Server components: A Java servlet is executed on the Web server and is invoked via HTTP requests that reach the server. Is this characterization accurate?

Database JDBC, Java Server Pages, and MySQL Difficulty: Easy
Choose an option
  • A
    Correct
  • B
    Incorrect
  • C
    Only true for JSP, not servlets
  • D
    Only true for SOAP, not HTTP

Answer

Correct Answer: Correct

Explanation

Introduction / Context:Servlets are server-side Java components that handle requests and generate responses, typically over HTTP. They run inside a servlet container such as Tomcat or a Java EE application server.

Given Data / Assumptions:

  • Client sends an HTTP request to the server.
  • Servlet container routes the request to a mapped servlet.
  • Servlet code executes on the server and returns a response.

Concept / Approach:Servlets implement doGet/doPost and related methods, reading request parameters and writing to the response stream. They are the foundation for higher-level frameworks (JSP, JSF, Spring MVC).

Step-by-Step Solution:Client issues HTTP request to a URL mapped to a servlet.Container constructs HttpServletRequest/Response objects.Servlet method executes server-side logic (I/O, DB calls).Servlet writes response; container returns it to client.Lifecycle methods init/destroy manage resources.

Verification / Alternative check:Inspect server logs or add logging to confirm server-side execution.

Why Other Options Are Wrong:Servlets are not client-side; SOAP is unrelated to whether HTTP invokes the servlet.

Common Pitfalls:Assuming servlets run in the browser; confusing servlet with applet.

Final Answer:Correct

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