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Salesforce Plat-Dev-301 Exam Syllabus Topics:

Section	Objectives
Topic 1: Integration and APIs	- Platform events and messaging 1. Change Data Capture concepts 2. Event-driven architecture - External system integration 1. REST and SOAP API usage 2. Callouts from Apex
Topic 2: Application Development	- Advanced Apex programming 1. Dynamic Apex and metadata-driven development 2. Apex design patterns and best practices 3. Exception handling and debugging strategies - Asynchronous processing 1. Scheduled Apex 2. Batch Apex and Queueable Apex 3. Future methods and limits considerations
Topic 3: Testing and Deployment	- Testing strategies 1. Test data creation and mocking 2. Code coverage and quality practices - Deployment lifecycle 1. Version control and CI/CD concepts 2. Change sets and deployment tools
Topic 4: 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

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Salesforce Certified Platform Developer II - Multiple Choice Sample Questions (Q180-Q185):

NEW QUESTION # 180
A developer is building a complex commission calculation engine in Apex that is called from an Opportunity trigger. During QA it was reported that the calculations are incorrect.
The developer has representative test data and passing test methods in their developer sandbox.
Which three tools or techniques could the developer use to execute the code and pause it at key lines to visually inspect values of various Apex variables?
Choose 3 answers

A. Developer Console
B. Breakpoints
C. Workbench
D. Apex Replay Debugger
E. Apex Interactive Debugger

Answer: A,D,E

Explanation:
To debug and troubleshoot the commission calculation engine, a developer can use several tools provided by Salesforce to inspect and pause the execution of Apex code.
Apex Interactive Debugger: It allows real-time debugging of Apex code execution. With this tool, a developer can set breakpoints, step through code, inspect variables, and evaluate expressions.
Developer Console: Although the Developer Console does not allow interactive debugging, it does provide the ability to view logs that capture the execution of code. Debug logs can be inspected to understand the flow of execution and values of variables at different points in time.
Apex Replay Debugger: This tool is part of Salesforce Extensions for Visual Studio Code. It allows a developer to replay a debug log as if they are stepping through the code line by line, which can be very useful to inspect the state of variables at specific points in the execution.
Apex Interactive Debugger
Developer Console Debugging
Apex Replay Debugger

NEW QUESTION # 181
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. SObject Tree REST
B. Custom Apex REST
C. Invocable Action
D. Event Monitoring

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 # 182
Universal Containers develops a Salesforce application that requires frequent interaction with an external REST API.
To avoid duplicating code and improve maintainability, how should they implement the APL integration for code reuse?

A. Create a reusable Apex class for the AFL integration and invoke it from the relevant Apex classes.
B. Use a separate Apex class for each API endpoint to encapsulate the integration logic,
C. Store the APT integration code as a static resource and reference it in each Apex class.
D. Include the API integration code directly in each Apex class that requires it.

Answer: A

Explanation:
Creating a reusable Apex class for API integration allows for code encapsulation and maintainability. This class can then be invoked from any other Apex class that requires interaction with the API, preventing code duplication.

NEW QUESTION # 183
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. Rewrite the business logic and test classes with @Testvisible set on the callout.
B. Use mast. T=RunningTes={} before making the callout to bypass it in test execution,
C. Call support for help with the target endpoint, as It is likely an external code error.
D. Set seeAllData to true the top of the test class, since the code does not fall in practice.

Answer: D

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 # 184
Exhibit.

Given the code above, which two changes need to be made in the Apex Controller for the code to work? Choose 2 answers

A. Annotate the entire class as @AuraEnabled instead of just the single method.
B. Change the method signature to be global static, not public to String.
C. Remove line 06 from the Apex Controller and instead use firstName in the return on line 07.
D. Change the argument in the Apex Controller line 05 from subject to string.

Answer: C,D

Explanation:
Based on the code provided, here are the necessary changes:
Change B is required because the argument in the Apex controller's serverEcho method must match the data type expected by the JavaScript calling the method. The Apex method expects an Object named firstName, which is then cast to a String inside the method. The JavaScript is passing an object with a property firstName, so no change is needed in the JavaScript.
Change D is correct because line 06 is redundant and unnecessary. We can directly use firstName in the return statement as it is already a String type. The get() method is typically used when you have a Map and you need to retrieve a value by its key. Since firstName is already being passed as a String, there's no need to cast it or retrieve it using get().
Apex Developer Guide

NEW QUESTION # 185
......

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