WEB ESSENTIAL UNIT V

What is a servlet?

• A servlet is a web server software.

• A servlet is a Java class that handles requests and responses in a web application.

• A servlet is a type of database.

• A servlet is a programming language.

What does a servlet do?

• A servlet stores data in a database.

• A servlet processes requests and generates responses in a web application.

• A servlet is a type of web browser.

• A servlet creates graphical user interfaces.

How do you send data using GET?

• Send data as a JSON object in the header.

• Include data in the HTTP response instead of the request.

• Use the POST method with a request body.

• Use the URL format: 'http://example.com?key1=value1&key2=value2'.

How do you send data using POST?

• Use an HTTP client to send a POST request with data in the request body.

• Send data as URL-encoded strings in the header.

• Use an FTP client to transfer files directly.

• Send data using a GET request with query parameters.

What is a session in web applications?

• A session is a temporary interaction between a user and a web application that maintains state across multiple requests.

• A session is a type of database query used in web applications.

• A session is a method for encrypting user passwords.

• A session is a permanent storage of user data on the server.

What are cookies used for?

• Cookies are used for managing server hardware.

• Cookies are used for enhancing image quality.

• Cookies are used for increasing website loading speed.

• Cookies are used for storing user preferences, session management, and tracking user behavior.

What does JDBC stand for?

• Java Database Connectivity

• Java Data Binding

• Java Data Base Connection

• Java Document Control

How do you connect to a database using JDBC?

• Use JDBC to load the driver, establish a connection, and execute SQL queries.

• Execute SQL queries without loading the driver.

• Establish a connection using only a URL.

• Use SQL to connect directly without a driver.

What is the life cycle of a servlet?

• Loading, processing, and caching only

• The life cycle of a servlet includes loading, initialization, request handling, and destruction.

• Initialization, execution, and termination

• Request handling, response generation, and logging

Can you name a simple interactive application?

• Weather App

• To-Do List Manager

• Basic Calculator

• Photo Editor