For a new application, you need to build up the logic tier and data storage tier in AWS.
The whole architecture needs to be serverless so that designers can quickly deploy the application without the need to manage servers.
Which of the following AWS services would you choose?
Click on the arrows to vote for the correct answer
A. B. C. D.Correct Answer - B.
The key to the question is that the architecture should be serverless.
For AWS serverless multi-tier architectures, please refer to https://d1.awsstatic.com/whitepapers/AWS_Serverless_Multi-Tier_Architectures.pdf.
Option A is incorrect: Because Amazon Cognito is not suitable for the logic tier, and Amazon RDS is not a serverless service.
Option B is CORRECT: Because both API Gateway/Lambda and Amazon DynamoDB are serverless so that the process of deploying servers is simplified.
Option C is incorrect: Amazon Redshift is a data warehouse service and is not serverless.
Option D is incorrect: Because Elastic Beanstalk utilizes EC2 instances as its computing resources are not a serverless service.
The best option for building a serverless architecture for a new application would be option B. The logic tier can be built using Amazon API Gateway and AWS Lambda, while the data storage tier can be built using Amazon DynamoDB.
Here's a more detailed explanation of each option:
A. Logic tier: “Amazon Cognito + Lambda”. Data Storage tier: “Amazon RDS” Amazon Cognito is an authentication service that can be used to manage user sign-up, sign-in, and access control. It is not a suitable choice for building a logic tier. AWS Lambda can be used to run serverless code, but it is not designed to build the logic tier. Amazon RDS is a managed relational database service, which means it requires servers to be managed. This option is not a good fit for a serverless architecture.
B. Logic tier: “API Gateway + Lambda”. Data Storage tier: “Amazon DynamoDB” Amazon API Gateway is a fully managed service that makes it easy for developers to create, publish, maintain, monitor, and secure APIs at any scale. AWS Lambda is a serverless compute service that can run code in response to events and automatically manage the underlying compute resources. Amazon DynamoDB is a fully managed NoSQL database service that provides fast and predictable performance with seamless scalability. This combination of services is a good fit for building a serverless architecture for a new application.
C. Logic tier: “API Gateway + Lambda”. Data Storage tier: “Amazon Redshift” Amazon Redshift is a fully managed data warehouse service that allows for fast querying and analysis of data using SQL. However, it is not suitable for a serverless architecture, as it requires servers to be managed. Amazon DynamoDB would be a better choice for a data storage tier.
D. Logic tier: “Elastic Beanstalk”. Data Storage tier: “Amazon Aurora” AWS Elastic Beanstalk is a service that makes it easy to deploy, manage, and scale applications in the AWS Cloud. However, it requires servers to be managed, which is not a good fit for a serverless architecture. Amazon Aurora is a MySQL and PostgreSQL compatible relational database built for the cloud, but it also requires servers to be managed. This option is not a good fit for building a serverless architecture for a new application.
In conclusion, option B is the best choice for building a serverless architecture for a new application, as it uses Amazon API Gateway, AWS Lambda, and Amazon DynamoDB to build the logic and data storage tiers.