Quick Answer
The answer is VPC Flow Logs, as this AWS service is specifically designed to capture IP traffic information for network interfaces, enabling detailed analysis of network traffic patterns to identify where packets are being accepted or rejected by security group rules. For an SAP workload experiencing intermittent performance issues after a security group change, VPC Flow Logs provide the granular, per-flow metadata needed to pinpoint dropped traffic and correlate it with specific rule actions, such as REJECT or ACCEPT records. On the AWS Certified SAP on AWS Specialty PAS-C01 exam, this question tests your understanding of network diagnostics in the context of SAP-specific connectivity requirements, often appearing as a scenario where you must differentiate VPC Flow Logs from tools like AWS CloudTrail (which logs API calls, not traffic) or Amazon Inspector (which scans for vulnerabilities). A common trap is confusing flow logs with security group audit logs, but remember: VPC Flow Logs capture actual traffic data, not rule changes. Memory tip: think “Flow for Flows” — VPC Flow Logs track the flow of network traffic, not the configuration of rules.
This PAS-C01 practice question tests your understanding of operations and maintenance. 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.
An SAP workload running on AWS is experiencing intermittent performance issues. The operations team suspects that a recent change to a security group is causing traffic to be dropped. Which AWS service should the team use to analyze network traffic patterns and identify the source of the issue?
Amazon Inspector
Why wrong: Inspector assesses security vulnerabilities, not network flow.
AWS Config
Why wrong: AWS Config tracks resource configuration changes, but does not capture network traffic.
AWS CloudTrail
Why wrong: CloudTrail records API calls, not network traffic.
VPC Flow Logs
VPC Flow Logs capture IP traffic information and can be analyzed to identify dropped packets due to security group rules.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
VPC Flow Logs
VPC Flow Logs capture IP traffic information and can be used to analyze network traffic patterns, helping to diagnose security group rule issues.
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.
Amazon Inspector
Why it's wrong here
Inspector assesses security vulnerabilities, not network flow.
AWS Config
Why it's wrong here
AWS Config tracks resource configuration changes, but does not capture network traffic.
AWS CloudTrail
Why it's wrong here
CloudTrail records API calls, not network traffic.
VPC Flow Logs
Why this is correct
VPC Flow Logs capture IP traffic information and can be analyzed to identify dropped packets due to security group rules.
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 healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
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 PAS-C01 NAT questions on configuration and troubleshooting.
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FAQ
Operations and Maintenance — This question tests Operations and Maintenance — Static NAT maps one inside address to one outside address..
The correct answer is: VPC Flow Logs — VPC Flow Logs capture IP traffic information and can be used to analyze network traffic patterns, helping to diagnose security group rule issues.
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 PAS-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 PAS-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 PAS-C01 exam.
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