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The Salesforce Certified Platform Developer I (CRT-450) Dumps PDF is the most convenient form of Salesforce Certified Platform Developer I (CRT-450) preparation material. It is a collection of actual Salesforce CRT-450 exam questions. So you will have real Salesforce Certified Platform Developer I (CRT-450) questions with accurate answers at your disposal in a CRT-450 Dumps PDF document. These CRT-450 PDF questions are also printable, so you can grab a hard copy if you have time to spare for a quick review.
Salesforce CRT-450 (Salesforce Certified Platform Developer I) Certification Exam is a globally recognized certification exam that validates the skills and knowledge of developers in building custom applications on the Salesforce platform. CRT-450 exam is designed to assess the skills required to develop and deploy custom business logic and interfaces using Apex and Visualforce, and to manage data and metadata on the Salesforce platform. Salesforce Certified Platform Developer I certification is aimed at developers who have experience with the Salesforce platform, programming concepts and object-oriented programming languages such as Java, C#, and C++.
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NEW QUESTION # 139
An org has an existing flow that edits an Opportunity with an Update Records element. A developer must update the flow to also create a Contact and store the created Contact's ID on the Opportunity.
Which update must the developer make in the flow?
Answer: B
NEW QUESTION # 140
A developer has an integer variable called maxattempts. The developer needs to ensure that once maxattempts is initialized, it preserves its value for the length of the Apex transaction; while being able to share the variable's state between trigger executions.
How should the developer declare mazattempts to meet these requirements?
Answer: B
Explanation:
Requirements:
The maxAttempts variable must:
Preserve its value for the length of the Apex transaction.
Be able to share the variable's state between trigger executions.
Solution:
To meet these requirements, the variable should be declared as a private static variable on a helper class.
Option D: Declare maxAttempts as a private static variable on a helper class.
Correct Approach.
Static Variables:
Static variables retain their value throughout the execution context of the Apex transaction.
They are shared across trigger contexts and can be used to maintain state between trigger executions.
Private Modifier:
Keeps the variable encapsulated within the class.
Helper Class:
Placing the variable in a helper class allows it to be accessed from multiple triggers or classes within the transaction.
Sample Code:
public class MyHelperClass {
private static Integer maxAttempts = 0;
public static void incrementAttempts() {
maxAttempts++;
}
public static Integer getMaxAttempts() {
return maxAttempts;
}
}
Benefits:
State Preservation: Static variables maintain their state during the transaction.
Accessibility: Can be accessed from different triggers or classes.
Declaring as static final makes the variable a constant.
Constants cannot change value once initialized.
We need the variable to preserve and change its value during the transaction.
Option B: Declare maxAttempts as a member variable on the trigger definition.
Not Possible.
You cannot declare variables directly on the trigger definition.
Triggers do not support member variables.
Option C: Declare maxAttempts as a variable on a helper class.
Insufficient.
Declaring it as an instance variable (non-static) on a helper class means it does not retain its value across trigger executions within the same transaction.
Each instantiation would have its own copy of the variable.
Conclusion:
Declaring maxAttempts as a private static variable on a helper class satisfies the requirements.
It ensures the variable retains its value throughout the Apex transaction and can be shared between trigger executions.
Reference:
Static and Instance Variables
Understanding Apex Transactions
Why Other Options are Not Suitable:
Option A: Declare maxAttempts as a constant using the static and final keywords.
Incorrect.
NEW QUESTION # 141
A developer has the controller class below.
Which code block will run successfully in an execute anonymous window?
myFooController m = new myFooController();
Answer: B
NEW QUESTION # 142
When a user edits the Postal Code on an Account, a custom Account text field named "Timezone" must be updated based on the values in another custom object called PostalCodeToTimezone__c.
What is the optimal way to implement this feature?
Answer: A
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Flow Builder is designed for automating business processes declaratively. In this scenario, it can be configured to update the Timezone field on Account whenever the Postal Code is changed by querying the PostalCodeToTimezone__c object and updating the Account accordingly.
Reference:
Flow Builder Guide
NEW QUESTION # 143
developer must provide custom user interfaces when users edit a Contact either Salesforce Classic or Lightning Experience.
What should the developer use to override the Contact's Edit button and provide this functionality?
Answer: A
Explanation:
When overriding standard buttons in Salesforce Classic and Lightning Experience, different technologies are used.
Salesforce Classic:
Visualforce pages are used to override standard buttons like Edit.
Lightning Experience:
Lightning Components (Aura Components or Lightning Web Components) are used.
Option C: A Visualforce page in Salesforce Classic and a Lightning component in Lightning Experience Correct Answer.
In Salesforce Classic, override the Edit button with a Visualforce page.
In Lightning Experience, use a Lightning Component to override the Edit action.
Reference:
Overriding Standard Buttons
Overrides in Lightning Experience
Options Not Applicable:
Option A and B: Lightning components cannot be used in Salesforce Classic.
Option D: A Lightning page cannot be used to override standard buttons.
Conclusion:
The developer should use a Visualforce page in Salesforce Classic and a Lightning component in Lightning Experience, which is Option C.
NEW QUESTION # 144
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