Mulesoft MCD-LEVEL1 Online Practice Questions and Exam Preparation

Mulesoft MCD-LEVEL1 Online Questions & Answers

• Question 71:

  What DataWeave expression transforms the example XML input to the CSV output?

  

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

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  Explanation/Reference:

  Correct answer is as below. Attributes in the incoming xml payload are always accessed using @.Similarly *item is required as we have multiple items in the request %dw 2.0 output application/csv

  payload.sale.*item map ((value, index) -> {

  index: index,

  sale: value.@saleId,

  itemName: value.desc,

  itemPrice: (value.quantity) * (value.price),

  item: value.@itemId

  } )

• Question 72:

  Why would a Mule application use the ${http.port} property placeholder for its HTTP Listener port when it is deployed to CloudHub?

  A. Allows CloudHub to automatically change the HTTP port to allow external clients to connect to the HTTP Listener
  B. Allows CloudHub to automatically register the application with API Manager
  C. Allows MuleSoft Support to troubleshoot the application by connecting directly to the HTTP Listener
  D. Allows clients to VPN directly to the application at the Mule application's configured HTTP port
  A. Allows CloudHub to automatically change the HTTP port to allow external clients to connect to the HTTP Listener

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  Explanation/Reference:

  This helps CloudHub to dynamically allocates a port at deployment time.

  MuleSoft Doc Ref : https://docs.mulesoft.com/mule-runtime/4.3/deploy-to-cloudhub#prerequisites Reference: https://docs.mulesoft.com/runtime-manager/developing-applications-for-cloudhub

• Question 73:

  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/Reference:

  Correct answer is %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 74:

  Refer to the exhibits.

  

  The input array of strings is processed by the batch job that processes, fitters, and aggregates the values. What is the last message logged by the Logger component after the batch job completes processing?

  

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

• Question 75:

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

  A. RAML
  B. WSDL
  C. JSON
  D. OAS
  B. WSDL

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  Explanation/Reference:

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

• Question 76:

  How are multiple conditions used in a Choice router to route events?

  A. To route the same event to the matched route of EVERY true condition
  B. To find the FIRST true condition, then distribute the event to the ONE matched route.
  C. None of these
  D. To find the FIRST true condition, then route the same event to the matched route and ALL FOLLOWING routes
  B. To find the FIRST true condition, then distribute the event to the ONE matched route.

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  Explanation/Reference:

  Choice router finds the FIRST true condition, then distribute the event to the ONE matched route.

  MuleSoft Doc Ref : https://docs.mulesoft.com/mule-runtime/4.1/choice-router-concept The Choice router dynamically routes messages through a flow according to a set of DataWeave expressions that evaluate message content. Each

  expression is associated with a different routing option. The effect is to add conditional processing to a flow, similar to an if/then/else code block in most programming languages. Only one of the routes in the Choice router executes, meaning

  that the first expression that evaluates to true triggers that route's execution and the others are not checked. If none of the expressions are true, then the default route executes.

  

• Question 77:

  An API specification is designed using RAML. What is the next step to create a REST Connector from this API specification?

  A. Download the API specification and build the interface using APIkit
  B. Publish the API specification to Any point Exchange
  C. Implement the API specification using flow designer in Design Center
  D. Add the specification to a Mule project's src/main/resources/api folder
  B. Publish the API specification to Any point Exchange

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  Explanation/Reference:

  API Exchange creates REST conenctor automtaically once API is published. Hence correct answer is Publish the API specification to Any point Exchange

• Question 78:

  Refer to the exhibits.

  

  The Mule Application is being debugged in Anypoint Studio and stops at breakpoint. What is the value of payload displayed in debugger at this breakpoint?

  A. Processing
  B. Begin
  C. Finished
  B. Begin

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  Explanation/Reference:

  breakpoint shows us payload at the beginning of the component work: that is *before* it sets the payload (checked it in Studio).

• Question 79:

  A Mule application contains a global error handler configured to catch any errors.

  Where must the global error handler be specified so that the global error handler catches all errors from flows without their own error handlers?

  A. A configuration properties file
  B. Nowhere, the global error handler is automatically used
  C. A global element
  D. The pom.xml file
  C. A global element

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  Explanation/Reference:

  Correct answer is A global element Global error handlers are to be created in global element . Quick note to remember here is Global error handlers come in to picture only when there are no error handlers specified as flow level. Steps to create Global error handler 1) Click Global Elements to open Global Configuration Elements. Global Elements is located below the Studio canvas 2) In Global Configuration Elements, click Create to open the Choose Global Type dialog

  

  3) From the dialog, select Global Configuration - Configuration, and then click OK to open the Configuration dialog.

  

  4) From the select Configuration dialog, select allErrorHandler for the Default Error Handler field, and click OK.

• Question 80:

  Refer to the exhibits. The Set Payload transformer in the addltem child flow uses DataWeave to create an order object.

  What is the correct DataWeave code for the Set Payload transformer in the createOrder flow to use the addltem child flow to add a router call with the price of 100 to the order?

  

  A. lookup( "addltern", { price: "100", item: "router", itemType: "cable" } )
  B. addltem( { payload: { price: "100", item: "router", itemType: "cable" > } )
  C. lookup( "addltem", { payload: { price: "100", item: "router", itemType: "cable" } > )
  D. addltem( { price: "100", item: "router", itemType: "cable" } )
  C. lookup( "addltem", { payload: { price: "100", item: "router", itemType: "cable" } > )