AWS Certified Solutions Architect Associate (SAA-C03) - Database Types

The video tutorial provides an overview of AWS database concepts, focusing on the types of databases available, including hosted services and custom instance installs. It explains the differences between flat file and relational databases, and introduces NoSQL databases like DynamoDB. The tutorial also covers data warehouses, emphasizing their role in business intelligence and decision support. Key AWS services such as Aurora, Redshift, and EC2 are discussed, highlighting their functionalities and use cases.

What is the primary benefit of using hosted services databases in AWS?

• They are always cheaper than custom instance installs.

• AWS manages the service, reducing the need for manual setup.

• They only support NoSQL databases.

• You have full control over the operating system.

Which of the following is NOT a relational database service offered by AWS?

• MariaDB

• DynamoDB

• Microsoft SQL Server

• Aurora

What is a key characteristic of flat file databases?

• They store data in a single table or worksheet.

• They are optimized for fast transactions.

• They are a modern database design.

• They use multiple tables to store data.

What was a significant reason for the development of DynamoDB?

• To replace all SQL databases in AWS.

• To provide a cheaper alternative to Oracle databases.

• To create a database that supports only read operations.

• To address Amazon's holiday season load issues in 2004.

What is the main focus of NoSQL databases like DynamoDB?

• Offering a cheaper alternative to data warehouses.

• Ensuring data is stored in a structured format.

• Providing a SQL-based query language.

• Supporting fast read and write operations.

What is the primary purpose of a data warehouse?

• To store transactional data for quick access.

• To serve as a central repository for aggregated data.

• To replace all relational databases.

• To provide a platform for developing mobile applications.

Which AWS service is recommended for data warehousing?

• Redshift

• Aurora

• RDS

• DynamoDB