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Salesforce CRT-450 Exam Questions
- Salesforce Certified Platform Developer Certifications
- Salesforce Platform Developer I Certifications
- Topic 1: Introduction To AW Computing/ Introduction To The Platform Developer 1 Certification
- Topic 2: Salesforce Fundamentals/ Database Modeling And Management/ Modeling Data, Managing Data
- Topic 3: Logic And Process Automation/ Working With Formulas And Rollup Summary Fields/ Debug And Deployment Tools
- Topic 4: Working With Basic Constructs In Apex/ Working With SOQL, Working With SOSL, Working With DML
- Topic 5: Working With Exceptions And Governor Limits/ Logic And Process Automation/ Working With Apex Classes
- Topic 6: Working With Apex Triggers/ Describing The Save Order Of Execution User Interface/ Working With Visualforce Pages
- Topic 7: Working With Visualforce Controllers/ Working With The Lightning Component Framework Testing
- Topic 8: Describing The Testing Framework And Requirements/ Creating Test Data And Tests/ Executing A Test/ Testing Considerations
- Topic 9:
Free Salesforce CRT-450 Exam Actual Questions
Note: Premium Questions for CRT-450 were last updated On Feb. 07, 2025 (see below)
Universal Containers (UC) uses a custom object called Vendor. The Vendor custom object has a master-detail relationship with the standard Account object.
Based on some internal discussions, the UC administrator tried to change the master-detail relationship to a lookup relationship, but was not able to do so.
What is a possible reason that this change was not permitted?
The values 'High', 'Medium', and 'Low' are identified as common values for multiple picklists across different objects.
What is an approach a developer can take to streamline maintenance of the picklists and their values, while also restricting the values to the ones mentioned above?
Universal Containers is developing a new Lightning web component for their marketing department. They want to ensure that the component is fine-tuned and provides a seamless user experience.
What are some benefits of using the Lightning Component framework?
A developer created a trigger on the Account object. While testing the trigger, the developer sees the error message 'Maximum trigger depth exceeded'.
What could be the possible causes?
The error message 'Maximum trigger depth exceeded' occurs when a trigger invokes itself recursively more than the allowed limit.
Option C: The trigger is getting executed multiple times.
Correct Answer.
This error indicates that the trigger is recursively calling itself.
This can happen if the trigger performs an update or insert operation that causes the same trigger to fire again, leading to an infinite loop.
Salesforce enforces a limit on the recursion depth to prevent stack overflows.
User permissions do not cause the 'Maximum trigger depth exceeded' error.
Option B: The trigger is too long and should be refactored into a helper class.
*Incorrect, but possible code improvement.
While refactoring code into helper classes is a good practice, it does not directly address the recursion issue causing the error.
Option D: The trigger does not have sufficient code coverage.
Incorrect.
Code coverage issues affect deployment but do not cause runtime errors like 'Maximum trigger depth exceeded'.
Conclusion:
The error is caused because the trigger is getting executed multiple times due to recursion, leading to exceeding the maximum trigger depth.
Triggers and Order of Execution
Incorrect Options:
Option A: The developer does not have the correct user permission.
Incorrect.
A developer creates a custom exception as shown below:
public class ParityException extends Exception. {}
What are two ways the developer can fire the exception in Apex? Choose 2 answers
To fire an exception in Apex, the developer must use the throw statement along with an instance of the exception.
Option A: throw new ParityException();
Correct Way.
Creates a new instance of ParityException with no message and throws it.
Syntax is correct for throwing an exception.
Option C: throw new ParityException('parity does not match');
Correct Way.
Creates a new instance of ParityException with a custom message and throws it.
The exception class inherits from Exception, which allows passing a message to the constructor.
Options Not Correct:
Option B: new ParityException('parity does not match');
Incorrect.
This statement creates a new instance of ParityException but does not throw it.
Without the throw keyword, the exception is not fired.
Option D: new ParityException();
Incorrect.
Similar to Option B, this creates a new instance but does not throw it.
The exception will not affect the flow unless it is thrown.
Conclusion:
The two ways the developer can fire the exception are:
Option A: throw new ParityException();
Option C: throw new ParityException('parity does not match');
Both use the throw statement to fire the exception.
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