CompTIA Network+ (N10-008) — Question 376

A network architect is developing documentation for an upcoming IPv4/IPv6 dual-stack implementation. The architect wants to shorten the following IPv6 address: ef82:0000:0000:0000:0000:1ab1:1234:1bc2. Which of the following is the MOST appropriate shortened version?

Answer options

• A. ef82:0:1ab1:1234:1bc2
• B. ef82:0::1ab1:1234:1bc2
• C. ef82:0:0:0:0:1ab1:1234:1bc2
• D. ef82::1ab1:1234:1bc2

Correct answer: D

Explanation

The correct answer is D, as it uses the double colon (::) to replace consecutive groups of zeros, which is valid in IPv6 addressing. Options A, B, and C either do not utilize the double colon appropriately or do not represent the address in its shortest possible form.