最受推薦的Plat-Dev-301題庫下載，免費下載Plat-Dev-301考試資料幫助妳通過Plat-Dev-301考試

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Salesforce Plat-Dev-301 Exam Syllabus Topics:

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

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最新的 Salesforce Developer Plat-Dev-301 免費考試真題 (Q178-Q183):

問題 #178
A company has a custom object, Order__c, that has a custom picklist field, Status__c, with values of `"New', `"In Progress', or `"Fulfilled' and a lookup field, Contact__c, to Contact.
Which SOQL query will return a unique list of all the Contact records that have no `"Fulfilled' Orders?

A. SELECT Id FROM Contact WHERE Id NOT IN (SELECT Contact__c FROM Order__c WHERE Status__c = 'Fulfilled')
B. SELECT Contact__c FROM Order__c WHERE Status__c <> 'Fulfilled'
C. SELECT Contact__c FROM Order__c WHERE Id NOT IN (SELECT Id FROM Order__c Where Status__c = 'Fulfilled')
D. SELECT Id FROM Contact WHERE Id NOT IN (SELECT Id FROM Order__c WHERE Status__c = 'Fulfilled')

答案：A

解題說明：
The correct SOQL query to return a unique list of Contact records that have no 'Fulfilled' Orders is one that selects Ids from the Contact object where the Contact Id is not in the set of Contact Ids related to 'Fulfilled' Orders. This is done by a subquery that selects the Contact__c field from the Order__c records where the Status__c is 'Fulfilled'.

問題 #179
What is the best practice to initialize a Vizualforce page in a test class?

A. Use Test. currantPage .getParamatars put (MyTaestPaga) ;
B. Use controller. currentPage. setPage (MyTastfage) ;
C. Use Test. setCurrentPage MyTestPags;
D. Use Test. setCurrentPage (Page. MyTeatPage);

答案：D

解題說明：
Test.setCurrentPage(Page.MyTestPage) is used to set the context to a Visualforce page in tests, allowing you to simulate a page request in a test method.

問題 #180
Given the following code:

Assuming there were 10 Contacts and five Accounts created today, what is the expected result?

A. System.QueryException: List has more than one row for Assignment on Account
B. System.QueryException: Too many DML Statement errors on Contact
C. Systemn.LimitException: Too many SOQL Queries on Account
D. System.LimitException: Too many SOQL Queries on Contact

答案：A

解題說明：
The loop contains a SOQL query inside, causing it to run multiple times. This will throw a QueryException because the Account query returns more than one row.

問題 #181
A company has a custom component that allows users to search for records of a certain object type by invoking an Apex Controller that returns a list of results based on the user's input. When the search is completed, a searchComplete event is fired, with the results put in a results attribute of the event. The component is designed to be used within other components and may appear on a single page more than once.
What is the optimal code that should be added to fire the event when the search has completed?
A)

B)

C)

D)

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

答案：A

解題說明：
The correct code to fire the event when the search has completed in a Lightning component is option B. $A.get("e.c.searchComplete") is the syntax used to get the event, setParams is used to set the parameters, and fire is used to dispatch the event.

問題 #182
A developer is trying to access org data from within a test class.
Which sObject type requires the test class to have the (seeAllData=true) annotation?

A. User
B. RecordType
C. Profile
D. Report

答案：D

解題說明：
https://salesforce.stackexchange.com/questions/149110/when-is-it-appropriate-to-use-seealldata-true

問題 #183
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