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AWS SysOps - DB > Storage > Flashcards

Storage Flashcards

1
Q

What does AWS Multi-Attach all you to do?

A

Attach the same EBS volumes to different EC2 instances

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2
Q

How many EC2 instances can connect to an EBS Multi-Attached volume

A

16

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3
Q

What storage type is needed for EBS Multi-attached?

A

Provisioned IOPs

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4
Q

Can you attach to an EBS volume in a different AZ?

A

No

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5
Q

IS EBS termination protection enabled by default?

A

No

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6
Q

Are root EBS volumes deleted on termination?

A

Yes

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7
Q

Can EBS volumes be extended while online?

A

Yes

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8
Q

What type of volume type is the default boot volume on an EC2 instance?

A

General Purpose SSD

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9
Q

What is the max IOS of EBS general purpose SSD?

A

16,000

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10
Q

How many IOPS does EBS provisioned provide per volume?

A

64,000

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11
Q

How many IOPS does EBS “Throughput Optimized” provide per volume?

A

500

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12
Q

Purpose of EBS “Throughput Optimized”?

A

Big data, data wharehouses, log processing

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13
Q

Purpose of EBS general purpose SSD?

A

Transactional workloads

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14
Q

Purpose of EBS provisioned IOPS?

A

NoSQL, relational databases

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15
Q

Purpose of Cold HDD?

A

Archiving

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16
Q

Can you use EBS “Throughput Optimized” or “Cold HDD” as a boot volume?

A

No

17
Q

Where are EBS Snapshots stored?

A

S3

18
Q

Do EBS snapshots keep all previous points in time?

A

Yes

19
Q

If you take a snapshot of an EBS volume will it keep encryption?

A

Yes

20
Q

If you stop a server on an “Insance Store” what will happen?

A

You will lose the data

21
Q

What is a benefit of having an “Instance Store” disk?

A

The performance

22
Q

If you restart a server on an “Insance Store” what will happen?

A

You will keep your data

23
Q

When to use an “Instance Store”?

A

temporary data, distributed data, No cost

24
Q

How can you check if an EBS volume is encrypted?

A

AWS Config

25
Q

Can you share KMS Keys with other accounts once you have created the key?

A

Yes

26
Q

If you want to see available space on an EBS volume, what do you install?

A

CloudWatch Unified Agent

27
Q

Can Windows systems use EFS?

A

No

28
Q

Can you connect to EFS outside of the VPC?

A

Yes

29
Q

Does EFS get backed up?

A

Yes - by default

30
Q

How do EFS Lifecycle policies help?

A

They move older data to “Infrequent storage”

31
Q

What performance modes does EFS support

A

General and Max I/O

32
Q

What EFS throughput mode scales with the system?

A

Bursting

33
Q

What EFS throughput mode is fixed

A

Provisioned

34
Q

Does EFS encrypt data at rest and transit?

A

Yes

AWS SysOps - DB (8 decks)

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