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Salesforce Mule-Dev-201 Exam Syllabus Topics:

Section	Objectives
Topic 1: Error Handling and Debugging	- Debugging Mule applications - Error types and handling strategies
Topic 2: API-led Connectivity	- API layering approach (System, Process, Experience APIs) - API reusability and governance concepts
Topic 3: Security and Policies	- Secure configuration and credentials management - API security policies (OAuth, JWT, etc.)
Topic 4: Anypoint Platform Fundamentals	- Anypoint Platform components overview - Anypoint Studio usage and project structure
Topic 5: Mule Application Development	- Connectors and modules usage - Flow design and message processing
Topic 6: Deployment and Operations	- Deployment strategies (CloudHub, on-prem) - Monitoring and logging
Topic 7: DataWeave Transformations	- Data transformation and mapping strategies - DataWeave syntax and functions

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Salesforce Certified MuleSoft Developer Sample Questions (Q76-Q81):

NEW QUESTION # 76
A flow needs to combine and return data from two different data sources. It contains a Database SELECT operation followed by an HTTP Request operation.
What is the method to capture both payloads so the payload from the second request does not overwrite that from the first?

A. Put the Database SELECT operation inside a Message Enricher scope
B. Put the Database SELECT operation inside a Cache scope
C. Nothing, previous payloads are combined into the next payload
D. Save the payload from the Database SELECT operation to a variable

Answer: D

Explanation:
Correct answer is Save the payload from the Database SELECT operation to a variable Response from HTTP requestwill override the payload and hence response of database SELECT can be lost.
Best way to preserve is to assign payload of first operation to variable using TransformMessage.

NEW QUESTION # 77
Which one of them is NOT a flow in Mule?

A. subflow
B. async flow
C. async sub flow
D. sync flow

Answer: C

Explanation:
Correct answer is async sub flow. Rest are valid flows in Mule.
Sub flow is always synchronous.

NEW QUESTION # 78
What isthe purpose of the api:router element in APIkit?

A. Validates requests against RAML API specifications and routes them to API implementations
B. Validatesresponses returned from API requests and routes them back to the caller
C. Creates native connectors using a 3rd party Java library
D. Serves as an API implementation

Answer: A

Explanation:
The APIkit Router is a key message processor that validates requests against the provided definition, enriches messages (for example by adding default values to the messages) and routes requests to a particular flow.
Also, the Router raises errors messages if errors occurs while routing, validating or processing the user request.

NEW QUESTION # 79
Refer to the exhibits.

What DataWeave expression transforms the conductorIds array to the XML output?

A. 1. 1. trains:2. 2.conductorIds map ((engId, index) ->3. 3. train: {4. 4. engineerId: engId5. 5. }6. 6. )
B. 1. 1. trains:2. 2. {(3. 3. conductorIds map ((engId, index) ->4. 4. train: {5. 5. engineerId: engId6. 6. }7.
7. )8. 8. )}
C. 1. 1. { trains:2. 2.3. 3. conductorIds map ((engId, index) ->4. 4. train: {5. 5. engineerId: engId6. 6. }7. 7.
)8. 8. }
D. 1. 1. {( trains:2. 2.3. 3. conductorIds map ((engId, index) ->4. 4. train: {5. 5. engineerId: engId6. 6. }7.
7. )8. 8. )}

Answer: B

Explanation:
Points toremember:
* XML must have a root element.
* XML only allows one root element
* To avoid multiple root issues, you must create a root element for the XML output, whenever we transform output
* When mapping array elements (JSON or JAVA) to XML, wrap the mapoperations in {(..)}
-{ } are defining the object
( ) are transforming each element in the array as a key/value pair
* The transformation to XML would fail if the above mentioned considerations were not taken into account.
* Thus the transformation scriptdeclares a root element as trains and wraps the data in "{( )}".
Whenever you see such type of question, always look out for root element followed by {( )} wrapping map.
I call this a "Wrap The Map" scenario. Hope it would help you remember !

NEW QUESTION # 80
Refer to the exhibit.

What Database expression transforms theinput to the output?

Answer: D

Explanation:
This kind of questions are best solved with filtering technique. Key thing to note here is XML attributes are always access by @ notation. So in thisexample orderId can be accessed as @OrderId which makes option 3 and option 4 false. Now difference in optin and option 2 is in mapping of lineItemPrice. Correct syntax to format a String in Numbse is value.price as Number. Hence option 2 is correct

NEW QUESTION # 81
......

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