- A
MAP-T is primarily used for IPv6-to-IPv4 communication only
Why wrong: MAP-T supports both IPv6-to-IPv4 and IPv4-to-IPv6 communication.
- B
MAP-T requires a dedicated IPv6 prefix for each customer
Why wrong: MAP-T uses shared IPv4 addresses with port ranges; it does not require a dedicated IPv6 prefix per customer.
- C
MAP-T employs a Border Router that performs translation between IPv4 and IPv6
Correct. The BR performs IPv4-IPv6 translation.
- D
MAP-T uses encapsulation to transport IPv4 packets over an IPv6 network
Why wrong: MAP-T uses translation (NAT), not encapsulation. Encapsulation is used in MAP-E.
- E
MAP-T can operate in stateless mode
Correct. MAP-T supports stateless translation, where the BR uses a deterministic mapping.
Question 813 of 1,000
350-501 Networking Practice Question
This 350-501 practice question tests your understanding of networking. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A service provider is implementing MAP-T (Mapping of Address and Port using Translation) to transition customers from IPv4 to IPv6. Which two characteristics of MAP-T are true? (Choose two.)
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
✓
MAP-T employs a Border Router that performs translation between IPv4 and IPv6
MAP-T uses stateful or stateless translation between IPv4 and IPv6, and it uses a Border Router (BR) that performs translation. MAP-T does not use encapsulation; it uses translation (NAT). MAP-T also uses a Domain Name System (DNS) but that is not unique. The key characteristics: it uses a BR for translation and can be stateless.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
MAP-T is primarily used for IPv6-to-IPv4 communication only
Why it's wrong here
MAP-T supports both IPv6-to-IPv4 and IPv4-to-IPv6 communication.
- ✗
MAP-T requires a dedicated IPv6 prefix for each customer
Why it's wrong here
MAP-T uses shared IPv4 addresses with port ranges; it does not require a dedicated IPv6 prefix per customer.
- ✓
MAP-T employs a Border Router that performs translation between IPv4 and IPv6
Why this is correct
Correct. The BR performs IPv4-IPv6 translation.
Related concept
Static NAT maps one inside address to one outside address.
- ✗
MAP-T uses encapsulation to transport IPv4 packets over an IPv6 network
Why it's wrong here
MAP-T uses translation (NAT), not encapsulation. Encapsulation is used in MAP-E.
- ✓
MAP-T can operate in stateless mode
Why this is correct
Correct. MAP-T supports stateless translation, where the BR uses a deterministic mapping.
Related concept
Static NAT maps one inside address to one outside address.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
Visual reference
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related 350-501 NAT questions on configuration and troubleshooting.
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FAQ
Questions learners often ask
What does this 350-501 question test?
Networking — This question tests Networking — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: MAP-T employs a Border Router that performs translation between IPv4 and IPv6 — MAP-T uses stateful or stateless translation between IPv4 and IPv6, and it uses a Border Router (BR) that performs translation. MAP-T does not use encapsulation; it uses translation (NAT). MAP-T also uses a Domain Name System (DNS) but that is not unique. The key characteristics: it uses a BR for translation and can be stateless.
What should I do if I get this 350-501 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related 350-501 NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Last reviewed: Jul 4, 2026
This 350-501 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 350-501 exam.
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