Computer Knowledge

Java Enterprise and Web Technologies

2,279 Questions

Java enterprise and web technologies questions focus on J2EE architecture, web services like SOAP, and servlet functionalities. These topics frequently appear in IT officer and specialist scale examinations. Regular practice ensures familiarity with enterprise application components.

HttpServlet methodsSOAP and web servicesEJB architecture rolesJ2EE componentsJSP servlet callingUDDI concepts

Java Enterprise and Web Technologies Questions

Multiple choice

With which of the following set of technologies, when a user clicks a button, one can use JavaScript and DHTML to immediately update the user interface and spawn an asynchronous request to the server to perform an update or query a database?

  1. Java applet

  2. Ajax

  3. Filter

  4. OrbixWeb

  5. Event
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

With Ajax, when a user clicks a button, one can use java script and DHTML to immediately update the user interface and spawn an asynchronous request to the server to perform an update or query a database.

Multiple choice

Which of the following technologies for distributed objects enables objects to interact regardless of whether they are written in the Java programming language or another language?

  1. Java IDL

  2. Java applet

  3. Java 2 ORB

  4. Java bean

  5. AlarmPresentation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Java IDL is a technology for distributed objects, enables objects to interact regardless of whether they are written in the java programming language or another language?

Multiple choice

In which of the following modes of transaction management provided by EJB, if the client attempts to use the bean from within a transaction, the client's transaction will remain suspended until the bean completes its operations?

  1. TX_SUPPORTS

  2. TX_NOT_SUPPORTED

  3. TX_BEAN_MANAGED

  4. Transaction

  5. Optimized method invocation
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In this mode of transaction management provided by EJB, if the client attempts to use the bean from within a transaction, the client's transaction will remain suspended until the bean completes its operation.