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MuleSoft Certified Developer – Level 1 Exam Online Questions

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The MuleSoft Certified Developer – Level 1 exam is a certification exam that measures a candidate’s knowledge and skills in developing and designing MuleSoft applications. The MuleSoft Certified Developer – Level 1 exam is designed to test the candidate’s ability to develop, test, and deploy basic Mule 4 integrations and API implementations.

The real MuleSoft Certified Developer – Level 1 exam contains 60 questions, and each candidate has 2 hours to finish the test. The passing score for the MuleSoft Certified Developer – Level 1 exam is 70%. The exam consists of multiple-choice questions, scenario-based questions, and coding exercises that are meant to test the candidate’s practical knowledge of MuleSoft development. Free MuleSoft Certified Developer – Level 1 exam online questions are below.

Page 1 of 8

1. Refer to the exhibits.

The input array of strings is processed by the batch job that processes, fitters, and aggregates the values.

What is the last message logged by the Logger component after the batch job completes processing?

A)

Option A

Option B

Option C

Option D

2. A mule project contains MySQL database dependency . The project is exported from Anypoint Studio so that it can be deployed to Cloudhub.

What export options needs to be selected to create the smallest deployable archive that will successfully deploy to Cloudhub?

Select both the options 1) Attach project sources 2) Include project module and dependencies

No need to select any of the below options 1) Attach project sources 2) Include project module and dependencies

Select only below option 2) Include project module and dependencies

Select only below option 1) Attach project sources

3. A web client sends a request to http;//localhost:8081?dept=sales.

What is the correct DataWeave expression to access the value of dept?

attributes.queryParams.dept

attributes.dept

message.queryParams.dept

vars.dept

4. 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

Option B

Option C

Option D

5. CORRECT TEXT

Refer to the exhibits.

In the choice router, the When expression for the domestic shipping route is set to "#[payload= "FR"]".

What is the output of logger after the execution of choice router is completed?

"Domestic"

"International"

"US"

A dataweave syntax error (Correct)

6. 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?

*[order,customer]/status

?[order,customer]/status

*/status (Correct)

*status

7. Refer to the exhibit.

The Database Select operation returns five rows from a database.

What is logged by the Logger component?

"Array"

"Object"

"LinkedHashMap"

"CaselnsensitrveHashMap"

8. What does C4E stands for in MuleSoft recommended IT operating model?

Centre for Empowerment

Centre for Engagement

Centre for Enablement

Centre for Excellence

9. To avoid hard-coding values, a flow uses some property placeholders and the corresponding values are stored in a configuration file.

Where does the configuration file's location need to be specified in the Mule application?

The pom.xml file

A global element

The mule-art if act .json file

a flow attribute

10. Refer to the exhibits.

In the request Flow an HTTP Request operation is configured to send an HTTP request with an XML payload. The request is sent to the HTTP Listener in the transform Flow.

That flow transforms the incoming payload into JSON format and returns the response to the HTTP request. The response of the request is stored in a target variable named the Result.

What is the payload at the Logger component after the HTTP Request?

A non-empty Java object

The original XML payload

null

The returned JSON response

Page 2 of 8

11. Why would a Mule application use the ${http.port} property placeholder for its HTTP Listener port when it is deployed to CloudHub?

Allows CloudHub to automatically change the HTTP port to allow external clients to connect to the HTTP Listener

Allows CloudHub to automatically register the application with API Manager

Allows MuleSoft Support to troubleshoot the application by connecting directly to the HTTP Listener

Allows clients to VPN directly to the application at the Mule application's configured HTTP port

12. A REST connect module is generated for a RAML specification. and then the rest connect module is imported in mule application in Anypoint Studio.

For each method of the RAML specification, what does the REST connect module provide?

A scope

A flow

An operation

An event source

13. 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?

/orders/{P05555}

/orders/order=P05555

/orders?order=P05555

/orders/P05555

14. Refer to the exhibits.

What payload and variable are logged at the end of the main flow?

[[5, 10, 15, 20], 1]

[[5, 10, 15, 20], 5]

[[Req5, Req10, Req15, Req20], 5]

[Req5Req10,Req15Req20, 5]

15. Which of the below is not a valid category for connector type?

Gold

Select

Premium

Community

16. Refer to the exhibit.

What is the output payload in the On Complete phase?

summary statistics with NO record data

The records processed by the last batch step: [StepTwol, StepTwo2, StepTwo3]

The records processed by all batch steps: [StepTwostepOnel, stepTwostepOne2, StepTwoStepOne3]

The original payload: [1,2,31

17. Refer to the exhibits.

The Mule application does NOT define any global error handlers.

A web client sends a POST request to the Multi application with this input payload The File Write operation throws a FILECONNECTIVITY error

What response message is returned to the web client?

"ORDER NOT_CREATED"

"OTHER ERROR"

"File written"

"FILECONNECTIVITY"

18. Refer to the exhibits.

How many private flows does APIKIt generate from RAML specification?

19. What is output of Dataweave flatten function?

Object

Map

Array (Correct)

LInkedHashMap

20. What is the purpose of the api:router element in APIkit?

Creates native connectors using a 3rd party Java library

Serves as an API implementation

Validates requests against RAML API specifications and routes them to API implementations

Validates responses returned from API requests and routes them back to the caller

Page 3 of 8

21. Refer to the exhibits.

Set paylaod transformer is set the firstName and lastName of the customer as shown in below images.

What is the correct Dataweave expression which can be added in message attribute of a Logger activity to access firstName (which in this case is Madhav) from the incoming event?

firstName

customer.firstName

vars."customer.firstName"

vars."customer"."firstName"

22. What is not the function of API Gateway?

Determine which traffic is authorized to pass through the API to backend services

Meter the traffic flowing through

Logs all transactions, collecting and tracking analytics data

Specify throttling, security and other policies

23. What path setting is required for an HTTP Listener endpoint to route all requests to an APIkit router?

/(*)

/()

“/*”

24. Refer to the exhibits.

The main flow contains a Flow Reference to the child flow.

A web client sends a GET request to the main flow's HTTP Listener that includes a make query parameter.

What values are accessible in the child flow?

payload

payload make query param

payload model var

payload make query param model var

25. 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?

{ port : p('db.port')}

{ port : {db:port}}

{ port : p['db.port']}

Application property cannot be accessed in Dataweave

26. Refer to the exhibits.

A web client submits a request to http://localhQst:8081 /flights.

What is the result at the end of the flow?

"string"

"Java"

"object"

"XML"

27. What MuleSoft API-led connectivity layer is intended to expose part of a backend database without business logic?

Data layer

Process layer

Experience layer

System layer

28. /{customerId}:

29. Refer to exhibits.

What message should be added to Logger component so that logger prints "The city is Pune" (Double quote should not be part of logged message)?

#["The city is" ++ payload.City]

The city is + #[payload.City]

The city is #[payload.City]

#[The city is ${payload.City}

30. Refer to the exhibits.

The main flow contains an HTTP Request in the middle of the flow.

The HTTP Listeners and HTTP Request use default configurations.

A web client submits a request to the main flow's HTTP Listener that includes query parameters for the pedigree of the piano.

What values are accessible to the Logger component at the end of the main flow?

payload

payload pedigree query params

payload producer var

payload pedigree query params producer var

Page 4 of 8

31. What is minimal requirement in a flow for a Mule application to compile?

Event Source

Event Processors

Error handlers

Source and processors both

32. get:

33. Mule application contains ActiveMQ JMS dependency. Mule application was compiled and run successfully in Anypoint Studio. The mule application must now be exported from Anypoint Studio and shared with other developer.

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

Select only Attach Project Sources only

Select both Attach Project Sources and Include project modules and dependencies option

Select the Include project modules and dependencies option only

De-select both Attach Project Sources and Include project modules and dependencies option

34. What is the output of Dataweave Map operator?

Map

Object

String

Array

35. What are the latest specification of RAML available?

1.2

0.8

36. A Mule project contains a MySQL Database dependency. The project is exported from Anypoint Studio so it can be deployed to CloudHub.

What export options create the smallest deployable archive that will successfully deploy to CloudHub?

What export option create their smallest deployable archive that will successfully deploy to CloudHub?

A)

Option A

Option B

Option C

Option D

37. What should this endpoint return? http://dev.acme.com/api/patients?name=John&surname=Bell

Patient with name as John

Patient with surname as bell

Patients with either name as John or surname as Bell

Patients with name as John and surname as Bell

38. An SLA based policy has been enabled in API Manager.

What is the next step to configure the API proxy to enforce the new SLA policy?

Add new property placeholders and redeploy the API proxy

Add new environment variables and restart the API proxy

Restart the API proxy to clear the API policy cache

Add required headers to the RAML specification and redeploy the new API proxy

39. Refer to the exhibits.

All three of the conditions for the Choice router are true.

What messages are written in the application log?

Route1

Route2

Route1, Route2

Route1, Route2, Default

40. Refer to the exhibits.

A company has defined this Book data type and Book example to be used in APIs.

What is valid RAML for an API that uses this Book data type and Book example?

A)

Option A

Option B

Option C

Option D

Page 5 of 8

41. From which application, Organization Administrators can approve/revoke/delete SLA tier access requests

API Exchange

API Portal

API Gateway

API Manager

42. 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

Option B

Option C

Option D

43. According to MuleSoft, what is the Center for Enablement’s role in the new IT operating model?

Implements line of business projects to enforce common security requirements

Creates and manages discoverable assets to be consumed by line of business developers

Centrally manages partners and consultants to implement line of business projects

Implements line of business projects to enforce common security requirements

44. Refer to the exhibit.

In the execution of the Scatter_Gather, the flow1 route completes after 10 seconds and the flow2 route completes after 20 seconds.

How many seconds does it take for the Scatter_Gather to complete?

45. What is the correct syntax for a Logger component to output a message with the contents of a 3SON Object payload?

The payload is: $(payload)

#["The payload is: " ++ payload]

The payload is: #[payload]

#["The payload is: " + payload]

46. Refer to the exhibit.

How should the WHERE clause be changed to set the city and state values from the configured input parameters?

A)

Option A

Option B

Option C

Option D

47. 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?

examples: !include StudentExample.raml

examples: #import StudentExample.raml

examples: !include examples/StudentExample.raml

examples: #import examples/StudentExample.raml

48. Refer to the exhibits.

Mule application has an HTTP request configuration where host name is hardcoded. Organization is looking to move host and port values to configuration file.

What valid expression can be used to so that HTTP configuration can pick the value from configuration file?

#[training.host]

${http.host}

#{training.host}

${training.host}

49. An API has been created in Design Center.

What is the next step to make the API discoverable?

Publish the API to Anypoint Exchange

Publish the API from inside flow designer

Deploy the API to a Maven repository

Enable autodiscovery in API Manager

50. By default, what happens to a file after it is read using an FTP connector Read operation?

The file is deleted from the folder

The file is moved to a different folder

The file stays in the same folder unchanged

The file is renamed in the same folder

Page 6 of 8

51. How are multiple conditions used in a Choice router to route events?

To route the same event to the matched route of EVERY true condition

To find the FIRST true condition, then distribute the event to the ONE matched route.

None of these

To find the FIRST true condition, then route the same event to the matched route and ALL FOLLOWING routes

52. Refer to the exhibits.

What payload is logged at the end of the main flow?

[order1, order2, order3, order4]

[1, 2, 3, 4]

order4

order1order2order3order4

53. What DataWeave expression transforms the example XML input to the CSV output?

Option A

Option B

Option C

Option D

54. }

55. What is the minimum Cloudhub worker size that can be specified while deploying mule application?

0.2 vCores

0.5 vCores

1.0 vCores

0.1 vCores

56. Which one of them is NOT a flow in Mule?

sync flow

subflow

async sub flow

async flow

57. Refer to the exhibits.

The Set Variable transformer is set with value #[ [ first "Max" last "Mule"} ].

What is a valid DataWeave expression to set as the message attribute of the Logger to access the value "Max" from the Mule event?

vars "customer first"

"customer first"

customer first

vars "customer" "first"

58. An On Table Row Database listener retrieves data from a table that contains record_id, an increasing numerical column.

How should the listener be configured so it retrieves new rows at most one time?

Set the target to store the last retrieved record_id value

Set the ObjectStore to store the last retrieved record_id value

Set the target to the record_id column

Set the watermark column to the record id column

59. Refer to the exhibits.

A web client submits the request to the HTTP Listener.

What response message would be returned to web client?

End

String is not blank

No response would be sent back to client and request will get errored out in Mule

Start

60. 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?

All processing of the batch job stops.

Event processing continues to the next batch step.

Error is ignored

Batch is retried

Page 7 of 8

61. What module and operation will throw an error if a Mule events payload is not number ?

Filter modules Is Number operation

Validation modules Is Number operation

Validation modules Is not Number operation

None of these

62. According to MuleSoft. what is the first step to create a Modern API?

Gather a list of requirements to secure the API

Create an API specification and get feedback from stakeholders

Performance tune and optimize the backend systems and network

Create a prototype of the API implementation

63. Which keyword do you use to create a new function in DataWeave?

function

fun

func

map

64. Refer to the exhibits.

The Set Payload transformer in the addltem child flow uses DataWeave to create an order object.

What is the correct DataWeave code for the Set Payload transformer in the createOrder flow to use the addltem child flow to add a router call with the price of 100 to the order?

lookup( "addltern", { price: "100", item: "router", itemType: "cable" } )

addltem( { payload: { price: "100", item: "router", itemType: "cable" > } )

lookup( "addltem", { payload: { price: "100", item: "router", itemType: "cable" } > )

addltem( { price: "100", item: "router", itemType: "cable" } )

65. An HTTP Request operation sends an HTTP request with a non-empty JSON object payload to an external HTTP endpoint. The response from the external HTTP endpoint returns an XML body. The result is stored in a target named the Result.

What is the payload at the event processor after the HTTP Request?

The XML response body

null

The original JSON request body

A non-empty Java object

66. Refer to the exhibit.

The main flow contains an HTTP Request in the middle of the flow.

The HTTP Listeners and HTTP request use default configurations.

What values are accessible to the Logger at the end of the flow after a web client submit request to http://local:801/order?color=red?

payload

payload quantity var

payload color query param

payload quantity var color query param

67. 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?

Modify the API implementation to use auto-discovery to register with API Manager

Upload the Mule application's JAR file to the API instance in API Manager

Deploy the same API implementation behind a VPC and configure the VPC to connect to API Manager

68. What HTTP method in a RESTful web service is typically used to completely replace an existing resource?

GET

PATCH

PUT

POST

69. Refer to the exhibits.

In the Choice router, the When expression for the domesticShipping route is set to "#[payload = 'FR']".

What is logged after the Choice router completes?

A string with value "FR"

A DataVVeave syntax error

The result of the intemationalShipping flow

The result of the domesticShipoing flow

70. 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?

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

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

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

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

Page 8 of 8

71. What should this endpoint return considering the API is build using standard practices?

http://dev.acme.com/api/patients?year=2021

Patient with id 2021

Patients from year 2021

No patients

All patients

72. What is the difference between a subflow and a sync flow?

No difference

Subflow has no error handling of its own and sync flow does

Sync flow has no error handling of its own and subflow does

Subflow is synchronous and sync flow is asynchronous

73. A web client submits a request to http://localhost:8081?flrstName=john.

What is the correct DataWeave expression to access the firstName parameter?

#[attributes.queryParams.firstName]

#[message.queryParams.hrstName]

#[message.inboundProperties.'http.query.params'.firstName]

#[attributes.'http.query.params'.firstName]

74. Refer to the exhibit.

The input array of strings is passed to the batch job, which does NOT do any filtering or aggregating.

What payload is logged by the Logger component?

Summary report of processed records

[ "Apple", "Banana" ]

[ "Apptel2", "Bananal2" ]

[ "Apptel", "Bananal", 2 ]

75. Refer to the exhibits.

The Mule application implements a REST API that accepts GET requests from web clients on the URLs: http://acme com/order/status and http: Vacme.com/customer/status.

What path value can be set in the HTTP GE~ event source to accept web client requests from both of these URLs?

*[order,customer]/status

*/status

?[order,customer]/status

*status

76. Which of the below functionality is provided by zip operator in DataWeave?

Merges elements of two lists (arrays) into a single list

Used for sending attachments

Minimize the size of long text using encoding.

All of the above

77. Refer to the exhibits.

A web client submits a request to http://localhQst:8081.

What is the structure of the payload at the end of the flow?

A)

Option A

Option B

Option C

Option D

78. Which of the below is not the mandatory configurations for HTTP Listener?

Path

Allowed methods

HTTP port in Connector Configuration

HTTP host in Connector Configuration

MuleSoft Certified Developer – Level 1 Exam Online Questions

MuleSoft Certified Developer – Level 1 Exam Online Questions

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