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Salesforce Plat-Dev-301 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Testing, Debugging, and Deployment	20%	- Deployment strategies, CI/CD, and change management - Advanced testing strategies and test frameworks - Debugging and error handling across layers
Topic 2: User Interface Development	20%	- Optimize UI performance and usability - Build complex Lightning Web Components and Aura Components - Implement advanced Visualforce functionality
Topic 3: Advanced Developer Fundamentals	15%	- Work with localization, multi-currency, and global features - Apply security best practices in development - Design and maintain scalable, reusable code
Topic 4: 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 5: 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

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Salesforce Certified Platform Developer II - Multiple Choice Sample Questions (Q30-Q35):

NEW QUESTION # 30
A developer is creating a page in App Builder that will be used in the Salesforce mobile app.
Which two practices should the developer follow to ensure the page operates with optimal performance?
Choose 2 answers

A. Limit 25 fields on the record detail page.
B. Analyze the page with Performance Analysis for App Builder.
C. Limit five visible components on the page.
D. Limit the number of Tabs and Accordion components.

Answer: B,D

Explanation:
For mobile app pages in App Builder, best practices include limiting the number of heavy components like Tabs and Accordion because they can negatively impact performance due to increased client-side processing and data transfer. Also, using Performance Analysis in App Builder helps in identifying components that may slow down page performance and provides recommendations for improvements. Reference:
Optimize Performance in the Salesforce Mobile App
Lightning App Builder Performance Analysis

NEW QUESTION # 31
An Apex trigger and Apex class increment a counter, Edit __C, any time the Case is changed.

A)

B)

C)

D)

A. Option B
B. Option D
C. Option A
D. Option C

Answer: D

NEW QUESTION # 32
An org records customer order information in a custom object, ordar__c, that has fields for the shipping address. A developer is tasked with adding code to calculate shipping charges on an order, based on a flat percentage rate associated with the region of the shipping address.
What should the developer use to store the rates by region, so that when the changes are deployed to production no additional steps are needed for the calculation to work?

A. Custom list setting
B. Custom object
C. Custom hierarchy setting
D. Custom metadata type

Answer: D

Explanation:
Custom metadata types are ideal for storing configuration data such as shipping rates by region. These rates can be deployed to production without additional steps and can be queried in Apex, allowing the calculations to work immediately post-deployment.

NEW QUESTION # 33
Universal Containers wants to notify an external system, in the event that an unhandled exception occurs, by publishing a custom event using Apex.
What is the appropriate publish/subscribe logic to meet this requirement?

A. Have the external system subscribe to the event channel. No publishing is necessary.
B. Publish the error event using the Eventrus.publish() method and have the external system subscribe to the event using CometD.
C. Publish the error event using the addError () method and write a trigger to subscribe to the event and notify the external system.
D. Publish the error event using the addError () method and have the external system subscribe to the event using Comet

Answer: B

Explanation:
When an unhandled exception occurs, publishing a custom platform event using EventBus.publish() method is the appropriate way. The external system can then subscribe to this event using technologies like CometD to receive notifications. Publish and Subscribe to Platform Events

NEW QUESTION # 34
A developer wrote the following method to find all the test accounts in the org:

What should be used to fix this failing test?

A. Teat.loadData to set up expected data
B. @testsetup method to set up expected data
C. @isTest (SeeAllData=true) to access org data for the test
D. Test. fixsdSsarchReaulta [) method to set up expected data

Answer: D

Explanation:
https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_testing_SOSL.htm

NEW QUESTION # 35
......

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