Smooth preparation needs current material. ValidVCE always checks the updating of the Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience set — 202 practice questions for the DEX-450 exam, accurate through 2026.
Salesforce DEX-450 Exam Overview:
| Certification Vendor: | Salesforce |
|---|---|
| Exam Name: | Programmatic Development using Apex and Visualforce in Lightning Experience |
| Exam Number: | DEX-450 |
| Exam Price: | $200 USD |
| Exam Duration: | 105–120 |
| Related Certifications: | Salesforce Platform Developer II |
| Exam Format: | Scenario-based, Multiple Choice, Multiple Select |
| Passing Score: | 65%–80% |
| Real Exam Qty: | 60–85 |
| Available Languages: | English |
| Certificate Validity Period: | 3 years |
| Recommended Training: | Build Applications Programmatically on the Salesforce Platform (DEX450) |
| Exam Registration: | Salesforce Certification Portal |
| Sample Questions: |  |
| Exam Way: | Online proctored or onsite testing center |
| Pre Condition: | Understanding of declarative development; experience with object-oriented programming; completion of recommended training or equivalent knowledge |
| Official Syllabus URL: | https://trailhead.salesforce.com/en/credentials/platform-developer-i |
Salesforce DEX-450 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Visualforce Development | 15% | - Page creation and standard controllers
|
| Topic 2: Data Retrieval and Manipulation | 20% | - SOQL and SOSL queries
|
| Topic 3: Data Modeling and Management | 20% | - Custom objects, fields, and relationships
|
| Topic 4: Apex Classes, Triggers, and Execution | 20% | - Class structure, methods, and access modifiers
|
| Topic 5: Apex Programming Fundamentals | 25% | - Apex syntax, data types, and control structures
|
Salesforce DEX-450 Exam: FAQ for Busy Professionals
Yes — download the free Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience demo and inspect the material before buying. Purchases include the right of free updating for 365 days, with latest versions emailed promptly upon release; renew afterward at 50% off.
$200 USD per attempt, 65%–80% to pass. For busy professionals, one prepared attempt beats two rushed ones — work through the 202 practice questions for the DEX-450 exam at ValidVCE first.
The Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience blueprint covers 5 domains — including Data Modeling and Management (20%), Apex Classes, Triggers, and Execution (20%), Apex Programming Fundamentals (25%). Budget your limited hours by weighting; the complete outline above lists every subtopic.
Through the vendor's official registration channels:
The Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience is delivered Online proctored or onsite testing center — pick the arrangement that fits your calendar when booking.
The Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience is Salesforce's certification exam for Salesforce Platform Developer I, at the Professional level. It's among the most authoritative credentials in the field — for those aiming at Salesforce careers, it's the first step. Related credentials include Salesforce Platform Developer II.
Files arrive by automatic email within a minute of payment — unlimited devices, and 24/7 customer assisting if nothing shows up within 2 hours (check spam). Need an invoice? Email us your company name for a custom invoice made to your demand. If you fail the corresponding DEX-450 exam within 60 days of purchase, we process a full refund within 7 days — send a scanned enrollment slip plus the official Score Report PDF within 2 days of the exam. Excluded: exams within 3 days of purchase, candidate names that don't match the payer, and free or expired products. Alternatively, exchange for two equal-value products free.
Understanding of declarative development; experience with object-oriented programming; completion of recommended training or equivalent knowledge Vendors update eligibility rules over time, so verify the current requirements on the official page (official DEX-450 exam page) before registering.
Yes:
Official training teaches; practice proves. After any course, review with the 202 practice questions for the Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience — answers expert-verified.
105–120 for 60–85 questions. Time-pressed candidates should rehearse the clock: short timed sets on busy days, full simulations on free ones.
Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Sample Questions:
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.
Which two approaches can the developer use to ensure Pricing _Structure__c records are available when the test class is executed?
Choose 2 answers
- A. Use the @TsTest (SeeAllData=true) annotation.
- B. Use the Test. leadteat{) method.
- C. Use a Test Date Factory class.
- D. Use without sharing on the class declaration.
Correct Answer: A,C 🗳️
Which statement should be used to allow some of the records in a list of records to be inserted if others fail to be inserted?
- A. Database. insert (records, false)
- B. Database. insert (records, true)
- C. insert records
- D. insert (records, false)
Correct Answer: A 🗳️
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Which three steps allow a custom Scalable Vector Graphic (SVG) to be included in a Lightning web component?
Choose 3 answers
- A. Reference the property in the HTML template.
- B. Import the SVG as a content asset file.
- C. Reference the import in the HTML template.
- D. Import the static resource and provide a JavaScript property for it.
- E. Upload the SVG as a static resource.
Correct Answer: C,D,E 🗳️
How can a developer check the test coverage of autolaunched Flows before deploying them in a change set?
- A. Use the ApextestResult class.
- B. Use the Flow Properties page.
- C. Use the Code Coverage Setup page,
- D. Use SOQL and the Tooling API.
Correct Answer: D 🗳️
While writing an Apex class, a developer wants to make sure that all functionality being developed is handled as specified by the requirements.
Which approach should the developer use to be sure that the Apex class is working according to specifications?
- A. Include a try/catch block to the Apex class.
- B. Create a test class to execute the business logic and run the test in the Developer Console.
- C. Run the code in an Execute Anonymous block in the Developer Console.
- D. Include a savepoint and pacabase.rollback().
Correct Answer: D 🗳️
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