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Salesforce Plat-Dev-301 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Architecture	18%	- Design patterns and Apex trigger frameworks - Governor limits and bulkification - Apex Enterprise Patterns - Namespace and package management
Topic 2: Integration	15%	- Platform Events and Change Data Capture - REST and SOAP web services (Apex callouts) - External Services and Connect REST API - Named Credentials and authentication
Topic 3: Testing, Debugging, and Deployment	15%	- Debugging and performance profiling - Test data strategies and mocking - Apex unit testing best practices - Deployment tools (SFDX, Metadata API)
Topic 4: Logic and Process Automation	22%	- Advanced Apex programming - Dynamic Apex and SOQL/SOSL - Invocable Actions and Platform Events - Asynchronous Apex (Batch, Queueable, Future, Scheduled)
Topic 5: Data Modeling	12%	- Advanced object relationships and data modeling - External objects and data sources - Large data volumes considerations
Topic 6: User Interface	18%	- Aura Components - Visualforce advanced controllers - Lightning Data Service - Lightning Web Components (LWC) advanced features

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Salesforce Certified Platform Developer II - Multiple Choice Sample Questions (Q119-Q124):

NEW QUESTION # 119
Refer to the following code snippets:
A developer is experiencing issues with a Lightning web component. The component must surface information about Opportunities owned by the currently logged-in user.

When the component is rendered, the following message is displayed: "Error retrieving data". Which modification should be implemented to the Apex class to overcome the issue?

A. Ensure the OWD for the Opportunity object is Public.
B. Use the Continuation=true attribute in the Apex method.
C. Use the Cacheable=true attribute in the Apex method,
D. Edit the code to use the w. cut sharing keyword in the Apex class.

Answer: C

Explanation:
The @AuraEnabled(cacheable=true) attribute allows caching of method results on the client side, reducing server trips for already fetched data, which is useful for read-only data.

NEW QUESTION # 120
An Aura component has a section that displays some information about an Account and it works well on the desktop, but users have to scroll horizontally to see the description field output on their mobile devices and tablets.

How should a developer change the component to be responsive for mobile and tablet devices? A)

B)

C)

D)

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

Answer: C

Explanation:
To make the Aura component responsive, the developer should set multipleRows="true" to allow the layout items to wrap onto multiple rows on smaller devices. Additionally, setting the size attribute for different device sizes ensures that the layout adapts to the screen width.

NEW QUESTION # 121
Which three approaches should a developer implement to obtain the best performance for data retrieval when building a Lightning web component? Choose 3 answers

A. Use getRecordUi to obtain metadata.
B. Use lazy load for occasionally accessed data.
C. Use layoutTypes: 9'Full') to display a set of fields.
D. Use {Cacheable=true} whenever possible
E. Use the Lightning Data Service.

Answer: B,D,E

Explanation:
Lazy loading improves performance by loading data only when needed.
Lightning Data Service (LDS) handles data operations and caching efficiently.
Using {Cacheable=true} on Apex methods enables the Lightning Component framework to cache the method's return value, reducing server round-trips for the same data.
Lightning Web Components Developer Guide

NEW QUESTION # 122
A developer created an Opportunity trigger that updates the account rating when an associated opportunity is considered high value. Current criteria for an opportunity to be considered high value is an amount greater than or equal to $1,000,000. However, this criteria value can change over time.
There is a new requirement to also display high value opportunities in a Lightning web component.
Which two actions should the developer take to meet these business requirements, and also prevent the business logic that obtains the high value opportunities from being repeated in more than one place?
Choose 2 answers

A. Leave the business logic code inside the trigger for efficiency.
B. Call the trigger from the Lightning web component.
C. Create a helper class that fetches the high value opportunities,
D. Use custom metadata to hold the high value amount.

Answer: C,D

Explanation:
Creating a helper class allows the logic to be centralized and reused in both the trigger and the Lightning Web Component (LWC), avoiding repetition. Using custom metadata to store the criteria value allows easy updates without code changes and can be referenced from both the helper class and the trigger.
Apex Developer Guide
Custom Metadata Types Guide

NEW QUESTION # 123
A developer needs to send Account records to an external system for backup purposes. The process must take a snapshot of Accounts as they are saved and then make a callout to a RESTful web service. The web service can only receive, at most, one record per call.
What should a developer do to implement these requirements?

A. Implement the Queveable interface.
B. Implement platform events.
C. Create a future method.
D. Expose an Apex class as e web service.

Answer: D

NEW QUESTION # 124
......

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