Define ABC of WCF?

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Ans: A – Address (Where): Hints us towards the direction of services, like URL (Uniform Resource Locator).
B – Bindings (How): This feature tells us how to find the services or using which protocols finds the services (SOAP, HTTP, TCT etc.)
C – Contracts (What): Contracts are an agreement between the consumer and the service providers that explains what parameters the service expects and what value it returns.

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