- A
Applying minor version patches to the MySQL database engine
Why wrong: This is incorrect. AWS handles patching of the database engine for Amazon RDS. The customer does not need to apply minor version patches; AWS performs this maintenance automatically or during a defined maintenance window.
- B
Managing the physical security of the data center where the RDS instance is hosted
Why wrong: This is incorrect. Physical security of AWS data centers is the responsibility of AWS. Customers never have access to the physical servers or facilities.
- C
Configuring security group rules to control network access to the database
This is correct. Security groups act as virtual firewalls for RDS instances. Configuring inbound and outbound rules to allow only necessary traffic is a customer responsibility under the Shared Responsibility Model.
- D
Replacing failed hardware components in the RDS host server
Why wrong: This is incorrect. AWS is responsible for the underlying hardware. If a host server fails, AWS automatically replaces the hardware and migrates the RDS instance to healthy hardware without customer intervention.
Quick Answer
Configuring security group rules to control network access to the database is the correct choice because, under the AWS Shared Responsibility Model, the customer is responsible for managing network traffic controls within the VPC, while AWS secures the underlying infrastructure. Security groups act as a virtual firewall at the instance level, and you must define the inbound and outbound rules—such as allowing only specific source IPs and port 3306 for MySQL—to restrict access appropriately. On the AWS Certified Cloud Practitioner CLF-C02 exam, this question tests your understanding of the boundary between AWS-managed security (e.g., physical hosts, hypervisor) and customer-managed security (e.g., network ACLs, security groups). A common trap is assuming AWS handles all firewall configurations, but remember: AWS secures the cloud; you secure what you put in it. Memory tip: think "SG = Your Gate" — security groups are your gate to control who enters the database.
CLF-C02 Security and Compliance Practice Question
This CLF-C02 practice question tests your understanding of security and compliance. 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 migrating an on-premises MySQL database to Amazon RDS for MySQL. The security team needs to understand their responsibilities under the AWS Shared Responsibility Model. Which of the following tasks is the customer's responsibility?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Configuring security group rules to control network access to the database
Under the AWS Shared Responsibility Model, the customer is responsible for configuring security group rules to control network access to the database. Security groups act as a virtual firewall that controls inbound and outbound traffic at the instance level, and the customer must define the rules (e.g., source IP, port 3306 for MySQL) to restrict access appropriately.
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.
- ✗
Applying minor version patches to the MySQL database engine
Why it's wrong here
This is incorrect. AWS handles patching of the database engine for Amazon RDS. The customer does not need to apply minor version patches; AWS performs this maintenance automatically or during a defined maintenance window.
- ✗
Managing the physical security of the data center where the RDS instance is hosted
Why it's wrong here
This is incorrect. Physical security of AWS data centers is the responsibility of AWS. Customers never have access to the physical servers or facilities.
- ✓
Configuring security group rules to control network access to the database
Why this is correct
This is correct. Security groups act as virtual firewalls for RDS instances. Configuring inbound and outbound rules to allow only necessary traffic is a customer responsibility under the Shared Responsibility Model.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Replacing failed hardware components in the RDS host server
Why it's wrong here
This is incorrect. AWS is responsible for the underlying hardware. If a host server fails, AWS automatically replaces the hardware and migrates the RDS instance to healthy hardware without customer intervention.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is confusing 'patching the database engine' (which is AWS's responsibility for RDS) with 'configuring network access controls' (which is the customer's responsibility), leading candidates to incorrectly select Option A.
Detailed technical explanation
How to think about this question
Security groups are stateful and evaluate all rules before allowing traffic; for MySQL, you must allow TCP port 3306 from trusted sources. A common real-world scenario is inadvertently leaving a security group open to 0.0.0.0/0, which exposes the database to the internet — the customer must explicitly restrict inbound rules to specific IP ranges or VPC CIDRs to prevent unauthorized access.
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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
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.
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Security and Compliance — study guide chapter
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FAQ
Questions learners often ask
What does this CLF-C02 question test?
Security and Compliance — This question tests Security and Compliance — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Configuring security group rules to control network access to the database — Under the AWS Shared Responsibility Model, the customer is responsible for configuring security group rules to control network access to the database. Security groups act as a virtual firewall that controls inbound and outbound traffic at the instance level, and the customer must define the rules (e.g., source IP, port 3306 for MySQL) to restrict access appropriately.
What should I do if I get this CLF-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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Last reviewed: Jun 11, 2026
This CLF-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 CLF-C02 exam.
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