Hosting WCF service in local IIS using Visual Studio 2013 is surprisingly easy. Let us assume you have created a WCF Service. Now to publish it in local IIS right click on project......
What is a fault contract in WCF? | WCF Interview Question
Normally, by default, when some exception occurs at a WCF service level, it will not expose as it is to client. Reason is that WCF exception is a CLR exception and it doesn’t make......
What are the different ways to generate proxy in WCF? | WCF Interview Question
Generating proxy using Visual Studio is simple and straight forward. Right click References and choose “Add Service Reference”. Provide base address of the service on “Add Service......
What is a Service Proxy in Windows Communication Foundation? | WCF Interview Question
A service proxy or simply proxy in WCF enables application(s) to interact with WCF Service by sending and receiving messages. It’s basically a class that encapsulates service details......
What is mexHttpBinding in WCF? | WCF Interview Question
In order to generate proxy, we need service metadata and mexHttpBinding returns service metadata. If we look into our configuration file, service will have an endpoint with mexHttpBinding......
What are the different ways to expose WCF Metadata? | WCF Interview Question
By default, WCF doesn’t expose metadata. We can expose it by choosing one of the following ways:1. In configuration file, by enabling metadata exchange as follows: ......
What Message Exchange Patterns supported by WCF? | WCF Interview Question
Request/Response One Way Duplex Request/Response It’s the default pattern. In this pattern, a response message will always be generated to consumer when the......
What are Contracts in WCF? | WCF Interview Question
A Contract is basically an agreement between the two parties i.e. Service and Client. In WCF, Contracts can be categorized as behavioral or structural. Behavioral Contracts define......
What are the hosting options for WCF Services? | WCF Interview Question
For a service to host, we need at least a managed process, a ServiceHost instance and an Endpoint configured. Possible approaches for hosting a service are:1. Hosting......
What is the difference between WCF and ASMX Web services? | WCF Interview Question
The basic difference is that ASMX web service is designed to send and receive messages using SOAP over HTTP only. While WCF service can exchange messages using any format (SOAP is......
What are the core components of WCF Service? | WCF Interview Question
A WCF service has the following core components. Service Class: A service class implementing in any CLR-based language and expose at least one method. Hosting Environment:......
What is WCF throttling? | WCF Interview Question
WCF throttling enables us to regulate the maximum number of WCF instances, concurrent calls and concurrent sessions. Basic purpose is to control our WCF service performance by using......
What are the different ways to handle concurrency in WCF? | WCF Interview Question
There are three different ways to handle concurrency in WCF that are:a) Singleb) Multiplec) ReentrantSingle: means at a given......
What are the different WCF Instance Activation Methods available? | WCF Interview Question
WCF supports three different types of Instance Activation methods:a) Per Callb) Per Sessionc) Singlet......
Breifly explain Automatic Activation in WCF? | WCF Interview Question
Automatic activation means service starts and serves the request when a message request is received, but service doesn’t need to be running in advance.There are few scenarios in......
How to create proxy for Non-WCF Services? | WCF Interview Question
In case of Non-WCF Services, we can create proxy by either using Visual Studio or svcUtil.exe tool by pointing to WSDL of the non-WCF service. In this scenario, we can’t create proxy......
Difference between using ChannelFactory and Proxies in WCF? | WCF Interview Question
A ChannelFactory creates a kind of Channel used by clients to communicate with service endpoints. If we have control over Server and Client, then ChannelFactory is a good option......
Creating WCF RESTful Service | WCF RESTful Guide | WCF Tutorial
A definition from Wikipedia, "Representational State Transfer (REST) is an architectural style that specifies constraints, such as the uniform interface, that if applied to a web......
Brief about WCF Callback Service Operation? | WCF Interview Question | WCF Tutorial | WCF Programmer Guide
WCF also provides the service to call the client. In which, service will act as client and client will act as service. HTTP protocols are connectionless nature, so it is not supported......
Brief about WCF One-Way Operation | WCF Interview Question | WCF Tutorial | WCF Programmer Guide
In One-Way operation mode, client will send a request to the server and does not care whether it is success or failure of service execution. There is no return from the server......
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