Implementing Cisco IP Routing (CCNP ROUTE, legacy) — Question 44

What is the difference between the IPv6 addresses ::/0 and ::/128? Choose the best response.

Answer options

• A. ::/0 is the unspecified address, and ::/128 is the multicast address.
• B. ::/0 is the unicast address, and ::/128 is the anycast address.
• C. ::/0 is the unicast address, and ::/128 is the multicast address.
• D. ::/0 is the anycast address, and ::/128 is the multicast address.
• E. ::/0 is the default route, and ::/128 is the unspecified address.
• F. ::/0 is the anycast address, and ::/128 is the default address. E

Correct answer:

Explanation

::/0 serves as the default route in IPv6, directing traffic to all addresses, while ::/128 represents the unspecified address, which is used to indicate the absence of an address. The other options incorrectly categorize these address types, leading to misunderstandings about their specific functions in IPv6 networking.