Dear readers, these Web Services Interview Questions have been designed specially to get you acquainted with the nature of questions you may encounter during your interview for the subject of Web Services. As per my experience good interviewers hardly plan to ask any particular question during your interview, normally questions start with some basic concept of the subject and later they continue based on further discussion and what you answer −
Web services are open standard (XML, SOAP, HTTP etc.) based Web applications that interact with other web applications for the purpose of exchanging data. Web Services can convert your existing applications into Web-applications.
Following are the features of Web service −
- It is available over the Internet or private (intranet) networks.
- It uses a standardized XML messaging system.
- It is not tied to any one operating system or programming language.
- It is self-describing via a common XML grammar.
- It is discoverable via a simple find mechanism.
The basic web services platform is XML + HTTP. All the standard web services work using the following components −
- SOAP (Simple Object Access Protocol)
- UDDI (Universal Description, Discovery and Integration)
- WSDL (Web Services Description Language)
A web service enables communication among various applications by using open standards such as HTML, XML, WSDL, and SOAP.
You can build a Java-based web service on Solaris that is accessible from your Visual Basic program that runs on Windows.
You can also use C# to build new web services on Windows that can be invoked from your web application that is based on JavaServer Pages (JSP) and runs on Linux.
A web services takes the help of XML to tag the data, format the data.
A web service takes the help of SOAP to transfer a message.
A web service takes the help of WSDL to describe the availability of service.
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