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Salesforce DEX-450 Exam

Certification Provider: Salesforce
Exam Name: Build Applications Programmatically on the Salesforce Platform
Number of questions in our database: 237
Exam Version: Feb. 17, 2024
DEX-450 Exam Official Topics:
  • 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

The questions for DEX-450 were last updated On Feb. 17, 2024

Question #1

A developer at AW Computing is tasked to create the supporting test class for a programmatic customization that leverages records stored within the custom object,

Pricing Structure c. AW Computing has a complex pricing structure for each item on the store, spanning more than 500 records.

hich two approaches can the developer use to ensure Pricing _Structure__c records are available when the test class is executed?

Choose 2 answers

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Correct Answer: A, C

Question #2

When the code executes, a DML exception is thrown.

How should a developer modify the code to ensure exceptions are handled gracefully?

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Correct Answer: C

Question #3

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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Correct Answer: B

Question #4

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?

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Correct Answer: B

Question #5

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?

Reveal Solution Hide Solution
Correct Answer: B


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