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

Purchase Salesforce : DEX-450 Exam Materials and then pass exam easily

DEX-450

Updated: Sep 17, 2026

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

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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

What is the duration, language, and format of Salesforce DEX-450 Exam

  • This exam is offered in only English.
  • Passing score 80%
  • There is a time limit of 120 minutes for the exam.
  • This exam consists of 85 questions
  • Certification Validity period : 3 years.
  • The type of questions is Multiple Choice and situation-based questions.

The validity of the Salesforce DEX-450 certification is three years.

Average Salary for Salesforce DEX-450 Exam Certified Professional

Salesforce administrator roles are in great demand nowadays. The average salaries of Salesforce DEX-450 exam Certified professional in:

  • Europe - 72,300 Euro
  • United State - 105,100 USD
  • England - 70,400 POUND
  • India - 16,42,330 INR

Salesforce DEX-450 Exam Overview:

Certification Vendor:Salesforce
Exam Name:Programmatic Development using Apex and Visualforce in Lightning Experience
Exam Number:DEX-450
Certificate Validity Period:2 years (for certification)
Exam Format:Multiple Choice, Multiple Select
Exam Duration:120 minutes
Available Languages:English
Passing Score:68%
Related Certifications:Platform Developer II (PDII)
Salesforce Certified Administrator
Real Exam Qty:60
Exam Price:$200 USD
Sample Questions:Salesforce DEX-450 Sample Questions
Exam Way:In-person testing center or online proctored exam
Pre Condition:No formal prerequisites, but recommended: 1-2 years Apex development experience, completion of Salesforce Developer Beginner and Intermediate Trailhead modules
Official Syllabus URL:https://trailhead.salesforce.com/credentials/platform-developer-exam

How to Study the Salesforce DEX-450 Exam

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 Pass4SureQuiz 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.

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

Salesforce DEX-450 Exam Syllabus Topics:

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

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