Multiple choice technology web technology

Which is the default Message Exchange Pattern (MEP) ?

  1. OneWay

  2. Request/Response

  3. Duplex

  4. Request

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

WCF's default Message Exchange Pattern is Request/Response. Every operation call expects a response from the service, even if it's just an empty acknowledgment. To implement fire-and-forget messaging without waiting for a response, the operation must be explicitly marked with [OperationContract(IsOneWay=true)].