Given a Set of Requirements, Determine the Appropriate Data Model. PLATFORM-DEVELOPER-I Practice Questions (Page 3)

Questions 11–15

1. 11foundation · easy

   When designing a data model for a large volume of records, which consideration is most important for performance?

   • ADesigning efficient queries and indexing
   • BAvoiding relationships entirely
   • CUsing formula fields instead of data fields
   • DMinimizing the number of custom fields
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2. 12expert · hard

   A company has a custom object 'Order__c' with a field 'Total_Amount__c'. They need to ensure that the Total_Amount__c is always the sum of the Amount__c fields on related 'Order_Line_Item__c' records. Which feature should be used?

   • AWorkflow rule to update the Total_Amount__c when line items change.
   • BApex trigger to calculate the total after insert, update, or delete of line items.
   • CRoll-up summary field on Order__c that sums the Amount__c from Order_Line_Item__c.
   • DFormula field on Order__c that sums the Amount__c from Order_Line_Item__c.
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4. 13expert · hard

   A company needs to capture a customer's birth date and calculate their age. They want to ensure that the birth date is in the past and that the age is automatically calculated. Which field types and features should be used?

   • ANumber field for birth date (e.g., YYYYMMDD), and a formula field to calculate age.
   • BText field for birth date, and a validation rule to ensure the format.
   • CDate field for birth date, and a formula field to calculate age.
   • DDate/Time field for birth date, and a workflow rule to calculate age.
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5. 14foundation · easy

   A company needs to track information about its customers, including their name, industry, and phone number. Which type of object should be used to store this data?

   • AExternal object
   • BStandard object
   • CPlatform object
   • DCustom object
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6. 15application · medium

   A company uses Salesforce to manage its sales pipeline. They need to track a unique identifier for each product sold, which is not currently captured in the standard Product object. What should they do?

   • ACreate a custom object to store the product identifier and relate it to the standard Product object.
   • BUse the standard Product object's Description field to store the identifier.
   • CCreate a new custom object for Products and migrate all data.
   • DAdd a custom field to the standard Product object to store the identifier.
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