Salesforce SALESFORCE-MULESOFT-DEVELOPER-I Online Practice Questions and Exam Preparation

Salesforce SALESFORCE-MULESOFT-DEVELOPER-I Online Questions & Answers

• Question 41:

  What payload is returned by a Database SELECT operation that does not match any rows in the database?

  A. false
  B. null
  C. Exception
  D. Empty Array
  D. Empty Array

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  Explanation

  Empty array is returned when no rows are matched.

  MuleSoft Doc Ref : https://docs.mulesoft.com/db-connector/1.9/database-connector-select

• Question 42:

  Refer to the exhibit.

  

  The Database Select operation returns five rows from a database. What is logged by the Logger component?

  A. "Array"
  B. "Object"
  C. "LinkedHashMap"
  D. "CaselnsensitrveHashMap"
  A. "Array"

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  Explanation

• Question 43:

  What does C4E stands for in MuleSoft recommended IT operating model?

  A. Centre for Empowerment
  B. Centre for Engagement
  C. Centre for Enablement
  D. Centre for Excellence
  C. Centre for Enablement

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  Explanation

  Centre for Enablement (C4E) is an IT operating model that enables an enterprise to build reusable assets, accumulate API's, leverage best practices and knowledge to enable self service and efficient delivery in the organization and implement new solutions faster

• Question 44:

  Refer to the exhibits. APIKit router is used to generate the flow components for RAML specification.

  The Mule application must be available to REST clients using the two URL's

  http://localhost:8081/internal and http://localhost:8081/external

  How many APIKit Router components are generated to handle requests to every endpoint defined in RAML specification?

  1.Library.raml 2./books

  3.get:

  4.post: 5./order:

  6.get

  7.patch 8./members

  9. get:

  A. 1
  B. 2
  C. 3
  D. 5
  A. 1

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  Explanation

• Question 45:

  Which of the below is not the mandatory configurations for HTTP Listener?

  A. Path
  B. Allowed methods
  C. HTTP port in Connector Configuration
  D. HTTP host in Connector Configuration
  B. Allowed methods

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  Explanation

  Allowed methods is an optional configuration. If nothing is specified then all HTTP methods are supported.

• Question 46:

  Refer to the exhibits.

  

  Set paylaod transformer is set the firstName and lastName of the customer as shown in below images.

  What is the correct Dataweave expression which can be added in message attribute of a Logger activity to access firstName (which in this case is Madhav) from the incoming event?

  A. firstName
  B. customer.firstName
  C. vars."customer.firstName"
  D. vars."customer"."firstName"
  D. vars."customer"."firstName"

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  Explanation

  Please note that you can also access firstName using this syntax vars.customer.firstName. Mule Ref Doc : Variables in Mule Apps | MuleSoft Documentation

• Question 47:

  Refer to the exhibit.

  

  What should be changed to fix the 415 error?

  A. set the response Content-Type header to text/plain
  B. set the response Content-Type header to application/json
  C. Set the request Content-Type header to application/] son
  D. set the request Content-Type header to text/plain
  C. Set the request Content-Type header to application/] son

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  Explanation

  The HTTP 415 Unsupported Media Type client error response code indicates that the server refuses to accept the request because the payload format is in an unsupported format. The format problem might be due to the request's indicated Content-Type or Content-Encoding , or as a result of inspecting the data directly. In this case as per RAML specification data is expected in application/json and in request Content-Type is set as "text/plain" which is incorrect. Hence solution is set the request Content-Type header to application/json https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/415

  

• Question 48:

  What is the difference between a subflow and a sync flow?

  A. No difference
  B. Subflow has no error handling of its own and sync flow does
  C. Sync flow has no error handling of its own and subflow does
  D. Subflow is synchronous and sync flow is asynchronous
  B. Subflow has no error handling of its own and sync flow does

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  Explanation

  Correct answer is Subflow has no error handling implementation where as sync flow has. Subflow A subflow processes messages synchronously (relative to the flow that triggered its execution) and always inherits both the processing strategy and exception strategy employed by the triggering flow. While a subflow is running, processing on the triggering flow pauses, then resumes only after the subflow completes its processing and hands the message back to the triggering flow. Synchronous Flow A synchronous flow, like a subflow, processes messages synchronously (relative to the flow that triggered its execution). While a synchronous flow is running, processing on the triggering flow pauses, then resumes only after the synchronous flow completes its processing and hands the message back to the triggering flow. However, unlike a subflow, this type of flow does not inherit processing or exception strategies from the triggering flow. This type of flow processes messages along a single thread, which is ideally suited to transactional processing

• Question 49:

  What asset cannot be created using Design Center?

  A. Mule Applications
  B. API fragments
  C. API specifications
  D. API portals
  D. API portals

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  Explanation

  API portal are created by API Exchange and cannot be created by Design Center

• Question 50:

  An API has been created in Design Center. What is the next step to make the API discoverable?

  A. Publish the API to Anypoint Exchange
  B. Publish the API from inside flow designer
  C. Deploy the API to a Maven repository
  D. Enable autodiscovery in API Manager
  A. Publish the API to Anypoint Exchange

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  Explanation

  Correct answer is Publish the API to Anypoint Exchange Anypoint Exchange makes this possible by making it discoverable in below ways 1) In private exchange for internal developers 2) In a public portal for external developers/clients Here is diagram created by me to help you understand sequence: