Computer Science Class Quiz

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Questions and Answers

What issue is commonly associated with lower priority threads?

Race condition

Thread leakage

Starvation (correct)

Process death

What type of file is web.xml classified as?

Backup file

Executable file

Servlet file

Configuration file (correct)

Which of the following environment variables is typically not configured during the installation of Apache Tomcat?

Java_home

Catalina_home

Jdk_home

Servlet_path (correct)

To transition a newly created thread to the 'ready state', which method should be called?

Start() Signup and view all the answers

Which of the following is not a package related to servlets?

Javax.web.servlet Signup and view all the answers

DSN is an abbreviation that commonly stands for what?

Data Source Name Signup and view all the answers

How many servlet contexts does a single web application possess?

1 Signup and view all the answers

Files in packages are typically organized based on which of the following criteria?

All of these Signup and view all the answers

When is a JSP page translated into a servlet?

Once Signup and view all the answers

For a bean class, which statement correctly describes its requirement regarding serialization?

Must Signup and view all the answers

JSP action elements are primarily used to interact with which of the following?

JavaBeans Signup and view all the answers

What does MVC stand for in the context of application design?

Model View Controller Signup and view all the answers

In software architecture, layers represent which aspect of an application?

Logical view Signup and view all the answers

Tiers represent which view of application?

Physical Signup and view all the answers

Managed Beans in Java are primarily defined in which type of file?

Configuration file Signup and view all the answers

What does UDDI stand for?

Universal Description, Discovery & Integration Signup and view all the answers

Which of the following is identified as a standard web-based application framework?

JSF Signup and view all the answers

Which component is classified as a general-purpose container?

JPanel Signup and view all the answers

In the directory structure of web components, which elements are typically included?

web.xml, Classes folder Signup and view all the answers

From most visible to least visible, what is the correct order for Bean scope in JSP pages?

page, request, session, application Signup and view all the answers

Which of the following framework components is not typically associated with modern web applications?

Visual Basic Signup and view all the answers

Study Notes

Thread Management Issues

Lower priority threads can face starvation, where they do not get the necessary CPU time due to higher priority threads constantly executing.
Average waiting time for lower priority threads may increase, affecting overall system performance.

Web.xml Overview

Web.xml is a crucial configuration file that defines the deployment descriptor for a web application in Java.

Apache Tomcat Server Configuration

During the installation and configuration of the Apache Tomcat server, the classpath variable value is typically not set by default.
Other variables like JAVA_HOME, CATALINA_HOME, and JDK_HOME are usually configured.

Thread State Management

A newly created thread can transition to the "ready state" by invoking the start() method, preparing it for execution.

Servlet Packages

The package javax.servlet.servlet is considered a non-standard servlet related package and does not exist within the Java servlet framework.
Valid servlet-related packages typically include javax.servlet and associated components.

Data Source Name and Application Context

DSN stands for Data Source Name, essential for database setup.
Each web application has exactly one ServletContext accessible to all resources within that application.

Package Organization and JSP Translation

Files are organized in packages based on functionality, usability, and category.
A JSP page is translated into a servlet only once upon its initial access.

Bean Serializable Requirement and JSP Action Elements

A bean class must be serializable, ensuring its state can be saved and restored.
JSP action elements facilitate interaction with JavaBeans.

MVC and Application Views

MVC stands for Model View Controller, a design pattern for developing user interfaces.
Layers provide a logical view of an application, while tiers represent its physical view.

Managed Beans and UDDI

Managed Beans are JavaBeans defined in a configuration file.
UDDI stands for Universal Description, Discovery & Integration, a framework for publishing and locating web services.

Web-Based Application Frameworks and General Purpose Containers

JSF (JavaServer Faces) is recognized as a standard web-based application framework.
JPanel is an example of a general-purpose container used in graphical user interfaces.

Directory Structure in Web Components

The directory structure of web components includes html, JSP, images, web.xml, and classes folder.
IDEs like NetBeans simplify the creation of web.xml and directory structures for developers.

Bean Scope Order in JSP

The correct order for bean scope in JSP from most visible to least visible is page, request, session, application.

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Description

Test your knowledge on threads, web configuration, and Apache Tomcat server setup with this quiz. Answer questions about thread priority issues, servlet files, and variable values during installation. Challenge yourself to see how well you understand these essential computer science concepts.