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CLF-C02 Practice Question 43: Managed Database Responsibility

AWS Certified Cloud Practitioner (CLF-C02) · Test 5 · question 3 of 10

Security & Compliancemedium

A company moves a PostgreSQL database from a self-managed Amazon EC2 instance to Amazon RDS for PostgreSQL. Under the shared responsibility model, which tasks become the responsibility of AWS after the move? (Choose TWO.)

Select 2 answers.

Select 2 answers
Show answer and explanation

Answers:

  • A. Patching the operating system of the database host
  • C. Installing patches for the PostgreSQL database software

How the responsibilities split depends on the service. With a database on Amazon EC2, AWS looks after the hardware, but the customer installs and patches the operating system and the database software. Amazon RDS is a managed service: AWS also takes over OS installation and patching, database software installation and patching, backups, high availability and scaling. The customer keeps optimizing the application.

Option B stays with the customer. RDS hosts the database engine, but who can log in to it and what they can do with the data is the customer's decision. Option D is also the customer's job: security groups control which IP ranges or EC2 instances can reach a DB instance, and the customer writes those rules. Option E is named explicitly in the RDS shared responsibility model as the customer's work, because query performance depends on the database design, data and query patterns, which only the customer controls.

References: What is Amazon Relational Database Service (Amazon RDS)?; Shared Responsibility Model

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