Salesforce DEX-450日本語 Actual PDF : Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版)

Salesforce DEX-450日本語 Actual PDF
  • Exam Code: DEX-450J
  • Exam Name: Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版)
  • Updated: Sep 25, 2026
  • Q & A: 202 Questions and Answers
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About Salesforce DEX-450日本語 Actual Exam

Version currency is printed right on the product: ActualPDF staff check the Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版) collection daily, and your 2026 purchase includes 365 days of free updates to the DEX-450日本語 practice questions.

Salesforce DEX-450日本語 Exam Overview:

Certification Vendor:Salesforce
Exam Name:Programmatic Development using Apex and Visualforce in Lightning Experience
Exam Number:DEX-450
Related Certifications:Salesforce Platform Developer II
Salesforce Platform Developer I
Exam Format:Multiple choice questions (typical Salesforce training exams), Course assessment (format varies by provider)
Available Languages:English
Recommended Training:Salesforce Visualforce Developer Guide
Salesforce Apex Developer Guide
Exam Registration:Salesforce Trailhead Training
Sample Questions:Free Download Pass DEX-450日本語 Exam Cram
Exam Way:Instructor-led training assessment or course completion exam (varies by training provider)
Pre Condition:Basic understanding of object-oriented programming and database concepts is recommended. Prior Salesforce experience is helpful but not strictly required.
Official Syllabus URL:https://trailhead.salesforce.com

Salesforce DEX-450日本語 Exam Syllabus Topics:

SectionObjectives
Testing and Debugging- Apex testing framework
  • 1. Test classes and methods
    • 2. Code coverage requirements
      - Debugging techniques
      • 1. System debug logs
        Visualforce Development- UI components
        • 1. Visualforce components and expressions
          - Pages and controllers
          • 1. Standard controllers
            • 2. Custom controllers and extensions
              Apex Programming Fundamentals- Apex syntax and object-oriented concepts
              • 1. Access modifiers and encapsulation
                • 2. Classes, methods, and variables
                  - Collections and data handling
                  • 1. Lists, Sets, and Maps
                    • 2. Iteration and data manipulation
                      Apex Triggers and Automation- Order of execution
                      • 1. Salesforce transaction lifecycle
                        - Trigger design patterns
                        • 1. Before and after triggers
                          • 2. Bulkified trigger design
                            Database and SOQL/SOSL- SOQL queries
                            • 1. Relationship queries
                              • 2. Basic and advanced query filtering
                                - DML operations
                                • 1. Insert, update, delete, upsert
                                  • 2. Bulk operations and limits
                                    Security and Best Practices- Security model
                                    • 1. CRUD and FLS enforcement
                                      • 2. Sharing rules and with sharing keyword
                                        - Governor limits
                                        • 1. Avoiding limit exceptions

                                          Questions and Answers About Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版)

                                          Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版) is an official Salesforce exam, listed under exam code DEX-450日本語. A passing result earns you the Salesforce Programmatic Development using Apex and Visualforce (Training Course) certification. It also ties into Salesforce Platform Developer I, Salesforce Platform Developer II, extending its value across your certification roadmap. Employers read this credential as verified competence, which is why it keeps appearing in job requirements.

                                          Basic understanding of object-oriented programming and database concepts is recommended. Prior Salesforce experience is helpful but not strictly required.

                                          Requirements evolve, so confirm the current conditions before registering on the official exam page.

                                          Registration for Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版) goes through the official channels listed here.

                                          When you schedule, note that the exam is delivered Instructor-led training assessment or course completion exam (varies by training provider).

                                          Salesforce recommends the following training for Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版) candidates.

                                          Follow any course with the 202 practice questions in the ActualPDF DEX-450日本語 package; the software engine will even remind you which mistakes need another round.

                                          Yes. ActualPDF provides a free download demo of the Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版) material, so you can check the content before choosing a version. After purchase, a one-year warranty covers you: the latest version is sent to you as it releases, free for 365 days, and after expiry you can extend the update service at a 50% discount.

                                          Your purchase is covered by a 100% money-back guarantee with clear conditions. Take the Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版) exam within 60 days of purchase; if you fail, provide your unqualified result by submitting a scanned enrollment slip and the official Score Report PDF within 2 days of the exam, and the full refund is processed within 7 days. The exam must match your product, candidate and payer names must match, and attempts within 3 days of purchase, unused downloads, free materials, and expired orders are not covered. Alternatively, exchange for two other exam products of equal value, free, or wait for updates while keeping your original product's update service.

                                          Delivery is instant: files unlock for download at payment and are emailed within one minute. If nothing arrives within 2 hours, check spam and contact customer service, which works 7/24 and normally replies within two hours. Installation is unlimited across your computers.

                                          The Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版) syllabus spans 6 domains, led by Testing and Debugging, Security and Best Practices, and Visualforce Development. The complete topic list is published above; candidates who study the map first rarely get lost later.

                                          Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版) Sample Questions:

                                          Question #1

                                          開発者は Salesforce プラットフォーム上で新しいアプリケーションを設計しており、複数のテナントを効果的にサポートできることを確認したいと考えています。
                                          スケーラビリティと保守性を確保するために、開発者はどの設計フレームワークを考慮する必要がありますか?

                                          • A. アジャイル開発
                                          • B. Flux (ビュー、アクション、ディスパッチャ、ストア)
                                          • C. ウォーターフォールモデル
                                          • D. モデル・ビュー・コントローラ (MVC)
                                          Reveal Solution  Discussion  0

                                          Correct Answer: A  🗳️

                                          Question #2

                                          数式に関連する 2 つの特性は何ですか?
                                          2つの回答を選択してください

                                          • A. 数式は関連オブジェクトの値を参照できます。
                                          • B. 数式フィールドで使用されるフィールドは、数式を編集せずに削除または編集できます。
                                          • C. 数式は自分自身を参照できます。
                                          • D. 数式は実行時に計算され、データベースには保存されません。
                                          Reveal Solution  Discussion  0

                                          Correct Answer: A,D  🗳️

                                          Question #3

                                          Universal Containers は、サンドボックス環境でカスタム Apex コードと Lightning コンポーネントを開発しました。コードと関連する構成を本番環境に展開する必要があります。
                                          コードと構成を本番環境にデプロイするための推奨プロセスは何ですか?

                                          • A. Salesforce CLI を使用して、Apex コードと Lightning コンポーネントをデプロイします。
                                          • B. Force.com IDE を使用して、Apex コードと Lightning コンポーネントをデプロイします。
                                          • C. 変更セットを使用して、Apex コードと Lightning コンポーネントをデプロイします。
                                          • D. Ant 移行ツールを使用して、Apex cade と Lightning コンポーネントをデプロイします。
                                          Reveal Solution  Discussion  0

                                          Correct Answer: A  🗳️

                                          Question #4

                                          開発者は、Apex クラスを作成する際に、開発中のすべての機能が要件で指定されたとおりに処理されることを確認したいと考えています。
                                          Apex クラスが仕様どおりに動作していることを確認するには、開発者はどのアプローチを使用する必要がありますか?

                                          • A. Apex クラスに try/catch ブロックを含めます。
                                          • B. 開発者コンソールの Execute Anonymous ブロックでコードを実行します。
                                          • C. ビジネス ロジックを実行するテスト クラスを作成し、開発者コンソールでテストを実行します。
                                          • D. セーブポイントと pacabase.rollback() を含めます。
                                          Reveal Solution  Discussion  0

                                          Correct Answer: D  🗳️

                                          Question #5

                                          開発者は、組織のデータを変更せずに連絡先トリガーが正しく機能することを確認する必要があります。
                                          連絡先トリガーをテストするには、開発者は何をする必要がありますか?

                                          • A. VSCode IDE のデプロイを使用して、「連絡先の挿入」Apex クラスをデプロイします。
                                          • B. Salesforce の [連絡先] タブの [新規] ボタンを使用して、新しい連絡先レコードを作成します。
                                          • C. 開発者コンソールの Open Execute Anonymous 機能を使用して、「連絡先を挿入」DML ステートメントを実行します。
                                          • D. 開発者コンソールのテスト メニューを使用して、連絡先トリガーのテスト クラスを実行します。
                                          Reveal Solution  Discussion  0

                                          Correct Answer: D  🗳️

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