Salesforce Mule-Dev-201 Certification Exam Sample Questions

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Salesforce Mule-Dev-201 Sample Questions:

01. An application was scaffolded with APIkit from a RAML specification that declares GET /orders, and the generated flows and handlers are unchanged. A developer renames the flow APIkit generated for GET /orders to getOrders and changes nothing else.
A client sends GET /api/orders. What does it receive?
a) 200 with the example the RAML declares, as before
b) 501 with the body {"message": "Not implemented"}
c) 404 with the body {"message": "Resource not found"}
d) 500 with the error description as the body
 
02. A flow triggered by an HTTP Listener has an Error Handler containing a single On Error Continue whose type is ANY.
Which error does this scope never handle?
a) A MULE:RETRY_EXHAUSTED error raised by an Until Successful scope in the flow
b) A MULE:COMPOSITE_ROUTING error raised by a Scatter-Gather in the flow
c) A MULE:EXPRESSION error raised by a Transform Message script in the flow
d) A SOURCE_RESPONSE_SEND error raised while sending the response
 
03. The registered properties file config.yaml sets api.host to orders.example.com. A Logger must print the placeholder text ${api.host} itself, not the value it resolves to.
Which value of the Logger's message attribute produces that text?
a) \${api.host}
b) #[p('api.host')]
c) #['${api.host}']
d) ${api.host}
 
04. A RAML 1.0 query parameter named since must hold a calendar date such as 2024-03-15, with no time of day and no time zone.
Which built-in type should it declare?
a) datetime
b) datetime-only
c) date-only
d) time-only
 
05. A flow sets vars.tag to "pre-job" and passes the payload [1, 2, 3] to a Batch Job. In the first Batch Step, a processor sets tag to "odd" for record 1 and to "other" for record 2, and does nothing to tag for record 3. The second Batch Step logs #[vars.tag] for each record.
What does the second step log for records 1, 2 and 3?
a) "odd", "other", "other"
b) "pre-job", "pre-job", "pre-job"
c) "odd", "other", null
d) "odd", "other", "pre-job"
 
06. A DataWeave script reads orderId from the payload. If that key is missing, the script must stop with an error instead of carrying on with a substitute value.
Which expression meets this requirement?
a) payload.orderId!
b) payload.orderId default ""
c) payload.*orderId
d) payload.orderId?
 
07. An organization already exposes its CRM customer records and its ERP order records through separate APIs. A new API must combine customer and order data to calculate each customer's order status, and that logic must not depend on any particular source system or on the web and mobile channels that will display it.
In API-led connectivity, which kind of API should hold this logic?
a) A System API
b) An Experience API
c) A Process API
d) An API proxy
 
08. A JSON response built in DataWeave must leave out every null value, both object fields and array elements, at any depth.
Which output directive achieves this?
a) output application/json skipNullOn="arrays"
b) output application/json skipNullOn="everywhere"
c) output application/xml writeNilOnNull=true
d) output application/json indent=false
 
09. A flow runs these processors in order:
  1. Set Variable status to "new"
  2. A Try scope containing Set Variable status to "sending", then an HTTP Request that raises HTTP:CONNECTIVITY, then Set Variable status to "sent"
  3. A Logger with the message #["$(vars.status): $(payload)"]
The Try scope's On Error Continue sets status to "queued" and the payload to "retry later".
What does the Logger write?
a) new: retry later
b) sent: retry later
c) sending: retry later
d) queued: retry later
 
10. A RAML specification declares the query parameters status and page and the header x-tenant for GET /orders. The API is implemented with APIkit. The team wants any request carrying a query parameter name or header name the specification does not declare to be rejected.
Which two settings achieve this?
(Choose 2 answers.)
a) headersStrictValidation="true" on the APIkit configuration
b) queryParamsStrictValidation="true" on the APIkit configuration
c) required: true on every query parameter and header the RAML declares
d) disableValidations="true" on the APIkit configuration

Answers:

Question: 01
Answer: b		 Question: 02
Answer: d		 Question: 03
Answer: a		 Question: 04
Answer: c		 Question: 05
Answer: d
Question: 06
Answer: a		 Question: 07
Answer: c		 Question: 08
Answer: b		 Question: 09
Answer: d		 Question: 10
Answer: a, b

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