Which type of address is represented by the prefix 2001:0db8::/32 in IPv6?

Which type of address is represented by the prefix 2001:0db8::/32 in IPv6?

• A. Link-local address
• B. Global unicast address
• C. Multicast address
• D. Loopback address

Answer: (B)

The prefix 2001:0db8::/32 in IPv6 is categorized as a global unicast address. Global unicast addresses are routable on the public Internet and are intended for uniquely identifying end devices or interfaces. The specific prefix 2001:0db8::/32 is actually reserved for documentation and examples, making it part of the global unicast address space. Such addresses allow for the unique identification of devices across different networks globally, enabling communication over the Internet. In contrast, link-local addresses are used for communication within a single network segment and have a prefix of FE80::/10. Multicast addresses, which are used for sending messages to multiple recipients at once, typically fall within the address range ff00::/8. The loopback address, which is used for testing and refers to the local host, is represented by the address ::1 in IPv6. Hence, the 2001:0db8::/32 prefix distinctly aligns with the characteristics and purpose of a global unicast address.

The prefix 2001:0db8::/32 in IPv6 is categorized as a global unicast address. Global unicast addresses are routable on the public Internet and are intended for uniquely identifying end devices or interfaces.

The specific prefix 2001:0db8::/32 is actually reserved for documentation and examples, making it part of the global unicast address space. Such addresses allow for the unique identification of devices across different networks globally, enabling communication over the Internet.

In contrast, link-local addresses are used for communication within a single network segment and have a prefix of FE80::/10. Multicast addresses, which are used for sending messages to multiple recipients at once, typically fall within the address range ff00::/8. The loopback address, which is used for testing and refers to the local host, is represented by the address ::1 in IPv6. Hence, the 2001:0db8::/32 prefix distinctly aligns with the characteristics and purpose of a global unicast address.