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Maintenance and Upgrades

5 minutes 5 Questions

Regular maintenance and upgrades of ElastiCache clusters are necessary to ensure optimal performance, security, and reliability. ElastiCache performs maintenance tasks such as patching the operating system, updating the engine version, or applying security updates. You can self-manage maintenance eā€¦

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AWS Certified Solutions Architect - Maintenance and Upgrades Example Questions

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Question 1

An organization is planning to perform maintenance and upgrades on their AWS resources. Which AWS feature can help them schedule maintenance windows for these tasks?

Correct Answer: AWS Systems Manager Maintenance Windows

AWS Systems Manager Maintenance Windows allow you to define a recurring time window during which you can perform potentially disruptive actions on your instances. Other services listed are not focused on scheduling maintenance tasks.

Question 2

A company needs to periodically perform database maintenance on their Amazon RDS instance while minimizing the impact on their application. Which solution should they choose?

Correct Answer: Set up a maintenance window during the lowest traffic periods

Setting up a maintenance window during the lowest traffic periods helps minimize the impact on their application. The other options either do not directly address the maintenance requirement or may introduce other issues.

Question 3

Your production application runs in an Auto Scaling group of EC2 instances behind an Application Load Balancer. You must deploy periodic application updates with zero downtime, use an automated and scalable process, and be able to instantly roll back if issues are detected. Which approach should you use?

Correct Answer: Use a blue/green deployment strategy

A blue/green deployment provisions a separate, fully functional environment (green) with the new version while the current environment (blue) continues serving traffic. After validation and testing on the green environment, you switch the load balancer to route traffic to green. This achieves zero downtime, allows rapid rollback by switching back to blue if needed, and supports automation and scalability. Terminating all instances causes downtime. Manually updating instances one by one is error-prone, slower, hard to automate at scale, and rollbacks are not instant. CloudWatch alarms are monitoring/trigger mechanisms, not a deployment strategy, and do not guarantee zero-downtime coordinated updates.

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