Java - Computer Science Practice Questions and Answers

21

Question 21 of 30

What is the main responsibility of RMI server in Java?

To compile Java code

To handle remote method calls

To manage local file system

To provide GUI components

22

Question 22 of 30

Which of the following is NOT a JDBC driver type?

Type 1 Driver

Type 2 Driver

Type 5 Driver

Type 4 Driver

23

Question 23 of 30

What is the difference between a Servlet and a JSP?

Servlet is a Java class, JSP is a scripting language

Servlet runs on client side, JSP on server side

Servlet handles requests, JSP is used for presentation

Servlet is used for database connection, JSP is for web pages

24

Question 24 of 30

Which method is used to start a thread in server-side Java?

init()

start()

run()

execute()

25

Question 25 of 30

In JDBC, which component is responsible for establishing the connection to the database?

DriverManager

Connection

Statement

ResultSet

26

Question 26 of 30

What is the purpose of the finally block in Java exception handling?

To handle exceptions

To execute code regardless of exception

To define exceptions

To throw exceptions

27

Question 27 of 30

Which access modifier provides the widest visibility for a class member?

private

protected

public

default

28

Question 28 of 30

Which Java package contains classes for networking like Socket and ServerSocket?

java.lang

java.net

java.io

java.util

29

Question 29 of 30

What design pattern is used by the MVC architecture in Java web applications?

Singleton

Factory

Observer

Model-View-Controller

30

Question 30 of 30

Which of the following is an example of a container that provides runtime environment for Java EE applications?

Apache Tomcat

Java SE

JDBC

JVM

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