Salesforce Mule-Dev-201 Prüfung - Mule-Dev-201 Tests

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Salesforce Mule-Dev-201 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Accessing and Modifying Mule Events10%- Enrich events using connectors
- Access and modify payload, attributes and variables
- Use DataWeave for transformation
Topic 2: Structuring Mule Applications10%- Manage error handling and scopes
- Use flows, subflows and flow references
- Organize configurations and properties
Topic 3: Deploying and Managing Applications10%- Monitor and manage applications
- Deploy to CloudHub and on-premises
- Explain deployment models
Topic 4: Security and Governance7%- Enforce governance standards
- Manage access and authentication
- Apply security policies
Topic 5: Designing APIs8%- Use REST API methods and resources
- Define parameters, responses and data types
- Define API specifications with RAML
Topic 6: Building API Implementations10%- Use connectors to integrate systems
- Implement APIs from specifications
- Implement routing and transformation logic
Topic 7: Testing and Debugging10%- Write unit tests with MUnit
- Use mocking and test doubles
- Debug applications using Anypoint Studio
Topic 8: Data Transformation with DataWeave10%- Write expressions and functions
- Handle different data formats
- Transform complex data structures
Topic 9: Error Handling and Transactions8%- Configure error handlers
- Implement transaction management
- Handle retries and dead-letter queues
Topic 10: Creating Application Networks7%- Describe Anypoint Platform components
- Identify application network concepts
- Explain API-led connectivity principles

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Salesforce Certified MuleSoft Developer Mule-Dev-201 Prüfungsfragen mit Lösungen (Q148-Q153):

148. Frage
Which file is used to define the interface contract to invoke a web service implemented as a SOAP service

Antwort: A

Begründung:
WSDL is used to define the contract in case of SOAP . RAML/OAS is used to REST services


149. Frage
Refer to exhibits.

What message should be added to Logger component so that logger prints "The city is Pune" (Double quote should not be part of logged message)?

Antwort: D

Begründung:
Correct answer is The city is #[payload.City]
Answer can get confused with the option #["The city is" ++ payload.City] But note that this option will not print the space between is and city name. This will print The city isPune


150. Frage
Refer to the exhibits.

What payload and variable are logged at the end of the main flow?

Antwort: C

Begründung:
Correctanswer is [[5, 10, 15, 20], 5]
Key thing to note here is that any changes made to payload in for each loop are not available outside for each scope where as variable value updated in for each loop is visible out side for each loop too.
In this example , sequence can be described as follows
1) Payload is set to the value [5, 10, 15, 20]
2) Variable is set to the value of 1
3) For each loop is executed four times and in each loop payload value is updated to append "Req" and variable is count is increased by 1
4) Once control comes out of for each , payload changes made within for each are not visible. Hence payload at this point of time is equal to payload available before entering for each loop which was [5, 10, 15, 20].
Similarly variable value updated in for each loop is also available outside hence variable value is 5 as it was updated in loop.
5) Hence correct answer is [[5, 10, 15, 20], 5]
For Each Scope
The For Each scope splits a payload into elements and processes them one by one through the components that you place in the scope. It is similar to a for-each/for loop code block in most programming languages and can process any collection, including lists and arrays. The collection can be any supported content type, such as application/json, application/java, or application/xml.
General considerations about the For Each scope:
By default, For Each tries to split the payload. If the payload is a simple Java collection, the For Each scope can split it without any configuration. The payload inside the For Each scope is each of the split elements.
Attributes within the original message are ignored because they are related to the entire message.
For Each does not modify the current payload. The output payload is the same as the input.
For non-Java collections, such as XML or JSON, use a DataWeave expression to split data. Use the Collection field for this purpose.


151. Frage
Refer to the exhibit.

What can be added to the flow to persist data across different flow executions?

Antwort: C

Begründung:
An object store is a facility for storing objects in or across Mule applications. Mule runtime engine (Mule) uses object stores to persist data for eventual retrieval. Internally, Mule uses objectstores in various filters, routers, and other message processors that need to store states between messages.
Object stores are available in all deployment targets. If you deploy your application to CloudHub, you can also use Object Store V2.
Correct answer is Key/value pair in Object store
MuleSoft Documentation reference : https://docs.mulesoft.com/mule-runtime/4.3/mule-object-stores#use- cases


152. Frage
Refer to the exhibits. The main flow contains an HTTP Request in the middle of the flow. The HTTP Listeners and HTTP Requestuse default configurations.
A web client submits a request to the main flow's HTTP Listener that includes query parameters for the pedigree of the piano.
What values are accessible to the Logger component at the end of the main flow?

Antwort: A

Begründung:
In this case as outbound call is made using HTTP: POST /child , all attributes will be replaced by this invocation. Hence query parameter will not be accessible at logger. Hence correct answer is option 2


153. Frage
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