PDI認証試験 & PDI資格トレーニング

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Salesforce PDI Exam Overview:

Certification Vendor:	Salesforce
Exam Name:	Salesforce Platform Developer I Exam
Exam Number:	CRT-450
Exam Duration:	105 minutes
Passing Score:	68%
Real Exam Qty:	60 (multiple-choice / multiple-select)
Related Certifications:	Salesforce JavaScript Developer I Salesforce Platform App Builder
Exam Price:	USD 200
Available Languages:	French, Portuguese, Traditional Chinese, Simplified Chinese, German, English, Japanese, Spanish
Certificate Validity Period:	Requires annual maintenance via Salesforce certification maintenance modules (no fixed expiration if maintained)
Exam Format:	Multiple select, Multiple choice
Recommended Training:	Salesforce Platform Developer I Prep on Trailhead Apex Basics & Database
Exam Registration:	Salesforce Certification Registration Pearson VUE Salesforce Exams
Sample Questions:	Salesforce PDI Sample Questions
Exam Way:	Online proctored exam via Pearson VUE or onsite test center
Pre Condition:	No formal prerequisites required; recommended 6+ months–1 year experience developing on Salesforce Platform.
Official Syllabus URL:	https://trailhead.salesforce.com/credentials/administrator

>> PDI認証試験 <<

素敵試験の準備方法-高品質なPDI認証試験試験-実用的なPDI資格トレーニング

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Salesforce PDI（Platform Developer I）認定は、Salesforceプラットフォームにカスタムアプリケーションを構築する専門知識を実証したい開発者向けの一般的な認定試験です。認定試験は、Apex、VisualForce、Salesforce Lightningコンポーネントフレームワークなどの分野の開発者の知識とスキルをテストするように設計されています。 Salesforce PDI試験に合格することは、開発者がスキルと知識を検証し、Salesforceプラットフォームにカスタムアプリケーションを構築する習熟度を実証するのに最適な方法です。

Salesforce Platform Developer I (PDI) 認定 PDI 試験問題 (Q23-Q28):

質問 # 23
A lead developer creates a virtual class called "OrderRequest". Consider the following code snippet:

How can a developer use the OrderRequest class within the CustomerOrder class?

A. public class CustomerOrder extends OrderRequest
B. Extends (class="OrderRequest"}
public class CustomerOrder
C. @Implements (class="OrderRequest")
public class Customerorder
D. public class CustomerOrder implements Order

正解：A

解説：
In Apex, a class can extend a virtual class (similar to abstract classes in Java) by using the extends keyword.
This allows the subclass (CustomerOrder) to inherit properties and methods from the parent virtual class (OrderRequest).

質問 # 24
Universal Containers has developed custom Apex code and Lightning Components in a Sandbox environment. They need to deploy the code and associated configurations to the Production environment.
What is the recommended process for deploying the code and configurations to Production?

A. Use the Ant Migration Tool to deploy the Apex cade and Lightning Components.
B. Use Salesforce CLI to deploy the Apex code and Lightning Components.
C. Use the Force.com IDE to deploy the Apex code and Lightning Components.
D. Use a change set to deploy the Apex code and Lightning Components.

正解：D

解説：
* Why Change Sets?
* Change Sets are the recommended and simplest way to deploy metadata, including Apex code and Lightning Components, from Sandbox to Production.
* Why Not Other Options?
* A: The Force.com IDE is deprecated.
* B: The Ant Migration Tool is more suitable for complex deployments but not necessary for standard Sandbox-to-Production migration.
* D: Salesforce CLI is effective for deployment but requires scripting expertise, making Change Sets easier for most users.
* Change Sets: https://help.salesforce.com/s/articleView?id=sf.changesets.htm References:

質問 # 25
A developer writes a trigger on the Account object on the before update event that increments a count field. A record triggered flow also increments the count field every time that an Account is created or updated.
What is the value of the count field if an Account is inserted with an initial value of zero, assuming no other automation logic is implemented on the Account?

A. 0
B. 1
C. 2
D. 3

正解：A

解説：
* When an Account record is created, the following happens:
* Before insert triggerincrements the count field once.
* After insert record-triggered flowexecutes and increments the count again.
* When the record is subsequently updated:
* Before update triggerincrements the count again.
* After update record-triggered flowincrements it once more.
Thus, the final value of thecountfield =4.
:
Order of Execution in Salesforce

質問 # 26
What are two considerations for deploying from a sandbox to production?

A. Should deploy during business hours to ensure feedback can be quickly addressed.
B. All triggers must have at least one line of test coverage.
C. Unit tests must have calls to the System.assert method.
D. At least 75% of Apex code must be covered by unit tests.

正解：B、D

解説：
Answers B and C are correct. Salesforce requires Apex deployments to production to satisfy code coverage rules: at least 75% overall Apex code coverage is required, and every trigger included in the deployment must have some test coverage. A trigger with no executed lines fails deployment even if its handler class has high coverage, because Salesforce evaluates trigger coverage independently enough to require direct execution.
Assertions are a strong testing best practice, and well-written tests should use System.assert, System.
assertEquals, or related methods to prove expected behavior. However, assertions are not a platform deployment requirement. Deploying during business hours is an operational decision, not a Salesforce technical rule, and is often a poor release-management choice. Reference focus: Salesforce Apex Developer Guide testing and code coverage deployment requirements. This matters on the Salesforce platform because the same logic can run from the user interface, API operations, imports, and background automation. A production-ready solution must therefore respect security, bulk execution, governor limits, metadata behavior, and the supported runtime model.

質問 # 27
A custom object Trainer_c has a lookup field to another custom object Gym_c. Which SOQL query will get the record for the Viridian City Gym and all its trainers?

A. SELECT Id, (SELECT Id FROM Trainers_r) FROM Gym_c WHERE Name = ' Viridian CityGym '
B. SELECT Id, (SELECT Id FROM Trainers_c) FROM Gym_c WHERE Name = ' Viridian CityGym '
C. SELECT ID FROM Trainer_c WHERE Gym_r.Name = ' Viridian City Gym '
D. SELECT Id, (SELECT Id FROM Trainer_c) FROM Gym_c WHERE Name = ' Viridian CityGym '

正解：A

解説：
Answer B is correct. To query a parent Gym__c record and include all related Trainer__c child records, SOQL uses a parent-to-child subquery. The subquery must use the child relationship name, which for a custom lookup normally ends in __r and is often pluralized or explicitly configured, such as Trainers__r. The source option represents that intended child relationship form. Option D is incorrect because it uses the object API name Trainer__c inside the subquery; parent-to-child subqueries do not use the child object name there.
Option C is a child-to-parent query and would return Trainer records rather than one Gym record containing its trainers. Option A has the same relationship-name problem as option D. The verified SOQL pattern is SELECT Id, (SELECT Id FROM ChildRelationshipName__r) FROM Parent__c WHERE Name = ' ... ' .
Reference focus: SOQL relationship queries in the Salesforce SOQL and SOSL Reference. This matters on the Salesforce platform because the same logic can run from the user interface, API operations, imports, and background automation.

質問 # 28
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