AWS Glacier Flashcards

1
Q

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

A

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

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2
Q

What is the durability of Glacier?

A

11 x 9s

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3
Q

What is the availability of AWS Glacier?

A

4 x 9s

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4
Q

What is the logical construct used for storing in Glacier?

A

A vault

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5
Q

How much data can I store in a vault?

A

Unlimited but you are limited to 40TB per archive.

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6
Q

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

A

1 byte

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7
Q

How is data packaged to be put in a vault?

A

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

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8
Q

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

A

Use Multi-part upload.

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9
Q

What is Glacier select?

A

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

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10
Q

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

A
These are different tiers,
- expedaited
- standard
- bulk
All tiers have different access time and cost
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11
Q

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

A

It takes 1 - 5 min

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12
Q

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

A

3 - 5 hrs

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13
Q

What format can be used in AWS Glacier Sleletc?

A

Data has to be in comma delemetered files, CVS

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14
Q

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

A

SQL subset.

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15
Q

Where is the data stored form a Glacier select?

A

Stored in a S3 bucket

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16
Q

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

A

Yes 100%

17
Q

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?

A

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

18
Q

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

A

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

19
Q

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

A

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

20
Q

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

A

Use cloud trail.

21
Q

How much data can I store in a single archive?

A

40TB

22
Q

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

A

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

23
Q

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

A
  • IAM policies for controlling who has access to a resource

- Access Policies

24
Q

What are the retrieval options for glacier and their times?

A

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

25
Q

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

A

No, only at the time of upload.

26
Q

Are op[eration with Glacier synchronous or async?

A

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

27
Q

How are investors handled by AWS?

A

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.

28
Q

Like s3 objects can I store metadata with the archive?

A

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

29
Q

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

A

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

30
Q

What is an archive?

A

It is one or more files

31
Q

Can you request files from the archive?

A

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.

32
Q

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

A

You cna use a vault lock.