Platform-App-Builder Exam Dumps - Salesforce Certified Platform App Builder (Plat-Admn-202)

The correct answer is B. Add the standard Chatter feed component.

To show Chatter on a custom object Lightning record page, the app builder should use the standard Chatter Feed / Chatter component in Lightning App Builder. Salesforce documentation describes adding Chatter components such as Chatter Feed, Chatter Publisher, and Chatter to Lightning record pages, usually after feed tracking is enabled for the object.

A is incorrect because a related list component does not display the Chatter feed.

C and D are incorrect because a custom component or AppExchange component is not required for standard Chatter feed functionality.

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The correct component is the Highlights Panel. More precisely, Salesforce refers to the newer version as the Dynamic Highlights Panel, which displays up to 12 key record fields configured in Lightning App Builder. Since the option list only says Highlights Panel, option B is the exam match.

Path is for guiding users through stages. Accordion is for collapsible sections. A custom Lightning Web Component is not needed because Salesforce provides this functionality declaratively.

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The correct answer is D. Flow.

The requirement is to automatically clear the Phone field on Contact when the Do Not Call checkbox is checked. A record-triggered Flow can run when a Contact is created or updated, check whether Do_Not_Call is true, and then update the triggering Contact record by setting the Phone field to blank. Salesforce Flow supports updating records, including directly updating the record that triggered the flow.

B. Validation rule is incorrect because it can block a save but cannot delete or clear the Phone field automatically.

C. Quick action is manual, not automatic.

A. If-then rule is not the best current Salesforce automation tool for this requirement.

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A roll-up summary field requires a master-detail relationship. Since Galaxy__c and Star__c currently have a lookup relationship, the app builder cannot create a standard roll-up summary field to count related Star__c records. The lookup must be converted to master-detail first, with Galaxy__c as the master and Star__c as the detail. Salesforce Trailhead confirms that roll-up summary fields display values on the master record based on directly related detail records in a master-detail relationship.

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The correct answer is B. Cross-object formula.

Opportunity has a standard relationship to Account, so an app builder can create a formula field on Opportunity that references the parent Account field. Salesforce defines a cross-object formula as a formula that spans related objects and references fields on those related objects.

Because Account_Region__c is a picklist on Account, the Opportunity formula would commonly be a text formula like:

TEXT(Account.Account_Region__c)

Field history tracking only tracks changes, a lookup field would create a relationship rather than display the Account field value, and field-level security controls visibility but does not copy or display the parent field on Opportunity.

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