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

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

• Question 181:

  A function named toUpper needs to be defined that accepts a string named userName and returns the string in uppercase.

  What is the correct DW code to define the toUpper function?

  A. var toUpper(userName) -> upper(userName)
  B. fun toUpper(userName) = upper(userName)
  C. fun toUpper(userName) -> upper(userName)
  D. var toUpper(userName) = upper(userName)
  B. fun toUpper(userName) = upper(userName)

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  Explanation

  https://docs.mulesoft.com/http-connector/1.5/http-listener-ref

• Question 182:

  Refer to the exhibit.

  

  How many private flows does APIKIT generate from the RAML specification?

  A. 1
  B. 2
  C. 3
  D. 4
  D. 4

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  Explanation

• Question 183:

  According to Semantic Versioning, which version would you change for incompatible API changes?

  A. No change
  B. MINOR
  C. MAJOR
  D. PATCH
  C. MAJOR

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  Explanation

  Correct answer is MAJOR

  MAJOR version when you make incompatible API changes, MINOR version when you add functionality in a backwards compatible manner, and PATCH version when you make backwards compatible bug fixes.

  For details refer to this documentation : https://semver.org/

• Question 184:

  Refer to the exhibit.

  

  A Mule event is composed of a hierarchy of objects. Where in the hierarchy are variables stored?

  A. Mule event
  B. Mule message payload
  C. Mule message
  D. Mule message attributes
  A. Mule event

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  Explanation

  Variables are stored under Mule event. Please refer to below image for the hierarchy .

  

• Question 185:

  A company has defined two RAML fragments, Book Data Type and Book Example to be used in APIs. What would be valid RAML to use these fragments ?

  

  

  A. 1. #%RAML 1.0 2.title: Books 3.types: 4.Book: ABC/Examples/bookDataType.raml 5./books: 6.post: 7.body: 8.application/json: 9. type: Book 10. examples: 11.input: ABC/Examples/bookExample.raml 12.responses: 13.201: 14.body: 15.application/json: 16.example: 17.message: Book added
  B. 1.#%RAML 1.0 2.title: Books 3.Book: !include bookDataType.raml 4./books: 5.post: 6.body: 7.application/json: 8.type: Book 9. examples: 10. input: !include bookExample.raml 11.responses: 12.201: 13.body: 14.application/json: 15.example: 16.message: Book added
  C. 1.#%RAML 1.0 2.title: Books 3.Book: bookDataType.raml 4./books: 5.post: 6.body: 7.application/json: 8.type: Book 9. examples: 10. input: bookExample.raml 11.responses: 12.201: 13.body: 14.application/json: 15.example: 16.message: Book added
  D. 1.#%RAML 1.0 2.title: Books 3.Book: bookDataType.raml 4./books: 5.post: 6.body: 7.application/json: 8.type: Book 9. examples: 10. input: bookExample.raml 11.responses: 12.201: 13.body: 14.application/json: 15.example: 16.message: Book added
  D. 1.#%RAML 1.0 2.title: Books 3.Book: bookDataType.raml 4./books: 5.post: 6.body: 7.application/json: 8.type: Book 9. examples: 10. input: bookExample.raml 11.responses: 12.201: 13.body: 14.application/json: 15.example: 16.message: Book added

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  Explanation

• Question 186:

  Refer to the exhibit. What is the output of logger component?

  

  A. String
  B. Object
  C. Array
  D. Map
  C. Array

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  Explanation

  Database always return rows as an array. Array is the correct answer

• Question 187:

  A Utility.dwl file is located in a Mule project at src/main/resources/modules. The Utility.dwl hie defines a function named pascalize that reformats strings to pascal case. What is the correct DataWeave to call the pascalize function in a Transform Message component?

  

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

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  Explanation

• Question 188:

  Refer to the exhibit.

  

  How should be the where clause written for the configured input parameters in such a way that it achieves below SQL query?

  A. WHERE city := ${city} AND state := ${state}
  B. WHERE city = attributes.city AND state = attributes.state
  C. WHERE city = :city AND state = :state
  D. WHERE city := city AND state := state
  C. WHERE city = :city AND state = :state

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  Explanation

  Correct syntax to use where clause is WHERE city = :city AND state = :state This question validates knowledge on using dynamic queries in DB select operation.

  Configure Dynamic Queries in the Select Operation

  When you need to parameterize not only the WHERE clause but also parts of the query itself (for example, queries that compare tables that depend on a condition, or complex queries for which the project table columns need to vary), you can

  configure dynamic queries.

  In the following example, you configure a dynamic query by using a full expression with a string in which the table depends on a variable $(vars.table). Although some of the query text is dynamic ("SELECT * FROM $(vars.table)), the WHERE

  clause still defines the WHERE condition using input parameters: in this case, WHERE name = :name.

  In your Studio flow, select the Select operation.

  In the operation configuration screen, set the SQL Query Text field to SELECT * FROM $(vars.table) WHERE name = :name.

  Set the Input Parameters field to {'name' : payload}.

  The following screenshot shows the configuration in Studio:

  

  Figure 3. Dynamic query configuration

  In the XML editor, the configuration looks like this:

  #["SELECT * FROM $(vars.table) WHERE name = :name"]

  #[{'name' : payload}]

  You can apply input parameters only to parameters in a WHERE clause. To modify any other part of the query, use the DataWeave interpolation operator.

  Mule Ref Doc: Query a Database Examples - Mule 4 | MuleSoft Documentation

• Question 189:

  Following Mulesoft's recommended API-led connectivity approach , an organization has created an application network. The organization now needs to create API's to transform , orchestrate and aggregate the data provided by the other API's in the application network. This API should be flexible enought ot handle the data from additional API's in future.

  According to Mulesoft's recommended API-led connectivity approach , what is the best layer for this new API?

  A. Process layer
  B. System layer
  C. Experience layer
  D. Data layer
  A. Process layer

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  Explanation

  Correct answer is process layer as all the orchestration and transformation logic should be in process layer as per Mulesoft's recommended approach for API led connectivity. API-led connectivity is a methodical way to connect data to

  applications through reusable and purposeful APIs. These APIs are developed to play a specific role ?unlocking data from systems, composing data into processes, or delivering an experience.

  What are the APIs that enable API-led connectivity?

  API-led connectivity provides an approach for connecting and exposing assets. With this approach, rather than connecting things point-to-point, every asset becomes a managed API ?a modern API, which makes it discoverable through self-

  service without losing control.

  The APIs used in an API-led approach to connectivity fall into three categories:

  System APIs ?these usually access the core systems of record and provide a means of insulating the user from the complexity or any changes to the underlying systems. Once built, many users, can access data without any need to learn the

  underlying systems and can reuse these APIs in multiple projects.

  Process APIs ?These APIs interact with and shape data within a single system or across systems (breaking down data silos) and are created here without a dependence on the source systems from which that data originates, as well as the

  target channels through which that data is delivered.

  Experience APIs ?Experience APIs are the means by which data can be reconfigured so that it is most easily consumed by its intended audience, all from a common data source, rather than setting up separate point-to-point integrations for

  each channel. An Experience API is usually created with API-first design principles where the API is designed for the specific user experience in mind.

• Question 190:

  A company has an API to manage purchase orders, with each record identified by a unique purchase order ID. The API was built with RAML according to MuleSoft best practices. What URI should a web client use to request order P05555?

  A. /orders/{P05555}
  B. /orders/order=P05555
  C. /orders?order=P05555
  D. /orders/P05555
  D. /orders/P05555

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  Explanation