CCNA: Cisco Certified Network Associate — Question 372

A network administrator is setting up a new IPv6 network using the 64-bit address 2001:0EB8:00C1:2200:0001:0000:0000:0331/64. To simplify the configuration, the administrator has decided to compress the address. Which IP address must the administrator configure?

Answer options

• A. ipv6 address 2001:EB8:C1:22:1::331/64
• B. ipv6 address 21:EB8:C1:2200:1::331/64
• C. ipv6 address 2001:EB8:C1:2200:1:0000:331/64
• D. ipv6 address 2001:EB8:C1:2200:1::331/64

Correct answer: D

Explanation

The correct answer is D because it correctly compresses the original IPv6 address by removing leading zeros and using double colons to represent the contiguous zero segments. Option A is incorrect because it has an invalid segment. Option B is incorrect as it improperly shortens the address. Option C, while partially correct, does not utilize the double colon notation for the zero segments.