Plat-Dev-301 Antworten - Plat-Dev-301 Online Test

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Salesforce Plat-Dev-301 Exam Syllabus Topics:

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

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Salesforce Certified Platform Developer II - Multiple Choice Plat-Dev-301 Prüfungsfragen mit Lösungen (Q76-Q81):

76. Frage
A developer wrote a test class that successfully asserts a trigger on Account, It fires and updates data correctly In a sandbox environment.
A Salesforce admin with a custom profile attempts to deploy this trigger via a change set into the production environment, but the test class falls with an Insufficient privileges error.
What should a developer do to fix the problem?

A. Add seeallData=true to the test class to work within the sharing model for the productionenvironment.
B. Add System.runAs() to the test class to execute the trigger as a user with the correct objectpermissions.
C. Verify that Test. startTest() Is not Inside a For loop in the test class,
D. Configure the production environment to enable"Run All Tests as Admin User."

Antwort: B

Begründung:
When a test class fails with an "Insufficient privileges" error during deployment, it indicates that the user profile under which the tests are being executed doesn't have the necessary permissions to perform the actions required by the test. In a sandbox, the test might have been running with a different set of permissions compared to the production environment.
By using System.runAs(), you can specify a user context in which the test should run, which allows you to simulate the appropriate permissions. For this to work, you need to create a User instance in your test class with the profile that has the necessary permissions and then enclose the logic of your test within a System.runAs() block with this user.
This is a preferred solution over seeAllData=true, which would give the test access to all data in the production environment, potentially leading to tests that are not isolated and thus less reliable. It's also preferred over changing organization-wide settings or relying on specific setup in test classes, such as making sure Test.startTest() is not inside a loop.
Salesforce Documentation on Using the runAs Method: Testing with the runAs Method Salesforce Help Article on System Permissions: Profiles and Permissions

77. Frage
Just prior to a new deployment the Salesforce administrator, who configured a new order fulfillment process feature in a developer sandbox, suddenly left the company.
Ag part of the UAT cycle, the users had fully tested all of the changes in the sandbox and signed off on them; making the Order fulfillment feature ready for its go-live in the production environment.
Unfortunately, although a Change Set was started, it was not completed by the former administrator.
A developer is brought in to finish the deployment.
What should the developer do to identify the configuration changes that need to be moved into production?

A. Leverage the Setup Audit Trail to review the changes made by the departed Administrator and identify which changes should be added to the Change Set.
B. Set up Continuous Integration and a Git repository to automatically merge all changes from the sandbox metadata with the production metadata.
C. Use the Metadata API and a supported development IDE to push all of the configuration from the sandbox into production to ensure no changes are lost.
D. In Salesforce setup, look at the last modified date for every object to determine which should be added to the Change Set.

Antwort: A

Begründung:
To identify the configuration changes made by the former administrator, the developer should leverage the Setup Audit Trail. This allows tracking changes made in the Setup area of Salesforce, showing the date of the change, who made it, and what the change was.

78. Frage
How should a developer verify that a specific Account record is being tested in a test class for a Visualforce controller?

A. Insert the Account in the test class, instantiate the page reference in the test class, then use System.currentFageReference() .getFarameters() .put{) to set the Account ID.
B. Insert the Account into Salesforce, instantiate the page reference in the test class, then use system. setFarentRecordId() .get() to set the Account ID.{of Instantiate the page reference in the test class, insert the Account inthe test class, then use =seeAllData=trus to view the Account.
C. Instantiate the page reference in the test class, insert the Account inthe test class, then use system.setFarentRecordrd() .get() to set the Account ID,

Antwort: A

Begründung:
To test a Visualforce controller that works with specific records, you should insert the necessary test data in the test class. Then instantiate a PageReference for the Visualforce page, set the record id in the page parameters, and use System.currentPageReference().getParameters().put('id', recordId) to simulate navigating to the page with that record.

79. Frage
A company has a native iOS order placement app that needs to connect to Salesforce to retrieve consolidated information from many different objects in a JSON format.
Which is the optimal method to implement this in Salesforce?

A. Apex SOAP callout
B. Apex REST web service
C. Apex REST callout
D. Apex SOAP web service

Antwort: B

Begründung:
Apex REST web services are the best method for creating custom endpoints that return data in a specific format, such as JSON, which is perfect for a native iOS application that needs to integrate with Salesforce for retrieving data.

80. Frage
A Visualforce page contains an industry select list and displays a table of Accounts that have a matching value in their Industry field.

When a user changes the value in the industry select list, the table of Accounts should be automatically updated to show the Accounts associated with the selected industry, What is the optimal way to implement this?

A. Add an <apex:actionFunction> within the <apex:selectOptions>.
B. Add an <apex:actionsupport> within the <apex:selecList>.
C. Add an <apex:actionsupport> within the <apex:selectOptions>.
D. Add an <apex:actionFunction> within the <apax:selecList>.

Antwort: B

Begründung:
The <apex:actionSupport> component is designed to be used with another component to provide AJAX support. When the value of the industry select list changes, the <apex:actionSupport> can trigger an AJAX request to the server, causing the page to rerender the table of Accounts with the matching industry. This process occurs without a full page refresh, providing a smoother user experience.
Visualforce Developer Guide

81. Frage
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