S3 Flashcards

1
Q

S3 ____ enables apps to retrieve only a subset of data from an object by using simple SQL expressions. BY using S3 ____ to retrieve only the data needed by your app, you can achieve drastic permformance increases, - in many cases, you can get as much as 400% improvement.

A

select

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2
Q

Let’s assume all your data is stored in S3 in zip files that contain CSV files. WIthout S3 _____, you would need to download, decompress, and process the entire CSV to get the data you needed.

A

select

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3
Q

WIth S3 Select, you can use a ___ ___ ___ to return only the data from the store you’re interested in instead of retrieving the entire object. This means you’re dealing with an order of magnitude less data, which improves the performance of your underlying applications.

A

simple SQL expression

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4
Q

___ ____ allows you to run SQL queries against Glacier daily

A

glacier select

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5
Q

3 different ways to share s3 buckets across accounts

  • Using ___ ____ & ____ (Applies across the entire bucket). Programmatic access only.
  • Using ___ ____ & ____ (individul objects). Prograaammatic access only.
  • Cross account ___ ____. programmatic and console access
A

bucket policies & IAM

bucket ACLs & IAM

IAM Roles

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6
Q

T or F

Cross region repliction requires versioning on the s3 bucket

A

True

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7
Q

S3 ___ ___ utilises the CloudFront Edge network to accelerate your uploads to s3. Instead of uploading directly to your S3 bucket, you cna uses a distinct URL to upload directly to an edge location which will then transfer that file to s3. you will get a distinct URL to upload to such as acloudguru.s3-accelerate.amazonaws.com

A

transfer acceleration

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8
Q

____ automatically encrypts data and accelerates transfer over the WAN. ____ performs automatic daata integrity checks in transit and at rest.

A

datasynch

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9
Q

datasync seamalessly and securely connects to amazon ___, ___, or ___ to copy data and metadata to and from AWS.

A

s3, efs, fsx

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10
Q

___ is used for the following

used to move large amounts of data from on prem to aws.

used with NFS and SMB compatible file systems.

replication can be done hourly, daily, or weekly.

install the ____ agent to start the replication.

can be used to replicate EFS to EFS

A

datasync

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11
Q

What is the availability of S3-one_zone-IA?

A

99.50%

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12
Q

____ retrievals allow you to quickly access your data stored in the S3 Glacier storage class when occasional urgent requests for a subset of archives are required, but at the highest cost.

A

expidited

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13
Q

____ retrievals allow you to access any of your archived objects within several hours, this is faster than bulk (averaging around 12 hours) but more expensive.

A

standard

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14
Q

____ retrievals are the lowest-cost retrieval option in Amazon S3 Glacier, enabling you to retrieve large amounts, even petabytes, of data inexpensively.

A

bulk

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15
Q

What is the availability of objects stored in S3?

A

99.99%

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16
Q

S3 has eventual consistency for which HTTP Methods?

A

overwrite PUTS and DELETES

17
Q

what is the minimum file size you can store in s3?

A

0mb

18
Q

how many s3 buckets can i have per account by default?

A

100