Free Salesforce DEX401 Exam Questions

Become Salesforce Certified with updated DEX401 exam questions and correct answers

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Total 235 Questions | Updated On: Apr 29, 2026

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Question 1

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 : DTo save the most recent records retrieved from a database to enable database caching

Answer: A

Question 2

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?

A : /orders/{P05555}

B : /orders/order=P05555

C : /orders?order=P05555

D : /orders/P05555

Answer: D

Question 3

What is output of Dataweave flatten function?

A : Object

B : Map

C : Array

D : LInkedHashMap

Answer: C

Question 4

Refer to the exhibits.

The Mule application does NOT define any global error handlers.

The Validation component in the private flow throws an error

What response message is returned to a web client request to the main flow's HTTP Listener?

A : ''Child error'

B : 'Parent error'

C : 'Validation Error'

D : 'Parent completed'

Answer: C

Question 5

Refer to the exhibits.

The Set Payload transformer's value is set to {'year': '2020'}.

What message value should be added to the Logger component to output the message 'The year is 2020', without hardcoding 2020?

A : '#[The year is $(pay load .year)]*

B : The year is #[payload.year]'

C : '#[The year is ' + paytoad.year]'

D : #['The year is '++ payload.year].

Answer: D

Page: 1 / 47

Total 235 Questions | Updated On: Apr 29, 2026

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