Interview Q&A / AWS & Cloud
AWS & Cloud interview questions
EC2, S3, Lambda, IAM and VPC basics, with when to pick which service.
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- How do you choose a good partition key in DynamoDB?
Pick an attribute with many distinct values that requests spread across evenly, such as user ID or order ID. A key where most traffic hits a few values creates a hot partition that gets throttled.
IntermediateQuick answer1 min read