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Salesforce PDI Exam Syllabus Topics:

Section	Weight	Objectives
Logic and Process Automation	40%	- Apex classes, triggers, and methods - Governor limits and best practices - Process Builder, Flow, and approval processes - Asynchronous Apex: batch, queueable, future, scheduled - Platform events and publish-subscribe model
Salesforce Fundamentals	7%	- Declarative development capabilities - Security model, profiles, permission sets and sharing - Multi-tenant architecture and platform limits
User Interface	23%	- Component communication and events - Integration with Lightning App Builder and Experience Cloud - Visualforce pages, controllers and extensions - Lightning Web Components (LWC) architecture and development - UI security and accessibility
Data Modeling and Management	13%	- Object relationships, fields, and schema design - Data operations, import/export and data management - SOQL and SOSL query construction and optimization
Testing, Debugging and Deployment	17%	- Unit test creation, code coverage requirements - Debugging tools: Developer Console, logs, checkpoints - Deployment tools: Salesforce DX, CLI, change sets - Development environments and sandboxes

>> PDI模擬試験問題集 <<

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Salesforce Platform Developer I (PDI) 認定 PDI 試験問題 (Q151-Q156):

質問 # 151
A developer is designing a new application on the Salesforce platform and wants to ensure it can support multiple tenants effectively.
Which design framework should the developer consider to ensure scalability and maintainability?

A. Model-View-Controller (MVC)
B. Waterfall Model
C. Agile Development
D. Flux (view, action, dispatcher, and store)

正解：A

解説：
* MVC: The Model-View-Controller design pattern is ideal for Salesforce development as it separates the business logic (model), user interface (view), and controller logic, ensuring scalability and maintainability.
* Salesforce's architecture inherently supports MVC, with sObjects as the model, Visualforce or Lightning components as the view, and Apex controllers as the controller.
Why not other options?
* A: The Waterfall model is a development methodology, not a design framework.
* B: Flux is a front-end application architecture and not relevant to Salesforce.
* D: Agile is a development methodology, not a design framework.
References:
* Salesforce MVC Architecture

質問 # 152
What is a benefit of developing applications

A. Enforced unit testing and code coverage best practices
B. Unlimited processing power and memory
C. Preconfigured storage for big data
D. Access to predefined computing resources

正解：D

質問 # 153
A developer working on a time management application wants to make total hours for each timecard available to applications users. A timecard entry has a Master-Detail relationship to a timecard. Which approach should the developer use to accomplish this declaratively?

A. A Roll-up Summary field on the Timecard Object that calculates the total hours from timecard entries for that timecard.
B. A visualforce page that calculates the total number of hours for a timecard and displays it on the page.
C. A Process Builder process that updates a field on the timecard entry is created.
D. An Apex trigger that uses an Aggregate Query to calculate the hours for a given timecard and stores it in a custom field.

正解：A

質問 # 154
Which two statements are true regarding formula fields? Choose 2 answers

A. When concatenating fields, line breaks can be added to improve readability.
B. Formula fields may reference formula field on the same object to a level of one deep.
C. Fields that are referenced by formula field can not be deleted until the formula is modified or deleted.
D. When using the & operator to concatenate strings, the result is automatically truncated to fit the destination.

正解：B、C

質問 # 155
What are two benefits of using declarative customizations over code?

A. Declarative customizations automatically update with each Salesforce release.
B. Declarative customizations cannot generate runtime errors.
C. Declarative customizations generally require less maintenance.
D. Declarative customizations automatically generate test classes.

正解：A、C

解説：
Answers B, C are correct. The Salesforce Platform favors metadata-driven design where possible and Apex or custom UI when requirements exceed declarative capability. Correct design means selecting the lowest- maintenance platform feature that satisfies security, data integrity, scalability, and user experience requirements while remaining compatible with Salesforce's multi-tenant runtime model. The other options either use the wrong platform feature, apply at the wrong layer, or ignore a key Salesforce constraint. For Platform Developer I, the important point is not just syntax; it is choosing the feature that aligns with transaction behavior, security enforcement, maintainability, and supported metadata capabilities. Reference focus: Salesforce Apex Developer Guide, Salesforce CLI Developer Guide, Tooling API documentation, and Salesforce Help deployment guidance. This distinction is important in production orgs because small design mistakes can create deployment failures, runtime exceptions, data-quality defects, or user-visible security gaps once automation is executed in bulk or from multiple entry points. This matters on the Salesforce platform because the same logic can run from the user interface, API operations, imports, and background automation.

質問 # 156
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