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SAA-CO2 - AWS Associate Architect > EBS > Flashcards

EBS Flashcards

1
Q

EBS is an acronym for

A

Elastic Block Storage

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2
Q

How many EC2 instances can a EBS instance be attached to?

A

1

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3
Q

How do you backup EBS?

A

By snapshots

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4
Q

Best EBS HD type for boot volumes?

A

SDD

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5
Q

Best HD for smaller blocks?

A

SSD

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6
Q

Best HD for workloads with a high throughout?

A

HD

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7
Q

Best EBS HD for big data processing?

A

HD

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8
Q

SSD variants available

A 
General purpose SSD (GP2) 
Provisioned IOPS (Io1)
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9
Q

EBS HDD variants

A 
Cold HDD (SC1)
Throughout Optimised (ST1)
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10
Q

Cheapest hard drive available for EBS?

A

Cold HDD (SC1)

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11
Q

How to increase the size of EBS?

A

Increase the size, then increase the file system size manually via command line.

Create a snapshot, then make a new larger EBS from that snapshot

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12
Q

Is EBS Charged via usage or amout provisioned?

A

Amount provisioned

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13
Q

Do region and hard drive effect EBS price?

A

Yes

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14
Q

To automatically attatch specific EBS volumes when an EC2 instance is launched. You must specify this in

A

Block device mapping

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15
Q

You have an EBS backed instance volume that you are turning into an AMI.

When you launch the new AMI. Will the EBS attatched to it contain the data from the original EBS?

A

No

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16
Q

Ephemeral Storage is best for?

A

None persistent data

17
Q

EBS instances, can only be attatched to EC2 instances, running in the same ……..

A

AZ

18
Q

What are EBS magnetic volumes?

A

Previous generation HDDs

19
Q

When you create a snapshot of an EBS volume. Should you copy it to a different region?

A

Yes! Because if the AZ goes down, not only does the production version, but so do snapshots in that region too.

20
Q

How do your create an EBS snapshot in a different region?

A

You create the snapshot, then you copy it to the other region

21
Q

Would provisioned IOPS hard drive provide a cost optimised solution for a web server?

A

No

22
Q

Will snapshots degrade IOPs performance of your EBS instance while in progress?

A

No

23
Q

You want to automate backups of EBS. Name two ways of doing this.

A

Lambda function

A cronjob implemented via cloudwatch

24
Q

If you want to encrypt an EBS instance. You need to do it on…

A

Boot

25
Q

If a volume is encrypted. Are backups encrypted too?

A

Yes

26
Q

Can you attatch multiple EBS to an instance

A

Yes

27
Q

What boots faster. An instance store or EBS?

A

EBS

28
Q

What’s more cost efficient. EBS or an instance store?

A

Instance store

29
Q

You only need to keep one EBS snapshot, because EBS snapshots are both incremental and complete. True or false?

A

True

SAA-CO2 - AWS Associate Architect (47 decks)

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