MuleSoft MCD-Level-1 Exam Dumps

MuleSoft Certified Developer - Level 1 (Mule 4)

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Exam Code	MCD-Level-1
Exam Name	MuleSoft Certified Developer - Level 1 (Mule 4)
Questions	235 Questions Answers With Explanation
Update Date	06, 13, 2026
Price	Was : $81 Today : $45 Was : $99 Today : $55 Was : $117 Today : $65

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Demo Questions

Question # 1

A function named newProdCode needs to be defined thataccepts two input parameters, an integer value for itemID and a string value for productCategory, and returns a new product code.What is the correct DataWeave code to define the newProdCode function?

A. fun newProdCode{itemID: Number, productCategory: String) —> "PC-" ++ productCategory ++ (itemID as String)
B. fun newProdCode(itemID: Number, productCategory: String) = "PC-" ++productCategory ++ (itemID as String)
C. function newProdCode(itemID: Number, productCategory: String) ="PC-" ++ productCategory++ (itemID as String)
D. var newProdCode(itemID: Number, productCategory: String) ->"PC-" ++ productCategory ++ (itemID as String)

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Question # 2

A web client submits a request tohttp://localhost:8081/books/0471767840. The value"0471767840" is captured by a Set Variable transformer to a variable named booklSBN.What is the DataWeave expression to access booklSBN later in the flow?

A. booklSBN
B. attributes.booklSBN
C. flowVars.booklSBN
D. vars. booklSBN

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Question # 3

Why would a Muleapplication use the ${http.port} property placeholder for its HTTPListener port when it is deployed to CloudHub?

A. Allows CloudHub to automatically change the HTTP port to allow external clients to connect to the HTTP Listener
B. Allows CloudHub to automatically register the application with API Manager
C. Allows MuleSoft Support to troubleshoot the application by connecting directly to the HTTP Listener
D. Allows clients to VPN directly to the application at the Mule application's configured HTTP port

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Question # 4

What is the output type of the DataWeave map operator?

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

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Question # 5

A web client submits a request to http://localhost:8081?accountType=personal. The query parameter is captured using a Set Variable transformer to a variable named accountType.What is the correct DataWeave expression to log accountType?

A. Account Type: #[flowVars.accountType]
B. Account Type: #[message.inboundProperties.accountType]
C. Account Type: # [attributes.accountType]
D. Account Type: #[vars.accountType]

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Question # 6

A Database On Table Row listener retrieves data from a CUSTOMER table that contains a primary key userjd column and an increasing kxjin_date_time column. Neither columnallows duplicate values.How should the listener be configured so it retrieves each row at most one time?

A. Set the watermark column to the bgin_date_time column
B. Set the target value to the last retrieved login_date_time value
C. Set the target value to the last retrieved user_jd value
D. Set the watermark column to the user_Id column

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Question # 7

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?

A. The XML response body
B. null
C. The original JSON request body
D. Anon-empty Java object

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Question # 8

In an application network. If the implementation but not the interface of a product API changes, what needs to be done to the other APIs that consume the product API?

A. The applicationsassociated with the other APIs must be restarted
B. The applications associated with the other APIs must be recoded
C. The other APIs must be updated to consume the updated product API
D. Nothing needs to be changed in the other APIs or their associated applications

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Question # 9

A Mule application contains a global error handler configured tocatch any errors.Where must the global error handler be specified so that the global error handler catches all errors from flows without their own error handlers?

A. A configuration properties file
B. Nowhere, the global error handler is automatically used
C. A global element
D. The pom.xml file

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Question # 10

A web client sends a request to http;//localhost:8081?dept=sales. What is the correct DataWeave expression to access the value of dept?

A. attributes.queryParams.dept
B. attributes.dept
C. message.queryParams.dept
D. vars.dept

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Question # 11

A web client submits a request to http://localhost:8081?flrstName=john. What is the correctDataWeave expression to access the firstName parameter?

A. #[attributes.queryParams.firstName] 
B. #[message.queryParams.hrstName]
C. #[message.inboundProperties.'http.query.params'.firstName]
D. #[attributes.'http.query.params'.firstName]

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Question # 12

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?

A. Set the target tostore the last retrieved record_id value
B. Set the ObjectStore to store the last retrieved record_id value
C. Set the target to the record_id column
D. Set the watermark column to the record id column

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Question # 13

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

A. The file is deleted from the folder
B. The file is moved to a different folder
C. The file stays in the same folder unchanged
D. The file is renamed in the same folder

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Question # 14

An API specification is designed using RAML. What is the next step to create a REST Connector from this API specification? 

A. Download the API specification and build the interface using APIkit 
B. Publish the API specification to Any pointExchange 
C. Implement the API specification using flow designer in Design Center 
D. Add the specification to a Mule project's src/main/resources/api folder 

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Question # 15

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 fromthe 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

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Question # 16

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. Whatis 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 useauto-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 

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Question # 17

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'slocation need to be specified in the Mule application?

A. The pom.xml file 
B. A global element 
C. The mule-art if act .json file D. a flow attribute Answer: B 
D. a flow attribute 

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Question # 18

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

A. /(*) 
B. / 
C. /() 
D. /* 

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Question # 19

An app team is developing a mobile banking app. It took them two months to create their own APIs to access transaction information from a central database. The app team later found outthat another team had already built an API that accesses the transaction information they need.According to MuleSoft, what organization structure could have saved the app team two months of development time? 

A. Center of Excellence 
B. Center for Enablement 
C. MuleSoft Support Center 
D. Central API Review Board 

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Question # 20

A Mule flow has three Set Variable transformers. What global data structure can be used to access the variables? 

A. Mule event attributes 
B. Mule event message 
C. Mule application properties 
D. Mule event 

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Question # 21

What execution model is used by For Each and Batch Job scopes? 

A. For Each is single-threaded and Batch Job is multi-threaded 
B. Both are single-threaded 
C. Both aremulti-threaded 
D. Batch Job is single-threaded and For Each Is multi-threaded 

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Question # 22

A company has an API to manage purchaseorders, 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 

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Question # 23

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

A. Gather a list of requirements to secure the API 
B. Create an API specification and get feedback from stakeholders 
C. Performance tune and optimize the backend systems and network 
D. Create a prototype of the API implementation 

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Question # 24

What is the correct syntax for a Logger component to output a message with the contents of a 3SON Object payload? A. The payload is: $(payload) B. #["The payload is: " ++ payload] C. The payload is: #[payload] D. #["The payload is: " + payload] Answer: B

 A. The payload is: $(payload) 
B. #["The payload is: " ++ payload] 
C. The payload is: #[payload] 
D. #["The payload is: " + payload] 

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Question # 25

ARAML specification is defined to manage customers with a unique identifier for each customer record. What URI does MuleSoft recommend to uniquely access the customer identified with the unique ID 1234? 

A. /customers?custid=true&custid=1234 
B. /customers/1234 
C. /customers/custid=1234
D. /customers?operation=get&custid=1234 

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Question # 26

An SLA based policy has been enabled in API Manager. What is the next step to configure the API proxy to enforce the newSLA policy? 

A. Add new property placeholders and redeploy the API proxy 
B. Add new environment variables and restart the API proxy 
C. Restart the API proxy to clear the API policy cache
D. Add required headers to the RAML specification and redeploy the newAPI proxy 

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Question # 27

A Mule application contains two HTTP Listeners, each configured for different API endpoints: http://acme.com/apis/orders and http: //acme .com/a pis/customers. What base path value should be set in an HTT? Listener config element so that it can be used to configure both HTTP Listeners? 

A. /apis/?
B. /apis/ 
C. /apis/orders|customers 
D. /apis/* 

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Question # 28

What payload is returned by a Database SELECT operation that does not match any rows in the database? 

A. false 
B. null 
C. Exception 
D. Empty Array 

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