This ANS-C01 practice question tests your understanding of network security, compliance and governance. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 company is using AWS WAF to protect a web application. They want to block requests that originate from known malicious IP addresses. Which WAF rule type should be used?
String match condition
Why wrong: String match is for matching specific strings in requests.
Regex match condition
Why wrong: Regex matches patterns in request components, not IP addresses.
SQL injection match condition
Why wrong: SQL injection match condition is for detecting SQL injection attacks.
IP set match condition
IP set match condition allows blocking or allowing requests based on source IP.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
IP set match condition
IP set match conditions are used to match the source IP address of a request against a list of IP addresses. Regex, string match, and SQL injection are for other attack types.
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
For each option: why learners choose it and why it is or isn't the right answer here.
String match condition
Why it's wrong here
String match is for matching specific strings in requests.
Regex match condition
Why it's wrong here
Regex matches patterns in request components, not IP addresses.
SQL injection match condition
Why it's wrong here
SQL injection match condition is for detecting SQL injection attacks.
IP set match condition
Why this is correct
IP set match condition allows blocking or allowing requests based on source IP.
Related concept
Static NAT maps one inside address to one outside address.
Common exam traps
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
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.
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
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
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 ANS-C01 NAT questions on configuration and troubleshooting.
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FAQ
Network Security, Compliance and Governance — This question tests Network Security, Compliance and Governance — Static NAT maps one inside address to one outside address..
The correct answer is: IP set match condition — IP set match conditions are used to match the source IP address of a request against a list of IP addresses. Regex, string match, and SQL injection are for other attack types.
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 ANS-C01 NAT questions on configuration and troubleshooting.
Static NAT maps one inside address to one outside address.
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Last reviewed: Jun 20, 2026
This ANS-C01 practice question is part of Courseiva's free Amazon Web Services 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 ANS-C01 exam.
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