Mule-Dev-301 Studienmaterialien: Salesforce Certified MuleSoft Developer II - Mule-Dev-301 Torrent Prüfung & Mule-Dev-301 wirkliche Prüfung

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Salesforce Mule-Dev-301 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Implement Performant and Reliable Mule Applications	27%	- Optimize reliability and performance 1. Validate assertions using validation modules 2. Implement asynchronous processing 3. Build fault-tolerant message processing 4. Implement ObjectStore persistence 5. Implement performant API invocations
Topic 2: Implement Monitorable Mule Applications	15%	- Implement monitoring and logging 1. Configure and evaluate application logs 2. Change log levels dynamically 3. Implement monitoring dashboards and alerts 4. Expose health check endpoints
Topic 3: Secure Data at Rest and in Transit	20%	- Implement security best practices 1. Implement secure property management 2. Secure sensitive data in Mule applications 3. Create and distribute certificates and keys 4. Expose APIs over HTTPS 5. Implement TLS mutual authentication
Topic 4: Implement Maintainable and Modular Mule Applications and Their Maven Builds	25%	- Implement modular Mule application structures 1. Execute MUnit tests with Maven 2. Implement unit testing with MUnit framework 3. Create custom API rules 4. Implement Maven-based automated deployments 5. Optimize Maven build configurations
Topic 5: Expose Production-Ready Anypoint Platform Managed APIs	13%	- Manage APIs with Anypoint Platform 1. Configure API policies 2. Request and manage API access 3. Implement HTTP callbacks 4. Implement server-side API caching 5. Implement API versioning

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Salesforce Certified MuleSoft Developer II Mule-Dev-301 Prüfungsfragen mit Lösungen (Q34-Q39):

34. Frage
A Mule application need to invoice an API hosted by an external system to initiate a process. The external API takes anywhere between one minute and 24 hours to compute its process.
Which implementation should be used to get response data from the external API after it completes processing?

A. Expose an HTTP callback API in Mule and register it with the external system
B. Use a Scheduler to check for a response every minute
C. Use an HTTP Connector to invoke the API and wait for a response
D. Use an HTTP Connector inside Async scope to invoice the API and wait for a response

Antwort: A

Begründung:
To get response data from the external API after it completes processing, the developer should expose an HTTP callback API in Mule and register it with the external system. This way, the external API can invoke the callback API with the response data when it is ready, instead of making the Mule application wait for a long time or poll for a response repeatedly. Reference: https://docs.mulesoft.com/mule-runtime/4.3/http-listener-ref#callback

35. Frage
Which pattern should be used to invoke multiple HTTP APIs in parallel and roll back failed requests in sequence?

A. VM queues as a reliability pattern with error handlers to roll back any requests
B. Scatter-Gather as central Saga orchestrator for all API request with compensating actions for failing routes
C. A Parallel for Each scope with each HTTP request wrapped in a Try scope
D. A database as a transactional outbox and an Until Successful router to retry any requests

Antwort: B

Begründung:
To invoke multiple HTTP APIs in parallel and roll back failed requests in sequence, the developer should use a Scatter-Gather router as a central Saga orchestrator for all API requests with compensating actions for failing routes. A Scatter-Gather router executes multiple routes concurrently and aggregates the results. A Saga orchestrator coordinates a series of actions across different services and handles failures by executing compensating actions. Therefore, using a Scatter-Gather router as a Saga orchestrator allows invoking multiple HTTP APIs in parallel and rolling back any failed requests in sequence. Reference: https://docs.mulesoft.com/mule-runtime/4.3/scatter-gather-concept https://docs.mulesoft.com/mule-runtime/4.3/saga

36. Frage
A scatter-gather router is configured with four routes:Route A, B, C and D.
Route C false.

A. Payload ['2']
B. Error,errorMessage,payload.failures['2']
C. Error,errorMesage.payload.results ['2']
D. Payload failures['2']

Antwort: C

Begründung:
The result of accessing route C failure is Error,errorMessage,payload.failures['2']. This is because a scatter-gather router returns an aggregated message that contains an array of results from each route and an array of failures from each route. The failures array contains error objects with information about each failed route execution. To access route C failure, which is the third route (index 2), the developer needs to use Error.errorMessage.payload.failures['2'] expression. Reference: https://docs.mulesoft.com/mule-runtime/4.3/scatter-gather-reference#scatter-gather-output

37. Frage
An organization uses CloudHub to deploy all of its applications.
How can a common-global-handler flow be configured so that it can be reused across all of the organization's deployed applications?

A. Create a Mule Plugin project
B. Create a common-global-error-handler flow in all Mule Applications Refer to it flow-ref wherever needed.
C. Create a Mule plugin project
Create a common-global-error-handler flow inside the plugin project.
Use this plugin as a dependency in all Mute applications.
Import that configuration file in Mute applications.

Antwort: A

Begründung:
Create a common-global-error-handler flow inside the plugin project.
Use this plugin as a dependency in all Mule applications
D.
Create a Mule daman project.
Create a common-global-error-handler flow inside the domain project.
Use this domain project as a dependency.
Explanation:
To configure a common-global-handler flow that can be reused across all of the organization's deployed applications, the developer should create a Mule Plugin project, create a common-global-error-handler flow inside the plugin project, and use this plugin as a dependency in all Mule applications. This way, the developer can import the common-global-error-handler flow in any application that needs it and avoid duplicating the error handling logic. Reference: https://docs.mulesoft.com/mule-runtime/4.3/error-handling#global-error-handler

38. Frage
Refer to the exhibit.

A developer generates the base scaffolding for an API in Anypoint Studio.
Which HTTP status code is returned while testing using the API Kit console if no values are entered in client-secret?

A. HTTP status code:200
B. HTTP status code:500
C. HTTP status code:403
D. HTTP status code:400

Antwort: C

Begründung:
Based on the code snippet and schema.json file below, when testing using the API Kit console if no values are entered in client-secret, HTTP status code 403 (FORBIDDEN) is returned. This is because client-secret is defined as a required header parameter in schema.json file, which means that it must be present in every request. If no values are entered in client-secret, then it is equivalent to omitting this header parameter, which violates the schema and causes APIKit Router to return HTTP status code 403. Reference: https://docs.mulesoft.com/apikit/4.x/apikit-4-headers

39. Frage
......

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