I'm starting a cloud operations co-op in about two months, but I haven't used AWS for a year. The role involves application and database monitoring, automation, infrastructure health, infrastructure as code, and security and compliance.
Would a hands-on course or an enterprise-style sandbox be the best way to refresh? There are a lot of options, so I'd appreciate a starting point.
I'd spend the first week or two rebuilding a small environment rather than trying to find the perfect course. Set up a VPC and an EC2 instance, work through IAM permissions, add some CloudWatch monitoring, and use Terraform for at least part of the setup.
Then use AWS Skill Builder labs to fill in the gaps you noticed. That gives you a practical refresher without needing to recreate an entire enterprise environment.
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z419~fold_7:
Keep an eye on costs while experimenting and clean up the resources when you're done with them.