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| Section | Weight | Objectives |
|---|---|---|
| Testing, Debugging, and Deployment | 20% | - Describe the process for debugging Aura and Lightning Web Components. - Given a scenario, identify the appropriate test setup logic. - Describe the best practices for testing Apex. - Describe the process for debugging Apex. - Describe the nuances of testing Visualforce controllers. - Describe the nuances of testing Apex triggers. - Describe the nuances of testing Aura components. - Describe the process for deploying Salesforce applications. - Describe the nuances of testing Lightning Web Components. |
| Performance | 18% | - Describe the performance implications of the different asynchronous Apex features. - Describe the considerations for query performance. - Describe the performance implications of the different trigger types. - Describe the common performance issues for user interfaces and the techniques to mitigate them. |
| User Interface | 20% | - Given a scenario, identify the correct communication mechanism. - Describe the nuances of event propagation in Aura and Lightning Web Components. - Describe the use cases for the different Lightning Web Component lifecycle hooks. - Describe the use cases for the Lightning Data Service. - Describe the process for creating Aura components. - Describe the nuances of the component communication patterns. - Describe the use cases for component events and application events. - Describe the use cases for the different Aura component bundle files. - Describe the process for creating Lightning Web Components. |
| Advanced Developer Fundamentals | 15% | - Describe the capabilities of the Schema.describeTabs() method. - Identify the best practices for writing Apex triggers. - Describe the nuances of Apex sharing rules and the difference between declarative and programmatic sharing. - Use the sObject describe result and field describe result to get information about sObjects and fields. - Given a scenario, identify the use of custom metadata and custom settings. - Describe the capabilities of the Schema.describeSObjects() method. - Describe the relationship between Apex transactions, the save order of execution, and the potential for recursion and/or cascading. - Describe the use cases for the System.Limits Apex methods. |
| Process Automation, Logic, and Integration | 27% | - Describe the use cases for the Schedulable interface. - Describe the use cases for the Batchable interface. - Describe the nuances of SOQL for loops. - Describe the use cases for and implications of the order of execution. - Describe the use cases for and nuances of Apex managed sharing. - Describe the use cases for the ConnectApi classes. - Given a scenario, identify the appropriate asynchronous Apex feature. - Describe the use cases for the Callable interface. - Describe the nuances of Apex triggers. - Describe the use cases for the Queueable interface. - Describe the use cases for Platform Events. - Describe the use cases for the publish-subscribe pattern. |
1. 開発者が、フィールド履歴の追跡機能を利用するAccountHistoryManagerというクラスを作成しました。このクラスには、Accountをパラメータとして受け取り、関連付けられたAccountHistoryオブジェクトのレコードのリストを返すgetAccountHistoryという静的メソッドがあります。以下のテストは失敗します。
Java
@isTest
public static void testAccountHistory(){
Account a = new Account(name = 'test');
insert a;
a.name = a.name + '1';
update a;
List<AccountHistory> ahList = AccountHistoryManager.getAccountHistory(a); System.assert(ahList.size() > 0);
}
このテストに合格するには何をすべきでしょうか?
A) このコードはテストできないため、テストメソッドを削除する必要があります。
B) @isTest(SeeAllData=true) を使用して、組織の履歴データを表示し、AccountHistory レコードを照会します。
C) テスト セットアップで AccountHistory レコードを手動で作成し、それらを取得するためのクエリを記述します。
D) getAccountHistory() で Test.isRunningTest() を使用して、条件付きで偽の AccountHistory レコードを返します。
2. 開発者がカレンダーを表示するLightning Webコンポーネントを作成しています。このコンポーネントは複数の国で使用されます。ロケールによっては、週の最初の曜日が月曜日、土曜日、または日曜日になることがあります。開発者は、すべてのロケールのユーザーにカレンダーが正しく表示されるようにするために、何をすべきでしょうか?
A) コンポーネントで UserInfo.getLocale() を使用します。
B) @salesforce/i18n モジュールをインポートし、firstDayOfWeek 国際化プロパティを使用します。
C) 現在のユーザーのロケールから FirstDayOfWeek フィールドを照会します。
D) カスタム メタデータ タイプを使用して、キーと値のペアを保存します。
3. 以下のコンポーネント コードと要件を参照してください。
HTML
<lightning:layout multipleRows="true">
<lightning:layoutItem size="12">{!v.account.Name}</lightning:layoutItem>
<lightning:layoutItem size="12">{!v.account.AccountNumber}</lightning:layoutItem>
<lightning:layoutItem size="12">{!v.account.Industry}</lightning:layoutItem>
</lightning:layout>
要件:
* モバイル デバイスの場合、情報は 3 行に表示されます。
* デスクトップとタブレットの場合、情報は 1 行に表示されます。
要件2が期待どおりに表示されません。デスクトップとタブレットの要件を満たす正しいコンポーネントコードを持つオプションはどれですか?
A) 1415
HTML
<lightning:layout multipleRows="true">
<lightning:layoutItem size="12" largeDeviceSize="4">{!v.account.Name}</lightning:layoutItem>
<lightning:layoutItem size="12" largeDeviceSize="4">{!v.account.AccountNumber}</lightning:
layoutItem>
<lightning:layoutItem size="12" largeDeviceSize="4">{!v.account.Industry}</lightning:layoutItem>
</lightning:layout>
B) HTML
<lightning:layout multipleRows="true">
<lightning:layoutItem size="12" mediumDeviceSize="4" largeDeviceSize="4"> {!v.account.Name} <
/lightning:layoutItem>
<lightning:layoutItem size="12" mediumDeviceSize="4" largeDeviceSize="4"> {!v.account.
AccountNumber} </lightning:layoutItem>
<lightning:layoutItem size="12" mediumDeviceSize="4" largeDeviceSize="4"> {!v.account.Industry}
</lightning:layoutItem>
</lightning:layout>
C) HTML
<lightning:layout multipleRows="true">
<lightning:layoutItem size="12" mediumDeviceSize="6">{!v.account.Name}</lightning:layoutItem>
<lightning:layoutItem size="12" mediumDeviceSize="6">{!v.account.AccountNumber}</lightning:
layoutItem>
<lightning:layoutItem size="12" mediumDeviceSize="6">{!v.account.Industry}</lightning:layoutItem>
</lightning:layout>
D) <lightning:layout multipleRows="true"></lightning:layout>1213
4. 以下のマークアップを参照してください。
HTML
<template>
<lightning-record-form
record-id={recordId}
object-api-name="Account"
layout-type="Full">
</lightning-record-form>
</template>
Lightning Webコンポーネントは、取引先名と、オブジェクトに存在する275個のカスタム項目のうち2つを表示します。カスタム項目は正しく宣言され、値も入力されています。しかし、開発者はコンポーネントのパフォーマンスが遅いという苦情を受けています。開発者はパフォーマンスを改善するために何をすればよいでしょうか?
A) layout-type="Full" を layout-type="Partial" に置き換えます。
B) コンポーネントに cache="true" を追加します。
C) コンポーネントに density="compact" を追加します。
D) layout-type="Full" を fields={fields} に置き換えます。
5. ある企業のLightningページには、多数のLightningコンポーネントが含まれており、その中には参照データをキャッシュするものもあります。このページに最新の参照データが表示されないという報告を受けています。開発者は、Lightningページの問題を分析・診断するためにどのようなツールを活用すればよいでしょうか?
A) Salesforce Lightning Inspector アクションタブ56
B) Salesforce Lightning Inspector イベントログタブ34
C) Salesforce Lightning Inspector ストレージタブ12
D) Salesforce Lightning Inspector トランザクションタブ78
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: B | Question # 3 Answer: B | Question # 4 Answer: D | Question # 5 Answer: C |
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