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Exam Code: DEX-450
Exam Name: Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版)
Certification Provider: Salesforce
Corresponding Certification: Salesforce Developer

Prepare with latest Salesforce DEX-450日本語 Pass-King Actual Torrent

DEX-450日本語

Last Updated: Oct 08, 2026

No. of Questions: 202 Questions & Answers with Testing Engine

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Salesforce DEX-450日本語 Practice Q&A's

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DEX-450日本語 Product FAQ's

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Salesforce DEX-450日本語 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Asynchronous Apex10%- Future Methods
  • 1. AsyncRequestLimit exceeded handling
  • 2. @future annotation
- Batch Apex
  • 1. Database.Stateful
  • 2. start(), execute(), and finish() methods
  • 3. Database.Batchable interface
Topic 2: Apex Testing13%- Test Classes
  • 1. Test.startTest() and Test.stopTest()
  • 2. @isTest annotation
  • 3. Test data creation methods
- Testing Best Practices
  • 1. Using seeAllData=false for isolated tests
  • 2. Assert statement usage
  • 3. Coverage requirements (75% for deployment)
Topic 3: Apex Fundamentals10%- Apex Primitives
  • 1. ID and sObject types
  • 2. Integer, Double, Long, String, Boolean types
  • 3. Date, Datetime, Time classes
- Apex Basics
  • 1. Using SOQL to query Salesforce data
  • 2. DML operations (insert, update, delete, etc.)
  • 3. Apex operators and control flow statements
  • 4. Apex variables and data types
Topic 4: Working with Data - SOQL and SOSL15%- SOQL (Salesforce Object Query Language)
  • 1. Basic SOQL queries
  • 2. Query options (LIMIT, ORDER BY, WHERE)
  • 3. Aggregate functions (COUNT, SUM, AVG, MIN, MAX)
  • 4. Relationship queries (parent-child, child-parent)
- SOSL (Salesforce Object Search Language)
  • 1. SOSL syntax and use cases
  • 2. Returning sObjects from SOSL
Topic 5: Apex Triggers12%- Trigger Best Practices
  • 1. One trigger per object pattern
  • 2. Handler class patterns
  • 3. Recursive trigger prevention
- Trigger Syntax and Context Variables
  • 1. Trigger events (before insert, after insert, etc.)
  • 2. Trigger.old and Trigger.new context variables
  • 3. Trigger.newMap and Trigger.oldMap
Topic 6: Apex Classes and Interfaces12%- Apex Classes
  • 1. Inheritance and virtual/abstract classes
  • 2. Class structure (attributes, methods, constructors)
  • 3. Access modifiers (public, private, protected, global)
- Apex Interfaces
  • 1. Interface definition and implementation
  • 2. When to use interfaces
Topic 7: Apex Transaction Management10%- Governor Limits
  • 1. DML statement limits
  • 2. CPU time and heap size limits
  • 3. SOQL query limits
- Transaction Control
  • 1. System.debug() usage
  • 2. Savepoint and rollback
  • 3. Database methods with allOrNone parameter
Topic 8: Visualforce Pages8%- VF Page Basics
  • 1. component structure
  • 2. Visualforce expressions
  • 3. Controllers and controller extensions
- VF Standard Components
  • 1. ,
  • 2. , ,
  • 3. Action methods and pageReference

DEX-450日本語 Exam Facts, Early Starts and Safety Nets

What happens if I order the wrong exam code?

Do not worry — it happens more often than you might think, and ActualTorrent will exchange the product for the correct exam one time at no charge. To avoid the mix-up entirely, double-check the code on your registration confirmation before paying, and use the free demo to confirm the Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版) material matches the exam you actually booked. Either way, support sorts it out quickly.

What is the structure of the real DEX-450日本語 exam?

About 60 questions in 120 minutes minutes. The ActualTorrent software version recreates that scene for unlimited rehearsal, and 202 practice questions for the DEX-450日本語 exam give you plenty of material to run through it.

Which DEX-450日本語 domains should get the most attention?

The official Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版) outline weights its topics like this:
  • Apex Transaction Management (10%)
  • Apex Fundamentals (10%)
  • Apex Triggers (12%)
Spend the bulk of your hours where the points are, and test each domain with the ActualTorrent bank as you finish it.

Why do experienced candidates start preparing early?

Because time is the one resource you cannot buy back. An early start lets the DEX-450日本語 material breathe: a first pass through the Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版) bank to map the territory, timed simulations to build pace, and a calm final review instead of a desperate cram. It also means every update released during your preparation reaches you automatically, so you always study the latest version. Earlier really is easier.

Does DEX-450日本語 have any prerequisites?

No formal prerequisites, but recommended: 1-2 years Apex development experience, completion of Salesforce Developer Beginner and Intermediate Trailhead modules

What score passes DEX-450日本語, and what does registration cost?

The passing mark is 68% and the exam fee is $200 USD. Since retakes charge that fee again, thorough preparation with verified ActualTorrent material is money well spent.

Why do organized candidates choose ActualTorrent for DEX-450日本語?

Because the safety nets are real: 202 practice questions for the DEX-450日本語 exam with verified answers, a free demo before you pay, a one-time exchange if you pick the wrong exam code, updates sent to you the moment they release for 365 days, support that answers within about three hours even on official holidays, and a conditional refund policy behind it all. Preparation stays calm when the logistics take care of themselves.

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

Question #1

変更セット展開の 3 つの特徴は何ですか?
3 つの回答を選択してください。2 つの組織間で変更セットを送信するには、デプロイメント接続が必要です。

  • A. 変更セットはカスタム設定データを展開できます。
  • B. 変更セットを使用してレコードを転送できます。
  • C. デプロイメントは一方向の単一トランザクションで実行されます。
  • D. 変更セットは関連する組織間でのみ使用できます。
  • E. 2 つの組織間で変更セットを送信するには、デプロイメント接続が必要です。
Reveal Solution  Discussion  0

Correct Answer: C,D,E  🗳️

Explanation: Only visible for ActualTorrent members. You can sign-up / login (it's free).

Question #2

Aura コンポーネントとアプリケーション イベントの処理に関するベスト プラクティスはどれですか?
2つの回答を選択してください

  • A. イベント ハンドラーで低レベルのイベントを処理し、高レベルのイベントとして再起動します。
  • B. ロジックをヘルパーに配置することで、コンポーネント バンドル内のイベント ロジックを再利用します。
  • C. コンポーネント イベントを使用して、アプリケーション レベルで処理する必要があるアクションを伝達します。
  • D. コンポーネント イベントではなく、アプリケーション イベントを使用するようにしてください。
Reveal Solution  Discussion  0

Correct Answer: A,B  🗳️

Question #3

次の匿名ブロックがあるとします。

10,000 件を超えるケース レコードがある環境では、開発者は何を考慮すべきでしょうか?

10,000 件を超えるケース レコードがある環境では、開発者は何を考慮すべきでしょうか?

  • A. try-catch ブロックは、ガバナー制限によってスローされた例外を処理します。
  • B. try-catchブロックはスローされたDML例外を処理します。
  • C. ガバナー制限を超えたため、トランザクションは失敗します。
  • D. トランザクションは成功し、変更がコミットされます。
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Question #4

トリガーが起動できる回数に影響を与える 2 つの操作はどれですか。
2つの回答を選択してください

  • A. 保存後のレコードトリガーフロー
  • B. メールメッセージ
  • C. 基準に基づく共有計算
  • D. ロールアップサマリーフィールド
Reveal Solution  Discussion  0

Correct Answer: A,D  🗳️

Question #5

Lightning Web コンポーネントからアクセスできる Salesforce リソースは 3 つあります。
3つの回答を選択してください

  • A. SVGリソース
  • B. コンテンツアセットファイル
  • C. 静的リソース
  • D. すべての外部ライブラリ
  • E. サードパーティのWebコンポーネント
Reveal Solution  Discussion  0

Correct Answer: A,B,C  🗳️

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