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MuleSoft MCD-Level-1 Exam Questions

MuleSoft MCD-Level-1 Exam Questions Answers

MuleSoft Certified Developer - Level 1 (Mule 4)

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MuleSoft MCD-Level-1 Sample Questions – Free Practice Test & Real Exam Prep

Question #1

As a part of requirement , application property defined below needs to be accessed as dataweave expression. What is the correct expression to map it to port value?

  • A. { port : p('db.port')} 
  • B. { port : {db:port}} 
  • C. { port : p['db.port']} 
  • D. Application property cannot be accessed in Dataweave 
Answer: A
xplanation: Explanation Option 1 is the correct syntax 
Question #2

A RAML example fragment named StudentExample.raml is placed in the examples folder in an API specification project. What is the correct syntax to reference the fragment?

  • A. examples: !include StudentExample.raml 
  • B. examples: #import StudentExample.raml 
  • C. examples: !include examples/StudentExample.raml
  • D. examples: #import examples/StudentExample.raml 
Answer: C
Explanation: Explanation To include property. To keep the API definition concise, you can include external content, such as documentation, schemas, and frequently used patterns outside the definition itself. The parser interprets !include as if the content of the externally-hosted file or a URL were declared in-line. To use the fragments in RAML you have to include the exact path(copy the path) of that fragment you want to use as shown below Option 3 is the correct as correct syntax is examples: !include examples/StudentExample.raml Reference: https://docs.mulesoft.com/api-manager/1.x/tutorial-design-an-api
Question #3

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 
Answer: B
Explanation: Explanation 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 #4

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 
Answer: A
Explanation: Explanation 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 #5

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" ) 
Answer: B
Explanation: Explanation 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 #6

A Mule project contains a DataWeave module like WebStore.dwl that defines a function named loginUser. The module file is located in the project's src/main/resources/libs/etl folder. What is correct DataWeave code to import all of the WebStore.dwl file's functions and then call the loginUser function for the login "[email protected]"? 

Answer: D
Explanation: Explanation * To use custom 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: 1) Does not identify any functions to import from the String module: import dw::core::Strings 2) To identify a specific function to import from the String module: import camelize, capitalize from dw::core::Strings 3) To import all functions from the String module: 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. * In given scenario, it's mentioned to import all of the WebStore.dwl So correct answer is: Reference: https://docs.mulesoft.com/mule-runtime/4.3/dw-functions 
Question #7

Which of the below activity doesn't support parallel execution?

  • A. Scatter-Gather Router 
  • B. First Successful Router 
  • C. Parallel For Each 
  • D. Batch job 
Answer: C
Explanation: Explanation The First Successful router iterates through a list of configured processing routes until one of the routes executes successfully. This is sequential execution. In all other options mentioned in the question ,we can achieve parallel execution. 
Question #8

A Mule application configured with Autodiscovery implements an API. Where is governance enforced for policies defined for this Mule application?

  • A. In Runtime Manager 
  • B. Runtime Manager 
  • C. In the Mule application 
  • D. In API manager 
Answer: D
Explanation: Explanation Correct answer is API manager 
Question #9

Which of the following is invalid type of event processor which can be used as a router ?

  • A. Choice 
  • B. Round Robin 
  • C. Pick First 
  • D. First Successful 
Answer: C
Explanation: Explanation Pick First is not valid type. Rest all are valid type of event processor. Choice : https://docs.mulesoft.com/mule-runtime/4.3/choice-router-concept Round Robin : https://docs.mulesoft.com/mule-runtime/4.3/round-robin First Successful : https://docs.mulesoft.com/mule-runtime/4.3/first-successful 
Question #10

What MuleSoft product enables publishing, sharing, and searching of APIs?

  • A. Runtime Manager 
  • B. API Notebook 
  • C. API Designer 
  • D. Anypoint Exchange 
Answer: D
Explanation: Explanation Anypoint Exchange provided a way to publish , share and search API's. MuleSoft Doc Ref : https://docs.mulesoft.com/exchange/
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