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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 Jun. 23, 2025 (see below)
The following Apex method is part of the ContactService class that is called from a trigger:
How should the developer modify the code to ensure best practices are met?
A)
C)
D)
A developer wants to import 500 Opportunity records into a sandbox.
Why should the developer choose to use Data Loader instead of Data Import Wizard?
Consider the following code snippet:
As part of the deployment cycle, a developer creates the following test class:
When the test class runs, the assertion fails.
Which change should the developer implement in the Apex test method to ensure the test method executes successfully?
A developer must implement a CheckPaymentProcessor class that provides check processing payment capabilities that adhere to what is defined for payments in the Payment Processor interface.
Which implementation is correct to use the PaymentProcessor interface class?
A)
B)
C)
D)
Universal Containers wants to assess the advantages of declarative development versus programmatic customization for specific use cases in its Salesforce implementation.
What are two characteristics of declarative development over programmatic customization?
Choose 2 answers
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