Mulesoft MCD-LEVEL1 Online Practice Questions and Exam Preparation

Mulesoft MCD-LEVEL1 Online Questions & Answers

• Question 81:

  Refer to the exhibits.

  

  A web client submits a request to http://localhQst:8081. What is the structure of the payload at the end of the flow?

  

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

  ---

  Explanation/Reference:

  Scatter-Gather sends the event to each routes concurrently and returns a collection of all results. Collection is an Object of Objects. Each object contains attributes and payload from each Mule event returned from a flow. Hence option 4 is the correct answer.

• Question 82:

  Which of the below is not a valid category for connector type?

  A. Gold
  B. Select
  C. Premium
  D. Community
  A. Gold

  ---

  Explanation/Reference:

  Gold is not valid category for connector types.

  MuleSoft Doc Ref : https://docs.mulesoft.com/mule-runtime/3.7/anypoint-connectors#connector-support-categories

  

• Question 83:

  Refer to the exhibits.

  

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

  A. [ ["A", "C", "D" ], ["E"] ]
  B. [''E'']
  C. [''D", "E"]
  D. [ "A", "C, "D", "E" ]
  B. [''E'']

  ---

  Explanation/Reference:

  Logs would look like:

  INFO 2021-06-09 19:14:56,039 [[MuleRuntime].uber.06: [validationtest].batch-job- validationtestBatch_Job-work-manager @6de10f3e] [processor:

  validationtestFlow/processors/1/route/0/route/0/aggregator/processors/0; event: bfb751e1- 9939-11eb-9f69-02053763653a]

  org.mule.runtime.core.internal.processor.LoggerMessageProcessor:

  [

  "\"A\"",

  "\"C\"",

  "\"D\""

  ]

  INFO 2021-06-09 19:15:02,486 [[MuleRuntime].uber.06: [validationtest].batch-job- validationtestBatch_Job-work-manager @6de10f3e] [processor:

  validationtestFlow/processors/1/route/0/route/0/aggregator/processors/0; event: bfb751e1- 9939-11eb-9f69-02053763653a]

  org.mule.runtime.core.internal.processor.LoggerMessageProcessor: [ "\"E\""

  ]

  Batch aggregator value is 3. Hence in first time it will print ["A", "C", "D"] and in next iteration it will print [ "E" ]

  ------------------------------------------------------------------------------------------------------------------------- ------------------------- Correct answer is [ "E" ]

• Question 84:

  Refer to the exhibit.

  

  What is a valid expression for the Choice router's when expression to route events to the documenticShipping flow?

  A. 0#[ payload = 'US' ]
  B. #[ payload == 'US' J
  C. #[ if(payload = 'US') J
  D. #[ if(payload == "US") ]
  B. #[ payload == 'US' J

  ---

  Explanation/Reference:

  Option 1 is the correct syntax

• Question 85:

  What should this endpoint return considering the API is build using standard practices?

  http://dev.acme.com/api/patients?year=2021

  A. Patient with id 2021
  B. Patients from year 2021
  C. No patients
  D. All patients
  B. Patients from year 2021

  ---

  Explanation/Reference:

  Correct answer is Patients from year 2021.

  The thing to note here is that year is not a query parameter and not the uri parameter. Hence it will filter all the patients and return the ones for whom year is 2021

• Question 86:

  What is the correct syntax to define and call a function in Database?

  

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

  ---

  Explanation/Reference:

  Keyword to ad function in Dataweave transformation is fun. Hence option 2 and 4 are invalid. Also parameters needs to be passed exactly in same order as defined in function definition. Hence correct answer is' fun addKV( object: Object,

  key: String, value: Any) =

  object ++ {(key):(value)}

  addKV ( {"hello': "world"}, "hola", "mundo" )

  MuleSoft Documentation Reference : https://docs.mulesoft.com/mule- runtime/4.3/dataweave-functions

  DataWeave Function Definition Syntax

  To define a function in DataWeave use the following syntax:

  fun myFunction(param1, param2, ...) =

  The fun keyword starts the definition of a function.

  myFunction is the name you define for the function.

  Function names must be valid identifiers.

  (param1, param2, ... , paramn) represents the parameters that your function accepts. You can specify from zero to any number of parameters, separated by commas (,) and enclosed in parentheses. The = sign marks the beginning of the

  code block to execute when the function is called. represents the actual code that you define for your function.

• Question 87:

  Refer to the exhibit.

  

  The main flow is configured with their error handlers. A web client submit a request to the HTTP Listener and the HTTP Request throws an HTTP:NOT_FOUND error.

  What response message is returned?''

  What response message is returned?

  A. APP: API RESOURCE NOT FOUND
  B. HTTP: NOT FOUND
  C. other error
  D. success - main flow
  A. APP: API RESOURCE NOT FOUND

  ---

  Explanation/Reference:

  Correct answer is APP: API RESOURCE NOT FOUND

  1) A web client submits the request to the HTTP Listener.

  2) The HTTP Request throws an "HTTP:NOT_FOUND" error, execution halts.

  3) The On Error Propagate error Handler handles the error. In this case ,HTTP:NOT_FOUND error is mapped to custom error

  APP:API_RESOURCE_NOT_FOUND. This error processor sets payload to APP:API_RESOURCE_NOT_FOUND.

  4) "APP:API_RESOURCE_NOT_FOUND. " is the error message returned to the requestor in the body of the HTTP request with HTTP Status Code: 500 Reference Diagram:

  

• Question 88:

  A mule project contains MySQL database dependency . The project is exported from Anypoint Studio so that it can be deployed to Cloudhub. What export options needs to be selected to create the smallest deployable archive that will successfully deploy to Cloudhub?

  A. Select both the options 1) Attach project sources 2) Include project module and dependencies
  B. No need to select any of the below options 1) Attach project sources 2) Include project module and dependencies
  C. Select only below option 2) Include project module and dependencies
  D. Select only below option 1) Attach project sources
  C. Select only below option 2) Include project module and dependencies

  ---

  Explanation/Reference:

  You can choose Attach Project Sources to include metadata that Studio requires to reimport the deployable file as an open Mule project into your workspace. You must keep the Attach Project Sources option selected to be able to import the packaged JAR file back into a Studio workspace. But requirement here is to create smallest deployable archive that will successfully deploy to Cloudhub. Hence we can ignore this option. We need to select Include project module and dependencies As actual modules and external dependencies required to run the Mule application in a Mule runtime engine Hence correct answer is Select only below option 2) Include project module and dependencies MuleSoft Doc

  Ref : https://docs.mulesoft.com/studio/7.5/import-export-packages#exporting-a-studio-project-to-a-deployable-mule-application

• Question 89:

  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

  ---

  Explanation/Reference:

  Correct answer is 5 as APIkit for REST generates a backend flow for each resource-action pairing in a RAML file. MuleSOft Doc Ref : https://docs.mulesoft.com/mule-runtime/4.2/build-application-from-api

• Question 90:

  Refer to the exhibits.

  

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

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