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Salesforce CRT-450, also known as the Salesforce Certified Platform Developer I exam, is a certification exam designed for professionals who want to demonstrate their knowledge and skills in developing custom applications using the Salesforce platform. CRT-450 Exam is intended for developers with at least one year of experience building applications on the Salesforce platform. Passing the CRT-450 exam is a key step towards becoming a Salesforce Certified Platform Developer.

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Salesforce CRT-450 Certification Exam is an essential credential for developers who want to showcase their skills and knowledge in building custom applications on the Salesforce platform. Salesforce Certified Platform Developer I certification validates the developer's proficiency in Apex programming language, Visualforce pages, Salesforce data model, security, and testing. To prepare for the exam, candidates can take advantage of various resources available online and join online communities to connect with other developers and learn from their experiences.

Salesforce Certified Platform Developer I Sample Questions (Q37-Q42):

NEW QUESTION # 37
Where would a developer build a managed package?

A. Partial Copy Sandbox
B. Unlimited Edition
C. Developer Sandbox
D. Developer Edition

Answer: D

NEW QUESTION # 38
What are two benefits of using External IDs? Choose 2 answers

A. An External ID can be a formula field to help create a unique key from two fields in Salesforce.
B. An External ID can be used with Salesforce Mobile to make external data visible.
C. External ID is indexed and can improve the performance of SOQL queries.
D. An External ID field can be used to reference an ID from another external system.

Answer: C,D

Explanation:
Option A: An External ID field can be used to reference an ID from another external system.
True.
External IDs are custom fields that have the External ID attribute selected.
They are used to store unique identifiers from external systems, allowing Salesforce to match and integrate data based on external IDs.
External ID fields are automatically indexed, which means they can improve the performance of SOQL queries, especially when used in the WHERE clause.
Indexed fields reduce query times on large datasets.
External IDs do not make external data visible in Salesforce or Salesforce Mobile.
To make external data visible, you would use features like Salesforce Connect.
Formula fields cannot be marked as External IDs.
Only Text, Number, Email, or Auto-Number fields can be designated as External IDs.
Reference:
External ID Fields
Option B: External ID is indexed and can improve the performance of SOQL queries.
True.
Custom Indexed Fields
Option C: An External ID can be used with Salesforce Mobile to make external data visible.
False.
Salesforce Connect
Option D: An External ID can be a formula field to help create a unique key from two fields in Salesforce.
False.
Considerations for External IDs
Conclusion:
The correct benefits of using External IDs are A and B.

NEW QUESTION # 39
Given the following Anonymous Block:

Which one do you like?
What should a developer consider for an environment that has over 10,000 Case records?

A. The try/catch block will handle any DML exceptions thrown.
B. The transaction will fail due to exceeding the governor limit.
C. The transaction will succeed and changes will be committed.
D. The try/catch block will handle exceptions thrown by governor limits.

Answer: C

NEW QUESTION # 40
A developer has a single custom controller class that works with a Visualforce Wizard to support creating and editing multiple subjects. The wizard accepts data from user inputs across multiple Visualforce pages and from a parameter on the initial URL.
Which three statements are useful inside the unit test to effectively test the custom controller?
Choose 3 answers

A. public ExtendedController(ApexPages StandardController cntrl) { }
B. Test.setCurrentPage(pageRef);
C. String nextPage - controller.save().getUrl();
D. insert pageRef.
E. ApexPages.CurrentPage().getParameters().put('input', 'TestValue');

Answer: B,C,E

Explanation:
To effectively test a custom controller that works with a Visualforce wizard, the unit test should do the following:
* Set the current page to the first page of the wizard using Test.setCurrentPage(pageRef), where pageRef is a PageReference object that points to the page URL. This allows the test to access the page parameters and controller methods for that page1.
* Set the page parameter that the wizard expects using
ApexPages.CurrentPage().getParameters().put('input', 'TestValue'), where 'input' is the name of the parameter and 'TestValue' is the value to be passed. This allows the test to simulate the user input or the initial URL parameter that the wizard uses1.
* Verify the navigation logic of the wizard by checking the URL of the next page after invoking the controller action using String nextPage = controller.save().getUrl(), where controller is an instance of the custom controller class and save() is the action method that returns a PageReference object. This allows the test to assert that the wizard redirects to the correct page based on the input and logic2.
The other options are not useful for testing the custom controller. Option A is incorrect because insert pageRef is not a valid Apex statement. Option C is incorrect because public ExtendedController(ApexPages StandardController cntrl) { } is a constructor for a controller extension, not a custom controller3. References:
* Testing Custom Controllers and Controller Extensions | Visualforce Developer Guide | Salesforce Developers
* Testing Navigation Logic | Visualforce Developer Guide | Salesforce Developers
* Build a Controller Extension | Visualforce Developer Guide | Salesforce Developers

NEW QUESTION # 41
A developer is notified that a text field is being automatically populated with invalid values.however, this should be prevented by a custom validation rule that is in placewhat could be causing this?

A. The field is being populated by a before trigger
B. A DML exception is occuring during the save order of execution
C. The user belongs to a permission set that suppresses the validation rule
D. The field is being populated by a workflow field update

Answer: D

NEW QUESTION # 42
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