Which two statements describe characteristics of IPv6 unicast addressing? (Choose two.)

Question

Exhibit

Options

• AGlobal addresses start with 2000::/3.
• BLink-local addresses start with FE00::/12.
• CLink-local addresses start with FF00::/10.
• DThere is only one loopback address and it is ::1.
• EIf a global address is assigned to an interface, then that is the only allowable address for the interface.

• A
  87% (20)
• C
  9% (2)
• E
  4% (1)

Explanation

A is correct: IPv6 global unicast addresses - the public routable addresses equivalent to IPv4 public addresses - use the 2000::/3 prefix range, which spans addresses from 2000:: through 3FFF:FFFF:...:FFFF. D is correct: IPv6 has exactly one loopback address, ::1, which is equivalent to 127.0.0.1 in IPv4 and is used for testing the local TCP/IP stack. B is incorrect: Link-local addresses begin with FE80::/10, not FE00::/12. C is incorrect: FF00::/10 is the multicast address range, not link-local. E is incorrect: An IPv6 interface can (and typically does) have multiple addresses simultaneously - for example, a link-local address (FE80::/10) and one or more global unicast addresses.

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