PAS-C01 Technology Practice Question
A company runs SAP ERP on AWS using a single EC2 instance for the database and application. The system has been in production for two years. The SAP administrator receives a notification that the EC2 instance's underlying hardware is scheduled for retirement in two weeks. The administrator needs to minimize downtime and ensure the SAP system is available during the maintenance. Which action should the administrator take?
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
✓
Stop the instance and then start it again to migrate to new hardware.
Stopping and starting the instance migrates it to new hardware with minimal downtime (the stop/start cycle takes a few minutes). Option A is wrong because rebooting does not change the underlying hardware; the instance stays on the same degraded hardware. Option B is wrong because scheduled hardware retirement events cannot be extended by requesting a delay from AWS Support. Option C is wrong because creating an AMI and launching a new instance takes longer, may cause IP/hostname changes, and requires additional configuration, making it more disruptive than stop/start.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Reboot the instance to move it to healthy hardware.
Why it's wrong here
Rebooting does not change the underlying hardware; the instance stays on the same degraded hardware.
- ✗
Request an extension of the retirement date from AWS Support.
Why it's wrong here
Scheduled hardware retirement events cannot be extended; requesting a delay is not a standard procedure.
- ✗
Create an AMI of the instance and launch a new instance from the AMI.
Why it's wrong here
Creating an AMI and launching a new instance would take longer and may cause IP/hostname changes; it is more disruptive than stop/start.
- ✓
Stop the instance and then start it again to migrate to new hardware.
Why this is correct
Stopping and starting the instance migrates it to healthy hardware with minimal downtime (the stop/start cycle takes a few minutes).
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Written by Johnson Ajibi, MSc IT Security
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