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Salesforce CRT-450 exam comprises 60 multiple-choice questions that must be completed within 105 minutes. CRT-450 exam covers several topics, including Apex programming, data modeling and management, user interface (UI) development, and testing and debugging. CRT-450 Exam also includes questions on the Salesforce Lightning Component Framework, which is a modern UI framework that is used to develop dynamic and responsive web and mobile applications on the Salesforce platform.

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Salesforce CRT-450 exam consists of 60 multiple-choice questions and is timed for 105 minutes. CRT-450 exam covers various topics such as Apex, Visualforce, Lightning Components, Data Management, and Integration. To pass the exam, candidates must score at least 65%. The Salesforce CRT-450 Exam is administered by Salesforce and can be taken in-person or online.

Salesforce Certified Platform Developer I Sample Questions (Q160-Q165):

NEW QUESTION # 160
Cloud Kicks has a multi-screen flow that its call center agents use when handling inbound service desk calls.
At one of the steps in the flow, the agents should be presented with a list order numbers and dates that are retrieved from an external order management system in real time and displayed on the screen.
What should a developer use to satisfy this requirement?

A. An Apex REST class
B. An invocable method
C. An outbound message
D. An Apex controller

Answer: B

Explanation:
To retrieve data from an external system in real time during a flow, the developer should use an invocable method.
Option B: An invocable method
public with sharing class OrderService {
@InvocableMethod(callout=true)
public static List<OrderInfo> getOrderData(List<String> inputs) {
// Callout to external system and return data
}
}
Reference:
"To invoke Apex methods that perform callouts from a flow, use the @InvocableMethod annotation with callout=true."
- Salesforce Developer Guide: Invocable Methods
Why Other Options Are Incorrect:
Option A: An Apex controller is typically used with Visualforce pages or Aura components, not directly with Flows.
Option C: An outbound message sends data to external systems but does not retrieve data.
Option D: An Apex REST class exposes endpoints for external systems to call into Salesforce, not for Salesforce to call out.

NEW QUESTION # 161
A developer is implementing an Apex class for a financial system, Within the class, the variables 'creditAmount' and "debitAmount' should not be able to change once a value Is assigned.
In which two ways can the developer declare the variables to ensure their value can only be assigned one time? Choose 2 answers

A. Use the final keyword and assign its value when declaring the variable.
B. Use the final keyword and assign its value in the class constructor.
C. Use the static keyword and assign its value in a static initializer.
D. Use the static keyword and assign its value in the class constructor,

Answer: A,B

Explanation:
To ensure that the variables creditAmount and debitAmount cannot change once assigned, the final keyword should be used.
Option B: Use the final keyword and assign its value in the class constructor.
Declaring a variable as final allows it to be assigned once.
Assigning the value in the constructor is acceptable for instance variables.
Option D: Use the final keyword and assign its value when declaring the variable.
Assigning the value at declaration ensures it cannot be changed later.
Why Not Other Options:
Option A: Using static with assignment in the constructor is invalid because static variables belong to the class, not instances.
Option C: Using static and assigning in a static initializer doesn't prevent reassignment unless final is also used.
Reference:
Final Variables:
"You can declare instance variables as final. A final variable can only be assigned a value once, either when you declare it or in the constructor."
- Apex Developer Guide: Classes, Objects, and Interfaces

NEW QUESTION # 162
A developer needs to confirm that a Contact trigger works correctly without changing the organization's dat a. what should the developer do to test the Contact trigger?

A. Use the Test menu on the Developer Console to run all test classes for the Contact trigger
B. Use Deploy from the VSCode IDE to display an 'insert Contact' Apex class.
C. Use the Open execute Anonymous feature on the Developer Console to run an 'insert Contact' DML statement
D. Use the New button on the Salesforce Contacts Tab to create a new Contact record.

Answer: A

NEW QUESTION # 163
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 loads valid Account records from a Static Resource, and call this method within test methods.
B. Create a method that performs a callout for a valid Account record, and call this method from within test methods.
C. Create a method that creates valid Account records, and call this method from within test methods.
D. Create a method that queries for valid Account records, and call this method from within test methods.

Answer: A,C

NEW QUESTION # 164
Which Lightning Web Component custom event property settings enable the event to bubble up the containment hierarchy and cross the Shadow DOM boundary?

A. bubbles: true, composed: true
B. bubbles: true, composed: false
C. bubbles: false, composed: true
D. bubbles: false, composed: false

Answer: A

NEW QUESTION # 165
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