AWS Interview Questions and Answers in 2020

AWS Interview Questions and Answers in 2020



Some very good AWS interview questions that were asked in 2020. These questions are based on the compilation of my friend.

*Indra’s link removed*

Questions:
00:00 Intro
00:55 Can you explain about any 5 aws s3 cli commands?
01:51 How do you protect data at rest in S3 ?
02:51 Explain when do you use ELB vs ALB vs NLB
04:06 EBS vs EFS vs S3
05:57 Types of EC2 instances? *
07:52 When do you use nested Cloudformation templates and is there any specific policy that you set?
08:33 Explain about any 5 Cloudformation functions ?
09:09 Explain how DDoS attacks can be prevented using AWS
09:53 How do you monitor Applications HTTP errors responses running on aws? (explain if application runs on ec2 vs LB)
11:11 Aurora vs RDS
11:50 |C:ResolveColorBlue |M:
13:21 Explain in which scenario do you use SQS?
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34 thoughts on “AWS Interview Questions and Answers in 2020

  1. Many Times we think we know a lot but when its comes to the perticular question we find ourselves stuck :), Thanks for sharing your experience it was really helpful

  2. Thanks. You have given and good idea and so I shall learn 5-7 CLI commands of all the services that I use.

  3. aurora is cheaper to use than MySQL , MariaDB, or Postgres
    the difference is you get to use the more native engines vs Aurora

  4. I have been shortlisted for AWS DCO role (Data center outsourcing) interview in upcoming few days.

    1)How should I prepare for that specific role?
    2)Are these questions relevant?
    3)What are their further rounds?
    4)I just have an account on aws should I learn to use it?

  5. SQS Queue is used to Decouple application reduce interdependencies between application, hence asynchronous.

  6. SQS should be used when communicating with different services like AWS Lambda etc. so that if it fails you still have data in the SQS.

  7. The largest single file that can be uploaded into an Amazon S3 Bucket in a single PUT operation is 5 GB. If you want to upload large objects (> 5 GB), you will consider using multipart upload API, which allows to upload objects from 5 MB up to 5 TB

    for multipart upload refer : https://docs.aws.amazon.com/AmazonS3/latest/dev/qfacts.html

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