mulesoft Module 13 quiz 解析

Processing records Summary

• Use the For Each scope to process individual collection elements sequentially and return the original payload
• Use the Batch Job scope(EE only) for complex batch jobs
• • Created expecially for processing data sets
• • Splits messages into individual records and performs actions upon each record
• • Can have multiple batch steps and these can have filters
• • Record-level data is persisted across steps using variables
• • Can handle record level failures so the job is not aborted
• • The batch job returns an object with the result of the job for insight into which records were processed or failed

1. A Batch Job scope has three batch steps. An event processor in the second batch step throws an error because the input data is incomplete.

What is the default behavior of the batch job after the error is thrown?
A All processing of the batch job stops
B Event processing continus to the third batch step
C The second batch step is retried
D The first batch step is retried

答案：A

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2. Refer to the exhibit. What are the values of the counter and stepVar variables in the On Complete phase?

A counter:1, stepVar:31
B counter:1, stepVar:null
C counter:31, stepVar:null
D counter:31, stepVar:31

答案：B

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3. Refer to the exhibit. What is the output of the Logger component in the Batch Job?

A [.33]
[.667]
[1]
[1.333]
B [.333]
[1]
C [.333,1]
D [.333,.667,1,1.333]

答案：C，先过滤掉了整除2的2和4，再除以3

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4. Refer to the exhibit. The payload[1,2,3] is passed to the Batch Job scope. In Batch_Step_1, a variables named batchStepPayload is set to the current payload.

What is the value of the last log message after one batch job completes?

A [11,12,13]
B 30
C 13
D 10

答案：C，这里问的是log message

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5. Refer to the exhibits. The Set Payload component sets the payload to a Map object(not an Array).

The File Write operation writes out files based on this Map object.
How many files are written to the file system when the flow executes?

A 2
B 0
C 1
D 3

答案：B