Exploring J2EE Concepts

What does JSP stand for?

• JavaScript Pages

• JavaServer Protocols

• JavaServer Scripts

• JavaServer Pages

What is the primary purpose of a Java Servlet?

• To store data in a database.

• To create static web pages.

• To manage server hardware resources.

• To handle requests and generate dynamic web content.

Define J2EE in the context of Java programming.

• J2EE is a framework for building desktop applications in C++.

• J2EE is a platform for building enterprise-level applications in Java.

• J2EE is a programming language for mobile applications.

• J2EE is a database management system for Java.

What does RMI stand for in Java?

• Remote Method Interface

• Remote Method Invocation

• Remote Management Interface

• Remote Message Invocation

Explain the role of JDBC in Java applications.

• JDBC is a framework for developing web applications in Java.

• JDBC allows Java applications to connect to and interact with databases using a standard API.

• JDBC is a Java library for creating graphical user interfaces.

• JDBC is used for writing Java applications without any database connection.

What is the difference between JSP and Servlets?

• Servlets are used for database connections, JSP is for web services.

• JSP is a programming language, while Servlets are markup languages.

• JSP is for presentation, Servlets are for request handling.

• JSP and Servlets are the same thing.

How do you create a simple JSP page?

• Use a .jsp extension but do not include any HTML content.

• Create a .jsp file with HTML and JSP tags, save it in the web server's directory, and access it via a browser.

• Create a .html file with only HTML tags and no JSP tags.

• Save the .jsp file in the local directory and open it directly without a server.

What is the lifecycle of a Servlet?

• Loading, processing, and caching

• Request handling, response generation, and logging

• The lifecycle of a Servlet includes loading, initialization, request handling, and destruction.

• Initialization, execution, and termination

What are the main components of J2EE architecture?

• Presentation Layer, Data Layer, Service Layer, Security Layer

• Frontend Tier, Backend Tier, API Tier, Storage Tier

• Client Tier, Web Tier, Business Tier, Integration Tier, Resource Tier

• User Interface, Application Layer, Database Layer, Middleware Layer

How does RMI facilitate remote method invocation?

• RMI only works with Java applications and cannot be used with other languages.

• RMI allows direct access to local files on remote machines.

• RMI facilitates remote method invocation by allowing method calls on remote objects as if they were local, handling network communication and object serialization.

• RMI requires manual serialization of objects before transmission.