AWS Glacier

Question 1

For AWS Glacier, is data stored in a single region and now may AZ’s?

Answer 1

It is stored in a region, in 3 or more AZ

Question 2

What is the durability of Glacier?

Answer 2

11 x 9s

Question 3

What is the availability of AWS Glacier?

Answer 3

4 x 9s

Question 4

What is the logical construct used for storing in Glacier?

Answer 4

A vault

Question 5

How much data can I store in a vault?

Answer 5

Unlimited but you are limited to 40TB per archive.

Question 6

What is the minimum amount of data you can store in Glacier?

Answer 6

1 byte

Question 7

How is data packaged to be put in a vault?

Answer 7

Data (your files) are packaged into an archive and uploaded into the vault.

Question 8

When you are uploading an archive, what is the best method to use for large data above 200MB?

Answer 8

Use Multi-part upload.

Question 9

What is Glacier select?

Answer 9

Enables you to run queries on CSV data in place in AWS Glacier.

Question 10

With Glacier Select, how long does it take to retrieve data?

Answer 10

These are different tiers,
- expedaited
- standard
- bulk
All tiers have different access time and cost

Question 11

How long will it take to access data with expeadated for AWS Glacier Select?

Answer 11

It takes 1 - 5 min

Question 12

How long will it take to access data with bulkfor AWS Glacier Select?

Answer 12

3 - 5 hrs

Question 13

What format can be used in AWS Glacier Sleletc?

Answer 13

Data has to be in comma delemetered files, CVS

Question 14

When using Glacier select to query, what is the query language?

Answer 14

SQL subset.

Question 15

Where is the data stored form a Glacier select?

Answer 15

Stored in a S3 bucket

Question 16

With AWS slect, when you query, can you encrypt the output?

Answer 16

Yes 100%

Question 17

I need to ensure that people can only put data in a vault and alos read it but not delete it, how cna I do this?

Answer 17

Use a vault policy, where we can define with a policy who can access, type of access and alos a condation.

Question 18

I need to allow cross account access to a glacier vault, how cna I do this?

Answer 18

Use the vault resource based policy to grant cross account access.

Question 19

What is the difference between a vault lock policy an access control policy?

Answer 19

Bot govern acces, but when the vault access policy is locked it can be chnaged.

Question 20

I need to see what changes have occured with Glacier,, how cna I do this?

Answer 20

Use cloud trail.

Question 21

How much data can I store in a single archive?

Answer 21

40TB

Question 22

How long does it take to retrieve Glacier data compared to S3?

Answer 22

At best Glacier takes 1 - 5 min compared to s3 where data is instantly available.

Question 23

There are three types of policy associated with the glacier, what are they?

Answer 23

• IAM policies for controlling who has access to a resource

- Access Policies

Question 24

What are the retrieval options for glacier and their times?

Answer 24

Expedited 1 - 5 min
Standard 2-5hrs
Bulk 5 - 12hrs

Question 25

Can you add a description to an archive after it is uploaded?

Answer 25

No, only at the time of upload.

Question 26

Are op[eration with Glacier synchronous or async?

Answer 26

Async, you ask for something to be done and you will listen on an SNS topic for a response when completed.

Question 27

How are investors handled by AWS?

Answer 27

AWS creates an inventory of a vault every 24hrs, when you request the inventory you get the last one created. You can ask Glacier to do an ad-hoc inventory when things have changed.

Question 28

Like s3 objects can I store metadata with the archive?

Answer 28

No, unlike s3 objects there is no ability to store metadata with the archive.

Question 29

I have created an archive 6mts ago and now I wnat to add some files to it, how cna I do this?

Answer 29

You can, once created and uploaded it can not be edited.

Question 30

What is an archive?

Answer 30

It is one or more files

Question 31

Can you request files from the archive?

Answer 31

Yes, but you have to know externally what you are looking for, in what archive and the file details, this is not stored in Glacier.

Question 32

I wnat to ensure compliance on vault and ensure they are no longer able to edit them, how can I do this?

Answer 32

You cna use a vault lock.