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Stephane > EC2 Instance Storage > Flashcards

EC2 Instance Storage Flashcards

1
Q

Network drive you can attach to your instances while they run and allows your instances to persist data, even after their termination

A

EBS (Elastic Block Store) Volume

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2
Q

Can EBS volumes be mounted to 2 instances at the same time?

A

No

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3
Q

Are EBS volumes bound to a specific AZ?

A

Yes

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4
Q

Can an EBS volume be detached from an EC2 instance and attached to another one quickly?

A

Yes

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5
Q

To move an EBS volume a _____________ must be taken of it

A

Snapshot

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6
Q

Is it possible to preserve the attached EBS volume once an EC2 instance is deleted?

A

Yes using Delete on Termination attribute

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7
Q

Make a backup of your EBS volume at a point in time which can then be copied across AZ

A

EBS Snapshots

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8
Q

Move a Snapshot to an ”archive tier” that is 75% cheaper and takes 24 to 72 hours for restoring the archive

A

EBS Snapshot Archive

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9
Q

Setup rules to retain deleted snapshots so you can recover them after an accidental deletion

A

Recycle Bin for EBS Snapshots

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10
Q

Purchase the ability to force full initialization of snapshot to have no latency on the first use

A

Fast Snapshot Restore (FSR)

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11
Q

High-performance hardware disk storage for EC2 that’s good for buffer/cache/ scratch data/temporary content

A

EC2 Instance Store

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12
Q

Does EC2 Instance Store lose their storage if they’re stopped

A

Yes

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13
Q

General purpose SSD volume that balances price and performance for
a wide variety of workloads

A

gp2 / gp3 (SSD)

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14
Q

Highest-performance SSD volume for mission-critical low-latency or
high-throughput workloads

A

io1 / io2 (SSD)

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15
Q

Low cost HDD volume designed for frequently accessed, throughput- intensive workloads

A

st1 (HDD)

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16
Q

Lowest cost HDD volume designed for less frequently accessed workloads

A

sc1 (HDD)

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17
Q

Can HDD EBS volumes be used for Boot Drives?

A

No

18
Q

EBS Volume that is:

1 GiB - 16 TiB
Cost effective storage, low-latency
Used for System boot volumes, Virtual desktops, Development and test environments

A

General Purpose SSD

19
Q

EBS Volume type with:

Baseline of 3,000 IOPS and throughput of 125 MiB/s
Can increase IOPS up to 16,000 and throughput up to 1000 MiB/s independently

A

gp3

20
Q

EBS Volume type with:

can burst IOPS to 3,000
Size of the volume and IOPS are linked, max IOPS is 16,000
3 IOPS per GB, means at 5,334 GB we are at the max IOPS

A

gp2

21
Q

EBS Volume that is great for I/O intensive databases workloads, critical business applications with sustained IOPS performance or applications that need more than 16,000 IOPS

A

Provisioned IOPS (PIOPS) SSD

22
Q

EBS Volume type with:

4 GiB - 16 TiB
Max PIOPS: 64,000 for Nitro EC2 instances & 32,000 for other
Can increase PIOPS independently from storage size

A

io1/io2

23
Q

EBS Volume type with:

4 GiB – 64 TiB:
Sub-millisecond latency
Max PIOPS: 256,000 with an IOPS:GiB ratio of 1,000:1

A

io2 Block Express

24
Q

Does Provisioned IOPS (PIOPS) SSD support EBS multi attach?

A

Yes

25
Q

EBS Volume type that cannot be a boot volume
125 GiB to 16 TiB

A

Hard Disk Drives (HDD)

25
Q

EBS Volume that is:

Used for Big Data, Data Warehouses, Log Processing
Capable of max throughput 500 MiB/s – max IOPS 500

A

Throughput Optimized HDD (st1)

26
Q

EBS Volume that is:

For data that is infrequently accessed
Scenarios where lowest cost is important
Max throughput 250 MiB/s – max IOPS 250

A

Cold HDD (sc1)

27
Q

Attach the same EBS volume to multiple EC2 instances (Up to 16 EC2 Instances at a time) in the same AZ

A

EBS Multi-Attach

28
Q

Used to achieve higher application availability in clustered Linux applications or applications that must manage concurrent write operations

A

EBS Multi-Attach

29
Q

Managed NFS (network file system) that can be mounted on many EC2 instances used for content management, web serving, data sharing, WordPress

A

Amazon EFS

30
Q

Is EFS Compatible with Windows-based AMI

A

No, Only Linux

31
Q

EFS encryption at rest of uses

A

KMS

32
Q

Used to control access to EFS

A

Security Group

33
Q

EFS performance mode used for latency-sensitive use cases

A

General Purpose

34
Q

EFS performance mode with higher latency, throughput, highly parallel (big data, media processing)

A

Max I/O

35
Q

EFS throughput mode where you set your throughput regardless of storage size

A

Provisioned

36
Q

EFS throughput mode that automatically scales throughput up or down based on your workloads

A

Elastic

37
Q

Automate the creation, retention, and deletion of snapshots taken to back up your Amazon EBS volumes

A

Amazon Data Lifecycle Manager (Amazon DLM)

38
Q

EBS encryption enables data at rest security by encrypting your data using

A

AWS Key Management Service (KMS)

39
Q

Ensuring that all new EBS volumes restored from the unencrypted snapshots are automatically encrypted

A

Enable the EBS Encryption By Default feature for the AWS Region

40
Q

By default, the Root volume type will be deleted as its “Delete On Termination” attribute is checked by default. Will any other EBS volumes be deleted?

A

No

Stephane (20 decks)

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