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| Section | Weight | Objectives |
|---|---|---|
| User Interface | 20% | - Describe the process for creating Lightning Web Components. - Describe the use cases for the different Aura component bundle files. - Describe the use cases for component events and application events. - Describe the nuances of event propagation in Aura and Lightning Web Components. - Describe the nuances of the component communication patterns. - Describe the use cases for the Lightning Data Service. - Describe the process for creating Aura components. - Given a scenario, identify the correct communication mechanism. - Describe the use cases for the different Lightning Web Component lifecycle hooks. |
| Advanced Developer Fundamentals | 15% | - 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. - Identify the best practices for writing Apex triggers. - Describe the capabilities of the Schema.describeTabs() method. - Describe the nuances of Apex sharing rules and the difference between declarative and programmatic sharing. - Given a scenario, identify the use of custom metadata and custom settings. - Describe the use cases for the System.Limits Apex methods. - Use the sObject describe result and field describe result to get information about sObjects and fields. |
| Testing, Debugging, and Deployment | 20% | - Describe the process for deploying Salesforce applications. - Describe the process for debugging Apex. - Given a scenario, identify the appropriate test setup logic. - Describe the nuances of testing Apex triggers. - Describe the best practices for testing Apex. - Describe the process for debugging Aura and Lightning Web Components. - Describe the nuances of testing Visualforce controllers. - Describe the nuances of testing Lightning Web Components. - Describe the nuances of testing Aura components. |
| Process Automation, Logic, and Integration | 27% | - Given a scenario, identify the appropriate asynchronous Apex feature. - 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 Callable interface. - Describe the use cases for the publish-subscribe pattern. - Describe the use cases for the Batchable interface. - Describe the use cases for and nuances of Apex managed sharing. - Describe the nuances of SOQL for loops. - Describe the use cases for the Queueable interface. - Describe the use cases for the ConnectApi classes. - Describe the use cases for the Schedulable interface. |
| Performance | 18% | - Describe the considerations for query performance. - Describe the performance implications of the different trigger types. - Describe the performance implications of the different asynchronous Apex features. - Describe the common performance issues for user interfaces and the techniques to mitigate them. |
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NEW QUESTION # 122
ユニバーサル コンテナは、複数の外部システムと統合する必要があります。このプロセスは、Salesforce でレコードが作成されるときに開始されます。リモートシステムでは、続行する前に Salesforce が応答を待つ必要はありません。
これを達成するために推奨される最適なソリューションは何ですか?
Answer: D
Explanation:
Platform events provide a robust and scalable way to communicate changes and events from Salesforce to external systems, especially when there is no requirement for Salesforce to wait for a response. They are designed to support event-driven architectures and can handle high volumes of events that can be published and consumed by external systems. Outbound messages, on the other hand, are limited by the need for an acknowledgment response from the target system, which can introduce latency.
NEW QUESTION # 123
開発者が開発者サンドボックスでVisualforceページを作成し、テストしたところ、本番環境で使用すると「View State」エラーが発生するという報告を受けました。これらのエラーを修正するには、開発者は何を確認すればよいでしょうか？
Answer: D
Explanation:
The Visualforce View State is a hidden form field that maintains the state of the page (including controller variables) between server requests. 9Salesforce imposes a strict 135KB limit on the View State. When a page handles large amounts of 10data-such as large lists of records or complex objects-the serialized size of the controller variables can easily exceed this limit, resulting in a runtime error for the user.
To correct these errors, the developer should use the transient keyword (Option C). Marking a variable as transient prevents it from being serialized into the View State. This is the standard best practice for any data that does not need to be maintained across "postbacks" (actions that refresh the page or part of the page).
Common candidates for the transient keyword include:
* Large lists of records retrieved for display only.
* Temporary variables used for calculations during a single request.
* Summary data that can be easily re-queried if needed.
Option A relates to security, not performance. Option B (private variables) does not exclude variables from the View State; only static and transient variables are excluded. Option D relates to SOQL governor limits, which are independent of the View State size. By judiciously using transient, the developer keeps the page weight low and ensures a smooth user experience in production environments with real-world data volumes.
NEW QUESTION # 124
開発者は、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る予定です。一部のロケールでは、週の最初の日が月曜日、土曜日、または日曜日になります。「すべてのロケールのユーザーに対してカレンダーが正確に表示されるようにするには、開発者は何をすべきでしょうか?」
Answer: A
Explanation:
Use the @salesforce/i18n module with the firstDayOfWeek property. It provides locale-aware functionality essential for internationalization.
References: Internationalization with Lightning Web Components
NEW QUESTION # 125
開発者は、次のように、Queueable Interface を実装する 2 つのクラスを作成しました。
展開プロセスの一環として、開発者は対応するテスト クラスを作成するように求められます。
テスト クラスを正常に実行するには、開発者が実行する必要がある 2 つのアクションのうちどれですか?
2 つの答えを選択してください
Answer: B,C
Explanation:
To successfully execute the test class for the Queueable classes, the developer should do the following:
Ensure the running user of the test class has the View All permission on the Order object. This is because the OrderQueueableJob class queries the Order object and updates its status. Without the View All permission, the test class may fail due to insufficient access rights or data visibility issues.
Enclose System.enqueueJob(new OrderQueueableJob()) within Test.startTest() and Test.stopTest(). This is because the Queueable jobs are executed asynchronously, and the Test.stopTest() method ensures that all asynchronous processes are completed before the test method finishes. This way, the test class can verify the results of the Queueable job execution.
NEW QUESTION # 126
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、ユーザーはモバイルデバイスやタブレットで説明フィールドの出力を確認するには水平にスクロールする必要があります。
開発者は、モバイルおよびタブレットデバイスに応答できるようにコンポーネントをどのように変更する必要がありますか?
Answer: B
Explanation:
Option A is the correct way to change the component to be responsive for mobile and tablet devices. Option A uses the lightning:layout and lightning:layoutItem components to create a responsive layout that can adapt to different screen sizes and devices. The lightning:layout component defines a layout that can have multiple rows and columns, and the lightning:layoutItem component defines an item that can span different sizes based on the device. By using the smallDeviceSize and largeDeviceSize attributes, the developer can specify how many columns the item should occupy on a small or large device. For example, the developer can use the following code to create a responsive layout that displays the name and description fields on the same row on a large device, and on separate rows on a small device:
<lightning:layout multipleRows="true"> <lightning:layoutItem smallDeviceSize="12" largeDeviceSize="6">{!v.rec.Name}</lightning:layoutItem> <lightning:layoutItem smallDeviceSize="12" largeDeviceSize="6">{!v.rec.Description}</lightning:layoutItem> </lightning:layout>
NEW QUESTION # 127
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