Mulesoft MCD-LEVEL1 Online Practice Questions and Exam Preparation

Mulesoft MCD-LEVEL1 Online Questions & Answers

• Question 221:

  Which keyword do you use to create a new function in DataWeave?

  A. function
  B. fun
  C. func
  D. map
  B. fun

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  Explanation/Reference:

  You can define your own DataWeave functions using the fun declaration in the header of a DataWeave script. Sample is as below. ---------------------------------------- %dw 2.0 output application/json

  fun toUpper(aString) = upper(aString)

  toUpper("hello")

  MuleSoft Doc Ref : https://docs.mulesoft.com/mule-runtime/4.1/dataweave-functions

• Question 222:

  What is the default port used by Mule application debugger configuration in Anypoint Studio?

  A. 8082
  B. 8080
  C. 7777
  D. 6666
  D. 6666

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  Explanation/Reference:

  By default, Debugger listens for incoming TCP connections on localhost port 6666 You can change this in a project's run configuration. MuleSoft Doc Ref : https://docs.mulesoft.com/studio/7.5/visual-debugger-concept

• Question 223:

  Which one of them is NOT a flow in Mule?

  A. sync flow
  B. subflow
  C. async sub flow
  D. async flow
  C. async sub flow

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  Explanation/Reference:

  Correct answer is async sub flow. Rest are valid flows in Mule. Sub flow is always synchronous.

• Question 224:

  Where are values of query parameters stored in the Mule event by the HTTP Listener?

  A. Inbound Properties
  B. Variables
  C. Attributes
  D. Payload
  C. Attributes

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  Explanation/Reference:

  Correct answer is Attributes.

  Query parameters , URI parameters and headers are some of examples which are part of attributes.

  

• Question 225:

  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/Reference:

  Correct answer is Merges elements of two lists (arrays) into a single list MuleSoft Doc Reference : https://docs.mulesoft.com/mule-runtime/4.3/dw-core-functions-zip

• Question 226:

  Refer to the exhibit. APIkit is used to generate flow components for the RAML specification.

  

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

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

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  Explanation/Reference:

• Question 227:

  Refer to the exhibits.

  

  What payload and quantity are togged at the end of the main flow?

  A. [[order1, order2, order3, order4], 14]
  B. [[1,2,3,4], 10]
  C. [[1,2,3,4], 14]
  D. [orderlorder2order3order4, 14]
  C. [[1,2,3,4], 14]

• Question 228:

  What is the minimum Cloudhub worker size that can be specified while deploying mule application?

  A. 0.2 vCores
  B. 0.5 vCores
  C. 1.0 vCores
  D. 0.1 vCores
  D. 0.1 vCores

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  Explanation/Reference:

  Correct answer is 0.1 vCores MuleSoft Doc Ref : https://docs.mulesoft.com/runtime-manager/cloudhub-architecture#cloudhub-workers CloudHub Workers Workers are dedicated instances of Mule runtime engine that run your integration applications on CloudHub. The memory capacity and processing power of a worker depends on how you configure it at the application level. Worker sizes have different compute, memory, and storage capacities. You can scale workers vertically by selecting one of the available worker sizes:

  

• Question 229:

  Refer to the exhibits The Mule application does NOT define any global error handlers.

  A web client sends a POST request to the Multi application with this input payload The File Write operation throws a FILECONNECTIVITY error

  What response message is returned to the web client?

  

  A. "ORDER NOT_CREATED"
  B. "OTHER ERROR"
  C. "File written"
  D. "FILECONNECTIVITY"
  A. "ORDER NOT_CREATED"

• Question 230:

  What DataWeave expression transforms the array a to the XML output?

  

  A. 1.1. trains: 2.2. {( 3.3. a map ((engId, index) -> 4.4. train: { 5.5. TrainNumber: engId 6.6. 7.7. } 8.8. ) 9.9. )}
  B. 1.1. trains: 2.2. a map ((engId, index) -> 3.3. train: { 4.4. TrainNumber: engId 5.5. 6.6. } 7.7. )
  C. 1.1. {( 2.2. trains: 3.3. a map ((engId, index) -> 4.4. train: { 5.5. TrainNumber: engId 6.6. 7.7. } 8.8. ) 9.)}
  D. 1.1. { 2.2. trains: 3.3. a map ((engId, index) -> 4.4. train: { 5.5. TrainNumber: engId 6.6. 7.7. } 8.8. ) 9.}
  A. 1.1. trains: 2.2. {( 3.3. a map ((engId, index) -> 4.4. train: { 5.5. TrainNumber: engId 6.6. 7.7. } 8.8. ) 9.9. )}

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  Explanation/Reference:

  For such questions always look for Syntax:

  I call it "Wrap the Map"

  trains:

  {(

  When mapping array elements (JSON or JAVA) to XML, wrap the map operations in {(..)} -{ } are defining the object

  -( ) are transforming each element in the array as a key/value pair