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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Salesforce Fundamentals | 8% | - Performance and scalability - Security and access considerations - Data modeling and management |
| Topic 2: Testing, Deployment and Governance | 15% | - Governance and maintenance - Deployment tools and processes - Advanced testing strategies |
| Topic 3: Advanced Apex Programming | 32% | - Apex testing and deployment - Error handling and debugging - Apex design patterns and best practices - Asynchronous Apex |
| Topic 4: Advanced User Interfaces | 25% | - Aura Components - Lightning Web Components - Visualforce advanced techniques - Custom metadata and settings |
| Topic 5: Integration and Data Processing | 20% | - Event-driven architecture - External objects and connectors - Data migration and transformation - API integration (REST, SOAP, Bulk, Streaming) |
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NEW QUESTION # 61 
上記のコードセグメントを参照してください。
Apex トリガを作成するためのベストプラクティスに従う場合、間違っている、または懸念を引き起こす 2 行はどれですか?
2 つの答えを選択してください
Answer: B,C
NEW QUESTION # 62
開発者は、外部パートナーが 1 日に何百万ものリードを Salesforce に送信する方法を作成する必要があります。開発者はこの要件をどのように満たす必要がありますか?
Answer: A
NEW QUESTION # 63
マイオポチュニティ.js
JavaScript
import { LightningElement, api, wire } from 'lwc';
import getOpportunities from '@salesforce/apex/OpportunityController.findMyOpportunities'; export default class MyOpportunities extends LightningElement {
@api userId;
@wire(getOpportunities, {oppOwner: '$userId'})
opportunities;
}
OpportunityController.cls
Java
public with sharing class OpportunityController {
@AuraEnabled
public static List<Opportunity> findMyOpportunities(Id oppOwner) {
return [
SELECT Id, Name, StageName, Amount
FROM Opportunity
WHERE OwnerId = :oppOwner
];
}
}
開発者がLightning Webコンポーネントで問題を抱えています。このコンポーネントは、現在ログインしているユーザーが所有する商談に関する情報を表示する必要があります。コンポーネントをレンダリングすると、「データ取得エラー」というメッセージが表示されます。これを接続可能にするには、Apexメソッドでどのアクションを実行する必要がありますか？
Answer: C
Explanation:
To use the @wire service in a Lightning Web Component (LWC) to retrieve data from an Apex method, the Apex method must be marked as cacheable. In the provided OpportunityController class, the findMyOpportunities method is annotated with @AuraEnabled, but it lacks the mandatory cacheable=true property.
The @wire service is part of the Lightning Data Service (LDS) reactive framework. Salesforce requires wireable methods to be cacheable to improve performance and ensure that data can be stored in the client-side cache. Without (cacheable=true), the @wire decorator will fail to execute, resulting in the "Error retrieving data" message or a similar runtime failure.
Option C is the correct fix: the developer must update the annotation to @AuraEnabled(cacheable=true).
Option A (Continuation) is only for long-running external callouts. Option B (without sharing) might affect visibility but isn't a requirement for the wire service itself. Option D (OWD) affects whether records are visible based on security, but the technical failure described is rooted in the component-to-Apex binding requirement. Once marked as cacheable, the LDS can properly manage the data lifecycle for the component.
NEW QUESTION # 64
開発者は Salestorce と外部システム間の統合に取り組んでいます。統合には大量のデータを外部システムに送信する必要があるため、応答時間やタイムアウトが長くなる可能性があります。
パフォーマンスを最適化し、タイムアウトを回避するには、どの手法を使用する必要がありますか?
Answer: D
Explanation:
Implementing an asynchronous callout using the Continuation class is the optimal solution to handle long response times and avoid timeouts in Salesforce. It allows the Apex code to make a long-running request to an external service and free up the thread to serve other requests.References: Apex Developer Guide - Asynchronous Callouts
NEW QUESTION # 65
開発者は、Lightning データテーブル内のレコードのリストを表示する Lightning Web コンポーネントを作成しています。新しいレコードをデータベースに保存した後、リストが更新されません。
これを実現するには、開発者は上記のコードの何を変更する必要がありますか
起こる？
Answer: B
Explanation:
In Lightning Web Components (LWC), the data displayed in a component is not automatically refreshed when a new record is saved to the database. To refresh the displayed list of records in a lightning-datatable after a save operation, developers should use the refreshApex() function. This function is imported from the
@salesforce/apex module and is used to refresh the cache and re-execute the Apex wire method to fetch the latest data from the server. The @track decorator is no longer necessary in most cases due to reactive properties being the default behavior in LWC as of Spring '20 release. Also, calling refreshApex() on this.
data directly or creating a new tracked variable will not initiate a refresh of the cached data.
ferences:
Get Updated Data with refreshApex()
Lightning Web Components and Salesforce Data
NEW QUESTION # 66
......
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