1C0X2 Apprentice Course Block III Practice Test

Which of the following is a main IPv6 address type?

IPv4 Private Address Loopback Address Broadcast Address Global Unicast

Correct Answer:

Global Unicast

Explanation:

In IPv6, addresses are organized into unicast, multicast, and anycast types. Among the options, the one that fits as a main IPv6 address type is Global Unicast. Global Unicast addresses are the globally routable addresses on the Internet, similar in purpose to public IPv4 addresses, with prefixes like 2000::/3. This makes them the primary category for addresses that can be reached from anywhere on the Internet. The other options don’t fit as a main IPv6 address type: IPv4 Private Address is an IPv4 concept, not IPv6; Loopback Address (::1) is a special single-host unicast address used for testing that isn’t a broad category of address; and Broadcast Address doesn’t exist in IPv6 (IPv6 uses multicast to handle group communications instead of broadcast).

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