The correct conclusion is that the translations are static and will remain until manually removed. This is because the verbose output of the `show ip nat translations` command explicitly displays `timeout: never` and `flags: static` for each entry, which indicates these mappings are not dynamic and will not be aged out by any timer. When interpreting static NAT translation output on the ENCOR 350-401 exam, you must recognize that static entries lack an outside local or outside global address (shown as `---`) and are manually configured, unlike dynamic NAT which will show a timeout value and a `dynamic` flag. A common trap is assuming that all NAT entries eventually time out, but the `flags: static` field is your definitive clue. For a quick memory tip, remember: “Static never times out—if you see ‘never’ and ‘static’, it’s permanent until you delete it.”
CCNP NAT and DHCP Practice Question
This 350-401 practice question tests your understanding of nat and dhcp. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. 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 network engineer runs the following command on Router R7:
R7# show ip nat translations verbose
Pro Inside global Inside local Outside local Outside global
--- 192.0.2.10 10.0.0.10 --- ---
create: 03/01/2025 09:00:00, use: 03/01/2025 09:05:00
timeout: never, flags: static
--- 192.0.2.11 10.0.0.11 --- ---
create: 03/01/2025 09:00:00, use: 03/01/2025 09:06:00
timeout: never, flags: static
Based on this output, what can be concluded?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "never"
Why it matters: Absolute qualifier. True only if the statement has zero exceptions — be cautious of options that seem obvious but break down in edge cases.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The translations are static and will remain until manually removed.
The verbose output shows static NAT entries with 'timeout: never' and 'flags: static'. These translations will not time out and are manually configured.
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.
✗
These translations will expire after a configurable timeout.
Why it's wrong here
The timeout is 'never', so they do not expire.
✗
The translations are dynamic and will be removed after idle timeout.
Why it's wrong here
The flags indicate 'static', not dynamic.
✗
The router is performing PAT for these addresses.
Why it's wrong here
No protocol or port is shown; these are simple static NAT entries.
✓
The translations are static and will remain until manually removed.
Why this is correct
Static NAT entries with timeout 'never' persist indefinitely.
Clue confirmation
The clue word "never" in the question point toward this answer.
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.
Trap categories for this question
Command / output trap
No protocol or port is shown; these are simple static NAT entries.
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.
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 350-401 NAT questions on configuration and troubleshooting.
NAT and DHCP — This question tests NAT and DHCP — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: The translations are static and will remain until manually removed. — The verbose output shows static NAT entries with 'timeout: never' and 'flags: static'. These translations will not time out and are manually configured.
What should I do if I get this 350-401 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 350-401 NAT questions on configuration and troubleshooting.
Are there clue words in this question I should notice?
Yes — watch for: "never". Absolute qualifier. True only if the statement has zero exceptions — be cautious of options that seem obvious but break down in edge cases.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A network engineer runs the following command on Router R1:
R1# show ip nat translations
Pro Inside global Inside local Outside local Outside global
--- 192.0.2.10 10.0.0.10 --- ---
--- 192.0.2.11 10.0.0.11 --- ---
Based on this output, what can be concluded?
medium
A.Dynamic NAT is configured with a pool of addresses.
✓ B.Static NAT is configured for two internal hosts.
C.PAT is translating multiple internal addresses to a single global address.
D.NAT is not operational because no outside local addresses are shown.
Why B: The output shows two static NAT translations with no protocol, indicating they are configured as static NAT entries. The inside global addresses are mapped one-to-one to inside local addresses. No dynamic translations are present.
Last reviewed: Jun 18, 2026
Question Discussion
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