DBS-C01 Database Security Practice Question
A company needs to rotate the master user password for an Amazon RDS for MySQL DB instance. What is the recommended way to do this without downtime?
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 the AWS Management Console, CLI, or API to modify the DB instance with a new master password.
Using the AWS Management Console, CLI, or API to modify the DB instance with a new master password updates the password without any downtime or reboot. Option A is incorrect because modifying the DB instance and setting a new password does not cause a reboot; password changes take effect immediately. Option B is incorrect because updating the DB parameter group does not change the master password. Option D is incorrect because deleting and relaunching the instance is unnecessary and would cause downtime.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Modify the DB instance and set a new password, which will cause a reboot for the change to take effect.
Why it's wrong here
Modifying the master password does not require a reboot; it takes effect immediately.
- ✗
Update the DB parameter group with the new password.
Why it's wrong here
The master password is not stored in the parameter group.
- ✓
Use the AWS Management Console, CLI, or API to modify the DB instance with a new master password.
Why this is correct
The password change is applied immediately without requiring a reboot.
- ✗
Delete the DB instance and launch a new one with the new password.
Why it's wrong here
This would cause downtime and is unnecessary.
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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.