mulesoft Module 11 quiz解析

1. A Mule application has a main flow and a combineNames flow. In the main flow, a variable named fullName is set to the object {firstNmae:“Max”,lastName:“Mule”}.

What is valid DataWeave code to call the combineNames flow with the input object stored in the fullName
variable?

A #[dw::Flow::lookup(“combineNames”,vars.fullName)]
B #[lookup(“combineNames”,vars.fullName)]
C #[dw::Runtime::lookup(“combineNames”,vars.fullName)]
D #[combineNames,vars.fullName]
E #[lookup(combineNames(vars.fullName))]

答案：B

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2. Refer to the exhibit. What is valid DataWeave code to transform the input JSON payload to the output XML payload
   
   A
   
   B
   
   C
   
   D
   

答案：B，注意firstName和lastName是作为employee的行内属性

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3. What is the correct way to format the decimal 20.3844 as a string to two decimal places?

A 20.3844 as :string{format:“.0#”}
B 20.3844 as String{format:“.0#”}
C 20.3844 as :string{format=“.0#”}
D 20.3844 as String as format:“.0#”
E 20.3844 as :string as format:“.0#”
F 20.3844 as String{format=“.0#”}

答案：B

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4. Whata DataWeave 2.0 type can be used as input to a map operation?

A String
B Map
C Object
D Array
E Key

答案：D，和js的用法一样

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5. Refer to the exhibit. An event payload contains an unordered array of flight objects.where every object has a price key and a toAirport key.

What is valid DataWeave code to return flights with price under 500, grouped by toAirport in ascending order, with the lowest price first?

A payload groupBy $.toAirport filter $.price < 500 orderBy $.price
B payload groupBy $.toAirport filter $.price > 500 orderBy $.price
C payload filter $.price < 500 orderBy $.price groupBy $.toAirport
D payload filter $.price > 500 orderBy $.price groupBy $.toAirport

答案：C