AWS - S3 - multichoice questions

Question 1

Your app is running in an EC2 instance, and needs to read and write data to S3. Which of the below methods is the most recommended to use?

• Store the credentials in KMS, read them when an instance launches.
• Use the IAM role for the EC2 with appropriate permissions in S3.
• Execute aws configure form within the instance and provide Access Key id and Access Secret Key.
• Define the credentials in the instance's user data.

Question 2

Which of the below features of S3 can protect from accidental data deletion or overridden?

• Deny object deletion using an IAM bucket policy.
• Check data integrity before every upload operation.
• Access objects using pre-signed URLs.
• Enable bucket versioning.
• Enable cross-region replication.

Question 3

Review S3 performance summary.

You consider using S3 bucket to store thousands of millions of text objects for a new service in your company.

Which of the below information should be taken into account before choosing S3 as your solution?

• The size of individual object being written to S3
• The total number of requests per second at peak usage
• The number of customers that will use the service
• The total amount of storage needs for each S3 bucket

Question 4

How can you ensure that the data has been saved properly in S3?

• The bucket is strongly consistent so there is no need to check data integrity.
• Check in the bucket logs.
• If the request status code is 200, the object has been stored successfully.
• Using Content-MD5, eTag or checksums.

Question 5

S3 service is:

• SaaS
• PaaS
• IaaS
• IaaC

Question 6

There can be 2 objects in AWS with the same Etag.

• True
• False
• Only objects in different accounts
• Only objects in different bucket
• None of the above

Question 7

In which storage class would you prefer to store your data based on the given scenario?

Monthly data stored size: 100 GB
Average monthly GET requests: 10,000
Average monthly PUT requests: 1,000

• Standard Storage Class
• Infrequent Access Storage Class
• Glacier Storage Class
• Deep Archive Storage Class