S3

Question 1

Storage which allow concurrent access to the files from many instances (2)

Answer 1

S3, EFS

Question 2

What rule needs to be respected when using S3 + route 53 alias record ?

Answer 2

bucket using the same name as the domain name

Question 3

Storage : Immediate Retrieval + Cost optimized

Answer 3

S3

Question 4

What is Transfer acceleration ?

Answer 4

speeding up uploads of data to S3 by using the CloudFront network. It is not used for downloading data

Question 5

how to use https with S3 static website ?

Answer 5

To use HTTPS, use CloudFront to serve a static website hosted on S3

Question 6

How to control access to the S3 buckets ? (3)

Answer 6

Bucket policies or
IAM user policies or
ACLs (to grant basic read and write permissions to other AWS accounts)

Question 7

Is it possible to upload data directly to Glacier using aws Console ?

Answer 7

no

Question 8

What is the MOST operationally efficient : “Create a bucket policy” or “to use an IAM policy” ?

Answer 8

IAM policy

Question 9

What are the different retrieval option for glacier and what are the time associated ?

Answer 9

Expedited retrieval : 1 - 5 mins
Standard retrieval : 3 - 5 hours
Bulk retrieval : 5 - 12 hours (low-cost)

Question 10

What is the minimum storage duration before you can transition objects from S3 Standard to S3 Standard IA or One Zone-IA ?

Answer 10

30 days

Question 11

How to protect S3 object from deletion ? (2)

Answer 11

MFA + versioning

Question 12

S3 can publish event to ? (3)

Answer 12

Lambda, sns, sqs

Question 13

How to restrict access for each indivual user to a designated user folder in a S3 bucket ? (3)

Answer 13

1. Federation proxy or an identity provider
2. STS (token)
3. Iam role & iam policy