S3

Question 1

What’s the max object size possible in S3?

Answer 1

5TB

Question 2

T/F: A bucket name must be globally unique

Answer 2

True, all AWS accounts share a global namespace

Question 3

What is the availability of S3?

Answer 3

99.95%-99.99%, depending on the tier

Question 4

What is the durability of S3?

Answer 4

11-9’s durability

Question 5

How do you make a bucket public?

Answer 5

Create a bucket policy that allows everyone to do something

Question 6

T/F: you can host dynamic websites using S3

Answer 6

False, you can only host static websites (ones that aren’t connected to a DB)

Question 7

How do you scale your static website with S3?

Answer 7

You don’t have to do anything, S3 will do it automatically

Question 8

What are the advantages of versioning?

Answer 8

1. All versions of an object are stored in S3, even if you delete an object
2. It’s a great backup tool
3. Cannot be disabled once enabled, only suspended
4. Can be integrated with lifecycle rules
5. Supports MFA

Question 9

How do you restore a deleted S3 object that has versioning enabled?

Answer 9

View the versions, and delete the delete marker which was created when the object was first deleted

Question 10

When would you opt to use S3 Standard?

Answer 10

1. High availability and durability
2. Frequently accessed data
3. Static websites, content distribution, mobile/gaming apps, big data analytics

Question 11

When would you opt to use S3 Standard-IA?

Answer 11

1. High availability/durability
2. When you have data you access infrequently, but need rapid access
3. When you want cheaper storage at the expense of a retrieval fee
4. Perfect for long-term storage, backups, disaster-recovery

Question 12

What are the pros and cons of S3 One Zone-IA compared to S3 Standard-IA?

Answer 12

1. Costs 20% less
2. Better suited/cheaper for infrequently-accessed, non-critical data (because it is only stored in one AZ)

Question 13

Which S3 solution would you use when you