P.S. PassTestがGoogle Driveで共有している無料かつ新しいPlat-Dev-301ダンプ：https://drive.google.com/open?id=1AikcwCP2ltQ6J6EwOZ49XTMRutIIj0Ue
毎年のPlat-Dev-301試験問題は、テストの目的に基づいてまとめられています。すべての回答はテンプレートであり、2つのパートの主観的および客観的なPlat-Dev-301試験があります。この目的のために、認定試験のPlat-Dev-301トレーニング資料では、問題解決スキルを要約し、一般的なテンプレートを紹介しています。ユーザーは、提供された回答テンプレートに基づいて回答をスカウトし、スコアをスカウトできます。そのため、ユニバーサルテンプレートは、ユーザーがPlat-Dev-301試験を勉強して合格するための貴重な時間を大幅に節約できます。
| Section | Objectives |
|---|---|
| Testing and Deployment | - Testing strategies
|
| Integration and APIs | - Platform events and messaging
|
| Data Modeling and Management | - Advanced data modeling
|
| Application Development | - Advanced Apex programming
|
証明書は私たちの日常生活で重要です。現在、Plat-Dev-301試験に合格するすべての受験者に、選択可能な3つの異なるバージョンを提供しています。 Plat-Dev-301試験問題のAPPバージョンは、オフライン状態で機能します。クイズ準備を使用する場合、最新のPlat-Dev-301試験トレントをいつでもどこでも使用できます。オフライン状態のPlat-Dev-301実践ガイドを使用して、どのようにして学習を楽しむことができますか？オフライン状態で動作するバージョンをダウンロードするだけで、初めてPlat-Dev-301クイズトレントのバージョンをオンラインで使用する必要があります。
質問 # 61
A developer is developing a reusable Aura component that will reside on an sObject Lightning page with the following HTML snippet:
How can the component"5 controller get the context of the Lightning page that the sObject is on without requiring additional test coverage?
正解：C
解説：
By implementing force:hasSobjectName, the Aura component can retrieve the sObject context of the record page it is placed on without needing additional information. This interface provides the component with the API name of the sObject being displayed.
Aura Components Developer Guide
質問 # 62
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：A
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 # 63
Universal Containers (UC) has enabled the translation workbench and has translated picklist values. UC has a custom multi-select picklist field, Product__c, on the Account object that allows sales reps to specify which of UC's products an Account already has. A developer is tasked with writing an Apex method that retrieves Account records, including the Product_c field.
What should the developer do to ensure the value of Products__c is in the current user's language?
正解：B
解説：
Using toLabel() in the SOQL query ensures that picklist values are returned in the user's language, which is necessary for organizations that have the translation workbench enabled.
Multi-language Solutions: [Salesforce Developer Guide](https://developer.salesforce.com/docs/atlas.en-us.soql_sosl.meta/soql_s
質問 # 64
A developer implemented a custom data table in a Lightning web component with filter functionality. However, users are submitting support tickets about long load times when the filters are changed. The component uses an Apex method that is called to query for records based on the selected filters.
What should the developer do to improve performance of the component?
正解：B
解説：
When faced with performance issues in a Lightning Web Component (LWC) due to SOQL query load times, the optimal approach is often to improve the query's selectivity. This can be achieved by using a selective SOQL query with a custom index. Salesforce can create custom indexes to improve the performance of queries that cannot be optimized through standard indexing. When a query is selective, it can efficiently retrieve records from the database using the index, thus reducing the query execution time and speeding up the component's performance when filters are changed. The other options (returning all records, using SOSL, or client-side caching) do not directly address the root cause of the performance issue, which is the need for a more efficient database operation.
Make SOQL Query Selective
Use of Indexes in SOQL Queries
質問 # 65
When developing a Lightning web component, which setting displays lightninglayout-items im one column on small devices, such as mobile phones, and in two columns on tablet-size and desktop-size screens?
正解：B
解説：
To display lightning-layout-items in one column on small devices and in two columns on larger devices, you should set the size attribute to "12" for small devices and the medium-device-size attribute to "6". This ensures that on small devices each item takes the full width, and on medium or larger devices, items take up half the width.
質問 # 66
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Plat-Dev-301模擬問題: https://www.passtest.jp/Salesforce/Plat-Dev-301-shiken.html
無料でクラウドストレージから最新のPassTest Plat-Dev-301 PDFダンプをダウンロードする：https://drive.google.com/open?id=1AikcwCP2ltQ6J6EwOZ49XTMRutIIj0Ue