Salesforce DEX-450 Exam Topics

Salesforce DEX-450 Exam Overview :

Exam Name:	Build Applications Programmatically on the Salesforce Platform
Exam Code:	DEX-450
Certifications:	Salesforce Platform Developer I Certification
Expected no. of Questions in Actual Exam:	211
See Expected Questions:	Salesforce DEX-450 Expected Questions in Actual Exam

Salesforce DEX-450 Exam Objectives :

Section	Objectives
Declarative Automation	Create Formula Fields Create Roll-Up Summary Fields Understand Record Types Review Other Automation Tools Build a Data Model on the Salesforce Platform
Programming with Apex	Describe Key Aspects of Apex That Differentiate It from Other Languages, Such as Java and C# Describe Why Apex Transactions and Governor Limits Must Be Considered When Writing Apex Execute Simple Apex Use the sObject Data Type, the Primitive Data Types, and Basic Control Statements in Apex
Using SOQL and SOSL to Retrieve Your Orgâ€™s Data	Write a Basic Query Using Salesforce’s Query Language, SOQL Process the Result of a Query in Apex Create a Query Dynamically at Run-Time Use SOQL to Query Parent-Child Relationships Describe a Relationship Query Write a Query That Traverses a Child-to-Parent Relationship Write a Query That Traverses a Parent-to-Child Relationship Use SOSL to Search Data
Using DML to Manipulate Your Orgâ€™s Data	List the Differences Between the Ways You Can Invoke DML Operations Write Apex to Invoke DML Operations and Handle DML Errors
Deployment	What Is Deployment? Deploy Code Using Change Sets Use the Ant Migration Tool Review Managed and Unmanaged Packages Explore Salesforce DX
Trigger Essentials	Describe What a Trigger Is Used For Describe the Syntax of a Trigger Definition Use Trigger Context Variables
Apex Class Essentials	Describe How Apex Classes Are Used Define an Apex Class Determine What Data an Apex Class Can Access
The Save Order of Execution, Apex Transactions, and Platform Events	Describe Key Points in the Order of Execution Describe How Triggers Fit Into and Can Be Impacted by the Order of Execution Describe the Lifecycle of an Apex Transaction Describe the Memory Lifecycle for Static Attributes Use Platform Events for Immediate Error Logging
Apex Testing	Describe the Apex Testing Framework Create Test Data Write and Run an Apex Test Test Best Practices
Strategies for Designing Efficient Apex Solutions	Describe Best Practices for Writing Code That Is Easy to Maintain and Extend Write Triggers and Classes That Assume Batches of Data as Input Write Code That Works Efficiently with the Database, Both in Querying and Using DML
Trigger Design Strategies	List Declarative Mechanisms You Can Use to Implement Complex Business Logic, What Types of Problems They’re Best Used for, and Their Limitations Describe Ways in Which You Can Use Declarative Functionality to Improve Your Programmatic Solutions
Working with Visualforce	Create a Visualforce Page Reference a Standard Controller Launch a Visualforce Page Using a Custom Button Display Data from a Record in a Visualforce Page Reference Custom Controllers and Controller Extensions Work with List Controllers
Visualforce Development Considerations and Testing	Describe Common Limit Issues and Security Concerns Describe Strategies for Testing Visualforce Controllers Write Tests for Controller Constructors Write Tests for Action Methods, Getters, Setters, and Properties
Lightning Components	Create and Surface an Aura Component Create and Surface a Lightning Web Component
Official Information	https://trailhead.salesforce.com/en/academy/classes/dex450-build-applications-programmatically-on-the-salesforce-platform/

Updates in the Salesforce DEX-450 Exam Topics:

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