The answer is Amazon Inspector. This service is the correct choice because it is purpose-built to continuously scan EC2 instances for vulnerabilities, combining a managed agent that checks the operating system for known Common Vulnerabilities and Exposures (CVEs) with an analysis of network configurations to detect unintended network exposure, such as overly permissive security group rules. On the AWS Certified SysOps Administrator Associate SOA-C02 exam, this question tests your ability to distinguish between automated vulnerability management tools and other security services like AWS Shield or GuardDuty, which focus on DDoS protection or threat detection rather than software-level scanning. A common trap is confusing Inspector with Amazon GuardDuty, but remember that GuardDuty monitors for malicious activity and anomalies, while Inspector is strictly about scanning for known vulnerabilities and network reachability. For a quick memory tip, think of Inspector as the service that “inspects” your EC2 instances for software flaws and open doors, just like a building inspector checks for structural issues and unlocked windows.
SOA-C02 Monitoring, Logging, and Remediation Practice Question
This SOA-C02 practice question tests your understanding of monitoring, logging, and remediation. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 needs to continuously scan Amazon EC2 instances for software vulnerabilities and unintended network exposure. Which AWS service should be used?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Amazon Inspector
Amazon Inspector is the correct service because it is specifically designed to automatically scan Amazon EC2 instances for software vulnerabilities (CVEs) and unintended network exposure (network reachability). It uses a combination of a managed agent (for OS-level assessment) and network configuration analysis to produce a detailed findings report, directly meeting the requirement for continuous scanning.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
AWS Config
Why it's wrong here
AWS Config evaluates resource configurations against rules but does not perform vulnerability scanning.
✓
Amazon Inspector
Why this is correct
Amazon Inspector is designed specifically to assess vulnerabilities and network exposure on EC2 instances.
Related concept
Read the scenario before looking for a memorised answer.
✗
AWS Trusted Advisor
Why it's wrong here
Trusted Advisor provides high-level best practice recommendations but does not perform deep vulnerability scanning.
✗
Amazon GuardDuty
Why it's wrong here
GuardDuty is a threat detection service that monitors for malicious activity, not for software vulnerabilities.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Amazon Inspector with Amazon GuardDuty, mistakenly thinking GuardDuty performs vulnerability scanning when it actually focuses on threat detection from network and account activity, not on scanning EC2 instances for CVEs or network exposure.
Detailed technical explanation
How to think about this question
Amazon Inspector uses a hybrid approach: an agent-based assessment that checks the OS for known CVEs (Common Vulnerabilities and Exposures) and CIS benchmarks, and an agentless network reachability assessment that analyzes security group rules and network ACLs to identify ports open to the internet. The findings are published to AWS Security Hub and can trigger automated remediation via EventBridge and Lambda. A subtle behavior is that the network reachability assessment does not require an agent and can be run on EC2 instances that are not managed by Systems Manager, but the agent-based assessment requires the SSM Agent and the Inspector agent to be installed.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
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
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Monitoring, Logging, and Remediation — This question tests Monitoring, Logging, and Remediation — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Amazon Inspector — Amazon Inspector is the correct service because it is specifically designed to automatically scan Amazon EC2 instances for software vulnerabilities (CVEs) and unintended network exposure (network reachability). It uses a combination of a managed agent (for OS-level assessment) and network configuration analysis to produce a detailed findings report, directly meeting the requirement for continuous scanning.
What should I do if I get this SOA-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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This SOA-C02 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 SOA-C02 exam.
Question Discussion
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