Designing Cisco Enterprise Networks (ENSLD) — Question 119

A company plans to transition to IPv6. They will link their IPv4 addresses to the lowest significant bits of the new Ipv6 addresses. A network administrator with an employee id: 4264:42:116 is preparing a mapping schema for the new IPv6 addresses. Which address does the 172.16.10.0/24 network translate to?

Answer options

• A. 2001:db8:abcd::ac10:a00/120
• B. 2001:db8:abcd:172:16:10::/96
• C. 2001:db8:abcd:11d8:a00/120
• D. 2001:db8:ac10:0a00::/64

Correct answer: A

Explanation

The correct answer is A, as it correctly maps the IPv4 address 172.16.10.0 to the corresponding IPv6 format by placing the last octets into the lowest significant bits of the IPv6 address. Option B incorrectly expands the IPv4 address into a full 128-bit address, while C and D do not accurately represent the correct mapping for the given network.