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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 Jul. 16, 2024 (see below)
A developer must implement a CheckPaymentProcessor class that provides check processing payment capabilities that adhere to what defined for payments in the PaymentProcessor interface. public interface PaymentProcessor { void pay(Decimal amount); } Which is the correct implementation to use the PaymentProcessor interface class?
Universal Containers needs to create a custom user interface component that allows users to enter information about their accounts.
The component should be able to validate the user input before saving the information to the database.
What is the best technology to create this component?
A developer must implement a CheckPaymentProcessor class that provides check processing payment capabilities that adhere to what defined for payments in the PaymentProcessor interface. public interface PaymentProcessor { void pay(Decimal amount); } Which is the correct implementation to use the PaymentProcessor interface class?
Universal Containers needs to create a custom user interface component that allows users to enter information about their accounts.
The component should be able to validate the user input before saving the information to the database.
What is the best technology to create this component?
The Job_Application__c custom object has a field that is a Master-Detail relationship to the Contact object, where the Contact object is the Master. As part of a feature implementation, a developer needs to retrieve a list containing all Contact records where the related Account Industry is 'Technology' while also retrieving the contact's Job_Application__c records.
Based on the object's relationships, what is the most efficient statement to retrieve the list of contacts?
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