What is the transport protocol you use to call a Web service?

Answer1:
SOAP. Transport Protocols: It is essential for the acceptance of Web Services that they are based on established Internet infrastructure. This in fact imposes the usage of of the HTTP, SMTP and FTP protocols based on the TCP/IP family of transports. Messaging Protocol: The format of messages exchanged between Web Services clients and Web Services should be vendor neutral and should not carry details about the technology used to implement the service. Also, the message format should allow for extensions and different bindings to specific transport protocols. SOAP and ebXML Transport are specifications which fulfill these requirements. We expect that the W3C XML Protocol Working Group defines a successor standard.

Answer2:
SOAP is not the transport protocol. SOAP is the data encapsulation protocol that is used but the transport protocol is fairly unlimited. Generally HTTP is the most common transport protocol used though you could conceivanly use things like SMTP or any others. SOAP is not dependant on any single transport protocol or OS, it is a syntactical and logical definition, not a transport protocol.

 

True or False: A Web service can only be written in .NET.?

False.

 

What does WSDL stand for?

Web Services Description Language

 

Where on the Internet would you look for Web services?

UDDI repositaries like uddi.microsoft.com, IBM UDDI node, UDDI Registries in Google Directory, enthusiast sites like XMethods.net.

 

What tags do you need to add within the asp:datagrid tags to bind columns manually?

Column tag and an ASP:databound tag.

 

How is a property designated as read-only?

In VB.NET:
Public ReadOnly Property PropertyName As ReturnType
Get ‘Your Property Implementation goes in here
End Get
End Property

in C#
public returntype PropertyName
{
get{
//property implementation goes here
}
// Do not write the set implementation
}

 

Which control would you use if you needed to make sure the values in two different controls matched?

Use the CompareValidator control to compare the values of 2 different controls.

 

True or False: To test a Web service you must create a windows application or Web application to consume this service?

False.

 

How many classes can a single .NET DLL contain?

Unlimited.

 

Describe session handling in a webfarm, how does it work and what are the limits?

Set the sessionState mode in the web.config file to “StateServer”.
StateServer mode uses an out-of-process Windows NT Server to store state information.
It solves the session state loss problem in InProc mode.
Allows a webfarm to store session on a central server.
It provides a Single point of failure at the State Server.

Follow these simple steps:
- In a web farm, make sure you have the same in all your web servers.
- Also, make sure your objects are serializable.
- For session state to be maintained across different web servers in the web farm, the Application Path of the website in the IIS Metabase should be identical in all the web servers in the web farm.