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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Advanced Developer Fundamentals | 15% | - Describe the use cases for the System.Limits Apex methods. - Describe the capabilities of the Schema.describeSObjects() method. - 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. - Describe the capabilities of the Schema.describeTabs() method. - Identify the best practices for writing Apex triggers. - Given a scenario, identify the use of custom metadata and custom settings. - Describe the relationship between Apex transactions, the save order of execution, and the potential for recursion and/or cascading. |
| Topic 2: User Interface | 20% | - Describe the nuances of event propagation in Aura and Lightning Web Components. - Given a scenario, identify the correct communication mechanism. - Describe the use cases for the different Lightning Web Component lifecycle hooks. - Describe the use cases for the different Aura component bundle files. - 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 process for creating Lightning Web Components. - Describe the use cases for the Lightning Data Service. |
| Topic 3: Testing, Debugging, and Deployment | 20% | - Describe the nuances of testing Aura components. - Describe the process for debugging Aura and Lightning Web Components. - Describe the nuances of testing Apex triggers. - Describe the process for debugging Apex. - Describe the nuances of testing Visualforce controllers. - Describe the best practices for testing Apex. - Describe the nuances of testing Lightning Web Components. - Given a scenario, identify the appropriate test setup logic. - Describe the process for deploying Salesforce applications. |
| Topic 4: Performance | 18% | - Describe the performance implications of the different trigger types. - Describe the performance implications of the different asynchronous Apex features. - Describe the considerations for query performance. - Describe the common performance issues for user interfaces and the techniques to mitigate them. |
| Topic 5: Process Automation, Logic, and Integration | 27% | - Describe the use cases for the publish-subscribe pattern. - Describe the use cases for the Callable interface. - Describe the nuances of SOQL for loops. - Describe the use cases for the Queueable interface. - Describe the use cases for Platform Events. - Describe the nuances of Apex triggers. - Describe the use cases for and implications of the order of execution. - Describe the use cases for the Schedulable interface. - Describe the use cases for the ConnectApi classes. - Describe the use cases for the Batchable interface. - Describe the use cases for and nuances of Apex managed sharing. - Given a scenario, identify the appropriate asynchronous Apex feature. |
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NEW QUESTION # 120
Lightning コンポーネントから呼び出され、クラスにラップされたデータを返す上記のコントローラ コードを考えてみましょう。
Lightning コンポーネントから呼び出され、クラスにラップされたデータを返す上記のコントローラ コードを考えてみましょう。
開発者は、クエリがそれぞれ 1 つのレコードを返し、Lightning コンポーネントにエラー処理があることを確認しましたが、コントローラーの getSomeData() を呼び出すときに、コンポーネントは何も返されません。
なにが問題ですか？
Answer: C
NEW QUESTION # 121
次のコードがあるとします。
今日、10 件の取引先責任者と 5 件の取引先が作成されたと仮定すると、どのような結果が予想されますか?
Answer: C
NEW QUESTION # 122
ある会社は最近、組織内の商談に関する情報のデータ グリッドを持つカスタム コントローラを含む Visualforce ページをリリースしました。
ユーザーは、特定の条件下で「ビュー ステートの最大サイズ制限」エラー メッセージが表示されると報告しています。
Visualforce のベスト プラクティスによると、ビュー ステートを減らすために開発者が実行する必要がある 3 つのアクションはどれですか? 3つの答えを選択してください
Answer: C,D,E
NEW QUESTION # 123
Visualforce ページには業界選択リストが含まれており、業界項目に一致する値を持つ取引先の表が表示されます。
ユーザーが業界選択リストの値を変更すると、アカウントの表が自動的に更新され、選択した業界に関連付けられたアカウントが表示されます。これを実装する最適な方法は何ですか?
Answer: A
Explanation:
The <apex:actionSupport> component is designed to be used with another component to provide AJAX support. When the value of the industry select list changes, the <apex:actionSupport> can trigger an AJAX request to the server, causing the page to rerender the table of Accounts with the matching industry. This process occurs without a full page refresh, providing a smoother user experience.
References:
Visualforce Developer Guide
NEW QUESTION # 124
Aura コンポーネントには、アカウントに関する情報を表示するセクションがあり、デスクトップでは適切に機能しますが、モバイル デバイスやタブレットでは説明フィールドの出力を表示するには水平にスクロールする必要があります。
HTML
<lightning:layout multipleRows="false">
<lightning:layoutItem size="6">{!v.rec.Name}
</lightning:layoutItem>
<lightning:layoutItem size="6">{!v.rec.Description__c}
</lightning:layoutItem>
</lightning:layout>
開発者は、モバイル デバイスやタブレット デバイスに対応するためにコンポーネントをどのように変更すればよいでしょうか?
Answer: A
Explanation:
To create a responsive design in Salesforce Aura components, the lightning:layout and lightning:layoutItem components utilize a 12-column grid system based on the Salesforce Lightning Design System (SLDS). The issue in the original code is that size="6" is hardcoded, which forces each item to occupy 50% of the container width regardless of the screen size. On small mobile screens, 50% width is often insufficient for text content, leading to horizontal scrolling or overlapping.
Option B resolves this by using device-specific size attributes. By setting smallDeviceSize="12", each item is instructed to take up the full width (12 out of 12 columns) on mobile devices. This causes the items to stack vertically instead of sitting side-by-side. The mediumDeviceSize="6" and largeDeviceSize="6" attributes ensure that on tablets and desktop screens, the items return to a side-by-side layout (50% width each).
For this stacking to occur, the parent lightning:layout must have the multipleRows="true" attribute enabled.
This allows the layout to wrap items to a new line once the total column count in a single row exceeds 12.
Without multipleRows="true", the items would try to squeeze into a single line regardless of their individual size settings, which would not solve the horizontal scrolling problem. Option B is the only choice that correctly applies the grid logic to handle multiple breakpoints effectively.
NEW QUESTION # 125
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