Try and practice the latest Salesforce : DEX-450 real questions & answers
Last Updated: Oct 12, 2026
No. of Questions: 202 Questions & Answers with Testing Engine
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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 |
| Certificate Validity Period: | 2 years (for certification) |
| Passing Score: | 68% |
| Available Languages: | English |
| Real Exam Qty: | 60 |
| Exam Duration: | 120 minutes |
| Exam Price: | $200 USD |
| Related Certifications: | Salesforce Certified Administrator Platform Developer II (PDII) |
| Exam Format: | Multiple Select, Multiple Choice |
| Sample Questions: | DOWNLOAD DEMO |
| Exam Way: | In-person testing center or online proctored exam |
| Pre Condition: | No formal prerequisites, but recommended: 1-2 years Apex development experience, completion of Salesforce Developer Beginner and Intermediate Trailhead modules |
| Official Syllabus URL: | https://trailhead.salesforce.com/credentials/platform-developer-exam |
Salesforce DEX-450 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Asynchronous Apex | 10% | - Future Methods
|
| Topic 2: Apex Triggers | 12% | - Trigger Syntax and Context Variables
|
| Topic 3: Working with Data - SOQL and SOSL | 15% | - SOSL (Salesforce Object Search Language)
|
| Topic 4: Apex Testing | 13% | - Testing Best Practices
|
| Topic 5: Visualforce Pages | 8% | - VF Page Basics
|
| Topic 6: Apex Fundamentals | 10% | - Apex Basics
|
| Topic 7: Apex Transaction Management | 10% | - Transaction Control
|
| Topic 8: Apex Classes and Interfaces | 12% | - Apex Classes
|
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$200 USD per attempt, 68% to pass. Retakes cost the full fee — make the attempt count with the 202 practice questions for the DEX-450 exam at Actual4Cert.
No formal prerequisites, but recommended: 1-2 years Apex development experience, completion of Salesforce Developer Beginner and Intermediate Trailhead modules 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 is Salesforce's certification exam for Salesforce Developer, at the Platform Developer I level. The certificate is an indispensable credential in this field. Related credentials include Platform Developer II (PDII), Salesforce Certified Administrator.
Yes — download the free Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience demo before purchase; the full book torrent is better still. Purchases include 365 days of free updates by email; renew afterward at 50% off.
The Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience blueprint spans 8 domains — including Visualforce Pages (8%), Apex Classes and Interfaces (12%), Apex Fundamentals (10%). Our experts check the exam database daily to keep pace; the complete outline above lists every subtopic.
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Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Sample Questions:
Managers at Universal Containers want to ensure that only decommissioned containers are able to be deleted in the system. To meet the business requirement a Salesforce developer adds "Decommissioned" as a picklist value for the Status _c custom field within the Container _c object.
Which two approaches could a developer use to enforce only Container records with a status of "Decommissioned" can be deleted?
Choose 2 answers
- A. Validation rule
- B. Apex trigger
- C. Before record-triggered flaw
- D. After record-triggered flow
Correct Answer: B,D 🗳️
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 Update Records element.
- B. Add a new Create Records element.
- C. Add a new Get Records element.
- D. Add a new Roll Back Records element.
Correct Answer: B 🗳️
A developer wants to mark each Account in a List<Account> as either Active or Inactive, based on the value in the LastModified each Account being greater than 90 days in the past.
Which Apex technique should the developer use?
- A. A for loop, with an if or if/else statement inside
- B. A for loop, with a switch statement inside
- C. A witch statement, with a for loop inside
- D. An if-else statement, with a for loop inside
Correct Answer: A 🗳️
A developer must write an Apex method that will be called from a Lightning component. The method may delete an Account stored in the accountRec variable.
Which method should a developer use to ensure only users that should be able to delete Accounts can successfully perform deletions?
- A. accountRec, isDeletable()
- B. Account,isDeleteable
- C. Schema,sObjectType,Account, isDeletable ()
- D. accuntRec, sObjectType,isDeletable()
Correct Answer: C 🗳️
Universal Containers (UC) wants to lower its shipping cost while making the shipping process more efficient. The Distribution Officer advises UC to implement global addresses to allow multiple Accounts to share a default pickup address. The developer is tasked to create the supporting object and relationship for this business requirement and uses the Setup Menu to create a custom object called "Global Address".
Which field should the developer add to create the most efficient model that supports the business need?
- A. Add a lookup field on the Account object to the Global Address object.
- B. Add a master-detail field on the Global Address object to the Account object.
- C. Add a lookup field on the Global Address object to the Account object.
- D. Add a master-detail field on the Account object to the Global Address object.
Correct Answer: D 🗳️
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