger address space than IPv4
b) IPv4 is faster than IPv6
c) IPv6 is used only in private networks
d) IPv4 is for wireless networks, and IPv6 is for wired networks
Answer:
a) IPv6 uses a larger address space than IPv4
Explanation:
The primary difference between IPv4 (Internet Protocol version 4) and IPv6 (Internet Protocol version 6) is the size of the address space. IPv4 uses 32-bit addresses, which allows for approximately 4.3 billion unique addresses, while IPv6 uses 128-bit addresses, providing a much larger pool of unique addresses.
IPv6 was introduced to accommodate the growing number of devices connected to the internet, as IPv4 addresses were becoming exhausted. IPv6 also includes improvements in security and routing efficiency compared to IPv4.
Although IPv6 adoption is increasing, many networks still use IPv4 due to compatibility issues, and the two protocols are often used together in a dual-stack configuration.