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  1. Home
  2. Salesforce Certification
  3. DEX-450 Exam
  4. Salesforce.DEX-450.v2026-06-04.q112 Dumps
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Question 51

Which Lightning Web Component custom event property settings enable the event to bubble up the containment hierarchy and cross the Shadow DOM boundary?

Correct Answer: B
insert code

Question 52

What are two considerations for running a flow in debug mode?
Choose 2 answers

Correct Answer: A,C
insert code

Question 53

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

Correct Answer: A,C
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:
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).
Why not the other options?
B . Duplicate rules are executed once all DML operations commit to the database:
This is incorrect because duplicate rules execute before the DML operation is committed. Duplicate rules prevent duplicate records from being created or updated before the database operation occurs.
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.
Trigger Context and Recursion
Roll-Up Summary Field Documentation
insert code

Question 54

Developers at Universal Containers (UC) use version control to share their code changes, but they notice that when they deploy their code to different environments they often have failures. They decide to set up Continuous Integration (CI).
What should the UC development team use to automatically run tests as part of their CI process?

Correct Answer: C
insert code

Question 55

Universal Containers wants to back up all of the data and attachments in its Salesforce org once month. Which approach should a developer use to meet this requirement?

Correct Answer: D
Scheduling a Data Export job is the best way to back up all the data and attachments in a Salesforce org once a month. The Data Export job can be scheduled to run at a certain frequency so that the data can be backed up on a regular basis. This makes it easy to restore the data in case of any emergency.
insert code
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