mod05

Question 1

storage types in AWS

Answer 1

block
file
object

Question 2

block

Answer 2

local - tied up to an ec2 instance

Question 3

file storage

Answer 3

shared

Question 4

instance store

Answer 4

temporary while instance is working

Question 5

EBS Volumes

Answer 5

elastic block storage
persistent after instance termination
only the changed data is backup

Question 6

file storage

Answer 6

data that needs to be shared

Question 7

EFS Elastic File System

Answer 7

Scalable
Provides data to tousands of EC2 instances concurrently
store data across many multiple AZ
For windows use fsx with smb

Question 8

components of an object storage

Answer 8

data
metadata
key

Question 9

S3

Answer 9

store objects in buckets
set permissions to control access
manage different classes of storage plans
up to 5 TB in size

Question 10

s3 storage classes

Answer 10

standard : frequently accessed data over many AZ (99.99% availability) - up to 90 day
standard IA: infrequently access; lower storage price but higher retrieval price - up to 180 days
one zone IA: only uses an AZ and lower price than standard IA (99.5% availability)
s3 glacier instant retrieval: low cost storage designed for data achieving (in ms)
s3 glacier flexible retrieval: lowe cost and retrieval in minutes up to hours
s3 intelligent tiering: for data with unknown or changing access patterns , small monitoring fee
s3 glacier deep archive: to be retrieved around 12 hrs lowes cost achieving - up to 10 years then delete
s3 glacier outpost: low cost on premises object storage and for local processing

Question 11

databases types

Answer 11

relational
non relational

Question 12

aurora

Answer 12

enterprise relational db
eliminate unnecesary i/o operations
backup over six AZ

Question 13

nonrealtional databases

Answer 13

use key valuepairs

Question 14

dynamodb

Answer 14

serverless key value db
scales and maintain as needed
manage up to 10 trillion requests