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Salesforce CRT-450 certification exam is designed for developers who want to validate their skills and knowledge in designing and developing custom applications on the Salesforce platform. CRT-450 exam measures a candidate's ability to use Apex and Visualforce to build applications, as well as their understanding of the Salesforce platform architecture, data modeling, and security. Obtaining this certification can enhance a developer's career opportunities and demonstrate their expertise in the field.
Salesforce CRT-450 Certification Exam consists of 60 multiple-choice questions, which must be completed within 120 minutes. CRT-450 exam is administered by Salesforce and can be taken online or in person at a testing center. The passing score for the exam is 68%, and the exam fee is $200. Candidates who pass the exam receive a Salesforce Certified Platform Developer I certificate, which is valid for three years.
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Salesforce CRT-450, also known as the Salesforce Certified Platform Developer I exam, is a certification exam that tests an individual's knowledge and skills in developing custom applications on the Salesforce platform. CRT-450 Exam is designed for professionals who are looking to demonstrate their proficiency in building custom applications using Apex and Visualforce. Salesforce Certified Platform Developer I certification is recognized globally and is a valuable asset for individuals seeking to advance their careers in the Salesforce ecosystem.
NEW QUESTION # 176
A developer created a helper class with a method that can be called from Visualforce pages, web services, triggers, and of even anonymous code. When the method is called from a trigger, the developer needs to execute logic that should not be executed If the method Is called from anywhere else. How can the developer determine if the code Is executed in a trigger context?
Answer: B
NEW QUESTION # 177
Universal Containers (UC) processes orders in Salesforce in a custom object, ord=xr <. They also allow sales reps to upload CSV files with thousands of orders at a time.
A developer is tasked with integrating orders placed in Salesforce with UC's enterprise resource planning (ERP) system.
After the status for an order__ c is first set to 'Placed', the order information must be sent to a REST endpoint in the ERP system that can process one order at a time.
What should the developer implement to accomplish this?
Answer: C
Explanation:
To integrate Order__c records with the ERP system after their status is set to 'Placed', and considering that orders may be uploaded in bulk, the developer should:
Option D: Callout from a Queueable class called from a trigger
Trigger: Implement an after-update trigger on Order__c to detect when the status changes to 'Placed'.
Queueable Apex: Use Queueable Apex to handle asynchronous processing and callouts. Queueable classes support callouts by implementing the Database.AllowsCallouts interface.
Benefits:
Handles Bulk Data: Queueable Apex can process records in batches and can be chained for processing large volumes.
Supports Callouts: Unlike future methods, Queueable Apex allows for more complex data types and supports callouts with fewer limitations.
Reference:
"To make a Web service callout to an external service or API, you must use asynchronous Apex, such as future methods, Queueable Apex, or batch Apex."
"Queueable Apex is an asynchronous Apex feature that is a superset of future methods with some extra features."
- Apex Developer Guide: Queueable Apex
Why Other Options Are Incorrect:
Option A: Callout from an @future method called from a trigger
@future methods have limitations, such as accepting only primitive types as parameters and a limit of 50 calls per transaction, which can be exceeded when processing thousands of records.
"Methods with the future annotation must be static methods and can only return a void type. The specified parameters must be primitive data types, arrays of primitive data types, or collections of primitive data types."
- Apex Developer Guide: Future Methods
Option B: Callout from a Batchable class called from a scheduled job
Batch Apex is not immediately triggered by record changes and may not meet the requirement of processing the order after the status changes.
Scheduling adds delay and complexity unnecessary for this use case.
Option C: Flow with a callout from an invocable method
Flows invoked from triggers (record-triggered flows) cannot perform callouts unless they are configured to run asynchronously, and managing bulk operations with flows can be less efficient.
NEW QUESTION # 178
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?
Answer: B
NEW QUESTION # 179
Which Lightning Web Component custom event property settings enable the event to bubble up the containment hierarchy and cross the Shadow DOM boundary?
Answer: B
Explanation:
To enable a custom event in a Lightning Web Component (LWC) to bubble up the containment hierarchy and cross the Shadow DOM boundary, the event must be dispatched with the properties:
bubbles: true
composed: true
bubbles Property:
When set to true, the event bubbles up through the DOM hierarchy, allowing parent components to listen for the event.
"The bubbles option indicates whether the event bubbles up through the DOM or not."
- Lightning Web Components Developer Guide: Event Propagation
composed Property:
When set to true, the event can pass through the Shadow DOM boundary, allowing components outside the Shadow DOM to receive the event.
"The composed option controls whether the event can propagate across the boundary between the shadow DOM and the regular DOM."
- Lightning Web Components Developer Guide: Event Composition
Example:
// ChildComponent.js
const event = new CustomEvent('myevent', {
bubbles: true,
composed: true,
detail: { /* event data */ }
});
this.dispatchEvent(event);
Why Other Options Are Incorrect:
Option B: bubbles: true, composed: false
The event will bubble up within the Shadow DOM but will not cross the Shadow DOM boundary.
Option C: bubbles: false, composed: false
The event will neither bubble nor cross the Shadow DOM boundary, limiting its propagation.
Option D: bubbles: false, composed: true
The event will not bubble up the containment hierarchy but can cross the Shadow DOM boundary, which is insufficient for the requirement.
Conclusion:
Setting both bubbles and composed to true ensures the event bubbles up through the component hierarchy and crosses the Shadow DOM boundary.
NEW QUESTION # 180
A custom object Trainer_c has a lookup field to another custom object Gym___c.
Which SOQL query will get the record for the Viridian City gym and it's trainers?
Answer: B
NEW QUESTION # 181
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