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单项选择题You have a secured Windows Communication Foundation (WCF) service. You need to track unsuccessful attempts to access the service. What should you do?（）

A、Set the authorization Manager Type attribute of the service Authorization behavior to Message.

B、Set the include Exception Detailsln Faults attribute of the service Debug behavior to true.

C、Set the Mode attribute of the security configuration element to Message.

D、Set the message Authentication AuditLevel attribute of the service Security Audit behavior to Failure.

  • D

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