Salesforce Certified MuleSoft Developer (Mule-Dev-201) Exam Practice Test Instant Access

Question 1

Refer to the exhibit.

What is the response to a web client request to http://localhost:8081?

AAfter

Bbefore

CValidation Error

Dnull

Answer : C

Question 2

Refer to the exhibits.

The web client sends a POST request to the ACME Order API with an XML payload. An error is returned.

What should be changed in the request so that a success response code is returned to the web client?

ASet a request header with the name Content-Type to a value of applicatron/octet-stream

BSet a request header with the name Content-Type to a value of application/xml

CSet a response header with the name Content-Type to a value of applkation/xml

DSet a response header with the name Content-Type to a value of application/octet-stream

Answer : B

The HTTP 415 Unsupported Media Type client error response code indicates that the server refuses to accept the request because the payload format is in an unsupported format. The format problem might be due to the request's indicated Content-Type or Content-Encoding , or as a result of inspecting the data directly. As per RAML input is expected in application/xml.

Hence correct answer is Set a request header with the name Content-Type to a

Question 3

Refer to the exhibits.

The Batch job processes an array of strings.

What information is logged by the logger component after the batch job scope completes processing of the input payload?

ATotal Records Processed: 3
Successful Records: 3
Failed Records: 0
payload: ['A','B','C']

B['A','B','C']

CTotal Records Processed: 3
Successful Records: 3
Failed Records: 0
payload: ['a', 'b', 'c']

DTotal Records Processed: 3
Successful Records: 3
Failed Records: 0

Answer : D

Correct answer is as below.On complete phase only has access to batch job result statistics and payload is not available.

Total Records Processed: 3

Successful Records: 3

Failed Records: 0

On Complete

During this phase, you can optionally configure the runtime to create a report or summary of the records it processed for the particular batch job instance. This phase exists to give system administrators and developers some insight into which records failed to address any issues that might exist with the input data.

Sample output is as below

Mule Ref Doc :https://docs.mulesoft.com/mule-runtime/4.3/batch-processing-concept#on-complete

Question 4

Pick the component with which DataWeave is tightly integrated.

AAll APIs

BMule runtime

CExchange

DFlow Designer

Answer : B

Correct answer is Mule runtime

DataWeave is the MuleSoft expression language for accessing and transforming data that travels through a Mule app. DataWeave is tightly integrated with the Mule runtime engine, which runs the scripts and expressions in your Mule app.

Mule Doc Reference : https://docs.mulesoft.com/mule-runtime/4.3/dataweave

Question 5

A Batch Job scope has five batch steps. An event processor throws an error in the second batch step because the input data is incomplete. What is the default behavior of the batch job after the error is thrown?

AAll processing of the batch job stops.

BEvent processing continues to the next batch step.

CError is ignored

DBatch is retried

Answer : A

In case of an error , batch job completes in flight steps and stops further processing.

MuleSoft Doc Ref : Handling Errors During Batch Job | MuleSoft Documentation

The default is all processing will stop but we can change it by Max Failed Record field.

General -> Max Failed Records: Mule has three options for handling a record-level error: Finish processing, Continue processing and Continue processing until the batch job accumulates a maximum number of failed records. This behavior can be controlled by Max Failed Records.

The default value is Zero which corresponds to Finish processing.

The value -1, corresponds to Continue processing.

The value +ve integer, corresponds to Continue processing until the batch job accumulates a maximum number of failed records

Question 6

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?

APut the Database SELECT operation inside a Cache scope

BPut the Database SELECT operation inside a Message Enricher scope

CNothing, previous payloads are combined into the next payload

DSave the payload from the Database SELECT operation to a variable

Answer : D

Correct answer isSave 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 7

What of the below is not a feature of API Notebooks?

AAPI documentation

BCreates a client for an API

CCreates a mock service for an API

DPerform authenticated live calls on a real server

Answer : C

Correct answer is Creates a mock service for an API

API Notebook is an open source, shareable web application for API documentation, interactive API tutorial and example generatation, and a client for your API endpoints. Using API Notebook, you can make requests and quickly transform the responses into readable format. However it cannot be used to mock service for an API.

MuleSoft Doc Ref : https://docs.mulesoft.com/api-manager/1.x/api-notebook-concept