EC2 Storage (EBS/Instance Store) Flashcards

1
Q

Storage which is physically connected directly to a device at launch time only

A

Direct (local) attached storage (Instance Store)

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2
Q

Volumes are created and logically attached to a device over a network

A

Network Attached Storage (EBS)

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3
Q

Temporary storage is called

A

Ephemeral Storage

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4
Q

Permanent storage that lives past the lifetime of the instance

A

Persistent Storage

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5
Q

is EBS persistent storage

A

Yes

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6
Q

Storage volume presented to the OS as a collection of mountable and bootable blocks.

A

Block Storage

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7
Q

Can you boot off an EBS volume?

A

Yes

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8
Q

Storage is presented as a mountable file share, but is not bootable

A

File Storage

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9
Q

Storage of a collection of objects without the ability to be mountable, or bootable

A

Object Storage

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10
Q

persistent block-level storage service that you usually attach to your Amazon EC2 instances

A

Elastic Block Storage EBS

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11
Q

Can block storage be encrypted?

A

Yes by using KMS

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12
Q

Instances see block device and create file systems on the device

A

True

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13
Q

How many AZ is storage provisioned in?

A

One

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14
Q

How to backup Volumes?

A

Snapshots and create a volume from the snapshot

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15
Q

Does EBS replicate data across AZ?

A

No only within an AZ

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16
Q

How do you provide global resilience for EBS

A

Copy snapshots of volumes to another region

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17
Q

1 GB – 16 TB General Purpose SSD volume that balances price performance for a wide variety of transactional workloads

A

General Purpose SSD (gp2/gp3)

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18
Q

What can a gp2 burst up to?

A

3000 iops

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19
Q

Volumes larger than 1000 GB means the credit system isnt used and you always achieve baseline performance

A

True

20
Q

Maxmium IO credits per second for volumes larger than 1000 gb

A

16000

21
Q

storage used for boot volumes, low latency interactive apps, dev & test

A

gp2/gp3

22
Q

storage volume that starts with 3000 IOPS and 125 MiB/s with the ability to purchase higher IOPS and mib/s

A

gp3

23
Q

does gp3 have 4x faster max throughput vs gp2?

A

Yes 1000 MiB/s max

24
Q

High performance SSD volume designed for latency-sensitive transactional workloads and I/O-intensive database workloads

A

io1

25
Q

High performance SSD volume designed for business-critical latency-sensitive applications and workloads that require
sub-millisecond latency

A

io2

26
Q

max throughput of io1/io2

A

64,000

27
Q

max MiB/s of io1/io2

A

1000

28
Q

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

A

st1 (throughput optimized)

29
Q

Throughput-oriented HDD storage for data that is infrequently accessed or scenarios where the lowest storage cost is (cold hdd)
important

A

sc1 (cold hdd)

30
Q

storage type which has small, random I/O operations

A

SSD storage

31
Q

storage type for large, sequential I/O operations.

A

HDD storage

32
Q

Does Instance store perform with more IOPS and throughput than EBS?

A

Yes

33
Q

If you need persistence storage you should default to?

A

EBS

34
Q

If you need resilient storage you should default to?

A

EBS

35
Q

If you need storage isolated from instances you should default to?

A

EBS

36
Q

If you need storage with super high performance you should default to?

A

Instance Store

37
Q

If cost is a concern what storage you should default to?

A

Instance Store

38
Q

If you need cheap persistence storage what EBS type should you use?

A

ST1 or SC2

39
Q

If you need persistence storage balanced for throughput or streaming what EBS should you default to?

A

ST1

40
Q

Can ST1 or SC2 be used as boot volumes?

A

No

41
Q

If you need storage with IOPS up to 16,000 what should you default to?

A

GP2/3

42
Q

If you need storage with IOPS up to 64,000 what should you default to?

A

IO1/2

43
Q

Individual volumes combined together with the ability to reach up to 260,000 IOPS (max IOPS per instance)

A

RAID0 + EBS

44
Q

If you need storage with IOPS larger than 260,000 what should you default to?

A

Instance Store

45
Q

automate the creation of EBS snapshots

A

Amazon Data Lifecycle Manager (Amazon DLM)

46
Q

Do EBS volumes support live configuration changes while in production without service interruptions

A

Yes