Module 5: Storage and Databases

Question 1

Instance Store

Answer 1

• Provide temporary block-level storage for an Amazon EC2 instance.
• Disk storage that is physically attached to the host computer for an EC2 instance.
• Has the same lifespan as the instance.

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.
• All the data on the EBS remains available when an Amazon EC2 instance is terminated.

Question 3

Amazon Simple Storage Service (Amazon S3)

Answer 3

• A service that provides object-level storage.

- Stores data as objects in buckets.

Question 4

Amazon S3 Standard

Answer 4

• Designed for frequently accessed data.

- Stores data in a minimum of 3 Availability Zones.

Question 5

Amazon S3 Standard-Infrequent Access (S3 Standard-IA)

Answer 5

• Ideal for infrequently accessed data but requires high availability when needed.
• Minimum of 3 Availability Zones.

Question 6

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

Answer 6

• Stores data in a single AZ.

- Used to save on storage costs if data can easily reproduced in the event of an AZ failure.

Question 7

S3 Intelligent Tiering

Answer 7

Monitors objects’ access patterns and moves it between S3 Standard and S3 Standard-IA.

Question 8

S3 Glacier

Answer 8

• Low cost storage class that is ideal for data archiving.

- Able to retrieve objects within a few minutes to hours.

Question 9

S3 Glacier Deep Archive

Answer 9

• Lowest cost storage class ideal for archiving.

- Able to retrieve objects within 12 hours.

Question 10

File Storage

Answer 10

• Multiple clients can access data that is stored in shared file folders.
• A storage server uses block storage with a local file system to organize files.
• Ideal for use cases in which a large number of servers and resources need to access the same data at the same time.

Question 11

Amazon Elastic File System (Amazon EFS)

Answer 11

A scalable file system used with AWS Cloud services and on-premises resources.

Question 12

Relational Database

Answer 12

• Data is stored in a way that relates it other pieces of data.
• Use SQL to store and query data.

Question 13

Amazon Relational Database Service (Amazon RDS)

Answer 13

A managed service that automates tasks such as hardware provisioning, database setup, patching, and backups.

Question 14

Amazon Aurora

Answer 14

• An enterprise class relational database.
• Compatible with MySQL and PostgreSQL relational databases.
• Helps to reduce your database costs by reducing unnecessary input/output operations, while ensuring that your database resources remain reliable and available.

Question 15

Amazon DynamoDB

Answer 15

• A serverless key-value database service.

- Automatically scales.

Question 16

Amazon Redshift

Answer 16

• A data warehousing service that can be used for big data analytics.
• Collects data from many sources and helps to understand relationships and trends across the data.

Question 17

AWS Database Migration Service (AWS DMS)

Answer 17

• Enables you to migrate relational databases, non relational databases, and other types of data stores.
• Data is moved between a source and target DB.
• During the migration, source DB remains operational.

Question 18

Other Use Cases for AWS DMS

Answer 18

• Development and test DB migrations.
• Database Consolidation
• Continuous Replication

Question 19

Amazon DocumentDB

Answer 19

A document database service that supports MongoDB workloads.

Question 20

Amazon Neptune

Answer 20

A graph database service used to build and run applications that work with highly connected datasets.

Question 21

Amazon Quantum Ledger Database (Amazon QLDB)

Answer 21

Ledger database service.

Question 22

Amazon Managed Blockchain

Answer 22

Used to create and manage blockchain networks with open-source frameworks.

Question 23

Amazon Elasticache

Answer 23

A service that adds caching layers on top of your databases to help improve the read times of common requests.

Question 24

Amazon DynamoDB Accelerator (DAX)

Answer 24

An in-memory cache for DynamoDB that helps improve response times from single-digit milliseconds to microseconds.