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

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

• Question 221:

  In the Database On Table Row operation, what does the Watermark column enable the On Table Row operation to do?

  A. To avoid duplicate processing of records in a database.
  B. To delete the most recent records retrieved from a database to enable database caching
  C. To enable duplicate processing of records in a database
  D. To save the most recent records retrieved from a database to enable database caching
  A. To avoid duplicate processing of records in a database.

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  Explanation

  The correct answer is To avoid duplicate processing of records in a database. If a watermark column is provided, the values taken from that column are used to filter the contents of the next poll, so that only rows with a greater watermark value are returned. If an ID column is provided, this component automatically verifies that the same row is not picked twice by concurrent polls. Mule doc reference : https://docs.mulesoft.com/db-connector/1.8/database- documentation#listener

• Question 222:

  Refer to the exhibit. The Batch Job processes, filters and aggregates records, What is the expected output from the Logger component?

  

  A. [10. 20, 30. 40, 50, 60]
  B. [10. 20] [30, 40] [50, 60]
  C. [20, 40, 60]
  D. [20. 40] [60]
  D. [20. 40] [60]

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  Explanation

  *

  Batch scope has filter criteria which says paylod mod 2 = 0 whch means only 2, 4 and 6 will be in batch scope.

  *

  So payload for each of these will be incremented by 10.

  *

  Aggregator has batch size defined as 2. So it will process in batch of two records.

  *

  Hence option 3 is correct answer.

  [20,40]

  [60]

  Behavior with aggregator configured with fixed size

  In this scenario, the batch step sends the processed records to an aggregator, which starts processing the records and buffering them until the configured aggregator's size is reached. After that, the aggregator sends the aggregated records

  to the stepping queue.

  

  The batch job builds record blocks of the configured block size and sends them to their corresponding batch step for processing. Each batch step receives one or more record blocks and starts processing them in parallel. After the batch step processes a record, the batch step sends the record to the aggregator for further processing. The aggregator continues processing records until the number of aggregated records reaches the configured aggregator's size. https://docs.mulesoft.com/mule-runtime/4.3/batch-processing-concept

• Question 223:

  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
  C. Pick First

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  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 224:

  An API implementation has been deployed to CloudHub and now needs to be governed. IT will not allocate additional vCore for a new Mule application to act as an API proxy. What is the next step to preseive the current vCore usage, but still allow the Mule application to be managed by API Manager?

  A. Register the same API implementation in Runtime Manager to connect to API Manager
  B. Modify the API implementation to use auto-discovery to register with API Manager
  C. Upload the Mule application's JAR file to the API instance in API Manager
  D. Deploy the same API implementation behind a VPC and configure the VPC to connect to API Manager
  B. Modify the API implementation to use auto-discovery to register with API Manager

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  Explanation

  Correct answer is Modify the API implementation to use auto-discovery to register with API Manager API Autodiscovery Configuring autodiscovery allows a deployed Mule runtime engine (Mule) application to connect with API Manager to download and manage policies and to generate analytics data. Additionally, with autodiscovery, you can configure your Mule applications to act as their own API proxy. When autodiscovery is correctly configured in your Mule application, you can say that your application's API is tracked by (green dot) or paired to API Manager. You can associate an API in a Mule setup with only one autodiscovery instance at a given time. MuleSoft Doc Ref : https://docs.mulesoft.com/api-manager/2.x/api-auto-discovery-new- concept

• Question 225:

  Refer to the exhibits.

  

  A web client sends a POST request with the payload {"oid": "1000", "itemid": "AC200", "qty": "4" } to the Mule application. The File Write operation throws a FILE:CONNECTIVITY error. What response message is returned to the web client?

  A. `'FILE:CONNECnvnY'
  B. "ORDER:NOT_CREATED"
  C. "OTHER ERROR"
  D. "File written"
  B. "ORDER:NOT_CREATED"

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  Explanation

• Question 226:

  A company has an API to manage departments, with each department identified by a unique deptld. The API was built with RAML according to MuleSoft best practices. What is valid RAML to specify a method to update the details for a specific department?

  

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

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  Explanation

  URI parameter is basically used to identify a specific resource or resources

  *

  Here we want to update details about specific department, so question is asking 'How to use URI parameter' in RAML

  *

  Correct answer is

  /departments:

  /{deptId}:

  patch:

  https://docs.mulesoft.com/design-center/design-common-problems-raml-10

• Question 227:

  Refer to the exhibit.

  

  The API needs to be updated using the company-wide standard for the Plan data type. The Object data type has already been published in Anypoint Exchange with the global reference . ACME/DataTypes/PlanDataType.raml. What is a valid RAML specification that reuses the Plan data type?

  

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

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  Explanation

  As can be seen in RAML, POST expects input in application/json format which eliminates two of the options as two options are in xml format. Now out of the two remaining options, one has id field in request which is only mentioned for get

  response and not for POST request. Hence id field is not expected in POST request.

  Hence correct answer is

  {

  "name": "GoerdiLa Forge",

  "address": "1 Westland CA",

  "customer_since": "2014-01-04",

  "balance": "4829.29",

  "bank_agend_id": "12556"

  }

• Question 228:

  Refer to the exhibit.

  

  What data is expected by the POST /accounts endpoint?

  

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

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  Explanation

• Question 229:

  A shopping API contains a method to look up store details by department

  To get information for a particular store, web clients will submit requests with a query parameter named department and a URI parameter named storeld.

  What is a valid RAML snippet that supports requests from web clients to get data for a specific storeld and department name?

  

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

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  Explanation

  URI Parameters

  Lets have a look at below example.

  /foos:

  /{id}:

  /name/{name}:

  Here, the braces { } around property names define URI parameters. They represent placeholders in each URI and do not reference root-level RAML file properties as we saw above in the baseUri declaration. The added lines represent the

  resources /foos/{id} and /foos/name/{name}.

  Query Parameters

  Now we'll define a way to query the foos collection using query parameters. Note that query parameters are defined using the same syntax that we used above for data types:

  /foos:

  get:

  description: List all Foos matching query criteria, if provided; otherwise list all Foos

  queryParameters:

  name?: string

  ownerName?: string

  Based on the above information , below is the only option which defines storeid as uri parameter and department as query parameter.

  /{storeId}:

  get:

  queryParameter:

  department:

• Question 230:

  Refer to the exhibits. The Mule application is stopped at the breakpoint in Anypoint Studio.

  A watch expression Is set to the counter variable.

  What value is displayed for this watch expression?

  

  A. 1
  B. 11
  C. 110
  D. null
  A. 1

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  Explanation