Implementing Cisco IP Routing (CCNP ROUTE, legacy) — Question 319

What is a function of NPTv6?

Answer options

• A. It interferes with encryption of the full IP payload.
• B. It maintains a per-node state.
• C. It is checksum-neutral.
• D. It rewrites transport layer headers. C

Correct answer:

Explanation

The correct answer is B, as NPTv6 maintains a per-node state to ensure proper address translation between IPv6 addresses. Option A is incorrect because NPTv6 does not interfere with encryption. Option C is also wrong, as NPTv6 is not specifically defined as checksum-neutral. Lastly, option D is incorrect because NPTv6 does not rewrite transport layer headers.