Last Updated: Oct 29, 2026
No. of Questions: 202 Questions & Answers with Testing Engine
Download Limit: Unlimited
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Some candidates buy study materials hoping for a shortcut; experienced ones look for materials that respect their time. The Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版) package at Actual4Cert is built for the second group: 202 practice questions aligned with the real DEX-450日本語 exam format, verified answers, and a free demo to check the fit first.
| Certification Vendor: | Salesforce |
|---|---|
| Exam Name: | Programmatic Development using Apex and Visualforce in Lightning Experience |
| Exam Number: | DEX-450 |
| Certificate Validity Period: | 3 years |
| Related Certifications: | Salesforce Platform Developer II |
| Exam Format: | Multiple Choice, Scenario-based, Multiple Select |
| Passing Score: | 65%–80% |
| Real Exam Qty: | 60–85 |
| Exam Duration: | 105–120 |
| Available Languages: | English |
| Exam Price: | $200 USD |
| Recommended Training: | Build Applications Programmatically on the Salesforce Platform (DEX450) |
| Exam Registration: | Salesforce Certification Portal |
| Sample Questions: | DOWNLOAD DEMO |
| Exam Way: | Online proctored or onsite testing center |
| Pre Condition: | Understanding of declarative development; experience with object-oriented programming; completion of recommended training or equivalent knowledge |
| Official Syllabus URL: | https://trailhead.salesforce.com/en/credentials/platform-developer-i |
| Section | Weight | Objectives |
|---|---|---|
| Data Modeling and Management | 20% | - Custom objects, fields, and relationships
|
| Apex Classes, Triggers, and Execution | 20% | - Class structure, methods, and access modifiers
|
| Visualforce Development | 15% | - Page creation and standard controllers
|
| Data Retrieval and Manipulation | 20% | - SOQL and SOSL queries
|
| Apex Programming Fundamentals | 25% | - Apex syntax, data types, and control structures
|
The DEX-450日本語 exam is the required test for earning the Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版) certification from Salesforce. It assesses your command of the official exam objectives through scenario-based and knowledge questions, and the resulting credential is widely recognized by employers. Its reputation for difficulty is real but manageable — candidates who practice consistently with quality materials routinely walk in well prepared.
The official outline for the DEX-450日本語 exam highlights these domains:
Seeing the topics laid out this way often shrinks the exam's intimidation factor — each domain is a finite, learnable block, and the Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版) practice questions at Actual4Cert follow the same structure.
Understanding of declarative development; experience with object-oriented programming; completion of recommended training or equivalent knowledge
The DEX-450日本語 exam is demanding, but its difficulty is specific, not mysterious: unfamiliar question formats, time pressure, and a few heavily weighted domains. All three respond to the same remedy — repeated, timed exposure to exam-style questions. That is what the Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版) practice materials at Actual4Cert provide, and the free demo lets you measure the real difficulty yourself before committing, which is usually the moment the fear starts shrinking.
The DEX-450日本語 exam consists of 60–85 questions with a time allowance of 105–120 minutes. Practicing full sets under a similar time cap is the most direct way to make sure pacing never costs you points on exam day.
Salesforce offers these training resources for candidates:
Official courses explain the material; practice questions teach you how the exam asks about it. Most successful candidates use both.
Because seeing beats guessing. The free demo of the DEX-450日本語 exam materials at Actual4Cert contains genuine samples from the full Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版) question set — same format, same expert-verified answers — and downloading it costs nothing. If you are unsure whether the materials match your level or your study style, the demo answers that question with evidence rather than marketing, and every demo on the site is free of charge.
The passing score is 65%–80% and the exam fee is $200 USD. Knowing both numbers early helps you plan: aim to be consistently above the passing mark in timed practice sessions before you spend the fee on a booking.
Registration is available through the following official channels:
Many candidates find that booking a date early converts vague anxiety into a focused countdown — a useful psychological trick while working through the Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版) practice questions.
開発者は、ユーザーが取引先責任者レコード情報を入力して、給与 c カスタム フィールドを含む取引先責任者レコードを作成できるようにする Lightning コンポーネントを作成する必要があります。
Salary__c フィールドが通貨入力として機能し、Salary _c に対して適切なフィールド レベルの権限を持つユーザーのみが表示および編集できるようにするには、開発者は lightning-record-edit-form とともに何を使用すればよいでしょうか。




Correct Answer: D 🗳️
リード開発者が Laptop という Apex インターフェースを作成します。次のコード スニペットを検討してください。
パブリッククラス SilverLaptop{
//コード実装
開発者は silverLaptop クラス内で Laptop インターフェイスをどのように使用できますか?




Correct Answer: D 🗳️
カスタム Scalable Vector Graphic (SVG) を Lightning Web コンポーネントに含めることができる 3 つの手順はどれですか?
3つの回答を選択してください
Correct Answer: B,D,E 🗳️
Apex テストクラスで @testSetup アノテーションを使用することに関して正しい 2 つの記述はどれですか。
2つの回答を選択してください
Correct Answer: A,B 🗳️
開発者は金融システム用の Apex クラスを実装しています。クラス内では、変数「creditAmount」と「debitAmount」は、値が割り当てられると変更できないようにする必要があります。
開発者が変数を宣言して、その値が 1 回だけ割り当てられるようにするには、どの 2 つの方法がありますか?
2つの回答を選択してください
Correct Answer: A,B 🗳️
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