This 350-701 practice question tests your understanding of network security. 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.
Refer to the exhibit. A host with IP address 10.0.0.5 sends traffic to destination 192.168.2.10. The traffic is not being translated. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The ACL INSIDE_NAT does not permit traffic to the destination network 192.168.2.0/24.
The access-list INSIDE_NAT permits traffic to network 192.168.3.0/24, but the destination is 192.168.2.10, which is not matched. Therefore, NAT is not applied to that traffic. Option A is correct. Options B, C, and D are not relevant because dynamic NAT is allowed, outside interface has an IP, and security-level does not affect NAT.
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.
✗
The security-level of the inside interface is too high to allow NAT.
The ACL INSIDE_NAT does not permit traffic to the destination network 192.168.2.0/24.
Why this is correct
The ACL only permits traffic to 192.168.3.0/24, so 192.168.2.0/24 traffic is not matched and hence not translated.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
✗
The interface outside does not have a valid IP address assigned.
Why it's wrong here
The outside interface has IP 192.168.1.1, which is valid.
✗
The NAT statement uses source dynamic instead of source static; dynamic cannot translate internal IPs.
Why it's wrong here
Dynamic NAT is commonly used for internal-to-external translation; static is not required.
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.
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 350-701 NAT questions on configuration and troubleshooting.
Network Security — This question tests Network Security — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: The ACL INSIDE_NAT does not permit traffic to the destination network 192.168.2.0/24. — The access-list INSIDE_NAT permits traffic to network 192.168.3.0/24, but the destination is 192.168.2.10, which is not matched. Therefore, NAT is not applied to that traffic. Option A is correct. Options B, C, and D are not relevant because dynamic NAT is allowed, outside interface has an IP, and security-level does not affect NAT.
What should I do if I get this 350-701 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 350-701 NAT questions on configuration and troubleshooting.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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