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Salesforce Plat-Dev-301 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Data Modeling12%- Large data volumes considerations
- External objects and data sources
- Advanced object relationships and data modeling
Topic 2: Integration15%- Named Credentials and authentication
- External Services and Connect REST API
- REST and SOAP web services (Apex callouts)
- Platform Events and Change Data Capture
Topic 3: Logic and Process Automation22%- Dynamic Apex and SOQL/SOSL
- Advanced Apex programming
- Invocable Actions and Platform Events
- Asynchronous Apex (Batch, Queueable, Future, Scheduled)
Topic 4: Architecture18%- Design patterns and Apex trigger frameworks
- Governor limits and bulkification
- Apex Enterprise Patterns
- Namespace and package management
Topic 5: User Interface18%- Lightning Data Service
- Aura Components
- Visualforce advanced controllers
- Lightning Web Components (LWC) advanced features
Topic 6: Testing, Debugging, and Deployment15%- Debugging and performance profiling
- Test data strategies and mocking
- Apex unit testing best practices
- Deployment tools (SFDX, Metadata API)

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Salesforce Certified Platform Developer II - Multiple Choice Sample Questions (Q44-Q49):

NEW QUESTION # 44
A developer is building a Lightning web component that retrieves data from Salesforce and assigns it to the record property.

What must be done in the component to get the data from Salesforce? A)

B) C)

Answer: C

Explanation:
Option A is the correct answer. The @wire decorator is used in conjunction with getRecord from lightning/uiRecordApi to retrieve a record from Salesforce. The syntax @wire(getRecord, { recordId: '$recordId', fields: '$fields' }) sets up a reactive property, which means it will automatically rerun whenever the recordId or fields property changes.
Get Record Data


NEW QUESTION # 45
A company has many different unit test methods that create Account records as part of their data setup. A new required field was added to the Account and now all of the unit tests fail.
What is the optimal way for a developer to fix the issue?

Answer: D

Explanation:
The optimal way to fix the failing unit tests after adding a new required field to the Account object is to create a TestDataFactory class that serves as a centralized place to create Accounts for unit tests. This class would include the new required field, ensuring that all unit tests have the necessary data setup.


NEW QUESTION # 46
Which three approaches should a developer implement to obtain the best performance for data retrieval when building a Lightning web component? Choose 3 answers

Answer: A,C,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 # 47
A company has a Lightning page with many Lightning Components, some that cache reference dat a. It is reported that the page does not always show the most current reference data.
What can a developer use to analyze and diagnose the problem in the Lightning page?

Answer: A

Explanation:
The Storage tab in the Salesforce Lightning Inspector can be used to view and manage data stored on the client side, such as in the cache. This is useful for diagnosing issues related to stale or outdated cache data that may prevent the most current reference data from displaying.


NEW QUESTION # 48
A developer created a Lightning web component mat allows users to Input a text value that is used to search for Accounts by calling an Apex method. The Apex method returns a list of account to apply and is called imperatively from a JavaScript event handler.

Which two changes should the developer make so the Apex method functions correctly. Choose 2 answers

Answer: A,C


NEW QUESTION # 49
......

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