DBS-C01 Database Security Practice Question
Which TWO actions should a company take to secure an Amazon RDS for MySQL database that is accessible from the internet? (Choose two.)
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
✓
Use a security group that restricts inbound traffic to only the required IP addresses.
Options A and E are correct. Option A: Using a security group to restrict inbound traffic to only required IP addresses limits exposure to the internet. Option E: Placing the DB instance in a private subnet without a public IP address ensures it is not directly accessible from the internet. Option B is incorrect because disabling encryption at rest reduces security and does not address internet accessibility. Option C is incorrect because using the default VPC with a public subnet and a network ACL that allows all traffic increases exposure. Option D is incorrect because launching the DB instance in a public subnet with a public IP address makes it directly reachable from the internet.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Use a security group that restricts inbound traffic to only the required IP addresses.
Why this is correct
Security groups act as a virtual firewall to control inbound traffic.
- ✗
Disable encryption at rest to reduce latency.
Why it's wrong here
Disabling encryption weakens security.
- ✗
Use the default VPC with a public subnet and a network ACL that allows all traffic.
Why it's wrong here
The default VPC is not designed for internet-facing databases.
- ✗
Launch the DB instance in a public subnet with a public IP address.
Why it's wrong here
This exposes the database to the internet.
- ✓
Place the DB instance in a private subnet without a public IP address.
Why this is correct
This prevents direct internet access to the database.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DBS-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 DBS-C01 exam.