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Salesforce Plat-Dev-301 Exam Syllabus Topics:

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

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Salesforce Certified Platform Developer II - Multiple Choice Sample Questions (Q180-Q185):

NEW QUESTION # 180
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. Use the Cacheable=true attribute in the Apex method,
B. Use the Continuation=true attribute in the Apex method.
C. Ensure the OWD for the Opportunity object is Public.
D. Edit the code to use the w. cut sharing keyword in the Apex class.

Answer: A

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 # 181
An Apex trigger creates a Contract record every time an Opportunity record is marked as Closed and Won. This trigger is working great, except (due to a recent acquisition) historical Opportunity records need to be loaded into the Salesforce instance.
When a test batch of records are loaded, the Apex trigger creates Contract records.
A developer is tasked with preventing Contract records from being created when mass loading the Opportunities, but the daily users still need to have the Contract records created.
'What is the most extendable way to update the Apex trigger to accomplish this?

A. Add the Profile ID of the user who loads the data to the trigger, so the trigger will not fire for this user.
B. Add a validation rule to the Contract to prevent Contract creation by the user who loads the data.
C. Use a list custom setting ta disable the trigger for the user who loads the data.
D. Use a hierarchy custom setting to skip executing the logic inside the trigger for the user who loads the data.

Answer: D

Explanation:
A hierarchy custom setting can be used to create a configuration that the trigger checks before executing its logic. This allows admins to set the configuration to bypass the trigger logic when loading data, without changing the trigger itself or impacting other users.

NEW QUESTION # 182
Which use case can be performed only by using asynchronous Apex?

A. Updating a record after the completion of an insert
B. Querying tens of thousands of records
C. Calling a web service from an Apex trigger
D. Making a call to schedule a batch process to complete in the future

Answer: C

Explanation:
Making a callout from an Apex trigger is not allowed synchronously; hence, such callouts must be performed in an asynchronous context. The only way to perform this within the Salesforce platform is by using asynchronous Apex, such as @future methods or Queueable Apex.

NEW QUESTION # 183
A developer is tasked with ensuring that email addresses entered into the system for Contacts and for a custom object called survey Response c do not belong to a list of blocked domains.
The list of blocked domains is stored in a custom object for ease of maintenance by users. The survey Response c object is populated via a custom Visualforce page.
What is the optimal way to implement this?

A. Implement the logic in validation rules on the Contact and the Burvey Response_c Objects.
B. Implement the logic in a helper class that is called by an Apex trigger on Contact and from the custom Visualforce page controller.
C. Implement the logic in the custom Visualforce page controller and call "that method from an Apex trigger on Contact.
D. Implement the logic in an Apex trigger on Contact and also implement the logic within the custom Visualforce page controller.

Answer: B

Explanation:
The optimal way to enforce the exclusion of blocked domains for email addresses entered into Contacts and a custom object is to use a helper class. The class can be called by an Apex trigger on the Contact object and from the controller of the custom Visualforce page used for the Survey Response. This centralizes the logic for maintainability and reusability.

NEW QUESTION # 184
Which code snippet processes records in the most memory efficient manner, avoiding governor limits such as "Apex heap size too large"?
A)

B) C)

D)

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

Answer: B

Explanation:
Option D, which uses the Database.query() method in combination with a for loop, is the most memory-efficient way to process records. This is known as the Query Locator pattern, which allows you to work with a large number of records by querying them in batches. This approach helps to avoid hitting the governor limit for "Apex heap size too large" as it processes one record at a time from the database without storing the entire result set in memory.
Working with Very Large SOQL Queries
Apex Governor Limits

NEW QUESTION # 185
......

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