You need to host a React frontend and a Node.js backend. How would you deploy them on AWS?

I am preparing for AWS and full-stack developer interviews and would like to understand the best way to deploy a React frontend and a Node.js backend on AWS.

Could someone explain:

Which AWS services are recommended for hosting the React frontend?
Should the Node.js backend be deployed on Amazon EC2, Elastic Beanstalk, ECS, or AWS Lambda?
How can the frontend securely communicate with the backend?
Which database service (Amazon RDS or DynamoDB) is suitable for this architecture?
How can Amazon CloudFront improve performance?
What security best practices should be followed using IAM, Security Groups, and HTTPS?
Could you also share a simple deployment architecture or workflow?

A step-by-step explanation with a real-world example would be very helpful.