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Salesforce Plat-Dev-301 Exam Syllabus Topics:

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

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Salesforce Certified Platform Developer II - Multiple Choice Sample Questions (Q108-Q113):

NEW QUESTION # 108
The head of recruiting at Universal Containers (UC) wants to provide all internal users the ability to search for open positions by role, department, and location via a new recruiting app. In addition to search, users of the app should be able to refer a friend, apply for a position, and review the status of their current submissions.
The app will be surfaced to UC's existing iOS and Android users via the standard mobile app that Salesforce provides. It has a custom user interface design and offline access is not required.
Given these requirements, what is the recommended approach to develop the app?

A. Salesforce SDK
B. Lightning Experience Builder
C. Lightning Web Components
D. Visualforce

Answer: C

NEW QUESTION # 109
Business rules require a Contact ta always be created when a new Account is created.
What can be used when developing a custom screen to ensure an Account is not created if the creation of the Contact fails?

A. Disable validation rules on Contacts and set default values with a trigger.
B. Use the Database. Delete method if the Contact insertion fails.
C. Use the Database. Insect method with a11orNone SEL LO alee,
D. Use setSaverpoint (1) and rollback() with a try-catch block.

Answer: D

Explanation:
When developing a custom screen that requires both an Account and Contact to be created together, using setSavepoint() and rollback() within a try-catch block is a reliable way to ensure that if the Contact creation fails, the Account creation is also rolled back, maintaining data integrity.

NEW QUESTION # 110
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. Set seeAllData to true the top of the test class, since the code does not fall in practice.
C. Call support for help with the target endpoint, as It is likely an external code error.
D. Rewrite the business logic and test classes with @Testvisible set on the callout.

Answer: B

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 # 111
A developer notices the execution of all the test methods in a class takes a long time to run, due to the initial setup of all the test data that is needed to perform the tests. What should the developer do to speed up test execution?

A. Reduce the amount of test methods in the class.
B. Ensure proper usage of test data factory in all test methods.
C. Define a method that creates test data and annotate with @testSetup.
D. Define a method that creates test data and annotate with @createData.

Answer: C

Explanation:
Using the @testSetup annotation to define a method that creates test data before the tests run can significantly speed up test execution by reducing the setup time for each test method in the class. This method runs once before any test method in the class and can be used by all test methods.

NEW QUESTION # 112
Which scenario requires a developer to use an Apex callout
Instead of Outbound Messaging?

A. The callout needs to be asynchronous.
B. The callout needs to be invoked from a flow.
C. The target system uses a REST APL.
D. The target system uses a SCAP API.

Answer: C

Explanation:
Outbound Messaging in Salesforce provides a way to send notifications from Salesforce to external applications using SOAP-based web service calls. However, when the target system requires interactions with RESTful web services, a developer must use an Apex callout. This is because Outbound Messaging is limited to SOAP and cannot directly interact with REST APIs. Apex callouts provide the flexibility to make HTTP requests to REST endpoints, thus allowing developers to programmatically interact with virtually any web service provided by external systems.
Apex Web Services and Callouts
Outbound Messaging

NEW QUESTION # 113
......

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