mulesoft Module 10 quiz 解析

概述(重中之重)

An error is handled by the first error scope with a matching condition

• On Error Propagate rethrows the error up the execution chain
• On Error Continue handles the error and then continues execution of the parent flow

这章的题是错的最多的一章，一定好好理解一下上面这段。

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1. How can an error scope be configured to catch all errors in the HTTP namespace?

A Type:
When:#[error.errorType.namespace==“HTTP”]

B Type:HTTP
WHEN:

C Type:
When:#[contains"HTTP"]

D Type:HTTP*
When:

答案：A，类型应该是不受限制的

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2. Refer to the exhibits. The main flow has an On Error Continue scope with type set to HTTP:NOT_FOUND. The Mule application configure globalErrorHandler as its default error handler.

A web client posts a request to the HTTP Listener.The Transform Message component then throws a MULE:EXPRESSION error trying to convert the payload to application/xml.
What response message is returned to the web client?

A “HTTP:NOT_FOUND error”
B “Global Error Handler”
C “MAIN”
D The MULE:EXPRESSION error’s message

答案：D

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3. Refer to the exhibis. The main flow has an On Error Continue scope. In the Configuration global element, default error handler is set to globalErrorHandler.

A web client makes an HTTP GET request to the flow’s HTTP Listener. The Is number validator then throws an error with message “Validate - Payload is an Integer”.
What response message is returned to the web client?

A Success - End main flow
B Error - main flow
C Global Error Handler
D Validate - Payload is an Integer
E Success - Begin main flow

答案：B

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4. Refer to the exhibits. The main flow has an On Error Propagate scope. In the Configuration global element, default error handler is set to globalErrorHandler.

A web client makes an HTTP GET request to the flow’s HTTP Listener. The Is number validator then throws an error with message “Validate - Payload is an Integer”.
What response message is returned to the web client?

A Success - Begin main flow
B Error - main flow
C Validate - Payload is an Integer
D Success - End main flow
E Global Error Handler

答案：C

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5. Refer to the exhibits. The main flow has an On Error Continue scope and the private flow has an On Error Propagate scope.

A web client makes an HTTP GET request to the HTTP Listener. The Is number validator in the private flow then throws an error with message “Validate - Payload is an Integer”
What response message is returned to the web client?

A Error - main flow
B Success - private flow
C Validate - Payload is Integer
D Success - main flow
E Error - private flow

答案：A

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6. Refer to the exhibis. The private flow has an On Error Propagate scope. In the Configuration global element, default error handler is set to globalErrorHandler.

A web client makes an HTTP GET request to the flow’s HTTP Listener. The Is number validator in the private flow then throws an error with message “Validata - Payload is an Integer”.
What response message is returned to the web client?

A globalErrorHandler
B Success - mainFlow
C Error - privateFlow
D Error - privateFlow

答案：A