Plat-Dev-301 Valid Exam Registration, Cert Plat-Dev-301 Guide

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Salesforce Plat-Dev-301 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: User Interface	18%	- Aura Components - Lightning Data Service - Visualforce advanced controllers - Lightning Web Components (LWC) advanced features
Topic 2: Architecture	18%	- Governor limits and bulkification - Apex Enterprise Patterns - Namespace and package management - Design patterns and Apex trigger frameworks
Topic 3: Integration	15%	- REST and SOAP web services (Apex callouts) - Named Credentials and authentication - Platform Events and Change Data Capture - External Services and Connect REST API
Topic 4: Logic and Process Automation	22%	- Dynamic Apex and SOQL/SOSL - Asynchronous Apex (Batch, Queueable, Future, Scheduled) - Advanced Apex programming - Invocable Actions and Platform Events
Topic 5: Testing, Debugging, and Deployment	15%	- Test data strategies and mocking - Deployment tools (SFDX, Metadata API) - Apex unit testing best practices - Debugging and performance profiling
Topic 6: Data Modeling	12%	- Advanced object relationships and data modeling - Large data volumes considerations - External objects and data sources

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Salesforce Certified Platform Developer II - Multiple Choice Sample Questions (Q63-Q68):

NEW QUESTION # 63
Part of a custom Lightning component displays the total number of Opportunities in the org, which are in the millions. The Lightning component uses an Apex method to get the data it needs.
What is the optimal way for a developer to get the total number of Opportunities for the Lightning component?

A. COUNT () SOQL aggregate query on the Opportunity object
B. SUM () SOQL aggregate query on the Opportunity object
C. SOQL for loop that counts the number of Opportunities records
D. Apex batch job that counts the number of Opportunity records

Answer: D

NEW QUESTION # 64
A company uses Salesforce to sell products to customers. They also have an external product information management (PIM) system that is the system of record for products.
A developer received these requirements:
* Whenever a product is created or updated in the PIM, a product must be created or updated as a Product? record in Salesforce and a PricebookEntry record must be created or updated automatically by Salesforce.
= The PricebookEntry should be created in a Priceboek2 that is specified in a custom setting.
What should the developer use to satisfy these requirements?

A. Invocable Action
B. Custom Apex REST
C. Event Monitoring
D. SObject Tree REST

Answer: B

Explanation:
Custom Apex REST services are the optimal solution for integrating Salesforce with an external PIM system. When a product is created or updated in the PIM, the external system can make a REST call to a custom Apex REST endpoint in Salesforce, which then can create or update the Product2 and PricebookEntry records. This method allows using custom settings to determine the Pricebook2 dynamically.

NEW QUESTION # 65
A company has many different unit test methods that create Account records as part of their data setup. A new required field was added to the Account and now all of the unit tests fail.
What is the optimal way for a developer to fix the issue?

A. Change the required field to be a validation rule that excludes the System Administrator profile.
B. Create a TestDataFactory class that serves as the single place to create Accounts for unit tests and set the required field there.
C. Add the required field to the data setup for all of the unit tests.
D. Add a before insert trigger on Account to set the value of the required field,

Answer: B

Explanation:
The optimal way to fix the failing unit tests after adding a new required field to the Account object is to create a TestDataFactory class that serves as a centralized place to create Accounts for unit tests. This class would include the new required field, ensuring that all unit tests have the necessary data setup.

NEW QUESTION # 66
Universal Containers is leading a development team that follows the source-driven development approach in Salesforce. As part of their continuous integration and delivery (CL/CD) process, they need to automatically deploy changes to multiple environments, including sandbox and production.
'Which mechanism or tool would best support their CI/CD pipeline in source-driven development?

A. Salesforce CLI with Salesforce DX
B. Change Sets
C. Ant Migration Tool
D. Salesforce Extensions for Visual Studio Code

Answer: A

Explanation:
Salesforce CLI with Salesforce DX supports source-driven development and is designed for continuous integration and delivery (CI/CD) processes. It enables developers to automate deployments across multiple environments, including sandbox and production.

NEW QUESTION # 67
A developer is tasked with ensuring that email addresses entered into the system for Contacts and for a custom object called survey Response c do not belong to a list of blocked domains.
The list of blocked domains is stored in a custom object for ease of maintenance by users. The survey Response c object is populated via a custom Visualforce page.
What is the optimal way to implement this?

A. Implement the logic in validation rules on the Contact and the Burvey Response_c Objects.
B. Implement the logic in the custom Visualforce page controller and call "that method from an Apex trigger on Contact.
C. Implement the logic in a helper class that is called by an Apex trigger on Contact and from the custom Visualforce page controller.
D. Implement the logic in an Apex trigger on Contact and also implement the logic within the custom Visualforce page controller.

Answer: C

Explanation:
The optimal way to enforce the exclusion of blocked domains for email addresses entered into Contacts and a custom object is to use a helper class. The class can be called by an Apex trigger on the Contact object and from the controller of the custom Visualforce page used for the Survey Response. This centralizes the logic for maintainability and reusability.

NEW QUESTION # 68
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