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Salesforce CRT-450 exam is designed to validate the abilities of individuals in developing custom applications and solutions on the Salesforce platform. It tests their knowledge and understanding of Apex programming, Visualforce development, and integration, among other areas. CRT-450 Exam is intended for individuals who have experience in developing applications using the Salesforce platform and want to take their skills to the next level.

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Salesforce CRT-450 Certification Exam is a valuable recognition for developers who want to showcase their expertise in building custom applications and functionality on the Salesforce platform. Salesforce Certified Platform Developer I certification is recognized globally and helps developers to demonstrate their skills to potential employers. Salesforce Certified Platform Developer I certification also provides developers with access to a community of experts and resources that can help them to enhance their skills and stay up-to-date with the latest Salesforce technologies and trends.

Salesforce Certified Platform Developer I Sample Questions (Q216-Q221):

NEW QUESTION # 216
A business has a proprietary Order Management System (QMS) that creates orders from Its website and fulfills the orders. When the order Is created in the OMS, an integration also creates an order record In Salesforce and relates It to the contact as identified by the email on the order. As the order goes through different stages in the OMS, the integration also updates it in Salesforce.
The business notices that each update from the OMS creates a new order record in Salesforce.
Which two actions should prevent the duplicate order records from being created in Salesforce?

A. Use the order number from the OMS as an external ID.
B. Ensure that the order number in the OMS is unique.
C. Write a trigger on the Order object to delete the duplicates.
D. Use the email on the contact record as an external ID.

Answer: A,B

Explanation:
To prevent duplicate Order records from being created when updates come from the OMS:
Option B: Use the order number from the OMS as an external ID.
Option D: Ensure that the order number in the OMS is unique.
Why These Actions Prevent Duplicates:
By using upsert with the External ID, the integration can update existing orders instead of creating new ones.
// Example of upsert operation using External ID
upsert orderRecord Order_Number__c;
*
Reference:
"An external ID is a custom field that has the 'External ID' attribute, meaning that it contains unique record identifiers from a system outside of Salesforce."
- Salesforce Help: External ID Fields
* Why Other Options Are Incorrect:
Option A: Using the email on the Contact record as an External ID does not prevent duplicate Orders.
Option C: Writing a trigger to delete duplicates is not proactive and adds complexity.

NEW QUESTION # 217
Which two approaches optimize test maintenance and support future declarative configuration changes?
Choose 2 answers.

A. Create a methods that loads valid Account records from a static resources, then call this method within test methods.
B. Create a method that performs a callout for valid records, then call this method within test methods.
C. Create a method that creates valid records,then call this method within test methods.
D. Create a method that queries for valid records, then call this method within test methods.

Answer: A,C

NEW QUESTION # 218
An org has different Apex Classes that provide Account -related functionality.After a new validation rule is added to the object, many of the test methods fail.What can be done to resolve the failures and reduce the number of code changes needed for future validation rules?Choose 2 answers:

A. Create a method that creates valid Account records, and call this method from within test methods.
B. Create a method that queries for valid Account records, and call this method from within test methods.
C. Create a method that performs a callout for a valid Account record, and call this method from within test methods.
D. Create a method that loads valid Account records from a Static Resource, and call this method within test methods.

Answer: A,D

NEW QUESTION # 219
A lead developer creates an Apex interface called Laptop.
Consider the following code snippet:
apex
CopyEdit
public class SilverLaptop {
// code implementation
}
How can a developer use the Laptop interface within the SilverLaptop class?

A. public class SilverLaptop extends Laptop
B. Interface (class="Laptop") public class SilverLaptop
C. Extends (class="Laptop") public class SilverLaptop
D. public class SilverLaptop implements Laptop

Answer: D

Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
To implement an interface in Apex, the implements keyword is used in the class definition. This ensures that the class provides concrete implementations of the interface's methods.
Reference:
Apex Developer Guide: Interfaces

NEW QUESTION # 220
Which two combined methods should a developer use to prevent more than one open Opportunity on each Account? Choose 2 answers

A. Create an Account Roll-up Summary field to count open Opportunities
B. Create an Account Trigger to generate an error on Opportunity insert
C. Create an Opportunity Workflow Rule to auto-close the Opportunity
D. Create an Opportunity Validation Rule to generate an error on insert

Answer: A,D

NEW QUESTION # 221
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