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Salesforce DEX-450 Exam Questions
- Topic 1: Describe how triggers fit into and can be impacted by the Order of Execution/ Building a Data Model on the Salesforce Platform
- Topic 2: Referencing Custom Controllers and Controller Extensions/ Use the sObject data type, the primitive data types, and basic control statements in Apex
- Topic 3: Process the result of a query in Apex/ Understanding Record Types/ Use trigger context variables
- Topic 4: Describe strategies for Testing Visualforce controllers/ Use SOQL to Query Parent-Child Relationships
- Topic 5: Write a query that traverses a child-to-parent and parent-to-child relationship/ Creating Roll-Up Summary Fields
- Topic 6: Write a basic query using Salesforce’s query language, SOQL/ Write Apex to invoke DML operations and handle DML errors
- Topic 7: Write tests for action methods, getters, setters, and properties/ List the differences between the ways you can invoke DML operations
- Topic 8: Describe the syntax of a trigger definition/ Display data from a record in a Visualforce page
- Topic 9: Describe common limit issues and security concerns/ Launch a Visualforce page using a custom button
- Topic 10: Visualforce Development Considerations and Testing/ Determine what data an Apex class can access
- Topic 11: Describe the memory lifecycle for static attributes/ Use Platform Events for Immediate Error Logging
- Topic 12: Describe practices for writing code that is easy to maintain and extend/ Write triggers and classes that assume batches of data as input
Free Salesforce DEX-450 Exam Actual Questions
Note: Premium Questions for DEX-450 were last updated On Aug. 05, 2026 (see below)
A developer is tasked to perform a security review of the ContactSearch Apex class that exists in the system. Within the class, the developer identifies the following method as a security threat:
ist
return Database.query('SELECT Id, FirstName, LastName FROM Contact WHERE LastName Like
s'+lastName+'s'")?;
What are two ways the developer can update the method to prevent a SOQL injection attack?
Choose 2 answers
Given the following Anonymous block:
What should a developer consider for an environment that has over 10,000 Case records?
What should a developer consider for an environment that has over 10,000 Case records?
Cloud Kicks Fitness, an ISV Salesforce partner, is developing a managed package application. One of the application modules allows the user to calculate body fat using the Apex class, Bodyfat, and its method, calculateBodyFat (). The product owner wants to ensure this method is accessible by the consumer of the application when developing customizations outside the ISV's package namespace.
Which approach should a developer take to ensure calculateBodyFat () is accessible outside the package namespace?
What should a developer do to check the code coverage of a class after running all tests?
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