Java ee - Interview Questions and Answers for 'Hcl tech' | Search Interview Question

Java ee - Interview Questions and Answers for 'Hcl tech' - 3 question(s) found - Order By Newest

Frequently asked. Among first few questions in the J2EE segment of interview.

Q1. What is deployment descriptor ?

or

What is the use of deployment descriptor ?

Ans. Deployment Descriptor which is usually web.xml is used to specify the classes, resources and configuration of the application and how the web server uses them to serve web requests.This file is usually added to WEB-INF folder and contains following

* Servlet entries and url mapping
* Plugins
* Some info regarding authentication / filters
* Landing Page
* Event Handlers

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Related Questions

Which of the following file is called deployment descriptor ?

a. application.xml
b. project.xml
c. web.xml
d. build.xml

Can we have multiple servlets in a web application and How can we do that ?

Is there any relationship between Web.xml and Spring.xml ?

What is the difference between filter and filter-mappings xml tag within deployment descriptor ?

Q2. Difference between jar , war and ear ?

Java EE

Ans. Jar is Java Archieve i.e compressed Class or Class / Java files.

War comprises of compressed Servlet class files,JSP FIles,supporting files, GIF and HTML files.

Ear comprise of compressed Java and web module files ( was files ).

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Related Questions

Can we generate Java Documentation using Export -> JavaDoc using a jar file ?

How can I change the default location of the generated jar when I command "mvn package"?

What would you do if you have to add a jar to the project using Maven ?

If you are given a choice to have a functionality shared either through dependency or through a Web service, which one will you choose ?

Given 2 jars of 5 ltr and 3 ltr, how will you get 4 ltrs in one of those jars ?

Can we deploy an application to server using a jar file ?

What is Jar ?

If you are given a Jar file , How can you go through it understand what it does

Why do we have multiple core java jars in java 9 ?

Q3. What is a cookie ?

Java EE

Ans. A cookie is a small piece of text stored on a user's computer by the browser for a specific domain. Commonly used for authentication, storing site preferences, and server session identification.

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Related Questions

What is session tracking and how do you track a user session in servlets?

what is the use of cookie and session ? and What is the difference between them ?

What are different types of cookies ?

Why using cookie to store session info is a better idea than just using session info in the request ?

http protocol is by default ... ?

How cookies helps by storing encrypted passwords ?

Is it front end code or the back end code , that drops the cookies ?

How can we drop cookies through back end code ? Does it transfer the cookie file to the client ?

What is SameSite cookie attribute ?

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