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Salesforce Plat-Dev-301 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: User Interface Development	20%	- Implement advanced Visualforce functionality - Optimize UI performance and usability - Build complex Lightning Web Components and Aura Components
Topic 2: Advanced Developer Fundamentals	15%	- Apply security best practices in development - Work with localization, multi-currency, and global features - Design and maintain scalable, reusable code
Topic 3: Performance and Data Management	18%	- Governor limits optimization and best practices - Data modeling and complex data operations - Optimize queries and handle large data volumes
Topic 4: Logic, Process Automation, and Integration	27%	- Advanced Apex programming and transaction management - Asynchronous Apex: future, queueable, batch, scheduled - Complex business logic and automation design - REST/SOAP API, Platform Events, and external integrations
Topic 5: Testing, Debugging, and Deployment	20%	- Debugging and error handling across layers - Advanced testing strategies and test frameworks - Deployment strategies, CI/CD, and change management

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Salesforce Certified Platform Developer II - Multiple Choice Sample Questions (Q58-Q63):

NEW QUESTION # 58
A developer is asked to find a way to store sacret data with an ability to specify which profiles and users can access which secrets.
What should be used to store this data?

A. Custom metadata
B. system.Cookie class
C. Custom settings
D. Static resources

Answer: A

Explanation:
Custom metadata types are the optimal way to store secret data that needs to be accessed by certain profiles and users. Access to custom metadata records can be controlled by the Salesforce sharing model.

NEW QUESTION # 59
A developer built an Aura component for guests to self-register upon arrival at a front desk kiosk. Now the developer needs to create a component for the utility tray to alert users whenever a guest arrives at the front desk.
What should be used?

A. Changelog
B. DML Operation
C. Application Event
D. Component Event

Answer: C

Explanation:
Application Events in Aura components are used for communication between components that are not in the same containment hierarchy. An application event to alert users about the arrival of a guest at the front desk is appropriate because it allows any component within the app to listen and respond to the event, regardless of where it is located in the component hierarchy.

NEW QUESTION # 60
An environment has two Apex triggers: an after-update trigger on Account and an after-update trigger on Contact.
The Account after-update trigger fires whenever an Account's address is updated, and it updates every associated Contact with that address. The Contact after-update trigger fires on every edit, and it updates every Campaign Member record related to the Contact with the Contact's state.
Consider the following: A mass update of 200 Account records' addresses, where each Account has 50 Contacts. Each Contact has one Campaign Member. This means there are 10,000 Contact records across the Accounts and 10,000 Campaign Member records across the contacts.
What will happen when the mass update occurs?

A. The mass update of Account address will succeed, but the Contact address updates will fail due to exceeding number of records processed by DML statements.
B. The mass update will fail, since the two triggers fire in the same context, thus exceeding the number of records processed by DML statements.
C. There will be no error and all updates will succeed, since the limit on the number of records processed by DML statements was not exceeded.
D. There will be no error, since each trigger fires within its own context and each trigger does not exceed the limit of the number of records processed by DML statements.

Answer: B

Explanation:
In this scenario, the governor limit for DML statements (150 DML operations and 10,000 DML rows per transaction) will be exceeded because the updates will cascade across related objects, significantly multiplying the number of records processed.
Apex Developer Guide

NEW QUESTION # 61
Which three Visualforce components can be used to initiate Ajax behavior to perform partial page updates?
Choose 3 answers

A. <apex:commandButton>
B. <apex:commondLink>
C. <apex:actionSupport>
D. <Apex:form>
E. <apex:actionsStatus>

Answer: A,B,C

Explanation:
<apex:commandLink> and <apex:commandButton> components can cause the form data to be sent to the server and can be configured to refresh specific parts of the page.
<apex:actionSupport> adds AJAX support to other components and can trigger partial page updates based on events such as onclick, onchange, etc.
Visualforce Guide

NEW QUESTION # 62
Consider the controller code below that is called from an Aura component and returns data wrapped in a class.

The developer verified that the queries return a single record each and there is error handling in the Aura component, but the component is not getting anything back when calling the controller getSemeData. 'What is wrong?

A. Instances of Apex classes, such as MyDatsWrapper, cannot be returned to a Lightning component.
B. The member's Name and option should not be declared public.
C. The member's Kame and option of the class MyDataWrapper should be annotated with @AuraEnabled also.
D. The member's Name and option should not have getter and setter.

Answer: C

Explanation:
For the data to be passed back to the Aura component, all properties of the Apex class that are intended to be accessed from the component need to be annotated with @AuraEnabled. Without this annotation, the Aura framework cannot serialize the properties to send them to the front end.

NEW QUESTION # 63
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