Which of the following is the MOST suitable setup for the database-tier?

A music publishing company is building a multitier web application that requires a key-value store which will save the document models. Each model is composed of band ID, album ID, song ID, composer ID, lyrics, and other data. The web tier will be hosted in an Amazon ECS cluster with AWS Fargate launch type.

Which of the following is the MOST suitable setup for the database-tier?
A . Launch an Amazon RDS database with Read Replicas.
B . Use Amazon WorkDocs to store the document models.
C . Launch a DynamoDB table.
D . Launch an Amazon Aurora Serverless database.

View Answer

Answer: C

Explanation:

Amazon DynamoDB is a fast and flexible NoSQL database service for all applications that need consistent, single-digit millisecond latency at any scale. It is a fully managed cloud database and supports both document and key-value store models. Its flexible data model, reliable performance, and automatic scaling of throughput capacity makes it a great fit for mobile, web, gaming, ad tech, IoT, and many other applications.

Hence, the correct answer is: Launch a DynamoDB table.

The option that says: Launch an Amazon RDS database with Read Replicas is incorrect because this is a relational database. This is not suitable to be used as a key-value store. A better option is to use DynamoDB as it supports both document and key-value store models.

The option that says: Use Amazon WorkDocs to store the document models is incorrect because Amazon WorkDocs simply enables you to share content, provide rich feedback, and collaboratively edit documents. It is not a key-value store like DynamoDB.

The option that says: Launch an Amazon Aurora Serverless database is incorrect because this type of database is not suitable to be used as a key-value store. Amazon Aurora Serverless is an on-demand, auto-scaling configuration for Amazon Aurora where the database will automatically start-up, shut down, and scale capacity up or down based on your application’s needs. It enables you to run your database in the cloud without managing any database instances. It’s a simple, cost-effective option for infrequent, intermittent, or unpredictable workloads and not as a key-value store. References:

https://aws.amazon.com/dynamodb/

https://aws.amazon.com/nosql/key-value/

Check out this Amazon DynamoDB Cheat Sheet:

https://tutorialsdojo.com/amazon-dynamodb/

Amazon DynamoDB Overview:

https://www.youtube.com/watch?v=3ZOyUNIeorU