Which server service is responsible for handling automatic responses?

• A. Tomcat
• B. IIS
• C. Apache
• D. Nginx

Answer: (A)

Tomcat is the Java servlet container that runs the web application and handles the dynamic, server-side logic that generates automatic responses. When a client makes an HTTP request, Tomcat processes the request using the app’s servlets and JSPs, runs the necessary code, and sends back the generated response. The other options—IIS, Apache HTTP Server, and Nginx—are general web servers that can serve static content or proxy requests, but they don’t execute Java-based web application code themselves. They may proxy to Tomcat or host non-Java content, but the automatic responses produced by the Java web application are generated by Tomcat, making it the component responsible for those responses.