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Salesforce Plat-Dev-301 Exam Syllabus Topics:

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

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Salesforce Certified Platform Developer II - Multiple Choice Sample Questions (Q140-Q145):

NEW QUESTION # 140
Consider the following code snippet:

Which two steps should the developer take to add flexibility to change the endpoint and credentials without needing to modify code? Choose 2 answers

A. Store the URL of the endpoint in a custom Label named endpointuRL.
B. Use red. setEndpoint (Label.endPointURL) ;.
C. Use req. setindpoint ('callout:endFoint_NC'); within the callout request.
D. Create a Named Credential, endPcint_wc, ta store the endpoint and credentials.

Answer: A,C

NEW QUESTION # 141
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. 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.
B. 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.
C. The mass update will fail, since the two triggers fire in the same context, thus exceeding the number of records processed by DML statements.
D. 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.

Answer: C

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 # 142
A developer is asked to look into an issue where a scheduled Apex is running into DML limits. Upon investigation, the developer finds that the number of records processed by the scheduled Apex has recently increased to more than 10,000.
What should the developer do to eliminate the limit exception error?

A. Implement the Batchable interface.
B. Use the @future annotation.
C. Implement the Qususabls interface.
D. Use platform events.

Answer: A

Explanation:
When scheduled Apex runs into DML limits due to a high number of records, implementing the Batchable interface is recommended. This allows the job to be broken down into smaller batches that are processed separately, thus avoiding hitting governor limits. Reference:
Using Batch Apex

NEW QUESTION # 143
Universal Containers develops a Salesforce application that requires frequent interaction with an external REST API.
To avoid duplicating code and improve maintainability, how should they implement the APL integration for code reuse?

A. Use a separate Apex class for each API endpoint to encapsulate the integration logic,
B. Include the API integration code directly in each Apex class that requires it.
C. Store the APT integration code as a static resource and reference it in each Apex class.
D. Create a reusable Apex class for the AFL integration and invoke it from the relevant Apex classes.

Answer: D

Explanation:
Creating a reusable Apex class for API integration allows for code encapsulation and maintainability. This class can then be invoked from any other Apex class that requires interaction with the API, preventing code duplication.

NEW QUESTION # 144
There is an Apex controller and a Visualforce page in an org that displays records with a custom filter consisting of a combination of picklist values selected by the user.
The page takes too long to display results for some of the input combinations, while for other input choices it throws the exception, "Maximum view state size limit exceeded".
What step should the developer take to resolve this issue?

A. Remove instances of the transient keyword from the Apex controller to avoid the view state error.
B. Use a StandardSetController or SOQL LIMIT in the Apex controller to limit the number of records displayed at a time.
C. Adjust any code that filters by picklist values since they are not indexed,
D. Split the layout to filter records in one Visualforce page and display the list of records in a second page using the same Apex controller.

Answer: B

Explanation:
To resolve the issue of the Visualforce page taking too long to display results or exceeding the view state limit, the developer should use a StandardSetController or implement SOQL LIMIT in the Apex controller. This limits the number of records that are processed and displayed at one time, which can prevent view state errors and improve performance.

NEW QUESTION # 145
......

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