Paper on the desk, phone in your pocket, PC at home — the LatestCram DEX-450 package comes in PDF, software, and online modes, and you can switch between them freely. Downloads are unlimited, simultaneous use is unrestricted, and the same 202 practice questions for the Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience stay with you on every device.
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: | 3 years |
| Exam Duration: | 105–120 |
| Real Exam Qty: | 60–85 |
| Exam Format: | Multiple Select, Multiple Choice, Scenario-based |
| Passing Score: | 65%–80% |
| Available Languages: | English |
| Related Certifications: | Salesforce Platform Developer II |
| Exam Price: | $200 USD |
| 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 |
|---|---|---|
| Apex Programming Fundamentals | 25% | - Apex syntax, data types, and control structures
|
| Data Modeling and Management | 20% | - Custom objects, fields, and relationships
|
| Data Retrieval and Manipulation | 20% | - SOQL and SOSL queries
|
| Apex Classes, Triggers, and Execution | 20% | - Class structure, methods, and access modifiers
|
| Visualforce Development | 15% | - Page creation and standard controllers
|
Salesforce DEX-450 Exam — Your Questions, Our Answers
Registration for the Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience goes through the official channels listed here:
One detail worth knowing before you book: the DEX-450 exam is delivered Online proctored or onsite testing center.
Yes — the free trial exists so customers can fully understand the system before buying. Download the sample DEX-450 practice questions at no cost, explore the interface, and check the verified answers yourself. Once you purchase, 365 days of free updates are included, and if the product expires, the update service renews at a 50% discount from your member zone.
The Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience blueprint is organized into 5 domains, led by Apex Classes, Triggers, and Execution (20%), Visualforce Development (15%), and Apex Programming Fundamentals (25%). The complete weighted syllabus appears above on this page — it is the checklist your preparation should be measured against.
You will face 60–85 questions within 105–120 on the DEX-450 exam. The real exam pressure comes from that ratio — knowledge alone does not finish exams on time. Rehearse with the LatestCram test engine's timed mode, repeat the same question sets until the answers consolidate, and pacing stops being a risk factor.
Understanding of declarative development; experience with object-oriented programming; completion of recommended training or equivalent knowledge
Eligibility rules do get revised, so before booking, verify the current requirements on the official Salesforce exam page.
Delivery takes effect immediately: download right after payment, with an email copy arriving within one minute. If 2 hours pass with no email, check spam and contact customer service — professional staff can remotely guide installation and use if needed. Downloads and simultaneous use are not limited, so every device you own can carry the material.
If you sit the DEX-450 exam within 60 days of purchase and do not pass, the LatestCram money back guarantee covers you: file within 2 days of the exam with a scanned enrollment slip and the official score report (PDF), and the claim is processed within 7 days. The candidate name must match the payer name; the policy excludes exams taken within 3 days of purchase, purchases never used in an actual exam attempt, free materials, and expired orders. If you prefer to keep preparing, exchange the product for two free exam packages of equal value and retain the update service on your original purchase.
Salesforce lists these training resources for the Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience:
Courses build the framework; repeated practice consolidates it. Pair whichever resource you choose with 202 practice questions from LatestCram and important knowledge points stay learned, not just seen.
The DEX-450 exam — full title Programmatic Development using Apex and Visualforce in Lightning Experience — is Salesforce's own certification test, and passing it awards the Salesforce Platform Developer I certification at the Professional level. The certificate is valuable precisely because it is demanding: it proves to employers that your skills survived a vendor-built examination. It also serves as a stepping stone toward Salesforce Platform Developer II.
The passing score is 65%–80%, and the official registration fee is $200 USD. Note that the fee pays for a single attempt — a retake is charged at full price again, which is the expensive way to discover weak spots. The cheaper discovery method is self-testing: drill 202 practice questions at LatestCram in timed mode until your scores clear the passing mark with room to spare, then register.
Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Sample Questions:
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. accuntRec, sObjectType,isDeletable()
- C. Account,isDeleteable
- D. Schema,sObjectType,Account, isDeletable ()
Correct Answer: D 🗳️
The orderHelper class is a utility class that contains business logic for processing orders. Consider the following code snippet:
A developer needs to create a constant named delivery_multiplier with a value of 4.15. The value of the constant should not change at any time in the code.
How should the developer declare the delivery multiplier constant to meet the business objectives?
- A. static final decimal DELIVERY_MULTIPLIER = 4.15;
- B. decimal DELIVERY_MULTIPLIER = 4.15;
- C. constant decimal DELIVERY_MULTIPLIER = 4.15;
- D. static decimal DELIVERY_MULTIPLIER = 4.15;
Correct Answer: A 🗳️
A developer has identified a method in an Apex class that performs resource intensive actions in memory by iterating over the result set of a SOQL statement on the account. The method also performs a DML statement to save the changes to the database.
Which two techniques should the developer implement as a best practice to ensure transaction control and avoid exceeding governor limits'* Choose 2 answers
- A. Use the System.limit class to monitor the current CPU governor limit consumption.
- B. Use the Database.Savepoint method to enforce database integrity.
- C. Use the @ReadOnly annotation to bypass the number of rows returned by a SOQL.
- D. Use partial DML statements to ensure only valid data is committed.
Correct Answer: A,B 🗳️
What should a developer use to script the deployment and unit test execution as part of continuous integration?
- A. Developer Console
- B. Salesforce CLI
- C. Execute Anonymous
- D. VS Code
Correct Answer: B 🗳️
Refer to the following Apex code:
What is the value of x when it is written to the debug log?
- A. 1
- B. 4
- C. 0
- D. 2
Correct Answer: D 🗳️
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