Free Salesforce DEX660 Exam Questions

Become Salesforce Certified with updated DEX660 exam questions and correct answers

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Total 60 Questions | Updated On: Sep 23, 2026

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Question 1

The flow is invoicing a target API. The API’s protocol is HTTPS. The TLS configuration in the HTTP

Request Configuration global element is set to None. A web client submits a request to

http:localhost:8081/vehicles.

If the certificate of the target API is signed by a certificate authority (CA), what is true about the HTTP

Request operation when the flow executes?

A : The HTTP Request operation will succeed if the CA’S certificate is present in the JRE’s default keystore

B : The HTTP Request operation will succeed if the CA’s certificate is present in the JRE’s default truststore.

C : The HTTP Request operation will always succeed regardless of the CA

D : The HTTP Request operation will always fail regardless of the CA

Answer: B

Question 2

A mule application exposes and API for creating payments. An Operations team wants to ensure that the Payment API is up and running at all times in production. Which approach should be used to test that the payment API is working in production?

A : Create a health check endpoint that listens on a separate port and uses a separate HTTP Listener configuration from the API

B : Configure the application to send health data to an external system

C : Create a health check endpoint that reuses the same port number and HTTP Listener configuration as the API itself

D : Monitor the Payment API directly sending real customer payment data

Answer: A

Question 3

A Mule application deployed to a standardalone Mule runtime uses VM queues to publish messages to be

consumed asynchronously by another flow.

In the case of a system failure, what will happen to in-flight messages in the VM queues that have been

consumed?

A : For nay type of queue, the message will be processed after the system comes online

B : For persistent queues, the message will be processed after the system comes online

C : For transient queues, the message will be processed after the system comes online

D : For any type of queue, the message will be lost

Answer: B

Question 4

A Mule API receives a JSON payload and updates the target system with the payload. The developer uses

JSON schemas to ensure the data is valid.

How can the data be validation before posting to the target system?

A : Use a DataWeave 2.09 transform operation, and at the log of the DataWeave script, add:%dw 2.0Import.json-moduls

B : Using the DataWeave if Else condition test the values of the payload against the examples included inthe schema

C : Apply the JSON Schema policy in API Manager and reference the correct schema in the policyconfiguration

D : Add the JSON module dependency and add the validate-schema operation in the flow, configured toreference the schema

Answer: D

Question 5

The HTTP Request operation raises an HTTP CONNECTIVITY error.

Which HTTP status code and body are returned to the web client?

A : HTTP Status Code:200.Body ‘Error in processing your request

B : HTTP Status Code:500.Body ‘The HTTP CONNECTIVITY Error description

C : HTTP Status Code:500.Body ‘Error in processing your request

D : HTTP Status Code:500.Body ‘Error in processing your request

Answer: C

Page: 1 / 12

Total 60 Questions | Updated On: Sep 23, 2026

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