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AWS Cloud Practitioner (CLF-C02) > S3 > Flashcards

S3 Flashcards

1
Q

S3 Use Cases

A

Backup and Storage
DR
Archive
Hybrid Cloud Storage
App hosting
Media hosting
Data lake & big data analytics
Software Delivery
Static Website

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2
Q

Buckets

A

Top level directories

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3
Q

Files in S3 aka

A

objects

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4
Q

What level do buckets reside at?

A

Region

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5
Q

Are S3 Buckets global or regional?

A

Regional

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6
Q

Object key aka

A

File path

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7
Q

Object key composed of…

A

prefix + object name

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8
Q

S3 Max object size

A

5TB

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9
Q

When is “multi-part upload” needed

A

Files larger than 5GB

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10
Q

S3 security methods (3)

A

User-based (IAM policies)
Resource-based (Bucket policies, ACL’s)
Encryption

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11
Q

Document format for S3 policies

A

JSON

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12
Q

S3 policies can…

A

Grant public access
Force encryption at upload
Grant access to another account

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13
Q

What is needed to make a bucket public?

A

S3 policy

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14
Q

Versioning

A

First is one and then overwriting a file increases the version

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15
Q

Benefits of versioning

A

Protects against deletion
Easy roll back

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16
Q

Reason for null versions

A

Files that existed before enabling versioning

17
Q

Cross-region replication use (3)

A

Compliance
Lower latency access
Replication across accounts

18
Q

Same-region replication uses (2)

A

Logs
Replication between production and test

19
Q

How many 9’s of durability for S3?

A

11 9’s

20
Q

S3 availability percentage

A

99.99% (53 mins of downtime)

21
Q

Server side encyrption

A

Server encrypts after receiving file

22
Q

Client-side encryption

A

Encrypts before uploading

23
Q

Which encryption type is always on?

A

Server-side

24
Q

Customer responsibility for S3 encryption

A

Encryption at rest and in transit

25
Q

AWS Snow purposes

A

Portable devices to collect and process data at the edge, and migrate to/from AWS

26
Q

Snowball edge purpose

A

Move TB or PB in and out of AWS
Pay per transfer job

27
Q

Snowball edge capacity

A

Storage optimized: 80TB
Compute optimized: 42TB or 28TB NVME

28
Q

Snowcone

A

Rugged device
Light
Good for space constraints

29
Q

Snowcone capacity

A

8TB
Snowcone SSD 14TB

30
Q

Snowmobile

A

Truck
Exabytes of migration

31
Q

Snowmobile capacity

A

100PB of capacity

32
Q

Edge location

A

No internet access (trucks, ships, mines)

33
Q

Snowball edge/snowcone use cases

A

Preprocess data
ML at the edge
Transcoding media streams

34
Q

Snowball long term deployment options

A

1-3 years

35
Q

Do Snow devices have processors?

A

Yes

36
Q

AWS OpsHub

A

GUI Client to manage Snow devices

37
Q

Are AMI’s available for snow devices?

A

Yes

38
Q

AWS Storage Gateway

A

Bridge on-prem to storage cloud (EBS, S3, Glacier)

AWS Cloud Practitioner (CLF-C02) (21 decks)

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