S3

Question 1

S3 stands for:

Answer 1

Simple Storage Service

Question 2

S3 (at a high level)

Answer 2

backup/storage
disaster recovery
files stored in buckets
* buckets must be globally unique
buckets defined at Region level

Question 3

S3 max object size?

Answer 3

5 TB (5000GB)

Question 4

S3 user based policy

Answer 4

user based (IAM policies)

Question 5

S3 bucket policy

Answer 5

granting access to objects within a bucket

Question 6

S3 Standard

Answer 6

s3 storage class.
general purpose, for FREQUENTLY accessed data

Question 7

S3 Infrequent Access (Standard-IA)

Answer 7

s3 storage class.

for data infrequently accessed data but requires rapid access when needed.

costs more than S3 One Zone-IA.

Question 8

S3 Intelligent Tiering

Answer 8

s3 storage class.
optimize costs by automatically moving data to the most cost-effective access tier when patterns change

Question 9

S3 One Zone-Infrequent Access (One Zone-IA)

Answer 9

s3 storage class.
in 1 az
data that is accessed less frequently, but requires rapid access

Question 10

Durability vs Availability

Answer 10

durability = measurement of how healthy and resilient your data is.

availability = how readily available the service is

Question 11

True/False - S3 is not a durable service.

Answer 11

False. S3 is highly durable.

Question 12

S3 Object Lock

Answer 12

block object version deletion for a specific time

Question 13

S3 Glacier (Flexible Retrieval)

Answer 13

is a low-cost storage class for archive data that is accessed 1 - 2 times per year, takes long time to fetch data.
ex: use to store archived customer records

Question 14

S3 Glacier Deep Archive

Answer 14

lowest-cost storage class. takes LONGEST time to fetch data.
ex: good for backup

Question 15

Which tasks can S3 object life cycle configurations perform automatically? (Select THREE.)
(A) Deleting old object versions
(B) Moving objects to Glacier
(C) Deleting old buckets
(D) Deleting old objects
(E) Moving objects to an EBS volume

Answer 15

(A), (B), and (D).

It can delete old objects, and versions but not buckets. Object life cycle configurations can’t delete buckets or move objects to an EBS volume.

Question 16

S3 Object Lock

Answer 16

Store objects using a write-once-read-many (WORM) model.
Prevent objects from being deleted for a fixed amount of time

Question 17

S3 Encryption Types

Answer 17

• no encryption
• server-side encryption (s3 encrypts after receiving file)
• client-side encryption (user encrypts before loading)

Question 18

Shared responsibility for S3

Answer 18

aws = infrastruction, configuration, compliances

us = versioning, bucket policies, logging, data encryption

Question 19

AWS Snow Family

Answer 19

offline, physical devices sent by aws to load data to device and ship back

Question 20

Types of Snow Family

Answer 20

Snowball- smallest. good option for data migration from the local servers to the cloud, or disaster recovery/backup

Snowcone - medium size device/storage.
Snowmobile = largest device, a truck.

Question 21

Edge Computing

Answer 21

When you have limited or no internet but still have data to collect.
ex: mines, ships

Question 22

What do you use to configure your snow devices and launch instances?

Answer 22

OpsHub

Question 23

Hybrid Cloud

Answer 23

part on-premises part on aws cloud, good for security, compliance, etc.

Question 24

AWS Storage Gateway

Answer 24

a virtual machine that bridges the gap between on premises servers and cloud