Draw class diagram for Online Learning System. Make necessary assumptions.

Explain basic philosophy of object orientation. Explain basic constructs of object orientation with example.

Cross Site Request Forgery (CSRF)

Spring Framework

JSP Standard Tag Library (JSTL)

What is Role-based Login? Explain how user's access can be restricted using Role-based Login.

Write the unit test case to execute it as a user with RequestPostProcessor for the URL. pattern "/" which returns model attribute with key as "message" and value as "Hello World".

Explain how CRUD operations are mapped to SQL. statements, with suitable example.

Explain how testing of custom login form can be performed with the help of an example.

Explain process of creating records using Spring Boot and Hibernate.

What are the Strut2 core components? Explain the working and flow of Struts 2 with the help of suitable diagram.

What do you mean by JDBC? Explain how we retrieve data from database using suitable JSP program.

Explain the various components of JSP with suitable code.

Explain the advantages of Java Server Pages over the servlet. Also, write a JSP program for Fibonacci Series.

Briefly explain servlet life cycle. Also, explain the request and response in the context of HTTP?

What is Servlet interface? Differentiate between GenericServlet and HTTPServlet?

What is the difference between JAR and WAR files? Describe the process of creation, deployment and extraction of WAR files.

What is need of design pattern? Explain the use of Repository Design Pattern with the help of an example.

Analyze the role of feature selection and dimensionality reduction in data mining. Discuss techniques such as Principal Component Analysis (PCA), Linear Discriminant Analysis (LDA), and feature selection algorithms. Explain how these techniques help in improving model performance and reducing computational complexity.

Examine the role of association rule mining in data mining. Describe the Apriori algorithm and its variations. Discuss the challenges associated with association rule mining, such as the generation of large numbers of rules and the need for efficient computation.