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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- What are the S3 Glacier storage classes and how do their retrieval times differ?
Glacier Instant Retrieval returns data in milliseconds. Glacier Flexible Retrieval takes minutes to hours depending on the option. Glacier Deep Archive is the cheapest and takes hours, typically around 12 hours or more.
IntermediateQuick answer1 min read