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Free Salesforce DEX-450 Exam Questions

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  • Salesforce DEX-450 Exam Questions
  • Provided By: Salesforce
  • Exam: Programmatic Development using Apex and Visualforce in Lightning Experience (WI25)
  • Certification: Salesforce Platform Developer I
  • Total Questions: 387
  • Updated On: Mar 25, 2025
  • Rated: 4.9 |
  • Online Users: 774
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  • Question 1
    • A developer created these three Rollup Summary fields in the custom object, Project_ct,

      Other-Image-22e72623c-7933-4a63-ad4b-6109b9ccd8d2

      The developer is asked to create a new field that shows the ratio between rejected and approved timesheets for a given project.
      Which should the developer use to Implement the business requirement in order to minimize maintenance overhead?

      Answer: B
  • Question 2
    • Managers at Universal Containers want to ensure that only decommissioned containers are able to be deletedin the system. To meet the business requirement a Salesforce developer adds "Decommissioned" as a picklistvalue for the Status _c custom field within the Container _c object.Which two approaches could a developer use to enforce only Container records with a status of"Decommissioned" can be deleted?Choose 2 answers

      Answer: B,D
  • Question 3
    • A developer created a trigger on a custom object. This custom object also has some dependent pick lists.

      According to the order of execution rules, which step happens first?


      Answer: D
  • Question 4
    • A developer is designing a new application on the Salesforce platform and wants to ensure it can support

      multiple tenants effectively.

      Which design framework should the developer consider to ensure scalability and maintainability?


      Answer: D
  • Question 5
    • A developer is tasked with performing a complex validation using Apex as part of advanced business logic. certain criteria are met for a PurchaseOrder, the developer must throw a custom exception.
      What is the correct way for the developer to declare a class that can be used as an exception?

      Answer: B
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