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Salesforce Plat-Dev-301 Exam Syllabus Topics:

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

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Salesforce Certified Platform Developer II - Multiple Choice Sample Questions (Q173-Q178):

NEW QUESTION # 173
After a platform event is defined in a Salesforce org,events can be published via which mechanism?

A. Internal Apps can use entitlement processes.
B. Internal Apps can use outbound messages.
C. External Apps use an API Co publish event messages.
D. External Apps require the standard Streaming API.

Answer: C

Explanation:
Platform events in Salesforce can be published using a variety of mechanisms, including from external applications through the Salesforce APIs.
Option A is correct because external applications can use Salesforce APIs such as the REST API or the SOAP API to publish events to a platform event in Salesforce.
Options B, C, and D describe mechanisms that are not used for publishing platform events. Entitlement processes are for setting up and tracking service contracts, the standard Streaming API is for subscribing to events not publishing them, and outbound messages are a workflow action used to send information to external services, not for publishing platform events.
Salesforce Developer Documentation - Platform Events

NEW QUESTION # 174
Which three Visualforce components can be used to initiate Ajax behavior to perform partial page updates?
Choose 3 answers

A. <apex:commondLink>
B. <Apex:form>
C. <apex:commandButton>
D. <apex:actionsStatus>
E. <apex:actionSupport>

Answer: A,C,E

Explanation:
<apex:commandLink> and <apex:commandButton> components can cause the form data to be sent to the server and can be configured to refresh specific parts of the page.
<apex:actionSupport> adds AJAX support to other components and can trigger partial page updates based on events such as onclick, onchange, etc.
Visualforce Guide

NEW QUESTION # 175
Exhibit.

Given the code above, which two changes need to be made in the Apex Controller for the code to work? Choose 2 answers

A. Change the method signature to be global static, not public to String.
B. Change the argument in the Apex Controller line 05 from subject to string.
C. Annotate the entire class as @AuraEnabled instead of just the single method.
D. Remove line 06 from the Apex Controller and instead use firstName in the return on line 07.

Answer: B,D

Explanation:
Based on the code provided, here are the necessary changes:
Change B is required because the argument in the Apex controller's serverEcho method must match the data type expected by the JavaScript calling the method. The Apex method expects an Object named firstName, which is then cast to a String inside the method. The JavaScript is passing an object with a property firstName, so no change is needed in the JavaScript.
Change D is correct because line 06 is redundant and unnecessary. We can directly use firstName in the return statement as it is already a String type. The get() method is typically used when you have a Map and you need to retrieve a value by its key. Since firstName is already being passed as a String, there's no need to cast it or retrieve it using get().
Apex Developer Guide

NEW QUESTION # 176
Which use case can be performed only by using asynchronous Apex?

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

Answer: D

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 # 177
Assuming the CreateOneAccount class creates one account and implements the Queueable interface, which syntax properly tests the Apex code?
A)

B)

C)

D)

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

Answer: C

Explanation:
To test Queueable Apex, Test.startTest() and Test.stopTest() should be used to ensure the asynchronous code is executed before assertions are made. After calling Test.stopTest(), you would then query for the records to assert that the queueable job correctly created the Account records.

NEW QUESTION # 178
......

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