Mule-Dev-201 Vorbereitung & Mule-Dev-201 Testing Engine

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Salesforce Mule-Dev-201 Exam Syllabus Topics:

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

>> Mule-Dev-201 Vorbereitung <<

Mule-Dev-201 Testing Engine - Mule-Dev-201 Prüfungsunterlagen

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Salesforce Certified MuleSoft Developer Mule-Dev-201 Prüfungsfragen mit Lösungen (Q94-Q99):

94. Frage
How does APIkit determine the number of flows to generate from a RAML specification?

A. Creates a separate flow for each resource that contains child resources
B. Creates a separate flow for each resource
C. Creates a separate flow for each HTTP method
D. Creates a separate flow for each response status code

Antwort: C

Begründung:
APIKIt Creates a separate flow for each HTTP method

95. Frage
Refer to the exhibits. Client sends the request to ClientRequestFlow which calls ShippingFlow using HTTP Request activity.
During E2E testing it is found that that HTTP:METHOD_NOT_ALLOWED error is thrown whenever client sends request to this flow.
What attribute you would change in ClientRequestFlow to make this implementation work successfully?

A. Change the path attribute value to "/api/ship"
B. Change the method attribute value to "*''
C. Change the allowed method attributes value to "POST"
D. Change the protocol attribute value to "HTTPS"

Antwort: C

Begründung:
Correct answer is Change the method attributes value to "POST".
It can be fixed in either of the two ways as below.
1) Changing method attribute to POST in ClientRequestFlow
2) Setting allowedMethods as PUT in ShippingFlow (but doesn't fit as question mentions about changing ClientRequestFlow)

96. Frage
Refer to the exhibits.

The Validation component in the private flow throws an error. What response message is returnedto a client request to the main flow's HTTP Listener?

A. Error - main flow
B. Validation Error
C. Error - private flow
D. Success - main flow

Antwort: A

Begründung:
Error in validation component will get processed by Processer level On Error Propagate block and thenerror will be rethrown which will get processed by flow level error handler which will set payload to "Error- main flow". Hence correct answer is Error - main flow
1) Request is received by HTTP listener
2) Try scope gets executed
3) The validator component in the Try scope creates an Error Object because the payload is not null.
4) The On Error Propagate handles the error. The payload is set to "Error - Try scope"
6) "Error - Try scope" is returned to the 'On Error Continue' block. Main flow execution stops. Payload is set to "Error - main flow"
7) "Error - main flow" is returned to the requestor in the body of the HTTP request. HTTP Status Code: 200
---------------------------------------------------------------------------------------------------------------------------------------- Reference Diagram though not exactly same, conditions are similar. They will help you answer any new question on error handling in real exam:
Timeline Description automatically generated

https://docs.mulesoft.com/mule-runtime/4.3/on-error-scope-concept#on-error-continue

97. Frage
Refer to the exhibits.

A web client submits a request to theHTTP Listener and the HTTP Request throws an error.
What payload and status code are returned to the web client?
Refer to the exhibits. A web client submits a request to the HTTP Listener and the HTTP Request throws an error.
What payload and status code are returned to the web client?

A. Response body: "Error" Default response status code: 200
B. Responsebody: "Success - End" Default response status code: 200
C. Error response body: error, description Default error response status code: 500
D. Response body: "Success - Begin* Default response status code: 200

Antwort: A

Begründung:
Response body: "Error" Default response status code: 200.
----------------------------------------------------------------------------------------------------------------------------------------
1) Payload is successfully set to "Success - Started Flow"
2) When HTTP Request throws an error, execution halts
#[error.description] = "ABC"
#[error.errorType] = "XYZ"
3) The On Error Continue scope handles the error. When On Error Continue scope is invoked, all the processors in error block are executed and success response is sent back to the client with payload which is set in error flow. In this case payload is set to "Error" value in error block.
4) "Error" is returned to the requestor in the body of the HTTP request with HTTP Status Code: 200 as On error continue always sendssuccess error code.
Reference Diagram:
Timeline Description automatically generated with medium confidence

98. Frage
A Mule application's HTTP Listener is configured with the HTTP protocol. The HTTP listeners port attribute is configured with a property placeholder named http.port. The mule application sets the http.port property placeholder's value to 9090 The Mule application is deployed to CloudHub without setting any properties in the Runtime manager Properties tab and a logmessage reports the status of the HTTP listener after the Mule application deployment completes.
After the mule applications is deployed, what information is reported in the worker logs related to the port on which the Mule application's HTTP Listener listens?

A. The HTTP Listener is listening on port 80
B. The HTTP Listener failed to bind to the port and is not listening for connections
C. The HTTP Listener is listening on port 8081
D. The HTTP Listener is listening on port 9090

Antwort: C

Begründung:
Cloudhub exposeservices on port 8081 and override value in http.port with this one .
Sample log in Runtime Manager is below
21:15:53.148 08/08/2021 Worker-0 ArtifactDeployer.start.01 INFO
Listening for connections on 'http://0.0.0.0:8081'

99. Frage
......

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Mule-Dev-201 Testing Engine: https://www.zertfragen.com/Mule-Dev-201_prufung.html

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