WCF Interview Question and Answers
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What are the main components of WCF? |
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The main components of WCF are
- Service class
- Hosting environment
- End point
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| 2. |
What are the various ways of hosting a WCF service? |
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There are three major ways to host a WCF service
- Self hosting the service in his own application domain.
- Host in application domain or process provided by IIS server.
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Host in Application domain and process provided by WAS (Windows Activation Service) Server.
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| 3. |
What are the core security features that WCF addresses? |
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There are four core security features that WCF addresses- Confidentiality: This feature ensures that the information does not go in wrong hands when it travels from the sender to the receiver.
- Integrity: This feature ensures that the receiver of the message gets the same information that the sender sends without any data tampering.
- Authentication: This feature verifies who the sender is and who the receiver is.
- Authorization: This feature verifies whether the user is authorized to perform the action they are requesting from the application.
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| 4. |
What is WCF? |
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Windows Communication Foundation (WCF) is an SDK for developing and deploying services on Windows. WCF provides a runtime environment for services, enabling you to expose CLR types as services, and to consume other services as CLR types. WCF is a unification technology which unities the following technologies
NET remoting
MSMQ
Web services
COM+.
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What is the difference between WCF and Web Service? |
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Web Services- It Can be accessed only over HTTP
- It works in stateless environment
WCF is flexible because its services can be hosted in different types of applications. The following lists several common scenarios for hosting WCF services-
IIS
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WAS
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Self-hosting
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Managed Windows Service
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