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| Question |
what is the difference between weblogic and
websphere,jboss,tomcat? |
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Answer Posted By |
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Question Submitted By :: Guest |
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I also faced this Question!! |
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| Answer | well.....weblogic acts as application server,wheras tomcat
act as webserver.......
weblogic supports ejb...wheras tomcat doesn't...
WebServer is supposed to support HTTP and/or FTP, SSL
HTTPS, etc protocols..Doesnt have to do anything with Java.
An Appserver is an extension of WebServer, which basically
should support all the technologies in J2EE spec
(JavaServlets, JSP, JMS ...) ..
coming to websphere and jboss both belongs to application
server......  |
| Amit....
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| Question |
How to Identify the first string and last string in a HTML
page (source code)? |
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Answer Posted By |
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Question Submitted By :: Ashok J |
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I also faced this Question!! |
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| Answer | <html>
</html> |
| Rafiq
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| Question |
actually, i have integrated oscommerce and forum in my
joomla website.And have made common login to all of
these.when i register a new user, it'll get registered
successfully.But when i try to login from the frontend and
also from the forum ,it is displaying the msg "you are not
authorised to view this resource". but logging in
successfully through oscommerce.why it is so? |
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Answer Posted By |
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Question Submitted By :: Manjula |
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I also faced this Question!! |
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| Answer | its not the interview question.its the problem which i m
facing in my work.If someone knows the answer, please
forward your answer to me.
thankz in advance. |
| Manjula
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| Question |
How do I provide information to the Web Service when the
information is required as a SOAP Header? |
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Answer Posted By |
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Question Submitted By :: Swapna |
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I also faced this Question!! |
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| Answer | The key here is the Web Service proxy you created using
wsdl.exe or through Visual Studio .NET's Add Web Reference
menu option. If you happen to download a WSDL file for a
Web Service that requires a SOAP header, .NET will create a
SoapHeader class in the proxy source file. Using the
previous example:
public class Service1 :
System.Web.Services.Protocols.SoapHttpClientProtocol
{
public AuthToken AuthTokenValue;
[System.Xml.Serialization.XmlRootAttribute
(Namespace="http://tempuri.org/", IsNullable=false)]
public class AuthToken : SoapHeader {
public string Token; }}
In this case, when you create an instance of the proxy in
your main application file, you'll also create an instance
of the AuthToken class and assign the string:
Service1 objSvc = new Service1();
processingobjSvc.AuthTokenValue = new AuthToken();
objSvc.AuthTokenValue.Token = <ACTUAL token value>;
Web Servicestring strResult =
objSvc.MyBillableWebMethod();
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| Swapna
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| Question |
What is WSDL? |
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Answer Posted By |
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Question Submitted By :: Swapna |
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I also faced this Question!! |
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| Answer | WSDL is the Web Service Description Language, and it is
implemented as a specific XML vocabulary. While it's very
much more complex than what can be described here, there
are two important aspects to WSDL with which you should be
aware.
First, WSDL provides instructions to consumers of Web
Services to describe the layout and contents of the SOAP
packets the Web Service intends to issue. It's an
interface description document, of sorts. And second, it
isn't intended that you read and interpret the WSDL.
Rather, WSDL should be processed by machine, typically to
generate proxy source code (.NET) or create dynamic proxies
on the fly (the SOAP Toolkit or Web Service Behavior). |
| Swapna
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| Answer | Web Service Description language
WSDL is an XML format for describing network services as a
set of endpoints operating on messages containing either
document-oriented or procedure-oriented information. |
| Kanu
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| Question |
How does dynamic discovery work? |
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Answer Posted By |
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Question Submitted By :: Swapna |
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I also faced this Question!! |
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| Answer | ASP.NET maps the file name extension VSDISCO to an HTTP
handler that scans the host directory and subdirectories
for ASMX and DISCO files and returns a dynamically
generated DISCO document.
A client who requests a VSDISCO file gets back what appears
to be a static DISCO document.
Note that VSDISCO files are disabled in the release version
of ASP.NET. You can reenable them by uncommenting the
line in the <HTTPHANDLERS>section of Machine.config that
maps *.vsdisco to
System.Web.Services.Discovery.DiscoveryRequestHandler and
granting the ASPNET user account permission to read the
IIS metabase. However, Microsoft is actively discouraging
the use of VSDISCO files because they could represent a
threat to Web server security.
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| Swapna
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| Question |
What are VSDISCO files? |
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Answer Posted By |
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Question Submitted By :: Swapna |
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I also faced this Question!! |
© ALL Interview .com |
| Answer | VSDISCO files are DISCO files that support dynamic
discovery of Web services. If you place the following
VSDISCO file in a directory on your Web server, for
example, it returns references to all ASMX and DISCO
files in the host directory and any subdirectories not
noted in <EXCLUDE>elements:
<DYNAMICDISCOVERY
xmlns="urn:schemas-
dynamicdiscovery:disco.2000-03-17">
<EXCLUDE path="_vti_cnf" />
<EXCLUDE path="_vti_pvt" />
<EXCLUDE path="_vti_log" />
<EXCLUDE path="_vti_script" />
<EXCLUDE path="_vti_txt" />
</DYNAMICDISCOVERY>
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| Swapna
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| Answer | VSDISCO files are DISCO files that enable dynamic discovery
of Web Services. ASP.NET links the VSDISCO to a HTTP
handler that scans the host directory and subdirectories
for ASMX and DISCO files and returns a dynamically
generated DISCO document. A client who requests a VSDISCO
file gets back what appears to be a static DISCO document |
| Guest
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| Question |
What are the various ways of accessing a web service? |
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Answer Posted By |
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Question Submitted By :: Swapna |
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I also faced this Question!! |
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| Answer | 1. Asynchronous Call
Application can make a call to the Webservice and then
continue to do whatever it wants to do. When the service is
ready it will notify the application. Application can use
BEGIN and END method to make asynchronous call to the web
method. We can use either a WaitHandle or a Delegate object
when making asynchronous call.
The WaitHandle class share resources between several
objects. It provides several methods which will wait for
the resources to become available.
The easiest and most powerful way to implement an
asynchronous call is using a delegate object. A delegate
object wraps up a callback function. The idea is to pass a
method in the invocation of the web method. When the web
method has finished it will call this callback function to
process the result.
2. Synchronous Call
Application has to wait until execution has completed.
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| Swapna
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| Question |
True or False: To test a Web service you must create a
windows application or Web application to consume this
service? |
Rank |
Answer Posted By |
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Question Submitted By :: Swapna |
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I also faced this Question!! |
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| Answer | False. |
| Swapna
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| Answer | False but not always |
| Ashish
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| Answer | false |
| Shivani
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| Question |
What is the transport protocol you use to call a Web
service SOAP? |
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Answer Posted By |
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Question Submitted By :: Swapna |
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I also faced this Question!! |
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| Answer | HTTP with SOAP. |
| Swapna
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| Question |
Can you give an example of when it would be appropriate to
use a web service as opposed to non-serviced .NET component? |
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Answer Posted By |
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Question Submitted By :: Swapna |
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I also faced this Question!! |
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| Answer | Web service is one of main component in Service Oriented
Architecture. You could use web services when your clients
and servers are running on different networks and also
different platforms.
This provides a loosely coupled system. And also if the
client is behind the firewall it would be easy to use web
service since it runs on port 80 (by default) instead of
having some thing else in Service Oriented Architecture
applications. |
| Swapna
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