Module 5

Question 1

Instance store

Answer 1

provides temporary block-level storage for an Amazon EC2 instance. An instance store is disk storage that is physically attached to the host computer for an EC2 instance, and therefore has the same lifespan as the instance. When the instance is terminated, you lose any data in the instance store.

Question 2

Amazon Elastic Block Store (Amazon EBS)

Answer 2

a service that provides block-level storage volumes that you can use with Amazon EC2 instances. If you stop or terminate an Amazon EC2 instance, all the data on the attached EBS volume remains available.

Question 3

EBS snapshot

Answer 3

is an incremental backup. This means that the first backup taken of a volume copies all the data. For subsequent backups, only the blocks of data that have changed since the most recent snapshot are saved

Question 4

Amazon Simple Storage Service (Amazon S3

Answer 4

a service that provides object-level storage. Amazon S3 stores data as objects in buckets.
You can upload any type of file to Amazon S3, such as images, videos, text files, and so on. For example, you might use Amazon S3 to store backup files, media files for a website, or archived documents. Amazon S3 offers unlimited storage space. The maximum file size for an object in Amazon S3 is 5 TB.
When you upload a file to Amazon S3, you can set permissions to control visibility and access to it. You can also use the Amazon S3 versioning feature to track changes to your objects over time.

Question 5

S3 Storage Classes (8 of them)

Answer 5

1- S3 Standard:
2- S3 standard-infrequent access (S3 standard-IA)
3- S3 one zone-infrequent access (S3 one zone-IA)
4- S3- intelligent tiering
5- S3 glacier instant retrieval
6- S3 glacier flexible retrieval
7- S3 glacier deep archive
8- S3 outposts

Question 6

S3 Standard:

Answer 6

a. Designed for frequently accessed data
b. Stores data in a minimum of three Availability Zones

Question 7

S3 standard-infrequent access (S3 standard-IA)

Answer 7

a. Ideal for infrequently accessed data
b. Similar to Amazon S3 Standard but has a lower storage price and higher retrieval price

Question 8

S3 one zone-infrequent access (S3 one zone-IA)

Answer 8

a. Stores data in a single Availability Zone
b. Has a lower storage price than Amazon S3 Standard-IA

Question 9

S3- intelligent tiering

Answer 9

a. Ideal for data with unknown or changing access patterns
b. Requires a small monthly monitoring and automation fee per object

Question 10

S3 glacier instant retrieval

Answer 10

a. Works well for archived data that requires immediate access
b. Can retrieve objects within a few milliseconds

Question 11

S3 glacier flexible retrieval

Answer 11

a. Low-cost storage designed for data archiving
b. Able to retrieve objects within a few minutes to hours

Question 12

S3 glacier deep archive

Answer 12

a. Lowest-cost object storage class ideal for archiving
b. Able to retrieve objects within 12 hours

Question 13

S3 outposts

Answer 13

a. Creates S3 buckets on Amazon S3 Outposts
b. Makes it easier to retrieve, store, and access data on AWS Outposts

Question 14

Amazon Elastic File System (Amazon EFS)

Answer 14

is a scalable file system used with AWS Cloud services and on-premises resources. As you add and remove files, Amazon EFS grows and shrinks automatically. It can scale on demand to petabytes without disrupting applications.

Question 15

Structured Query Language Storage (SQL)

Answer 15

Is a relational Database
This approach allows data to be stored in an easily understandable, consistent, and scalable way. For example, the coffee shop owners can write a SQL query to identify all the customers whose most frequently purchased drink is a medium latte.

Question 16

Amazon RDS database engines

Answer 16

Amazon RDS is available on six database engines, which optimize for memory, performance, or input/output (I/O). Supported database engines include:
* Amazon Aurora
* PostgreSQL
* MySQL
* MariaDB
* Oracle Database
* Microsoft SQL Server

Question 17

Amazon Aurora

Answer 17

an enterprise-class relational database. It is compatible with MySQL and PostgreSQL relational databases. It is up to five times faster than standard MySQL databases and up to three times faster than standard PostgreSQL databases.

Question 18

DynamoDB

Answer 18

non relational database: Nonrelational databases are sometimes referred to as “NoSQL databases” because they use structures other than rows and columns to organize data. One type of structural approach for nonrelational databases is key-value pairs. With key-value pairs, data is organized into items (keys), and items have attributes (values). You can think of attributes as being different features of your data.

Question 19

Amazon Redshift

Answer 19

a data warehousing service that you can use for big data analytics. It offers the ability to collect data from many sources and helps you to understand relationships and trends across your data

Question 20

AWS Database Migration Service

Answer 20

enables you to migrate relational databases, nonrelational databases, and other types of data stores. With AWS DMS, you move data between a source database and a target database. The source and target databases(opens in a new tab) can be of the same type or different types. During the migration, your source database remains operational, reducing downtime for any applications that rely on the database.