What is servlet in Java Mcq?
Explanation: Servlet has various components like container, config, context, filter. Servlet filter provides the dynamic interception of requests and responses to transform the information.
What is function of Servlet container Mcq?
What are the functions of Servlet container? The main functions of Servlet container are: 1. Lifecycle management : Managing the lifecycle events of a servlet lik class loading, instantiation, initialization, service, and making servlet instances eligible for garbage collection.
What are the two main types of servlet?
There are two main servlet types, generic and HTTP:
- Generic servlets. Extend javax. servlet. GenericServlet. Are protocol independent.
- HTTP servlets. Extend javax. servlet. HttpServlet. Have built-in HTTP protocol support and are more useful in a Sun Java System Web Server environment.
What is servlet configuration?
ServletConfig is an object containing some initial parameters or configuration information created by Servlet Container and passed to the servlet during initialization. ServletConfig is for a particular servlet, which means one should store servlet-specific information in web.
Which of the following ways to create a servlet?
There are three ways to create the servlet.
- By implementing the Servlet interface.
- By inheriting the GenericServlet class.
- By inheriting the HttpServlet class.
What is servlet function?
A servlet is a Java programming language class that is used to extend the capabilities of servers that host applications accessed by means of a request-response programming model. Although servlets can respond to any type of request, they are commonly used to extend the applications hosted by web servers.
What are the advantages of servlet in Java?
The advantages of Servlet are as follows:
- Better performance: because it creates a thread for each request, not process.
- Portability: because it uses Java language.
- Robust: JVM manages Servlets, so we don’t need to worry about the memory leak, garbage collection, etc.
- Secure: because it uses java language.
Why do you use servlet?
Are there any multiple choice questions on Java Servlet?
Here are the collections of multiple-choice questions on Java Servlet includes the MCQ questions on the fundamentals of Java servlet and servlet life cycle.
Where does a servlet execute?
Clarification: Servlets execute within the address space of a web server. Since it is written in java it is platform independent. The full functionality is available through libraries. 9. How is the dynamic interception of requests and responses to transform the information done?
What are the different methods in HTTP servlet?
An HTTP Servlet is a Servlet that supports HTTP protocol and its different HTTP methods such as HTTP GET, HTTP PUT, HTTP POST, HTTP DELETE and HTTP PATCH. The different methods in the Servlet are doGet (), doPost (), doPut (), doTrace (), doOptions ().
When should the addcookie method be called in servlet?
i) The addCookie method must be called before the response is committed so that the appropriate headers can be set. ii) Further output should be made by the servlet after calling the sendError method. 10. Which of the following are the methods of cookies that are used for section tracking.
https://www.youtube.com/watch?v=DkHD1H7I7z0