Free DEX-450 Mock Exam – Practice Online Confidently

Increase your chances of passing the Salesforce DEX-450 exam questions on your first try. Practice with our free online DEX-450 exam mock test designed to help you prepare effectively and confidently.

Exam Code: DEX-450
Exam Questions: 387
Programmatic Development using Apex and Visualforce in Lightning Experience (WI25)
Updated: 24 Aug, 2026
Question 1

What are two characteristics related to formulas? Choose 2 answers.

Options :
Answer: B,C

Question 2

Ursa Major Solar has a custom object, serviceJob-o, with an optional Lookup field to Account calledpartner-service-Provider_c.The TotalJobs-o field on Account tracks the total number of serviceJob-o records to which a partner serviceprovider Account is related.What is the most efficient way to ensure that the Total job_o field kept up to data?

Options :
Answer: A

Question 3

A custom object Trainer_c has a lookup field to another custom object Gym___c.
Which SOQL query will get the record for the Viridian City gym and it's trainers?

Options :
Answer: A

Question 4

When a user edits the Postal Code on an Account, a custom Account text field named 'Timezone' must be update based on the values in a PostalCodeToTimezone__c custom object. How should a developer implement this feature?

Options :
Answer: B

Question 5

An org has two custom objects:
* Plan_c, that has a master-detail relationship to the Account object.
* Plan_item_c, that has a master-detail relationship to the plan_C object.
What should a developer use to create a Visualforce section in the Account page layout that displays all of the plan.. Account and all of the Plan_item_c records related to those plan_c records.

Options :
Answer: C

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