Plat-Dev-301软件版 & Plat-Dev-301試題

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Salesforce Plat-Dev-301 Exam Syllabus Topics:

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

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最新的 Salesforce Developer Plat-Dev-301 免費考試真題 (Q166-Q171):

問題 #166
An Apex trigger creates an order co record every time an Opportunity is won by a Sales Rep. Recently the trigger is creating two orders.
What is the optimal technique for 2 developer to troubleshoot this?

A. Run the Apex Test Classes for the Apex trigger to ensure the code still has sufficient code coverage.
B. Disable all flows, and then re-enable them one at at time to see which one causes the error.
C. Set up debug logging for every Sales Rep, then monitor the logs for errors and exceptions,
D. Add system.debug() statements to the code and use the Developer Console logs to trace the code.

答案：D

解題說明：
To troubleshoot the issue of a trigger creating two order records, adding System.debug() statements in the trigger and analyzing the log output in the Developer Console is an effective technique. This will help identify if the trigger is being called more than once or if there is another automation (such as a flow or workflow) causing the additional record creation.

問題 #167
Universal Containers implements a private sharing model for the Convention Attendee co custom object. As part of a new quality assurance effort, the company created an Event_Reviewer_c user lookup field on the object.
Management wants the event reviewer to automatically gain ReadWrite access to every record they are assigned to.
What is the best approach to ensure the assigned reviewer obtains Read/Write access to the record?

A. Create a before insert trigger on the Convention Attendee custom object, and use Apex Sharing Reasons and Apex Managed Sharing.
B. Create a criteria-based sharing rule on the Convention Attendee custom object to share the records with a group of Event Reviewers.
C. Create criteria-based sharing rules on the Convention Attendee custom object to share the records with the Event Reviewers,
D. Create an after insert trigger on the Convention Attendee custom object, and use Apex Sharing Reasons and Apex Managed Sharing.

答案：D

解題說明：
Use Apex Managed Sharing with an after insert trigger. It allows dynamic record sharing based on user-defined criteria like the Event_Reviewer_c field.

問題 #168
A developer is tasked with creating a Lightning web component that is responsive on various devices, Which two components should help accomplish this goal?
Choose 2 answers

A. Lightning-layout
B. lightning-navigation
C. lightning-layout--item
D. Lightning-input-location

答案：A,C

解題說明：
Lightning-layout and lightning-layout-item are components used in Lightning Web Components to create responsive grid layouts that adapt to the screen size of various devices.
Lightning Layout: Component Reference
Lightning Layout Item: Component Reference

問題 #169
An org has a requirement that addresses on Contacts and Accounts should be normalized to a company standard by Apex code any time that they are saved.
What is the optimal way to implement this?

A. Apex trigger on Contact that calls the Account trigger to normalize the address
B. Apex trigger on Account that calls the Contact trigger to normalize the address
C. Apex triggers on Contact and Account that call a helper class to normalize the address
D. Apex triggers on Contact and Account that normalize the address

答案：C

解題說明：
Apex triggers on Contact and Account with a helper class is the best practice for code reuse and maintaining clean trigger logic.

問題 #170
A developer created a JavaScript library that simplifies the development of repetitive tasks and features and uploaded the library as a static resource called rsutils in Salesforce. Another developer is coding a new Lightning web component (LWC) and wants to leverage the library, Which statement properly loads the static resource within the LWC?

A. <lightning-require scripts="{|$Resource,jaUtils}"/>
B. impore {jsUtilities} from '@salasforce/resourceUrl/jsUtils';
C. const jsUtilivy = SA.get{'SResource.isUtils');
D. import jsUtilities from '@salesforce/rescurceUr1/jaUtiles';

答案：B

解題說明：
To load a static resource within a Lightning web component, you should use an import statement with the @salesforce/resourceUrl module. This statement correctly refers to the static resource by its name.

問題 #171
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