What are the components of J2EE application?

J2EE Interview Questions and Answers (Part 1)

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3. What are the components of J2EE application?

A J2EE component is a self-contained functional software unit that is assembled into a J2EE application with its related classes and files and communicates with other components. The J2EE specification defines the following J2EE components:

• Application clients and applets are client components.
  
• Java Servlet and JavaServer PagesTM (JSPTM) technology components are web components.
  
• Enterprise JavaBeansTM (EJBTM) components (enterprise beans) are business components.
  
• Resource adapter components provided by EIS and tool vendors.
  

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Other Interview Questions

• What is J2EE?
• What is the J2EE module?
• What are the components of J2EE application?
• What are the four types of J2EE modules?
• What does application client module contain?
• What does web module contain?
• What are the differences between Ear, Jar and War files? Under what circumstances should we use each one?
• What is the difference between Session bean and Entity bean?one?
• What is "applet"
• What is "applet container"
• What is "application assembler"
• What is "application client"
• What is "application client container"
• What is "application client module"
• What is "application component provider"
• What is "application configuration resource file"
• What is "archiving"
• What is "asant"
• What is "attribute"What is "asant"
• What is authentication ?
• What is authorization?
• What is authorization constraint
• What is B2B
• What is backing bean
• What is basic authentication
• What is bean-managed persistence
• What is bean-managed transaction
• What is binding (XML)
• What is binding (JavaServer Faces technology)
• What is build file
• What is business logic
• What is business method
• What is callback methods
• What is caller
• What is caller principal
• What is cascade delete
• What is CDATA
• What is certificate authority
• What is client-certificate authentication
• What is comment
• What is commit
• What is component contract
• What is component-managed sign-on
• What is connector
• What is Connector architecture
• What is container
• What is container-managed persistence
• What is container-managed sign-on
• What is container-managed transaction
• What is content
• What is context attribute
• What is context root
• What is conversational state
• What is CORBA
• What is create method
• What is credentials
• What is CSS
• What is CTS
• What is data
• What is DDP
• What is declaration
• What is declarative security
• What is delegation
• What is deployer
• What is deployment descriptor
• What is destination
• What is digest authentication
• What is distributed application
• What is document
• What is Document Object Model
• What is document root
• What is DTD
• What is durable subscription
• What is EAR file
• What is ebXML
• What is EJB
• What is EJB container
• What is EJB container provider
• What is EJB context
• What is EJB home object
• What is EJB JAR file
• What is EJB module
• What is EJB object
• What is EJB server
• What is EJB server provider
• What is EJB server provider
• What is empty tag
• What is enterprise bean
• What is enterprise bean provider
• What is enterprise information system
• What is enterprise information system resource
• What is Enterprise JavaBeans (EJB)
• What is Enterprise JavaBeans Query Language (EJB QL)
• What is an entity
• What is entity bean
• What is entity reference
• What is error
• What is Extensible Markup Language
• What is external entity
• What is external subset
• What is fatal error
• What is filter
• What is filter chain
• What is finder method
• What is form-based authentication
• What is general entity
• What is group
• What is handle
• What is home handle
• What is home interface
• What is HTML
• What is HTTP
• What is HTTPS
• What is IDL
• What is IIOP
• What is impersonation
• What is initialization parameter
• What is ISO 3166
• What is ISV
• What is J2EE
• What is J2EE application
• What is J2EE component
• What is J2EE module
• What is J2EE product
• What is J2EE product provider
• What is J2EE server
• What is J2ME
• What is J2SE
• What is JAR
• What is Java 2 Platform, Enterprise Edition (J2EE)
• What is Java 2 Platform, Micro Edition (J2ME)
• What is Java 2 Platform, Standard Edition (J2SE)
• What is Java API for XML Processing (JAXP)
• What is Java API for XML Registries (JAXR)
• What is Java API for XML-based RPC (JAX-RPC)
• What is Java IDL
• What is Java Message Service (JMS)
• What is Java Naming and Directory Interface (JNDI)
• What is Java Secure Socket Extension (JSSE)
• What is Java Transaction API (JTA)
• What is Java Transaction Service (JTS)
• What is JavaBeans component
• What is JavaMail
• What is JavaServer Faces Technology
• What is JavaServer Faces conversion model
• What is JavaServer Faces event and listener model
• What is JavaServer Faces expression language
• What is JavaServer Faces navigation model
• What is JavaServer Faces UI component
• What is JavaServer Faces UI component class
• What is JavaServer Faces validation model
• What is JavaServer Pages (JSP)
• What is JavaServer Pages Standard Tag Library (JSTL)
• What is JAXR client
• What is JAXR provider
• What is JDBC
• What is JMS
• What is JMS administered object
• What is JMS application
• What is JMS client
• What is JMS provider