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Free TVB-450 Exam Braindumps
Trailhead Virtual Bootcamp for Platform Developer I Questions 46–50 (page: 11)

Updated On: 10-Feb-2026
Page 11 of 31
PDF with 298 Questions

A developer needs to have records with specific field values in order to test a new Apex class.
What should the developer do to ensure the data is available to the test?

  1. Use Anonymous Apex to create the required data.
  2. Use Test.loadDataO < > and reference a CSV file in a static resource.
  3. Use SOQL to query the org for the required data.
  4. Use Test.loadDataO and reference a JSON file in Documents.

Answer(s): B



How can a developer check the test coverage of active Process Builder and Flows deploying them in a Changing Set?

  1. Use the Flow properties page.
  2. Use the code Coverage Setup page
  3. Use the Apex testresult class
  4. Use SOQL and the Tooling API

Answer(s): D



Universal Containers has large number of custom applications that were built using a third-party javaScript framework and exposed using Visualforce pages. The Company wants to update these applications to apply styling that resembles the look and feel of Lightning Experience.
What should the developer do to fulfill the business request in the quickest and most effective manner?

  1. Incorporate the Salesforce Lightning Design System CSS stylesheet into the JavaScript applications.
  2. Rewrite all Visualforce pages asLightning components.
  3. Set the attribute enableLightning to true in the definition.
  4. Enable Available for Lightning Experience, Lightning Communities, and the mobile app on Visualforce pages used by the custom application.

Answer(s): A



Which two are best practices when it comes to component and application event handling? (Choose two.)

  1. Reuse the event logic in a component bundle, by putting the logic in the helper.
  2. Use component events to communicate actions that should be handled at the application level.
  3. Handle low-level events in the event handler and re-fire them as higher-level events.
  4. Try to use application events as opposed to component events.

Answer(s): A,C



A developer wrote Apex code that calls out to an external system. How should a developer write the test to provide test coverage?

  1. Write a class that extends HTTPCalloutMock.
  2. Write a class that implements the HTTPCalloutMock interface.
  3. Write a class that implements the WebserviceMock interface.
  4. Write a class that extends WebserviceMock

Answer(s): B



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