100% Free Salesforce DEX660 Practice Test Questions and Answers 2026

Start Learning with the Latest and Real 100% Free Salesforce DEX660 Exam Questions

Page: 1 / 12

Total 60 Questions | Updated On: May 24, 2026

Add To Cart

Question 1

A Mule application need to invoice an API hosted by an external system to initiate a process. The external API

takes anywhere between one minute and 24 hours to compute its process.

Which implementation should be used to get response data from the external API after it completes

processing?

A : Use an HTTP Connector to invoke the API and wait for a response

B : Use a Scheduler to check for a response every minute

C : Use an HTTP Connector inside Async scope to invoice the API and wait for a response

D : Expose an HTTP callback API in Mule and register it with the external system

Answer: D

Question 2

Refer to the exhibit.

A Mute Object Store is configured with an entry TTL of one second and an expiration interval of 30 seconds.

What is the result of the flow if processing between os’store and os:retrieve takes 10 seconds?

A : nullPayload

B : originalPayload

C : OS:KEY_NOT_FOUND

D : testPayload

Answer: A

Question 3

When implementing a synchronous API where the event source is an HTTP Listener, a developer needs to

return the same correlation ID back to the caller in the HTTP response header.

How can this be achieved?

A : Enable the auto-generate CorrelationID option when scaffolding the flow

B : Enable the CorrelationID checkbox in the HTTP Listener configuration

C : Configure a custom correlation policy

D : NO action is needed as the correlation ID is returned to the caller in the response header by default

Answer: D

Question 4

A developer deploys an API to CloudHub and applies an OAuth policy on API Manager. During testing, the

API response is slow, so the developer reconfigures the API so that the out-of-the-box HTTP Caching policy

is applied first, and the OAuth API policy is applied second.

What will happen when an HTTP request is received?

A : In case of a cache hit, both the OAuth and HTTP Caching policies are evaluated; then the cachedresponse is returned to the caller

B : In case of a cache it, only the HTTP Caching policy is evaluating; then the cached response is returnedto the caller

C : In case of a cache miss, only the HTTP Caching policy is evaluated; then the API retrieves the data fromthe API implementation, and the policy stores the data to be cached in Object Store

D : In case of a cache miss, both the OAuth and HTTP Caching policies are evaluated; then the APIretrieves the data from the API implementation, and the policy does not store the data in Object Store

Answer: B

Question 5

Which properties are mandatory on the HTTP Connector configuration in order to use the OAuth 2.0 Authorization Code grant type for authentication?

A : External callback URL, access token URL, client ID response access token

B : Token URL, authorization URL, client ID, client secret local callback URL

C : External callback URL, access token URL, client ID, response refresh token

D : External callback URL, access token URL, local authorization URL, authorization URL, client ID, client secret

Answer: B

Page: 1 / 12

Total 60 Questions | Updated On: May 24, 2026

Add To Cart