Exam Name: Programmatic Development using Apex and Visualforce in Lightning Experience
Certification Provider: Salesforce
Corresponding Certification: Salesforce Developer
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Instant Download Salesforce : DEX-450 Questions & Answers as PDF & Test Engine
Updated: Oct 11, 2026
No. of Questions: 202 Questions & Answers with Testing Engine
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- Total Questions: 202
- Updated on: Oct 11, 2026
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- Total Questions: 202
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- Total Questions: 202
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Salesforce DEX-450 Exam Overview:
| Certification Vendor: | Salesforce |
|---|---|
| Exam Name: | Programmatic Development using Apex and Visualforce in Lightning Experience |
| Exam Number: | DEX-450 |
| Related Certifications: | Salesforce Platform Developer II Salesforce Platform Developer I |
| Available Languages: | English |
| Exam Format: | Multiple choice questions (typical Salesforce training exams), Course assessment (format varies by provider) |
| Recommended Training: | Salesforce Apex Developer Guide Salesforce Visualforce Developer Guide |
| Exam Registration: | Salesforce Trailhead Training |
| Sample Questions: | DOWNLOAD DEMO |
| Exam Way: | Instructor-led training assessment or course completion exam (varies by training provider) |
| Pre Condition: | Basic understanding of object-oriented programming and database concepts is recommended. Prior Salesforce experience is helpful but not strictly required. |
| Official Syllabus URL: | https://trailhead.salesforce.com |
Salesforce DEX-450 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Apex Programming Fundamentals | - Collections and data handling
|
| Database and SOQL/SOSL | - SOQL queries
|
| Apex Triggers and Automation | - Order of execution
|
| Visualforce Development | - UI components
|
| Security and Best Practices | - Security model
|
| Testing and Debugging | - Apex testing framework
|
Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam FAQ — Worth Buying
Yes — download the free Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience demo and judge the cram before paying. Purchases include one-year service: 365 days of update versions sent asap by email; renew afterward at 50% off.
The Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience is Salesforce's certification exam for Salesforce Programmatic Development using Apex and Visualforce (Training Course). Short on time? Focused, simple-to-use material is the fix. Related credentials include Salesforce Platform Developer I, Salesforce Platform Developer II.
Basic understanding of object-oriented programming and database concepts is recommended. Prior Salesforce experience is helpful but not strictly required. Eligibility rules change over time, so verify the current requirements on the official page (official DEX-450 exam page) before registering.
The Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience blueprint spans 6 domains — including Apex Programming Fundamentals, Database and SOQL/SOSL, Security and Best Practices. The complete outline above lists every subtopic; budget your time by weight.
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Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Sample Questions:
An org has an existing flow that edits an Opportunity with an Update Records element. A developer must update the flow to also create a Contact and store the created Contact's ID on the Opportunity.
Which update must the developer make in the flow?
- A. Add a new Create Records element.
- B. Add a new Roll Back Records element.
- C. Add a new Get Records element.
- D. Add a new Update Records element.
Correct Answer: A 🗳️
A custom Visualforce controller calls the ApexPages.addMessage() method, but no messages are rendering on the page.
Which component should be added to the Visualforce page to display the message?
- A. <opex:message for"info"/>
- B. <apex:facet name="messages" />
- C. <apex:pageMessages />
- D. <apex:pageMessage severity="info'' />
Correct Answer: C 🗳️
Which two settings must be defined In order to update a record of a junction object?
Choose 2 answers
- A. Read/Write access on the junction object
- B. Read/Write access on the primary relationship
- C. Read access on the primary relationship
- D. Read/Write access on the secondary relationship
Correct Answer: B,D 🗳️
What are two ways a developer can get the status of an enqueued job for a class that implements the queueable interface?
Choose 2 answers
- A. View the Apex Jobs page
- B. View the Apex Flex Queue
- C. View the Apex Status page
- D. Query the AsyncApexJob object
Correct Answer: B,D 🗳️
A Next Best Action strategy uses an Enhance element that invokes an Apex method to determine a discount level for a Contact, based on a number of factors.
What is the correct definition of the Apex method?
- A.
- B.
- C.
- D.
Correct Answer: A 🗳️
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