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

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  • Exam Code: DEX-450J
  • Exam Name: Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版)
  • Updated: Nov 04, 2026
  • Q & A: 202 Questions and Answers
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About Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版) : DEX-450日本語 exam dumps

In 2026, textbooks still explain everything except what the exam actually asks. VerifiedDumps's DEX-450日本語 practice questions flip the order — start from real Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版) question patterns, and absorb the theory by correcting what you miss.

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
Available Languages:English
Exam Format:Multiple choice questions (typical Salesforce training exams), Course assessment (format varies by provider)
Related Certifications:Salesforce Platform Developer II
Salesforce Platform Developer I
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
Database and SOQL/SOSL- SOQL queries
  • 1. Basic and advanced query filtering
    • 2. Relationship queries
      - DML operations
      • 1. Bulk operations and limits
        • 2. Insert, update, delete, upsert
          Apex Programming Fundamentals- Collections and data handling
          • 1. Iteration and data manipulation
            • 2. Lists, Sets, and Maps
              - Apex syntax and object-oriented concepts
              • 1. Classes, methods, and variables
                • 2. Access modifiers and encapsulation
                  Testing and Debugging- Debugging techniques
                  • 1. System debug logs
                    - Apex testing framework
                    • 1. Code coverage requirements
                      • 2. Test classes and methods
                        Apex Triggers and Automation- Order of execution
                        • 1. Salesforce transaction lifecycle
                          - Trigger design patterns
                          • 1. Bulkified trigger design
                            • 2. Before and after triggers
                              Security and Best Practices- Security model
                              • 1. Sharing rules and with sharing keyword
                                • 2. CRUD and FLS enforcement
                                  - Governor limits
                                  • 1. Avoiding limit exceptions
                                    Visualforce Development- Pages and controllers
                                    • 1. Standard controllers
                                      • 2. Custom controllers and extensions
                                        - UI components
                                        • 1. Visualforce components and expressions

                                          The Salesforce DEX-450日本語 Exam FAQ — No Fluff, Just Answers

                                          In plain terms, the DEX-450日本語 exam is Salesforce's way of verifying that you deserve the Salesforce Programmatic Development using Apex and Visualforce (Training Course) certification. It tests the Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版) objectives through applied, scenario-driven questions — the kind that expose the gap between "read about it" and "can do it." It also sits within a broader certification ecosystem that includes Salesforce Platform Developer I, Salesforce Platform Developer II, so the effort compounds across your career. That's why a review system built around realistic questions — practice, error correction, self-improvement — beats textbook re-reading every time.

                                          The Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版) exam blueprint spans 6 domains, led by Apex Triggers and Automation, Apex Programming Fundamentals, and Database and SOQL/SOSL. Treat the weightings as your study budget: domains carrying more of the score deserve more of your week. The full topic list is in the exam topics section above — plan against it, not against guesswork.

                                          Salesforce lists the Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版) formats as: Course assessment (format varies by provider), Multiple choice questions (typical Salesforce training exams). Formats aren't trivia — they change how you should read. For long scenario stems, locate the actual question sentence first; for multi-answer items, verify every option you select. VerifiedDumps's 202 practice questions cover these formats so thoroughly that on exam day, only the content is new.

                                          You can take the DEX-450日本語 exam in English. Choose the language where your comprehension is fastest under time pressure — in a timed exam, slow reading is a hidden tax on every question. Testing in English? Daily work with VerifiedDumps's English DEX-450日本語 practice questions doubles as targeted vocabulary training.

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                                          • Online Test Engine — runs in any browser on Windows, Mac, Android, and iOS, with test history and performance review built in.

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                                          • PDF version: printable format, prepared by experts, instant access to download, study anywhere and anytime, 365 days of free updates, free PDF demo available.
                                          • Desktop Test Engine: installable software simulating the real Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版) exam environment, two practice modes, offline access, supports MS Windows, unlimited installations.
                                          • Online Test Engine: instant online access from all web browsers, test history and performance review, supports Windows, Mac, Android, and iOS.
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                                          Stop wrestling the textbook and start training for the exam: download the free DEX-450日本語 demo, and let VerifiedDumps's 202 practice questions turn your Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版) preparation into a system that works.

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

                                          Question #1

                                          匿名 Apex コードを実行する 2 つのユースケースは何ですか?
                                          2つの回答を選択してください

                                          • A. 組織にユニットテストコードカバレッジを追加する
                                          • B. Apex クラスを定期的に実行するようにスケジュールする
                                          • C. すべての連絡先を更新するバッチApexクラスを実行する
                                          • D. デプロイメント後に1回のトランザクションで15,000の非アクティブなアカウントを削除する
                                          Reveal Solution  Discussion  0

                                          Correct Answer: B,C  🗳️

                                          Question #2

                                          コードではなく宣言型カスタマイズを使用する 2 つの利点は何ですか?
                                          2つの回答を選択してください

                                          • A. 宣言的なカスタマイズにより、テスト クラスが自動的に生成されます。
                                          • B. 宣言的なカスタマイズは一般的にメンテナンスが少なくて済む
                                          • C. 宣言的なカスタマイズは、Salesforce リリースごとに自動的に更新されます。
                                          • D. 宣言的なカスタマイズでは実行時エラーは発生しません
                                          Reveal Solution  Discussion  0

                                          Correct Answer: B,C  🗳️

                                          Question #3

                                          開発者は、各アカウントの LastModified 値が過去 90 日を超えていることに基づいて、List<Account> 内の各アカウントをアクティブまたは非アクティブとしてマークしたいと考えています。
                                          開発者はどの Apex テクニックを使用すべきでしょうか?

                                          • A. 内部にifまたはif/else文を含むforループ
                                          • B. 内部に for ループを含む witch 文
                                          • C. 内部にswitch文を含むforループ
                                          • D. if-else文、内部にforループあり
                                          Reveal Solution  Discussion  0

                                          Correct Answer: A  🗳️

                                          Question #4

                                          Flow Builder は Apex アクションを使用して、カスタム クラス ContactInfo に保存されている複数の連絡先に関する追加情報を提供します。追加情報を取得する Apex メソッドの正しい定義はどれですか。
                                          A)

                                          B)

                                          C)

                                          ダ)

                                          • A. オプションA
                                          • B. オプションC
                                          • C. オプションD
                                          • D. オプションB
                                          Reveal Solution  Discussion  0

                                          Correct Answer: B  🗳️

                                          Question #5

                                          Universal Containers は最近、Classic から Lightning Experience に移行しました。
                                          ビジネス プロセスの 1 つでは、ユーザーが商談の詳細ページでカスタム ボタンを押したときに、商談オブジェクトからの特定の値が HTTP REST コールアウトを介して外部の注文管理システムに送信されることが必要です。値の例は次のとおりです。
                                          * 名前
                                          *額
                                          * アカウント
                                          ビジネス要件を満たすために開発者が実装する必要がある 2 つの方法はどれですか?
                                          2つの回答を選択してください

                                          • A. Opportunity オブジェクトにリモートアクションを作成し、Opportunity が更新されるたびに HTTP REST コールアウトを実行する Apex 即時アクションを実行します。
                                          • B. HTTP REST コールアウトを実行する Lightning コンポーネントのクイックアクションを作成し、Lightning アクションを使用して商談の詳細ページでコンポーネントを公開します。
                                          • C. Opportunity オブジェクトに、@future (Callout=true) を使用してヘルパー メソッドを呼び出して HTTP REST コールアウトを実行する更新後トリガーを作成します。
                                          • D. HTTP REST コールアウトを実行するカスタム Visualforce クイックアクションを作成し、Visualforce クイックアクションを使用して商談の詳細ページでコンポーネントを公開します。
                                          Reveal Solution  Discussion  0

                                          Correct Answer: B,D  🗳️

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