salesforce platform developer 1 practice exam Intermediate Practice Exam: Medium Difficulty 2025

A developer is building a screen flow that collects a numeric input and then calls an Apex action to calculate a discount. In testing, some users enter non-numeric characters, causing the Apex action to throw an exception. What is the best way to prevent this while keeping the solution declarative where possible?

An org has a custom object Invoice__c with a lookup to Account. When an Invoice__c is inserted, the system should update a field on the related Account with the date of the most recent invoice. Invoices can be inserted in bulk via API (up to 200 at a time). What Apex approach best follows bulk and governor limit best practices?

A Lightning Web Component displays a list of Opportunities and allows inline edits to the StageName field. Users report that sometimes their changes are overwritten when another user updates the same Opportunity around the same time. What should the developer do to better handle concurrent updates?

A developer needs to ensure a unit test can run in any org without relying on existing Account records. The code under test queries Accounts by Name. What should the developer do in the test class to make it reliable and isolated?

A company uses a custom object Project__c with a master-detail relationship to Account. They need to report on Projects and include Account fields, and they also want Projects to be deleted automatically when the Account is deleted. Which data model best meets these requirements?

A developer wrote an Apex trigger that updates a related record. When users edit a record in the UI, they occasionally see 'CANNOT_INSERT_UPDATE_ACTIVATE_ENTITY' with a message indicating maximum trigger depth. What is the most likely cause and best fix?

A Lightning Web Component needs to display a list of Cases and allow users to filter by Status. The list should update automatically when the filter changes, and the data should be cacheable for performance. Which approach best meets these requirements?

A developer needs to deploy changes that include a new Apex class and an updated trigger. The deployment fails because tests are failing in the target org due to unhandled data assumptions. What is the best practice to prevent these failures and improve deployment reliability?

A developer needs to ensure users can only see and edit records they own in a custom object Expense__c, but system processes should still be able to update records regardless of user permissions. Which design best fits these requirements?

A developer is writing a trigger handler that performs a callout to an external service when a record is updated. The callout must occur only after the record is successfully committed to the database. What is the best solution?