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

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

• Question 141:

  A Mule application contains an ActiveMQ JMS dependency. The Mule application was developed in Anypoint Studio and runs successfully in Anypoint Studio.

  The Mule application must now be exported from Anypoint Studio and shared with another developer.

  What export options create the smallest JAR file that can be imported into the other developer's Anypoint Studio and run successfully?

  

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

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  Explanation

• Question 142:

  Refer to the exhibit.

  

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

  

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

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  Explanation

• Question 143:

  Refer to the exhibits. The mule application implements a REST API that accepts GET request from two URL's which are as follows 1) http://acme.com/order/status 2) http://acme.com/customer/status What path value should be set in HTTP listener configuration so that requests can be accepted for both these URL's using a single HTTP listener event source?

  

  A. *[order,customer]/status
  B. ?[order,customer]/status
  C. */status
  D. *status
  C. */status

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  Explanation

  Correct answer is */status as it is the correct way to use wildcards while configuring path value in HTTP listener

• Question 144:

  In the execution of scatter gather, the "sleep 2 sec" Flow Reference takes about 2 sec to complete, and the "sleep 8 sec" Flow Reference takes about 8 sec to complete.

  About how many sec does it take from the Scatter-Gather is called until the "Set Payload" transformer is called?

  

  B. 0

  C. 2

  D. 10

  Correct Answer. A
  A

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  Explanation

  Correct answer is 8 as events are processed in parallel in case of scatter gather router

• Question 145:

  Refer to the exhibits.

  

  A Mule application is being developed to process web client POST requests with payloads containing order information including the user name and purchased items The Shipping connector returns a shipping address for the input payloads

  user name The Shipping connector's Shipping Address operation is configured with a target named shippingAddress.

  The Set Payload transformer needs to set an item key equal to the items value from the original received payload and a shippinglnfo key equal to the the ShippingAddress operation's response

  What is a straightforward way to property configure the Set Payload transformer with the required data?

  

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

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  Explanation

• Question 146:

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

  To get the information for a particular store, web clients will submit requests with a query parameter named department and uri parameter named storeId

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

  A. 1./department: 2.get: 3.uriParameter: 4.storeId:
  B. 1.get: 2.uriParameter: 3.{storeId}: 4.queryParameter: 5.department:
  C. 1.get: 2.queryParameter: 3.department: 4.uriParameter: 5.{storeId}:
  D. 1./{storeId}: 2.get: 3.queryParameter: 4.department:
  D. 1./{storeId}: 2.get: 3.queryParameter: 4.department:

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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 147:

  A flow needs to combine and return data from two different data sources. It contains a Database SELECT operation followed by an HTTP Request operation. What is the method to capture both payloads so the payload from the second request does not overwrite that from the first?

  A. Put the Database SELECT operation inside a Cache scope
  B. Put the Database SELECT operation inside a Message Enricher scope
  C. Nothing, previous payloads are combined into the next payload
  D. Save the payload from the Database SELECT operation to a variable
  D. Save the payload from the Database SELECT operation to a variable

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  Explanation

  Correct answer is Save the payload from the Database SELECT operation to a variable Response from HTTP request will override the payload and hence response of database SELECT can be lost. Best way to preserve is to assign payload of first operation to variable using TransformMessage.

• Question 148:

  How many Mule applications can run on a CloudHub worker?

  A. At most one
  B. At least one
  C. Depends
  D. None of these
  A. At most one

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  Explanation

• Question 149:

  What is not the function of API Gateway ?

  A. Determine which traffic is authorized to pass through the API to backend services
  B. Meter the traffic flowing through
  C. Logs all transactions , collecting and tracking analytics data
  D. Specify throttling , security and other policies
  D. Specify throttling , security and other policies

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  Explanation

  Correct answer is Specify throttling , security and other policies MuleSoft Doc Ref : https://docs.mulesoft.com/api-manager/2.x/api-gateway-capabilities- mule4 API Gateway is responsible for below functions. 1) Determine which traffic is authorized 2) Meter the traffic 3) Logs transaction 4) Apply throttling and other policies (Not specifying. These are specified in API Manager)

  

• Question 150:

  Refer to the exhibits.

  

  The Batch Job scope contains two Batch Steps scopes with different accept expression.

  The input payload is passed to the Batch Job scope.

  After the entire payload is processed by the batch job scope , what messages have been logged by the Logger component?

  A. 1.{amount=140} 2.{amount=102} 3.{step2amount=100}
  B. 1.{amount=140} 2.{amount=102} 3.{step2amount=100} 4.{step2amount=40}
  C. 1.{amount=140} 2.{amount=102} 3.{step2amount=100} 4.{step2amount=140}
  D. 1.{amount=140} 2.{amount=102} 3.{step2amount=100} 4.{step2amount=140} 5.{step2amount=102}
  D. 1.{amount=140} 2.{amount=102} 3.{step2amount=100} 4.{step2amount=140} 5.{step2amount=102}

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  Explanation

  This question validates you knowledge on Batch Processing. Before we analyze the question , lets revise a bit about batch filters.

  Batch Filters

  You can apply one or more filters as attributes to any number of batch steps.Imagine a batch job whose first batch step checks if a Salesforce contact exists for a record, and a second batch step that updates each existing Salesforce contact

  with new information. You can apply a filter to the second batch step to ensure it only processes records that didn't fail during the first batch step.By having batch steps accept only some records for processing, you streamline the batch job so

  the Mule runtime engine can focus only on the relevant data for a particular batch step.

  A batch step uses two attributes to filter records:

  acceptExpression

  acceptPolicy

  Each batch step can accept one acceptExpression and one acceptPolicy attributes to filter records.

  Use the acceptExpression attribute to process only records that evaluate to true; if the record evaluates to false, the batch step skips the record and sends it to the next one. In other words, the records with an accept expression that resolves

  to false are the ones that Mule filters out.

  The example below filters out all records where the age is less than 21; the batch step does not process those records.

  ...

  Mule Ref Doc : Refining Batch Steps Processing | MuleSoft Documentation As we are clear with above concepts , now lets understand this solution step by step.

  1) Batch Step (Less than 50)

  Accept expression for this batch step is less than 50. Hence elements which will go in this batch step are amount value 40 and 2. Hence output of logger in first batch step is {amount=140} {amount=102}

  2) Batch Step (Greater than 20)

  Accept condition for this batch step is greater than 20. Note that input amount values for this batch step are 100 , 140 and 102 (last two values have been updated in batch step less than 50) As all values satisfy this condition out put of second

  logger is {step2amount=100}

  {step2amount=140}

  {step2amount=102}

  Hence correct answer to this question is

  

  {amount=140}

  {amount=102}

  {step2amount=100}

  {step2amount=140}

  {step2amount=102}

  2) Batch Step (Greater than 20)

  Accept condition for this batch step is greater than 20. Note that input amount values for this batch step are 100 , 140 and 102 (last two values have been updated in batch step less than 50) As all values satisfy this condition out put of second

  logger is {step2amount=100}

  {step2amount=140}

  {step2amount=102}

  Hence correct answer to this question is

  

  {amount=140} {amount=102} {step2amount=100} {step2amount=140} {step2amount=102}