Free TVB-450 Exam Braindumps
Trailhead Virtual Bootcamp for Platform Developer I Questions 61–65 (page: 14)

Updated On: 10-Feb-2026

Universal Containers has a support process that allows users to request support from its engineering team using a custom object, Engineering_Support__c.
Users should be able to associate multiple engineering_Support__c records to a single Opportunity record.
Additionally, aggregate Information about the Engineering_support__c records should be shown on the
Opportunity record.
What should a developer Implement to support these requirements?

  1. Master-detail field from Engineering_Support__c to Opportunity.
  2. Master-detail field from Opportunity to Engineering_Support__c
  3. Lookup field from Engineering_support__c to Opportunity
  4. Lookup field from Opportunity to Engineering_Support__c

Answer(s): A



A developer is asked to prevent anyone other than a user with Sales Manager profile from changing the Opportunity Status to Closed Lost if the lost reason is blank.
Which automation allows the developer to satisfy this requirement in the most efficient manner?

  1. A record trigger flow on the Opportunity object
  2. An Apex trigger on the Opportunity object
  3. approval process on the Opportunity object
  4. An error condition formula on a validation rule on Opportunity

Answer(s): D



Which two events need to happen when deploying to a production org? Choose 2 answers

  1. All triggers must have at least 1% test coverage.
  2. All Apex code must have at least 75% test coverage.
  3. All triggers must have at least 75% test coverage.
  4. All test and triggers must have at least 75% test coverage combined

Answer(s): A,B



Which three operations affect the number of times a trigger can fire? Choose 3 answers

  1. Process Flows
  2. Workflow Rules
  3. Criteria-based Sharing calculations
  4. Email messages
  5. Roll-Up Summary fields

Answer(s): A,B,E



A developer needs to implement a custom SOAP Web Service that is used by an external Web Application. The developer chooses to Include helper methods that are not used by the Web Application In the Implementation of the Web Service Class.
Which code segment shows the correct declaration of the class and methods? A)



B)



C)



D)

  1. Option A
  2. Option B
  3. Option C
  4. Option D

Answer(s): C



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