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

"Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版)", also known as DEX-450 exam, is a Salesforce Certification. With the complete collection of questions and answers, ExamcollectionPass has assembled to take you through 202 Q&As to your DEX-450 Exam preparation. In the DEX-450 exam resources, you will cover every field and category in Salesforce Developer Certification helping to ready you for your successful Salesforce Certification.

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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
  • Updated: Sep 03, 2026
  • No. of Questions: 202 Questions & Answers with Testing Engine
  • Download Limit: Unlimited

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The DEX-450 Test can be prepared in several respects. There are many forms to train for this test. Aspirants can select the PDFs available on the official website of Salesforce and they are also able to view videos online. The Qualification Questions Team strongly maintains that information obtained from multiple testing materials and references must be tested using high-quality evaluation engines when they fulfil the actual test. Before being greenlit, all our study material is confirmed repeatedly by experts.DEX-450 exam dumps of qualification-questions will be continuously revised, so the DEX-450 Test will be mirrored into the Dex-450 practice exams of any changes to the Salesforce Agile Research Certification materials. Expert team on ExamcollectionPass advises that you take quality notes on these subjects and that you should not neglect to follow DEX-450 exam dumps, which has been written by our expert staff.

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How much Salesforce DEX-450 Exam Cost

The price of the Salesforce DEX-450 certification is $375 USD, for more information related to the Salesforce DEX-450 Exam please visit Salesforce website.

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How to book the Salesforce DEX-450 Exam

There are the following steps for registering the Salesforce DEX-450 exam:

Step 1: Visit Salesforce Exam Registration Step 2: Signup/Login to Salesforce account Step 4: Select Date, time and confirm with the payment method

Reference: https://trailhead.salesforce.com/en/academy/classes/dex450-build-applications-programmatically-on-the-salesforce-platform/

Benefits in Obtaining Salesforce DEX-450 Certification

71 percent of bachelor's degree expert methodology and energetic methodology certified methodologists receive up to another 16 percent are recorded in the Salesforce annual analytical compensation survey. The certification from Salesforce DEX-450 strengthens your expertise as well as your know-how to ensure that your views are agile in a system of market research. The physical test applicants of the Salesforce DEX-450 certification perceive a fresh advantage on other comrades when being interviewed. In the project market, aspirants find themselves even more aggressive. Salesforce DEX-450 is understood worldwide so that certified aspirants, along with methods of organizational analysis, are simply more self-confident.

The DEX-450 qualification from Salesforce enhances your expertising and expertise to apply an agile perspective within a system of corporate research. At the interview DEX-450 examiners pick a corner over other comrades. In the labour market, aspirants are more competitive.

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Salesforce DEX-450日本語 Exam Syllabus Topics:

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

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