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

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Salesforce Certified Platform Developer II - Multiple Choice Sample Questions (Q126-Q131):

NEW QUESTION # 126
A company wants to incorporate a third-party weh service to set the Address fields when an Account is inserted, if they have not already been set.
What is the optimal way to achieve this?

A. Create a Before Save Flow, execute a Queueable job from it, and make a callout from the Queusable job.
B. Create a Process, execute a Quaueable job from it, and make a callout from the Queueable job.
C. Create an Apex trigger, execute a Queueable job from it, and make a callout from the Queueable job.
D. Create a Workflow Rule, execute a Queueable job from it, and make a callout from the Queueable job.

Answer: C

Explanation:
To make a callout to set the Address fields when an Account is inserted without violating the Salesforce limit against callouts from triggers, a developer can use a trigger to execute a Queueable job. The Queueable job can then safely make the callout.

NEW QUESTION # 127
A corporation has many different Salesforce orgs, with some different objects and some common objects, and wants to build a single Java application that can create, retrieve, and update common object records in all of the different orgs.
Which method of integration should the application use?

A. SOAP API with the Partner WSDL
B. Apex REST Web Service
C. Metadata APT
D. SOAP API with the Enterprise WSDL

Answer: A

Explanation:
The SOAP API with the Partner WSDL is ideal for building integrations that work across multiple Salesforce orgs, especially when they have varying schemas. The Partner WSDL is designed to be flexible and dynamic, catering to different metadata.

NEW QUESTION # 128
Universal Containers wants to notify an external system, in the event that an unhandled exception occurs, by publishing a custom event using Apex.
What is the appropriate publish/subscribe logic to meet this requirement?

A. Publish the error event using the Eventrus.publish() method and have the external system subscribe to the event using CometD.
B. Publish the error event using the addError () method and write a trigger to subscribe to the event and notify the external system.
C. Publish the error event using the addError () method and have the external system subscribe to the event using Comet
D. Have the external system subscribe to the event channel. No publishing is necessary.

Answer: A

Explanation:
When an unhandled exception occurs, publishing a custom platform event using EventBus.publish() method is the appropriate way. The external system can then subscribe to this event using technologies like CometD to receive notifications. Publish and Subscribe to Platform Events

NEW QUESTION # 129
Consider the following code snippet:

As part of the deployment cycle, a developer creates the following test class:

When the test class runs, the assertion fails. Which change should the developer implement in the Apex test method to ensure the test method executes successfully? A)

B)

C)

D)

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

Answer: D

Explanation:
To ensure that test methods execute successfully and are able to verify the behavior of the code, it is important to set up the proper context and to make sure that the test covers the expected outcomes accurately.
Option B is correct because enclosing the method call within Test.startTest() and Test.stopTest() ensures that any asynchronous operations are completed before the assertions are made. This is crucial when the code being tested is expected to perform operations that may run after the initial transaction, such as future methods, queueable jobs, or batch operations.
Options A, C, and D are incorrect because they do not address the issue of ensuring that all operations are completed before the assertion is made. Option A incorrectly suggests modifying the test setup code, while Options C and D suggest changes that are not related to the test execution flow.
Salesforce Developer Documentation on Testing Best Practices: Apex Testing Best Practices

NEW QUESTION # 130
Consider the below trigger intended to assign the Account to the manager of the Account's region:

Which two changes should a developer make in this trigger to adhere to best practices? Choose 2 answers A)

B)

C)

D)

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

Answer: B,D

Explanation:
The best practices for writing triggers in Salesforce include bulkifying your code to handle multiple records efficiently and reducing the number of SOQL queries, especially within loops, to avoid hitting governor limits.
Option B is correct because moving the SOQL query outside of the for loop is essential to bulkify the trigger. Performing a query within a loop can cause a SOQL governor limit to be reached if the trigger is processing many records. The best practice is to collect all necessary data before the loop starts and then process it within the loop.
Option C is correct as well, because using a Map to cache the results of a SOQL query by Id is another way to bulkify the code. This allows you to query all the necessary data once and then access it efficiently in memory, avoiding repeated queries.
Option A is incorrect because adding isExecuting before the update doesn't address any best practices related to bulkification or SOQL query optimization.
Option D is incorrect because the last line should not be removed if the developer intends to perform DML on the accountList. However, this line should be outside of the loop and is unnecessary if the trigger context is 'before insert' or 'before update', since in those contexts, changes to records in Trigger.new are implicitly saved without the need for explicit DML.
Apex Developer Guide on Triggers: Triggers and Order of Execution
Salesforce Developer Blog on Trigger Best Practices: Trigger Best Practices

NEW QUESTION # 131
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