Free PDF Salesforce - Plat-Dev-301 - Useful Salesforce Certified Platform Developer II - Multiple Choice Exam Flashcards

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Salesforce Plat-Dev-301 Exam Syllabus Topics:

Section	Objectives
Topic 1: Testing and Deployment	- Deployment lifecycle 1. Change sets and deployment tools 2. Version control and CI/CD concepts - Testing strategies 1. Code coverage and quality practices 2. Test data creation and mocking
Topic 2: Integration and APIs	- Platform events and messaging 1. Event-driven architecture 2. Change Data Capture concepts - External system integration 1. Callouts from Apex 2. REST and SOAP API usage
Topic 3: Data Modeling and Management	- Advanced data modeling 1. Large data volume considerations 2. Complex relationships and schema design - Data access and security 1. Sharing rules and Apex-managed sharing 2. Security enforcement in Apex
Topic 4: Application Development	- Asynchronous processing 1. Batch Apex and Queueable Apex 2. Future methods and limits considerations 3. Scheduled Apex - Advanced Apex programming 1. Apex design patterns and best practices 2. Dynamic Apex and metadata-driven development 3. Exception handling and debugging strategies

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Salesforce Certified Platform Developer II - Multiple Choice Sample Questions (Q118-Q123):

NEW QUESTION # 118
Consider the Apex controller below, that is called from an Aura component.

What is wrong with this code?

A. Line 8: method must first serialize the list to JSON before returning
B. Line 6: method must be static
C. Line 1: class must be global8. Lines 1 and 6: class and method must be global

Answer: A

Explanation:
The method defined in the Apex class must be static to be used as an Aura-enabled method. Aura-enabled methods need to be static because they are called by the Lightning framework without instantiating the class.

NEW QUESTION # 119
Refer to the exhibit

Users of this Visualforce page complain that the page does a full refresh every time the Search button Is pressed. What should the developer do to ensure that a partial refresh Is made so that only the section identified with opportunity List is re-drawn on the screen?

A. Enclose the DATA table within the <apex:actionRegion> tag.
B. Implement the render attribute on the <apex:ccxmandButton> tag.
C. Ensure the action method search returns null.
D. Implement the <apex:actionfunction> tag with immediate = true.

Answer: B

Explanation:
To ensure that only a part of the Visualforce page is refreshed, developers can use the reRender attribute of the <apex:commandButton> tag. This attribute specifies the IDs of the components that should be re-rendered as a result of the action method being completed. In this case, setting the reRender attribute to the ID of the <apex:pageBlockSection> that contains the opportunity list will cause only that section to be updated on the page, resulting in a partial page refresh.
The correct answer is B because it uses the reRender attribute correctly to update only the specific part of the page (opportunityList) without a full page refresh.
Salesforce Developer Documentation on Visualforce AJAX Components: Visualforce Developer Guide - CommandButton

NEW QUESTION # 120
Universal Containers ne=ds to integrate with several external systems. The process Is Initiated when a record Is created in Salesforce, The remote systems do not require Salesforce to wait for a response before continuing.
What is the recommended best solution to accomplish this?

A. PushTopic event
B. Trigger with HTTP callout
C. Qutbound message
D. Platform event

Answer: D

Explanation:
Platform events provide a robust and scalable way to communicate changes and events from Salesforce to external systems, especially when there is no requirement for Salesforce to wait for a response. They are designed to support event-driven architectures and can handle high volumes of events that can be published and consumed by external systems. Outbound messages, on the other hand, are limited by the need for an acknowledgment response from the target system, which can introduce latency.

NEW QUESTION # 121
A developer needs to send Account records to an external system for backup purposes. The process must take a snapshot of Accounts as they are saved and then make a callout to a RESTful web service. The web service can only receive, at most, one record per call.
What should a developer do to implement these requirements?

A. Implement platform events.
B. Implement the Queveable interface.
C. Create a future method.
D. Expose an Apex class as e web service.

Answer: D

NEW QUESTION # 122
A developer used custom settings to store some configuration data that changes occasionally. However, tests are now Failing in some of the sandboxes that were recently refreshed.
What should be done to eliminate this issue going forward?

A. Replace custom settings with static resources.
B. Set the setting type on the custom setting to Hierarchy.
C. Replace custom settings with custom metadata.
D. Set the setting type on the custom setting to List.

Answer: C

Explanation:
Replacing custom settings with custom metadata types is a good solution to ensure that test data is consistent across environments. Custom metadata types are deployable, and their records are available in test methods by default, unlike List Custom Settings which need to be manually recreated in each environment after a refresh.

NEW QUESTION # 123
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