Amazon RDS Database Instance Implementation

Correct Answer - D.

Amazon Relational databases service (RDS) is best suited in scenarios where the dataset and forms are consistent such that their data schema is persistently valid.

It is best to deploy in an environment where the load can be anticipated and is somewhat finite.

Amazon RDS engines include Amazon Aurora, MariaDB, PostgreSQL-

https://aws.amazon.com/rds/

Option A is INCORRECT because Amazon RDS engines are inappropriate in a scenario where datasets are constantly evolving and the data schema is flexible.

NoSQL/non-relational databases fit this use case.

Option B is INCORRECT because Amazon Relational Database service engines will scale up with the increase in load.

It is often necessary as the traffic patterns to the database increases.

Option C is INCORRECT because in a scenario where the datasets are dynamic and document-based, the use of JSON and not SQL is appropriate.

Therefore non-relationals/NoSQL database engines such as Amazon DynamoDB are suitable.

https://aws.amazon.com/nosql/

The correct answer is D. In an organization where only a finite number of processes query the database in predictable and well-structured Schemas.

Explanation: Amazon RDS (Relational Database Service) is a managed service that makes it easier to set up, operate, and scale a relational database in the cloud. It supports several popular relational database engines like MySQL, PostgreSQL, Oracle, and Microsoft SQL Server.

In contrast, NoSQL/non-relational databases like Amazon DynamoDB are designed for dynamic, non-structured datasets that can be rapidly and easily scaled horizontally, and whose data schema can evolve frequently.

Option A is incorrect because it describes a use case for a NoSQL/non-relational database like Amazon DynamoDB, which is better suited for constantly evolving datasets.

Option B is also incorrect because Amazon RDS allows both vertical and horizontal scaling of database resources.

Option C is incorrect because it describes a use case for a document-based NoSQL database like Amazon DocumentDB or MongoDB.

Option D is the correct answer because it describes a use case for a traditional relational database like Amazon RDS, which is best suited for organizations that have predictable and well-structured schemas and only a finite number of processes querying the database. Relational databases excel at handling complex queries and data relationships and are often used for transactional workloads.