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NEW QUESTION # 75
Which collection type provides unique key/value pairings of data?
Answer: D
NEW QUESTION # 76
Which trigger event allows a developer to update fields in the Trigger.new list without using an additional DML statement?Choose 2 answers
Answer: A,B
NEW QUESTION # 77
The Account object in an organization has a master-detail relationship to a child object called Branch. The following automations exist:
* Roll-up summary fields
* Custom validation rules
* Duplicate rules
developer created a trigger on the Account object.
Which two things should the developer consider while testing the trigger code?
Choose 2 answers
Answer: A,B
Explanation:
A: Roll-up summary fields can cause the parent record to go through Save:
When a roll-up summary field on a parent object (like Account) is updated due to changes in child records (like Branch), the parent record (Account) is implicitly saved again.
This can result in the execution of the trigger on the parent object. Developers must consider this behavior to avoid unintended recursion or infinite loops.
Reference:Roll-Up Summary Field Considerations
C: The trigger may fire multiple times during a transaction:
Triggers can execute multiple times within a single transaction, especially when there are operations such as updates to the parent record caused by roll-up summary fields or workflows.
Developers should implement logic to ensure that the trigger handles multiple executions correctly (e.g., using a static variable to prevent recursion).
Reference:Apex Trigger Best Practices
Why not the other options?
B: Duplicate rules are executed once all DML operations commit to the database:
This is incorrect because duplicate rules executebeforethe DML operation is committed. Duplicate rules prevent duplicate records from being created or updated before the database operation occurs.
Reference:Duplicate Rules Execution
D: The validation rules will cause the trigger to fire again:
This is incorrect because validation rules do not cause triggers to fire again. Validation rules validate the record and may prevent DML operations, but they do not independently re-trigger the Apex trigger.
References:
Trigger Context and Recursion
Roll-Up Summary Field Documentation
NEW QUESTION # 78
Universal Containers needs to create a custom user interface component that allows users to enter information about their accounts. The component should be able to validate the user input before saving the information to the database.
What is the best technology to create this component?
Answer: D
Explanation:
To create a custom user interface component that allows users to enter information about their accounts and validate user input before saving, the best technology is:
Option A: Lightning Web Components
Lightning Web Components (LWC):
LWC is a modern UI framework built on web standards, providing efficient performance and a rich set of base components.
Input Validation:
LWCs support client-side validation using standard HTML5 validation and custom validation logic.
Developers can use JavaScript to validate user input before saving data to the database.
User Experience:
LWCs provide a responsive and interactive user experience, which is essential for data entry components.
Reference:
"Use Lightning Web Components to build enterprise-grade apps that deliver unprecedented levels of performance and productivity."
- Lightning Web Components Developer Guide
Why Other Options Are Less Suitable:
Option B: Visualforce
Visualforce is an older framework and may not provide the modern user experience and performance of LWC.
Option C: Flow
While Flows can be used for guided user interactions, they are less flexible for complex custom validations and custom UI components.
Option D: VUE JavaScript framework
Vue.js is not natively supported within Salesforce for building UI components. Using external frameworks would require additional integrations and may not be supported.
Conclusion:
Lightning Web Components offer the best technology for creating custom UI components with client-side validation in Salesforce.
NEW QUESTION # 79
Which two statements are true regarding formula fields? Choose 2 answers
Answer: C,D
NEW QUESTION # 80
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