Free Platform-Developer-I: Salesforce Certified Platform Developer I Exam Questions and Answers
143 verified practice questions for Platform-Developer-I.
The first 10 questions on this page are free to read, answers included — no account and no card. A plan opens the rest of the bank, the full timed practice test and your weak-topic reporting.
Last updated: September 19, 2026
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Question #1
What are two ways for a developer to execute tests in an org?
Select 2 answers.
Please select an optionIncorrectCorrect answer: A, B
Tests can be run from the Developer Console's Test menu or programmatically through the Tooling API runTests call. Bulk API moves data and Metadata API deploys metadata, so neither executes tests.
Was this answer correct?Question #2
Which three steps allow a custom SVG to be included in a Lightning web component? Choose 3 answers
Select 3 answers.
Please select an optionIncorrectCorrect answer: A, B, C
Upload the SVG as a static resource, import it in JavaScript, expose it through a getter, and bind that getter in the template. A template cannot reference the imported resource directly.
Was this answer correct?Question #3
The following automations already exist on the Account object; • A workflow rule that updates a field when a certain criteria is met • A custom validation on a field • A How that updates related contact records A developer created a trigger on the Account object. What should the developer consider while testing the trigger code?
Please select an optionIncorrectCorrect answer: D
A workflow field update re-saves the account, so the trigger can fire again on that update within the same transaction and must handle repeated execution. Workflow field updates do not re-run validation rules.
Was this answer correct?Question #4
When using SalesforceDX, what does a developer need to enable to create and manage scratch orgs?
Please select an optionIncorrectCorrect answer: B
https://developer.salesforce.com/docs/atlas.en-us.sfdx_dev.meta/sfdx_dev/sfdx_dev_scratch_orgs.htm When using SalesforceDX, a developer needs to enable Dev Hub in order to create and manage scratch orgs. A Dev Hub is a special type of org used by developers to store source code and other development-related artifacts. It is also used to create and manage scratch orgs, which are temporary orgs used for development and testing. Reference: https://developer.salesforce.com/docs/atlas.en-us.sfdx_dev.meta/sfdx_dev/sfdx_dev_intro.htm
Was this answer correct?Question #5
A developer created a child Lightning web component nested inside a parent Lightning web component, parent component needs to pass a string value to the child component. In which two ways can this be accomplished? Choose 2 answers
Select 2 answers.
Please select an optionIncorrectCorrect answer: C, D
Data flows from parent to child through @api public properties or by calling a public @api method on the child. Custom events travel upward from child to parent, and an Apex controller is not a component communication channel.
Was this answer correct?Question #6
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?
Please select an optionIncorrectCorrect answer: A
Making Engineering_Support__c the detail of Opportunity allows many support records per opportunity and lets a roll-up summary aggregate them on the opportunity. A lookup from Opportunity down cannot roll up child values.
Was this answer correct?Question #7
Cloud kicks has a muli-screen flow its call center agents use when handling inbound service desk calls. At one of the steps in the flow, the agents should be presented with a list of order number and dates that are retrieved from an external odrer management system in real time and displayed on the screen. What shuold a developer use to satisfy this requirement?
Please select an optionIncorrectCorrect answer: A
An @InvocableMethod performs the HTTP callout to the order management system and returns the order numbers and dates that the flow screen displays. Outbound messages and Apex REST classes serve messaging, not flow screen data.
Was this answer correct?Question #8
Since Aura application events follow the traditional publish-subscribe model, which method is used to fire an event?
Please select an optionIncorrectCorrect answer: C
An Aura event is fired by calling fire() on the event instance, as in cmp.getEvent('myEvent').fire(). emit, registerEvent, and fireEvent belong to other frameworks.
Was this answer correct?Question #9
A developer wants to mark each Account in a List<Account> as either or Inactive based on the LastModified field value being more than 90 days. Which Apex technique should the developer use?
Please select an optionIncorrectCorrect answer: D
Looping over the accounts and using if/else inside sets each status in one pass. A switch statement only compares discrete values, so it cannot evaluate a date comparison.
Was this answer correct?Question #10
For which three items can a trace flag be configured? Choose 3 answers
Select 3 answers.
Please select an optionIncorrectCorrect answer: C, D, E
A trace flag can target a user, a specific Apex class, or an Apex trigger. Visualforce and Process Builder are not traceable entities.
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