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Salesforce Plat-Dev-301 Exam Syllabus Topics:

Section	Objectives
Topic 1: Data Modeling and Management	- Data access and security 1. Security enforcement in Apex 2. Sharing rules and Apex-managed sharing - Advanced data modeling 1. Large data volume considerations 2. Complex relationships and schema design
Topic 2: 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
Topic 3: Application Development	- Advanced Apex programming 1. Exception handling and debugging strategies 2. Apex design patterns and best practices 3. Dynamic Apex and metadata-driven development - Asynchronous processing 1. Scheduled Apex 2. Batch Apex and Queueable Apex 3. Future methods and limits considerations
Topic 4: Testing and Deployment	- Deployment lifecycle 1. Version control and CI/CD concepts 2. Change sets and deployment tools - Testing strategies 1. Code coverage and quality practices 2. Test data creation and mocking

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Salesforce Certified Platform Developer II - Multiple Choice Sample Questions (Q170-Q175):

NEW QUESTION # 170
Universal Containers (UC) has enabled the translation workbench and has translated picklist values. UC has a custom multi-select picklist field, Product__c, on the Account object that allows sales reps to specify which of UC's products an Account already has. A developer is tasked with writing an Apex method that retrieves Account records, including the Product_c field.
What should the developer do to ensure the value of Products__c is in the current user's language?

A. Set the locale on each record in the SOQL result list.
B. Call the translate method on each record in the SOQL result list.
C. Use the Locale clause in the SOQL query.
D. Use tolabel ducts__c) in the fields list of the SOQL query.

Answer: D

Explanation:
Using toLabel() in the SOQL query ensures that picklist values are returned in the user's language, which is necessary for organizations that have the translation workbench enabled.
Multi-language Solutions: [Salesforce Developer Guide](https://developer.salesforce.com/docs/atlas.en-us.soql_sosl.meta/soql_s

NEW QUESTION # 171
A page throws an 'Attempt to dereference a null object' error for a Contact.
What change in the controller will fix the error?

A. Change the getter's signature to be static Contact.
B. Use a condition in the getter to return a new Contact if it is null.G Change the setter's signature to return a Contact.
C. Declare a static final Contact at the top of the controller.

Answer: B

Explanation:
The error 'Attempt to dereference a null object' often occurs when trying to access a member of a null object. By checking if the object is null in the getter method and returning a new instance if it is, the error can be prevented.
Apex Developer Guide

NEW QUESTION # 172
A developer created the following test method:

The developer org has five accounts where the name starts with "Test". The developer executes this test in the Developer Console. After the test code runs, which statement is true?

A. The test will fail.
B. There will be no accounts where the name starts with "Test".
C. There will be six accounts where the name starts with "Test".
D. There will be five accounts where the name starts with "Test".

Answer: A

Explanation:
Since the SeeAllData=true annotation is used, the test class does not have its own test data and is relying on the data in the org. The org already has accounts with the name starting with "Test", so the assertion that no accounts should exist after the deletion will fail because the test method only deletes the account that was created within its scope.
Apex Developer Guide

NEW QUESTION # 173
A developer wrote a trigger on Opportunity that will update a custom Last Sold Date field on the Opportunity's Account whenever an Opportunity is closed. In the test class for the trigger, the assertion to validate the Last Sold Date field fails.
What might be causing the failed assertion?

A. The test class has not re-queried the Account record after updating the Opportunity.
B. The test class has not implemented seealldata=true in the test method.
C. The test class is not using System. runs () to run tests as a Salesforce administrator.
D. The test class has not defined an Account owner when inserting the test data.

Answer: A

Explanation:
The test class may not be re-querying the Account record after updating the Opportunity, which is necessary to verify the updated field values. If the test does not query the database to get the most recent data after the trigger runs, it will not see the changes made by the trigger.

NEW QUESTION # 174
A developer creates a Lightning web component to allow a Contact to be quickly entered. However, error messages are not displayed.

Which component should the developer add to the form to display error messages?

A. lightning-error
B. lightning-messages
C. apex:messages
D. aura:messages

Answer: B

Explanation:
The correct answer is B, lightning-messages. This Lightning Web Components (LWC) service component provides a way to display error messages that are generated during the processing of lightning-input-field components within a lightning-record-edit-form.
Display Error Messages

NEW QUESTION # 175
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