If you modify a parameter in a custom DB parameter group attached to an RDS instance, when will the change take effect if the parameter requires a reboot?

medium📝 service behavior Q5 of 15

AWS - RDS and Relational Databases

AImmediately after the modify command completes

BAfter the next manual or automatic reboot of the instance

CAfter the next backup window

DAfter the next maintenance window only

Step-by-Step Solution

Solution:

Step 1: Understand parameter changes requiring reboot
Some parameters need a reboot to apply changes; modifying them does not apply changes immediately.
Step 2: Identify when reboot happens
The change takes effect after the instance is rebooted manually or during an automatic reboot.
Final Answer:
After the next manual or automatic reboot of the instance -> Option B
Quick Check:
Reboot required parameters apply after reboot [OK]

Quick Trick: Reboot-required parameters apply only after instance reboot [OK]

Common Mistakes:

Assuming immediate effect after modify command
Confusing backup or maintenance windows with reboot
Thinking changes apply without reboot

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More AWS Quizzes

If you modify a parameter in a custom DB parameter group attached to an RDS instance, when will the change take effect if the parameter requires a reboot?

Step 1: Understand parameter changes requiring reboot

Step 2: Identify when reboot happens

Final Answer:

Quick Check:

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