Plat-Dev-301 Prüfungsfrage - Plat-Dev-301 Demotesten

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Salesforce Plat-Dev-301 Exam Syllabus Topics:

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

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Salesforce Certified Platform Developer II - Multiple Choice Plat-Dev-301 Prüfungsfragen mit Lösungen (Q26-Q31):

26. Frage
A developer is asked to build a solution that will automatically send an email to the customer when an Opportunity stage changes. The solution must scale to allow for 10,000 emails per day. The criteria to send the email should be evaluated after certain conditions are met.
What is the optimal way to accomplish this?

A. Use SingleEmailMessage() with an Apex trigger.
B. Use MassEmailMEssage () With an Apex trigger.
C. Use a Workflow Email Alert.
D. Use an Email Alert with Flow Builder.

Antwort: D

Begründung:
Using an Email Alert with Flow Builder allows for scalable solutions that can handle large volumes of emails, and it offloads the processing from Apex to Salesforce's declarative automation tools. This approach is also bulk-safe, as it does not rely on Apex code that could hit governor limits.

27. Frage
An Apex class does not achieve expected code coverage. The testsetup method explicitly calls a method In the Apex class..
How can the developer generate the code coverage?

A. Use system.assert() in testSetup to verify the values are being returned.
B. Add @testvisible to the method in the class the developer is testing.
C. Call the Apex class method from a testsetup Instead of the testsetup methed.
D. Verify the user has permissions passing a user into System,.runds().

Antwort: B

Begründung:
When an Apex class does not achieve the expected code coverage, it suggests that the test methods are not executing parts of the class. The @testvisible annotation can be used to increase code coverage by allowing test methods to access private or protected members of another class. This enables the test method to call methods that may not be directly accessible, but it is not a direct means to generate code coverage. The code coverage is actually achieved when the test methods execute the code within these methods. Therefore, to properly generate code coverage, the developer must ensure that the test methods call the relevant portions of the code that need to be covered. The use of @testvisible can facilitate this process by making otherwise inaccessible code available for testing.
Apex Developer Guide - Testing Best Practices
Apex Developer Guide - @testVisible Annotation

28. Frage
Consider the Apex controller below, that is called from an Aura component.

What is wrong with this code?

A. Line 1: class must be global8. Lines 1 and 6: class and method must be global
B. Line 6: method must be static
C. Line 8: method must first serialize the list to JSON before returning

Antwort: C

Begründung:
The method defined in the Apex class must be static to be used as an Aura-enabled method. Aura-enabled methods need to be static because they are called by the Lightning framework without instantiating the class.

29. Frage
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. Apex Interactive Debugger
C. Apex Replay Debugger
D. Breakpoints
E. Workbench

Antwort: A,B,C

Begründung:
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

30. Frage
Universal Containers is using a custom Salesforce application to manage customer support cases. The support team needs to collaborate with external partners to resolve certain cases. However, they want to control the visibility and access to the cases shared with the external partners. Which Salesforce feature can help achieve this requirement?

A. Criteria-based sharing rules
B. Sharing sets
C. Role hierarchy
D. Apex managed sharing

Antwort: D

Begründung:
Apex managed sharing is the correct feature to control the visibility and access to cases shared with external partners. It allows developers to programmatically create sharing records that grant access to users based on specific criteria, providing granular control over record sharing.

31. Frage
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