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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Logic and Process Automation | 22% | - Advanced Apex programming - Dynamic Apex and SOQL/SOSL - Invocable Actions and Platform Events - Asynchronous Apex (Batch, Queueable, Future, Scheduled) |
| Topic 2: Architecture | 18% | - Apex Enterprise Patterns - Governor limits and bulkification - Namespace and package management - Design patterns and Apex trigger frameworks |
| Topic 3: User Interface | 18% | - Lightning Web Components (LWC) advanced features - Lightning Data Service - Aura Components - Visualforce advanced controllers |
| Topic 4: Data Modeling | 12% | - Advanced object relationships and data modeling - Large data volumes considerations - External objects and data sources |
| Topic 5: Integration | 15% | - Platform Events and Change Data Capture - External Services and Connect REST API - Named Credentials and authentication - REST and SOAP web services (Apex callouts) |
| Topic 6: Testing, Debugging, and Deployment | 15% | - Test data strategies and mocking - Deployment tools (SFDX, Metadata API) - Apex unit testing best practices - Debugging and performance profiling |
>> Salesforce Plat-Dev-301復習過去問 <<
Plat-Dev-301試験問題は正式に認定されています。 私たちSalesforceの目標は、効率的な学習スタイルで、Salesforce Certified Platform Developer II - Multiple Choice関連するPlat-Dev-301試験に合格できるようにすることです。 Plat-Dev-301トレーニング資料の品質と手頃な価格により、当社の競争力は常に世界のリーダーです。 Plat-Dev-301学習教材は、他のトレーニング教材よりも高い合格率を持っているため、完全な結果を得ることができると確信しています。 Plat-Dev-301試験問題を使用すると、MogiExam成功が保証されます。
質問 # 111
Universal Containers stores user preferences in a Hierarchy Custom Setting, User_Prefs_c, with a Checkbox field, Show_Help_c. Company-level defaults are stored at the organizational level, but may be overridden at the user level. If a user has not overridden preferences, then the defaults should be used.
How should the Show_Help_c preference be retrieved for the current user?
正解：D
解説：
To retrieve the Show_Help__c preference for the current user from a hierarchy custom setting, the getInstance() method should be used. This method retrieves the custom setting data for the user or the organization default if no user-specific setting is found.
質問 # 112
A company has a custom component that allows users to search for records of a certain object type by invoking an Apex Controller that returns a list of results based on the user's input. When the search is completed, a searchComplete event is fired, with the results put in a results attribute of the event. The component is designed to be used within other components and may appear on a single page more than once.
What is the optimal code that should be added to fire the event when the search has completed?
A)
B)
C)
D)
正解：B
解説：
The correct code to fire the event when the search has completed in a Lightning component is option B. $A.get("e.c.searchComplete") is the syntax used to get the event, setParams is used to set the parameters, and fire is used to dispatch the event.
質問 # 113
A company has a Lightning page with many Lightning Components, some that cache reference dat a. It is reported that the page does not always show the most current reference data.
What can a developer use to analyze and diagnose the problem in the Lightning page?
正解：C
解説：
The Storage tab in the Salesforce Lightning Inspector can be used to view and manage data stored on the client side, such as in the cache. This is useful for diagnosing issues related to stale or outdated cache data that may prevent the most current reference data from displaying.
質問 # 114
When the code is executed, the callout is unsuccessful and the following error appears within the Developer Console:
System.CalloutException: Unauthorized endpoint
Which recommended approach should the developer implement
to resolve the callout exception?
正解：B
解説：
The System.CalloutException with the message "Unauthorized endpoint" typically indicates that the endpoint to which the callout is being made has not been authorized in the Salesforce org's security settings. To resolve this, the developer must navigate to the Remote Site Settings in the Salesforce Setup and add the endpoint URL as a new remote site. This step is necessary to authorize the Salesforce org to send outbound callouts to that specific endpoint. Annotating with @Future(Callout=true) is necessary for making callouts from methods that perform DML operations, but it does not resolve endpoint authorization issues. Similarly, changing the access modifier or using SetHeader() for authentication would not address the unauthorized endpoint error.
Remote Site Settings
Apex Developer Guide: Making Callouts Using Apex
質問 # 115
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
正解：B、C
解説：
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
質問 # 116
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