The correct answer is that the user will be denied because the condition fails. This happens because AWS IAM policy evaluation uses an implicit deny as the default result when a request does not match an Allow condition. In this case, the Allow effect is explicitly tied to the condition that the request must originate from the 10.0.0.0/8 IP range; when the user attempts to terminate an instance from an IP outside that range, the condition does not match, so the Allow is never applied, and the request falls through to an implicit deny. On the CompTIA Cloud+ CV0-004 exam, this scenario tests your understanding of how IAM policy condition evaluation works, particularly the concept that a failed condition on an Allow statement does not trigger an explicit Deny but simply results in no permission being granted. A common trap is confusing a failed condition with an explicit Deny effect—remember that AWS never changes the effect; it only skips the Allow. Memory tip: “No match, no pass—implicit deny is your default class.”
CV0-004 Operations and Support Practice Question
This CV0-004 practice question tests your understanding of operations and support. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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. An administrator created this policy and attached it to a user. When the user attempts to terminate an instance from an IP address outside the 10.0.0.0/8 range, what will happen?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The user will be denied because the condition fails.
Option B is correct because the condition restricts the Allow to requests from the specified IP range. Requests from outside that range do not match the condition, so the Allow is not applied, resulting in an implicit Deny. Option A is incorrect because the condition fails. Option C is incorrect because the action is allowed under the correct condition. Option D is incorrect because the effect is not changed to Deny; it is simply not allowed.
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 user will be denied because the action is not allowed.
Why it's wrong here
The action is allowed, but only under the condition.
✗
The effect will be evaluated as Deny.
Why it's wrong here
The condition does not change the Effect to Deny; it simply prevents the Allow from applying.
✓
The user will be denied because the condition fails.
Why this is correct
Without a matching Allow, the default Deny takes effect.
Related concept
Static NAT maps one inside address to one outside address.
✗
The user will be allowed to terminate instances.
Why it's wrong here
The condition fails for IPs outside 10.0.0.0/8, so the Allow does not apply.
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 CV0-004 NAT questions on configuration and troubleshooting.
Operations and Support — This question tests Operations and Support — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: The user will be denied because the condition fails. — Option B is correct because the condition restricts the Allow to requests from the specified IP range. Requests from outside that range do not match the condition, so the Allow is not applied, resulting in an implicit Deny. Option A is incorrect because the condition fails. Option C is incorrect because the action is allowed under the correct condition. Option D is incorrect because the effect is not changed to Deny; it is simply not allowed.
What should I do if I get this CV0-004 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 CV0-004 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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