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Salesforce Plat-Dev-301 Exam Syllabus Topics:

Section	Objectives
Integration and APIs	- External system integration 1. REST and SOAP API usage 2. Callouts from Apex - Platform events and messaging 1. Event-driven architecture 2. Change Data Capture concepts
Data Modeling and Management	- Data access and security 1. Security enforcement in Apex 2. Sharing rules and Apex-managed sharing - Advanced data modeling 1. Complex relationships and schema design 2. Large data volume considerations
Testing and Deployment	- Testing strategies 1. Test data creation and mocking 2. Code coverage and quality practices - Deployment lifecycle 1. Change sets and deployment tools 2. Version control and CI/CD concepts
Application Development	- Advanced Apex programming 1. Apex design patterns and best practices 2. Exception handling and debugging strategies 3. Dynamic Apex and metadata-driven development - Asynchronous processing 1. Future methods and limits considerations 2. Scheduled Apex 3. Batch Apex and Queueable Apex

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Salesforce Certified Platform Developer II - Multiple Choice Sample Questions (Q155-Q160):

NEW QUESTION # 155
A developer created an Opportunity trigger that updates the account rating when an associated opportunity is considered high value. Current criteria for an opportunity to be considered high value is an amount greater than or equal to $1,000,000. However, this criteria value can change over time.
There is a new requirement to also display high value opportunities in a Lightning web component.
Which two actions should the developer take to meet these business requirements, and also prevent the business logic that obtains the high value opportunities from being repeated in more than one place?
Choose 2 answers

A. Create a helper class that fetches the high value opportunities,
B. Leave the business logic code inside the trigger for efficiency.
C. Use custom metadata to hold the high value amount.
D. Call the trigger from the Lightning web component.

Answer: A,C

Explanation:
Creating a helper class allows the logic to be centralized and reused in both the trigger and the Lightning Web Component (LWC), avoiding repetition. Using custom metadata to store the criteria value allows easy updates without code changes and can be referenced from both the helper class and the trigger.
Apex Developer Guide
Custom Metadata Types Guide

NEW QUESTION # 156
How can a developer efficiently incorporate multiple JavaScript libraries in an Aura component?

A. Use JavaScript remoting and script tags.
B. Use CDNs with script attributes.
C. Implement the libraries in separate helper files.
D. Join multiple assets from a static resource.

Answer: D

Explanation:
For incorporating multiple JavaScript libraries in Aura components, the best practice is to join multiple assets into a single static resource. This approach is efficient and avoids issues with asynchronous loading and potential conflicts between libraries. Aura Components Developer Guide - Using External JavaScript Libraries

NEW QUESTION # 157
Consider the following code snippet:

How should the <e-orders> component communicate to the <c-selected-orders component that an order has been selected by the user?

A. Create and fire a standard DOM event.
B. Create and dispatch a custom event,
C. Create and fire a component event.
D. Create and fire an application event.

Answer: B

Explanation:
Create and dispatch a custom event. This approach allows LWC components to communicate effectively, maintaining component encapsulation and reusability.

NEW QUESTION # 158
A corporation has many different Salesforce orgs, with some different objects and some common objects, and wants to build a single Java application that can create, retrieve, and update common object records in all of the different orgs.
Which method of integration should the application use?

A. Apex REST Web Service
B. Metadata APT
C. SOAP API with the Enterprise WSDL
D. SOAP API with the Partner WSDL

Answer: D

Explanation:
The SOAP API with the Partner WSDL is ideal for building integrations that work across multiple Salesforce orgs, especially when they have varying schemas. The Partner WSDL is designed to be flexible and dynamic, catering to different metadata.

NEW QUESTION # 159
A developer has working business logic code, but sees the following error in the test class:
You have uncommitted work pending. Please commit or rollback before calling out.
What is a possible solution?

A. Use mast. T=RunningTes={} before making the callout to bypass it in test execution,
B. Rewrite the business logic and test classes with @Testvisible set on the callout.
C. Set seeAllData to true the top of the test class, since the code does not fall in practice.
D. Call support for help with the target endpoint, as It is likely an external code error.

Answer: C

Explanation:
The error "You have uncommitted work pending. Please commit or rollback before calling out" usually indicates that DML operations (like insert, update, delete) are being performed before a callout in a test context. This is not allowed because Salesforce does not support this sequence of operations in a single transaction. However, the use of seeAllData=true is generally not a recommended practice and does not address the core issue of mixed DML and callouts in tests. The correct solution is to use a mocking framework to simulate the callout response. By using Test.setMock(), developers can avoid performing actual callouts in test methods, thus bypassing the uncommitted work error.
Apex Developer Guide - Testing HTTP Callouts
Apex Developer Guide - Isolation of Test Data from Organization Data in Unit Tests

NEW QUESTION # 160
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