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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Data Modeling | 12% | - Large data volumes considerations - Advanced object relationships and data modeling - External objects and data sources |
| Topic 2: User Interface | 18% | - Aura Components - Lightning Data Service - Lightning Web Components (LWC) advanced features - Visualforce advanced controllers |
| Topic 3: Architecture | 18% | - Namespace and package management - Apex Enterprise Patterns - Design patterns and Apex trigger frameworks - Governor limits and bulkification |
| Topic 4: Testing, Debugging, and Deployment | 15% | - Debugging and performance profiling - Test data strategies and mocking - Deployment tools (SFDX, Metadata API) - Apex unit testing best practices |
| Topic 5: Integration | 15% | - REST and SOAP web services (Apex callouts) - External Services and Connect REST API - Platform Events and Change Data Capture - Named Credentials and authentication |
| Topic 6: Logic and Process Automation | 22% | - Dynamic Apex and SOQL/SOSL - Advanced Apex programming - Asynchronous Apex (Batch, Queueable, Future, Scheduled) - Invocable Actions and Platform Events |
This kind of polished approach is beneficial for a commendable grade in the Salesforce Certified Platform Developer II - Multiple Choice (Plat-Dev-301) exam. While attempting the exam, take heed of the clock ticking, so that you manage the Salesforce Plat-Dev-301 questions in a time-efficient way. Even if you are completely sure of the correct answer to a question, first eliminate the incorrect ones, so that you may prevent blunders due to human error.
NEW QUESTION # 67
A developer is writing code that requires making callouts to an external web service.
Which scenario necessitates that the callout be made in an asynchronous method?
Answer: C
Explanation:
Callouts cannot be made from a synchronous context such as an Apex trigger because they might exceed the maximum execution time, leading to timeouts. Asynchronous methods, such as future or Queueable, are required to handle callouts from triggers.
NEW QUESTION # 68
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?
Answer: D
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 # 69
A developer has working business logic code, but sees the following error in the test class:
You have uncommitted work pending. Please commit or rollback before calling out.
What is a possible solution?
Answer: B
Explanation:
The error "You have uncommitted work pending. Please commit or rollback before calling out" usually indicates that DML operations (like insert, update, delete) are being performed before a callout in a test context. This is not allowed because Salesforce does not support this sequence of operations in a single transaction. However, the use of seeAllData=true is generally not a recommended practice and does not address the core issue of mixed DML and callouts in tests. The correct solution is to use a mocking framework to simulate the callout response. By using Test.setMock(), developers can avoid performing actual callouts in test methods, thus bypassing the uncommitted work error.
Apex Developer Guide - Testing HTTP Callouts
Apex Developer Guide - Isolation of Test Data from Organization Data in Unit Tests
NEW QUESTION # 70
Refer to the Lightning component below:
The Lightning Component allows users to click a button to save their changes and then redirects them to a different page. Currently when the user hits the Save button, the records are getting saved, but they are not redirected. Which three techniques can a developer use to debug the JavaScript? Choose 3 answers
Answer: C,D,E
Explanation:
When debugging JavaScript in a Lightning Component, developers can utilize the following techniques:
A . Use console.log() messages in the JavaScript: This is a standard debugging technique to log information to the browser console, which can help trace the execution flow or output variable values.
B . Use the browser's dev tools to debug the JavaScript: Modern browsers come equipped with developer tools that can be used to set breakpoints, step through code, and inspect variables at runtime.
C . Enable Debug Mode for Lightning components for the user: Enabling Debug Mode for users provides more detailed error messages and unminified versions of client-side libraries, making it easier to debug issues.
Using the Developer Console to view checkpoints (Option D) and debug logs (Option E) is more relevant for Apex debugging rather than JavaScript.
Salesforce Documentation on Debugging Lightning Components: Debugging
NEW QUESTION # 71
Assuming the CreateOneAccount class creates one account and implements the Queueable interface, which syntax properly tests the Apex code?
A)
B)
C)
D)
Answer: B
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 # 72
......
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