Advanced S3 & Athena

Question 1

What is the EC2 URL to get the metadata?

Answer 1

http://169.254.169.254/latest/meta-data

Question 2

How can MFA-Delete be enabled in S3?

Answer 2

You need to be the root user and use the CLI

Question 3

What is the default timeout for S3 pre-signed urls?

Answer 3

3600 seconds (1 hour)

Question 4

How do you change the timeout?

Answer 4

Use the –expires-in argument

Question 5

What are the 6 S3 storage classes?

Answer 5

• S3 Standard - General Purpose
• S3 Standard - Infrequent Access (IA)
• S3 One Zone - Infrequent Access
• S3 Intelligent Tiering
• Amazon Glacier
• Amazon Glacier Deep Archive

Question 6

What are the uses cases for S3 Standard?

Answer 6

Big data, content distribution

Question 7

What are the use cases for S3 Standard Infrequent Access?

Answer 7

Data store for disaster recovery

Question 8

What are the use cases for S3 One Zone - Infrequent Access?

Answer 8

Storing secondary backup or data you can recreate

Question 9

What are the 3 retrieval options for Glacier?

Answer 9

• Expedited (1 - 5 minutes)
• Standard (3 - 5 hours)
• Bulk (5 - 12 hours)

Question 10

What are the 2 retrieval options for Glacier Deep Archive?

Answer 10

• Standard (12 hours)

- Bulk (48 hours)

Question 11

What is the minimum storage duration for Glacier?

Answer 11

90 days

Question 12

What is the minimum storage duration for Glacier Deep Archive?

Answer 12

180 days

Question 13

In Lifecycle rules, what are Transition Actions?

Answer 13

They define when objects get transitioned to another class

Question 14

In Lifecycle Rules, what are Expiration Actions?

Answer 14

They configure objects to delete at certain times

Question 15

Are Lifecycle Rules at the bucket level?

Answer 15

Lifecycle Rules can be applied for a certain prefix or for object tags

Question 16

How do you retrieve deleted objects?

Answer 16

Enable S3 Versioning so that you can retrieve it

Question 17

What is S3 Analytics?

Answer 17

It is a report that runs daily to determine when to transition objects from standard to IA

Question 18

How many PUT/COPY/POST/DELETE requests per second can we get in S3?

Answer 18

3500 per second

Question 19

How many GET/HEAD requests per second can we get in S3?

Answer 19

5500 per second

Question 20

How can we filter data server-side in S3?

Answer 20

Use S3 Select or Glacier Select

Question 21

What is S3 Requester Pays?

Answer 21

It allows you to set the requester of data downloads as the payer. The requester must be authenticated in AWS, cannot be random

Question 22

What is Glacier Vault Lock?

Answer 22

It is when you write once, read many. Good for compliance etc