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

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

• Question 31:

  How we can scale deployed Mule application vertically on cloudhub?

  A. Changing worker size
  B. Adding multiple workers
  C. Mule applications can be scaled only horizontally
  D. Option 1 and 2 both can be used
  A. Changing worker size

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  Explanation

  Mule applications can be scaled vertically by changing worker size. Mule applications can be scaled horizontally by adding more workers.

• Question 32:

  Refer to the exhibit.

  

  What is the response to a web client request to http://localhost:8081?

  A. After
  B. before
  C. Validation Error
  D. null
  C. Validation Error

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  Explanation

• Question 33:

  A web client submits a request to http://localhost:8081/books/0471767840. The value "0471767840" is captured by a Set Variable transformer to a variable named booklSBN.

  What is the DataWeave expression to access booklSBN later in the flow?

  A. booklSBN
  B. attributes.booklSBN
  C. flowVars.booklSBN
  D. vars. booklSBN
  D. vars. booklSBN

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  Explanation

• Question 34:

  A Utlility.dwl is located in a Mule project at src/main/resources/modules. The Utility.dwl file defines a function named encryptString that encrypts a String What is the correct DataWeave to call the encryptString function in a Transform Message component?

  A. 1. %dw 2.0 2.output application/json 3.import modules::Utility 4.--5.Utility::encryptString( "John Smith" )
  B. 1. %dw 2.0 2.output application/json 3.import modules::Utility 4.--5.encryptString( "John Smith" )
  C. 1. %dw 2.0 2.output application/json 3.import modules.Utility 4.--5.encryptString( "John Smith" )
  D. 1. %dw 2.0 2.output application/json 3.import modules.Utility 4.--5.Utility.encryptString( "John Smith" )
  B. 1. %dw 2.0 2.output application/json 3.import modules::Utility 4.--5.encryptString( "John Smith" )

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  Explanation

  %dw 2.0 output application/json import modules::Utility

  Utility::encryptString( "John Smith" ) DataWeave 2.0 functions are packaged in modules. Before you begin, note that DataWeave 2.0 is for Mule 4 apps. For Mule 3 apps, refer to DataWeave Operators in the Mule 3.9 documentation. For other Mule versions, you can use the version selector for the Mule Runtime table of contents. Functions in the Core (dw::Core) module are imported automatically into your DataWeave scripts. To use other modules, you need to import the module or functions you want to use by adding the import directive to the head of your DataWeave script, for example: import dw::core::Strings import camelize, capitalize from dw::core::Strings import * from dw::core::Strings The way you import a module impacts the way you need to call its functions from a DataWeave script. If the directive does not list specific functions to import or use * from to import all functions from a function module, you need to specify the module when you call the function from your script. For example, this import directive does not identify any functions to import from the String module, so it calls the pluralize function like this: Strings::pluralize("box"). Transform %dw 2.0 import dw::core::Strings output application/json

  { 'plural': Strings::pluralize("box") }

• Question 35:

  Refer to the exhibits.

  

  The mule application is debugged in Anypoint Studio and stops at the breakpoint as shown in below exhibit. What is the value of the payload displayed in the debugger at this breakpoint?

  A. Start
  B. Process
  C. Finished
  D. Payload is always empty at the breakpoint
  A. Start

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  Explanation

  Setting Breakpoints To set breakpoints, right-click a building block, then select Toggle Breakpoint. Studio applies a red dot to the building block's icon on the canvas. When you run your application in Debug mode, Studio stops the flow execution at the breakpoint you have set, allowing you to check the Mule Event content in the Mule Debugger View. Mule Ref Doc : Setting Breakpoints | MuleSoft Documentation

• Question 36:

  What execution model is used by For Each and Batch Job scopes?

  A. For Each is single-threaded and Batch Job is multi-threaded
  B. Both are single-threaded
  C. Both are multi-threaded
  D. Batch Job is single-threaded and For Each Is multi-threaded
  A. For Each is single-threaded and Batch Job is multi-threaded

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  Explanation

• Question 37:

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

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

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  Explanation

  APIKIt Creates a separate flow for each HTTP method

• Question 38:

  Which of the below functionality is provided by zip operator in DataWeave?

  A. Merges elements of two lists (arrays) into a single list
  B. Used for sending attachments
  C. Minimize the size of long text using encoding.
  D. All of the above
  A. Merges elements of two lists (arrays) into a single list

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  Explanation

  Correct answer is Merges elements of two lists (arrays) into a single list MuleSoft Doc

  https://docs.mulesoft.com/mule-runtime/4.3/dw-core-functions-zip

• Question 39:

  According to MuleSoft. what is the first step to create a Modern API?

  A. Gather a list of requirements to secure the API
  B. Create an API specification and get feedback from stakeholders
  C. Performance tune and optimize the backend systems and network
  D. Create a prototype of the API implementation
  B. Create an API specification and get feedback from stakeholders

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  Explanation

  First step in creating Modern API is to create an API specification and get feedback from stakeholders so that any future issues can be identified at early stage thereby reducing overall delivery time

  https://developer.mulesoft.com/ tutorials-and-howtos/quick-start/designing-your- first-api

• Question 40:

  Refer to the exhibits.

  

  The Batch Job scope contains two Batch Step scopes with different accept expressions.

  The input payload is passed to the Batch Job scope.

  After the entire payload is processed by the Batch Job scope, what messages have been logged by the Logger components?

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  C. Option C

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  Explanation