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Top 15 Java Web Service Interview Questions

Java Web Services Questions and Answers
Web Services interview questions are part of J2EE interviews for jobs which are looking for some experience in Java web services Space. Most of the Web services questions come from two different ways of implementing Web Services like SOAP and REST. SOAP is standard and mature way of calling Web Services which uses XML while REST is a new way of implementing Web Services which is based on HTTP protocol. In fact REST Web Service interview questions are getting more and more popular on the web services interviews in Java, So if you are going for any Java J2EE interview which require some web service experience, be prepared with both SOAP and REST Web services questions.

Following is a list of Java web services interview questions that I have prepared for practice. Answers to these web services questions can be easily found in many places on the Internet and I will update this list whenever I have new web services interview questions. 

If you guys find any interesting tricky or tough Java web service questions asked in Interviews then please share with us.

Frequently asked Java web services interview questions

Here is my list of frequently asked interview questions on the Java web service in any Core Java Interview. As SOAP is a standard way of making web service call that uses XML, good knowledge of XML and Java is expected from you and Interviewer may ask some XML interview questions as well.

Top 15 Java Web Service Interview Questions

1. What is Web Service?

2. What is SOAP?

3. What is REST Web Service?

4. What is the difference between REST Web Service and SOAP web service? (answer)

5. Can a Java client talk to C++ Server using Web Service?

6. What is WSDL?

7. What is UDDI?

8. Does Web Service call is synchronous or asynchronous?

9. How do you handle errors in Web Service call?

10. What is JAX-RPC?

11. Have you worked on Spring and Web services?

12. What is WebServiceTemplate etc?

13. What is the difference between RMI and Web Services?

14. What is gRPC? What benefits it offers over other Web service Alternatives?

15. What is Microservice Architecture?

16.  What is the difference between REST and Microservice?

17. What is the difference between the POST and PUT on REST Web Service? (answer)

18. What is the purpose of different HTTP methods in REST? (answer)

19. How do you test REST web services? (answer)

That's all about some common Java Web Service Interview Questions you can practice before interviews. This list is not complete and I have started collecting more and more web services questions as part of my preparation. I will be updating this list whenever I have good web services questions from Java interviews.

Java Interview Questions from Java67 Blog


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    http://www.wiziq.com/course/1779-core-and-advance-java-concepts i was looking for such information on advance and core java and your information helped me a lot. I really like that you are providing such information.

  2. I'd certainly like to say thanks for all this quite valuable information.

  3. Excellent job by java67.
    Please provide the answers for webservices

  4. Great questions, but how do you implement Security in REST architecture?

  5. how do you handle session in REST most asked question


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