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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Performance and Data Management | 18% | - Data modeling and complex data operations - Governor limits optimization and best practices - Optimize queries and handle large data volumes |
| Topic 2: Advanced Developer Fundamentals | 15% | - Design and maintain scalable, reusable code - Work with localization, multi-currency, and global features - Apply security best practices in development |
| Topic 3: Logic, Process Automation, and Integration | 27% | - Complex business logic and automation design - Asynchronous Apex: future, queueable, batch, scheduled - Advanced Apex programming and transaction management - REST/SOAP API, Platform Events, and external integrations |
| Topic 4: User Interface Development | 20% | - Build complex Lightning Web Components and Aura Components - Implement advanced Visualforce functionality - Optimize UI performance and usability |
| Topic 5: Testing, Debugging, and Deployment | 20% | - Advanced testing strategies and test frameworks - Debugging and error handling across layers - Deployment strategies, CI/CD, and change management |
>> Plat-Dev-301 Valid Study Notes <<
It is similar to the Plat-Dev-301 desktop-based software, with all the elements of the desktop practice exam. This mock exam can be accessed from any browser and does not require installation. The Salesforce Certified Platform Developer II - Multiple Choice (Plat-Dev-301) questions in the mock test are the same as those in the real exam. And candidates will be able to take the web-based Salesforce Certified Platform Developer II - Multiple Choice (Plat-Dev-301) practice test immediately through any operating system and browsers.
NEW QUESTION # 181
Consider the above 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?
Answer: A,B
Explanation:
Moving the SOQL query outside the loop prevents it from being executed multiple times, which can lead to hitting governor limits. The last line updating the accountList is indeed needed to save the changes made to the Account records, so removing it is not recommended. Instead, the query should be moved outside the loop and records should be collected in a map for efficiency, which is not one of the provided options. Reference:
Apex Developer Guide - Best Practices for Apex
NEW QUESTION # 182
The use of the transient keyword in Visualforce page controllers helps with which common performance issue?
Answer: A
Explanation:
The transient keyword in Visualforce page controllers marks variables that should not be part of the view state, which can significantly reduce the size of the view state. This can help avoid view state limit errors and improve page performance because a smaller view state requires less time to send to the client.
NEW QUESTION # 183
What is the best practice to initialize a Vizualforce page in a test class?
Answer: B
Explanation:
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.
NEW QUESTION # 184
A developer created 2 class that implements the Queueable Interface, as follows:
As part of the deployment process, the developer is asked to create a corresponding test class. Which two actions should the developer take to successfully execute the test class? Choose 2 answers
Answer: B,C
Explanation:
When writing a test class for a Queueable class in Salesforce, the goal is to ensure that the asynchronous code is executed within the test context and that it does not affect the state of the production org or depend on its data.
Option C is correct because using Test.startTest() and Test.stopTest() ensures that the asynchronous code is executed immediately within the test's context. This is essential for testing Queueable classes because it allows the test to wait for the asynchronous process to complete before assertions are made. Without this, the asynchronous job would not necessarily run during the test execution.
Option D is correct because Test.isRunningTest() can be used within the Queueable class to prevent the chaining of jobs during test execution. Chaining queueable jobs can lead to governor limits being hit and is generally not allowed in test methods. This conditional check allows the developer to bypass sections of the code not suitable for a testing context.
Option A is incorrect because the seeAllData=True annotation is not required for testing Queueable classes, and it is not a best practice to depend on live data for tests. It's preferable to create test data within the test class itself.
Option B is incorrect because having the 'View All' permission on the Order object is not related to the successful execution of the Queueable class in tests. Permissions are typically not enforced in test contexts unless using System.runAs() to test with a specific user context.
Salesforce Documentation on Queueable Apex: Queueable Apex
Salesforce Documentation on Testing Asynchronous Apex: Testing Asynchronous Apex
NEW QUESTION # 185
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?
Answer: A
NEW QUESTION # 186
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