PDII勉強時間 & PDII試験関連情報

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Salesforce PDII Exam Syllabus Topics:

SectionWeightObjectives
Data Modeling and Management12%- Data validation and consistency
- SOQL and SOSL optimization
- Large data volume handling
- Complex data modeling
Integration and Web Services15%- External objects and data sources
- API usage and limits
- Data integration patterns
- REST and SOAP integrations
Testing, Debugging and Deployment18%- Deployment strategies and tools
- Debugging and error handling
- Continuous integration and delivery
- Advanced testing techniques
Business Logic and Process Automation25%- Governor limits and performance optimization
- Custom metadata and settings
- Advanced triggers and Apex logic
- Asynchronous processing (Batch, Queueable, Future)
User Interface Development15%- Aura Components advanced usage
- Component communication and reusability
- Lightning Web Components development
- Visualforce advanced features
Advanced Developer Fundamentals15%- Sharing and security model implementation
- System classes and utility methods
- Localization and internationalization
- Advanced Apex coding best practices

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Salesforce Platform Developer II 認定 PDII 試験問題 (Q139-Q144):

質問 # 139
A developer needs to send Account records to an external system for backup purposes. The process must take a snapshot of Accounts as they are saved and then make a callout to a RESTful web service. The web service can only receive, at most, one record per call. Which feature should be used to implement these requirements?

正解：C


質問 # 140
What is the optimal technique a developer should use to programmatically retrieve Global Picklist options in a Test Method?

正解：C

解説：
Explanation/Reference:


質問 # 141
Refer to the component code and requirements below:
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>
Requirements:
* For mobile devices, the information should display in three rows.
* For desktops and tablets, the information should display in a single row.
Requirement 2 is not displaying as desired. Which option has the correct component code to meet the requirements for desktops an7d tablets?

正解：A

解説：
To achieve a responsive layout in Salesforce Aura components, the lightning:layout and lightning:layoutItem components utilize a 12-column grid system. The size attribute defines the default behavior, which targets the smallest devices (mobile). In the original code, size="12" is applied to all three items. Since each item occupies the full 12 columns, they stack vertically in three rows.
To meet Requirement 2 (displaying in a single row for tablets and desktops), the three items must share the
12-column horizontal space. Mathematically, $12 \div 3 = 4$. Therefore, each item must be assigned a size of
4 for larger screen breakpoints.
Option D is the correct implementation. It maintains size="12" for mobile (Requirement 1) and sets mediumDeviceSize (tablets) and largeDeviceSize (desktops) to 4. This ensures that on any screen larger than a phone, the three items will sit side-by-side in a single row.
Option A is incorrect because mediumDeviceSize="6" would only allow two items per row ($6 + 6 = 12$), forcing the third item to a second row. Option C is incomplete as it only specifies the largeDeviceSize, potentially leaving tablets in a stacked configuration. Option D follows the best practice of explicitly defining the span for all relevant device categories to ensure a consistent user experience.


質問 # 142
Which use case can be performed only by using asynchronous Apex?

正解：C

解説：
Asynchronous Apex is a way of executing code in a separate thread from the main execution context. This allows you to perform long-running or resource-intensive operations without blocking the user interface or exceeding the governor limits. Some use cases that can be performed only by using asynchronous Apex are: calling a web service from an Apex trigger, sending email messages, performing complex calculations, and processing large data sets. Querying tens of thousands of records, scheduling a batch process, and updating a record after an insert can be done with synchronous Apex as well, depending on the context and requirements. Reference: [Asynchronous Apex], [Apex Triggers]


質問 # 143
Users report that a button on a custom Lightning web component (LWC) is not saving the data they enter. The button looks to be clicked, but the LWC simply sits there, seemingly doing nothing.
What should the developer use to ensure error messages are properly displayed?

正解：B

解説：
To ensure error messages are properly displayed in a Lightning web component, the developer should use JavaScript to handle errors in the component's client-side code and use HTML to display the message on the UI. This can be combined with Apex exception handling for server-side operations.
References: Lightning Web Components Developer Guide - Error Handling


質問 # 144
......

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