Object-Oriented Frameworks: Master the Basics for Efficient Coding

Question 1

The Hibernate framework is primarily designed for:

Accepted Answer

Simplifying database operations and mapping objects to relational database tables

Answer

Providing robust security mechanisms for web applications

Answer

Managing asynchronous tasks and ensuring efficient thread execution

Answer

Facilitating remote procedure calls and distributed computing

Question 2

What is the key distinction between the @Controller and @RestController annotations in Spring MVC?

Accepted Answer

@Controller handles HTTP requests and responds with views, while @RestController directly returns data as JSON

Answer

@RestController returns JSON data by default, while @Controller requires explicit JSON conversion

Answer

@RestController is used exclusively for RESTful services, while @Controller is used for traditional web applications

Answer

There is no meaningful difference between @Controller and @RestController

Question 3

The primary purpose of the @Transactional annotation in Spring is to:

Accepted Answer

Demarcate a block of code that should be executed within a database transaction, ensuring data integrity

Answer

Handle exceptions related to database operations and provide error handling

Answer

Manage the lifecycle of session objects and ensure proper resource cleanup

Answer

Provide additional security measures for database operations and protect against unauthorized access

Question 4

What is the primary function of the Spring Framework in Java?

Accepted Answer

Dependency injection

Answer

Database connectivity

Answer

Web application development

Answer

Data mapping

Question 5

Which of the following is NOT a component of the Spring Framework?

Accepted Answer

Hibernate Validator

Answer

Spring Boot

Answer

Spring Data

Answer

Spring MVC

Question 6

What is the primary purpose of the @Autowired annotation in Spring?

Accepted Answer

To automatically inject dependencies

Answer

To create new instances of beans

Answer

To validate data inputs

Answer

To define bean scopes

Question 7

What is the fundamental distinction between HQL and SQL?

Accepted Answer

HQL is object-oriented, whereas SQL is procedural

Answer

SQL is object-oriented, whereas HQL is procedural

Answer

HQL is used for database creation, whereas SQL is used for data manipulation

Answer

SQL is used for database creation, whereas HQL is used for data manipulation

Question 8

What is the primary purpose of utilizing a transaction manager in Hibernate?

Accepted Answer

To manage and control database transactions

Answer

To cache database queries

Answer

To validate data integrity

Answer

To enhance database performance

Question 9

Which of the following is **not** a core component of the Spring Framework?

Accepted Answer

Object-relational mapping (Hibernate)

Answer

IoC container

Answer

Data access layer (Spring JDBC)

Answer

MVC framework (Spring MVC)

Question 10

Which of the following annotations in Spring is used to mark a class as a bean to be managed by the IoC container?

Accepted Answer

@Component

Answer

@Autowired

Answer

@Repository

Answer

@Service

Question 11

In Hibernate, which annotation is used to map a Java property to a corresponding database column?

Accepted Answer

@Column

Answer

@Entity

Answer

@GeneratedValue

Answer

@Table

Question 12

Which of the following is the primary interface used for data access in the Hibernate Framework?

Accepted Answer

Session

Answer

SessionFactory

Answer

Query

Answer

Transaction

Question 13

Which of the following is **not** a feature of the Spring MVC framework?

Accepted Answer

Entity-Relationship diagram generation

Answer

Model-View-Controller architecture

Answer

RESTful API support

Answer

Dependency Injection

Question 14

Which of the following annotations in Hibernate is used to mark a class as an entity that can be mapped to a database table?

Accepted Answer

@Entity

Answer

@Table

Answer

@Column

Answer

@GeneratedValue

Question 15

What is a primary advantage of using the Spring Framework in Java development?

Accepted Answer

It provides a comprehensive set of tools and services designed for building enterprise-grade applications.

Answer

It is specifically designed for web development, offering specialized features for creating web applications.

Answer

It is a lightweight framework that has minimal impact on application performance.

Answer

It is a closed-source framework that requires a paid license for its use.

Question 16

Which of the following is NOT an advantage of using an object-oriented framework?

Accepted Answer

Increased code complexity

Answer

Reusability of code components

Answer

Shorter development timelines

Answer

Enhanced code quality and reliability

Question 17

Which of the following is NOT a primary benefit of utilizing object-oriented frameworks?

Accepted Answer

Simplified debugging process

Answer

Enhanced code reuse

Answer

Accelerated development time

Answer

Improved code maintainability

Question 18

What is the primary purpose of the Hibernate framework?

Accepted Answer

Object-relational mapping facilitation

Answer

Data validation enforcement

Answer

Transaction management implementation

Answer

Database querying simplification

Question 19

What are the fundamental principles of object-oriented programming (OOP)?

Accepted Answer

Encapsulation, inheritance, polymorphism

Answer

Abstraction, composition, modularity

Answer

Generics, interfaces, lambdas

Answer

Recursion, dynamic typing, exception handling

Question 20

In Spring, what annotation is used to designate a class as a service component?

Accepted Answer

@Service

Answer

@Component

Answer

@Bean

Answer

@Autowired

Question 21

Which design pattern is exemplified by Hibernate's SessionFactory?

Accepted Answer

Singleton

Answer

Abstract Factory

Answer

Builder

Answer

Mediator

Question 22

What is the primary purpose of Hibernate Query Language (HQL)?

Accepted Answer

Querying and manipulating Hibernate entities

Answer

Creating and modifying database schemas

Answer

Managing database transactions

Answer

Injecting dependencies into Hibernate components

Question 23

Which of the following is NOT considered an advantage of utilizing object-oriented frameworks?

Accepted Answer

Increased code complexity

Answer

Enhanced code reusability

Answer

Improved code maintainability

Answer

Reduced development time

Question 24

In an object-oriented framework, what is the role of an ORM?

Accepted Answer

Mapping objects to their corresponding database tables

Answer

Handling database transactions

Answer

Generating SQL queries

Answer

Injecting dependencies into classes

Question 25

What is a key advantage of using object-oriented frameworks?

Accepted Answer

Faster development

Answer

Easier code reading

Answer

Guaranteed code quality

Answer

No need for custom coding

Question 26

In Hibernate, what is lazy loading? Discuss its advantages and disadvantages.

Accepted Answer

Lazy loading in Hibernate defers loading objects from the database until they are needed by the application.

Answer

Lazy loading is not supported in Hibernate.

Answer

Lazy loading in Hibernate is only applicable to collections of objects.

Answer

Lazy loading in Hibernate always loads objects from the database when the session is opened.

Question 27

In Hibernate, which of these is a key characteristic of transactions?

Accepted Answer

Transactions can be nested within each other.

Answer

Transactions are always committed immediately upon execution.

Answer

Transactions can only operate on a single entity at a time.

Question 28

What is the key advantage of utilizing object-oriented frameworks in software development?

Accepted Answer

Access to a vast library of pre-built, reusable components and classes, enabling faster development and code standardization.

Answer

Enforcement of a strict programming language and development approach, ensuring code uniformity and reducing errors.

Answer

Guarantee of a bug-free and defect-free software product.

Answer

Exclusive suitability for large-scale, enterprise-level software projects.

Question 29

Which of the following is NOT a key advantage of using object-oriented frameworks?

Accepted Answer

Eliminating the requirement for comprehensive unit testing

Answer

Facilitating code reuse

Answer

Enhancing code maintainability

Answer

Accelerating development speed

Question 30

Which core component of the Spring Framework manages bean lifecycles and dependencies?

Accepted Answer

IOC container

Answer

Transaction Manager

Answer

Data Access Layer

Answer

Message Broker

Question 31

What is the primary responsibility of the Hibernate SessionFactory?

Accepted Answer

Controls persistence operations

Answer

Provides database connectivity

Answer

Maps Java objects to database tables

Answer

Manages transactions

Question 32

What type of dependency injection does Spring primarily utilize?

Accepted Answer

Both constructor and setter injection

Answer

Constructor injection only

Answer

Setter injection only

Answer

Field injection only

Question 33

Which type of ORM mapping represents a one-to-one relationship between a database table and a Java class?

Accepted Answer

One-to-one

Answer

One-to-many

Answer

Many-to-one

Answer

Many-to-many

Question 34

In Hibernate, which annotation is used to specify the primary key of an entity?

Accepted Answer

@Id

Answer

@PrimaryKey

Answer

@GeneratedValue

Answer

@Column

Question 35

What is the main purpose of the Spring JdbcTemplate class?

Accepted Answer

Simplified execution of SQL queries

Answer

Database connection management

Answer

Mapping of Java objects to database tables

Answer

Transaction handling

Question 36

Which principle is fundamental in designing object-oriented frameworks for flexibility and extensibility?

Accepted Answer

Dependency Inversion

Answer

Inheritance

Answer

Encapsulation

Answer

Polymorphism

Question 37

To optimize the performance of framework-based applications like Spring and Hibernate, which technique is most effective?

Accepted Answer

Cache database queries to reduce repeated queries.

Answer

Avoid using dependency injection.

Answer

Combine all ORM functionality into a single, comprehensive framework.

Question 38

Which primary benefit do object-oriented frameworks offer?

Accepted Answer

Reduced development time and effort

Answer

Increased code complexity

Answer

Improved code readability alone

Answer

Enhanced code security as the sole benefit

Question 39

The Spring framework primarily focuses on which aspect of software development?

Accepted Answer

Simplifying the development of enterprise-level Java applications

Answer

Cloud computing solely

Answer

Managing databases exclusively

Answer

User interface design as its main purpose

Question 40

Which key component sets the Hibernate framework apart?

Accepted Answer

Object-relational mapping (ORM) capabilities

Answer

Transaction management alone

Answer

Web services as its main focus

Answer

Dependency injection as its primary feature

Question 41

What is the primary goal of aspect-oriented programming (AOP) as implemented in Spring AOP?

Accepted Answer

Enhancing modularity and separation of concerns

Answer

Promoting code reuse as the sole objective

Answer

Simplifying unit testing exclusively

Answer

Improving code performance solely

Question 42

Which common use case highlights the functionality of Spring beans?

Accepted Answer

Managing dependencies and relationships between objects

Answer

Handling user input as their primary purpose

Answer

Performing complex calculations exclusively

Answer

Storing data in a database as the main use case

Question 43

What is the primary responsibility of the Hibernate session factory?

Accepted Answer

Creating, managing, and providing access to Hibernate sessions

Answer

Transaction management as its sole function

Answer

Executing SQL queries as its main task

Answer

Mapping Java objects to database tables exclusively

Question 44

Which key advantage does the Spring Framework's MVC architecture offer?

Accepted Answer

Separation of presentation logic from business logic

Answer

Enhanced code security as the main benefit

Answer

Simplified unit testing as its primary advantage

Answer

Improved code performance solely

Question 45

What is the primary purpose of the Hibernate Criteria API?

Accepted Answer

Enabling dynamic construction of database queries

Answer

Managing Hibernate sessions as its primary function

Answer

Executing SQL queries exclusively

Answer

Mapping Java objects to database tables as its main purpose

Question 46

Which benefit do object-oriented frameworks provide in software development?

Accepted Answer

Promoting improved code quality and maintainability

Answer

Faster development time as the sole benefit

Answer

Reduced memory consumption as the main advantage

Answer

Simplified debugging exclusively

Question 47

What is the fundamental difference between a Spring bean and a Plain Old Java Object (POJO)?

Accepted Answer

Spring beans can be managed and configured by the Spring IoC container

Answer

POJOs can be injected into Spring beans, but not vice versa

Answer

Spring beans are always annotated with @Component

Question 48

Which of the following is NOT a benefit of using the Hibernate framework?

Accepted Answer

Increased database performance

Answer

Easier database schema management

Answer

Improved data integrity

Answer

Reduced coding effort

Question 49

Which of the following is a key difference between an object-oriented framework and a library?

Accepted Answer

A framework provides a pre-defined structure, while a library offers a set of reusable components.

Answer

A framework is more complex to use than a library.

Answer

A framework is designed for specific tasks, while a library is more general-purpose.

Question 50

Which of the following is a common use case for object-oriented frameworks in enterprise applications?

Accepted Answer

Developing complex and scalable web applications

Answer

Creating mobile applications

Answer

Building operating systems

Answer

Implementing embedded systems

Question 51

Which of the following is a key feature of the Model-View-Controller (MVC) architectural pattern used in object-oriented frameworks?

Accepted Answer

Separation of concerns between data, presentation, and business logic

Answer

Use of a single database for all data storage

Answer

Centralization of all application logic in the model

Question 52

Which of the following is a benefit of using the Hibernate Criteria API for data access?

Accepted Answer

It provides a type-safe and object-oriented approach to querying data

Answer

It is simpler to use than Hibernate Query Language (HQL)

Answer

It offers better performance than direct SQL queries