hardMultiple SelectObjective-mapped
CCNP Practice Question: Which three statements about NAT64 and NPTv6 are…
Which three statements about NAT64 and NPTv6 are true? (Choose three.)
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
NAT64 translates IPv6 packets to IPv4 packets and vice versa, allowing IPv6-only clients to access IPv4 servers.
This question tests understanding of IPv6 transition mechanisms, specifically NAT64 and NPTv6, including their differences and use cases.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
NAT64 translates IPv6 packets to IPv4 packets and vice versa, allowing IPv6-only clients to access IPv4 servers.
Why this is correct
Correct because NAT64 performs protocol translation between IPv6 and IPv4, enabling communication between IPv6-only and IPv4-only hosts.
- ✓
NPTv6 (Network Prefix Translation) translates the IPv6 prefix of a packet while preserving the host portion of the address.
Why this is correct
Correct because NPTv6 is a stateless prefix translation that changes the network prefix but keeps the interface identifier unchanged.
- ✓
NAT64 requires a DNS64 server to synthesize AAAA records from A records for IPv6 clients.
Why this is correct
Correct because DNS64 is typically used with NAT64 to map IPv4 addresses to IPv6 addresses so that IPv6 clients can resolve domain names.
- ✗
NPTv6 provides port address translation similar to PAT in IPv4 NAT.
Why it's wrong here
Incorrect because NPTv6 is stateless and does not perform port translation; it only translates prefixes, not ports.
- ✗
Both NAT64 and NPTv6 require stateful inspection of all traffic flows.
Why it's wrong here
Incorrect because NAT64 is stateful (tracks sessions), but NPTv6 is stateless and does not maintain session state.
About these practice questions
One of 1,175 original 350-401 practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-401 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 350-401 exam.