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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 |
| Certificate Validity Period: | 3 years |
| Available Languages: | English |
| Real Exam Qty: | 60–85 |
| Exam Format: | Multiple Choice, Scenario-based, Multiple Select |
| Exam Duration: | 105–120 |
| Passing Score: | 65%–80% |
| 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 |
|---|---|---|
| Topic 1: Data Retrieval and Manipulation | 20% | - SOQL and SOSL queries
|
| Topic 2: Apex Classes, Triggers, and Execution | 20% | - Class structure, methods, and access modifiers
|
| Topic 3: Visualforce Development | 15% | - Page creation and standard controllers
|
| Topic 4: Data Modeling and Management | 20% | - Custom objects, fields, and relationships
|
| Topic 5: Apex Programming Fundamentals | 25% | - Apex syntax, data types, and control structures
|
DEX-450 FAQ — Efficient Preparation Starts Here
Understanding of declarative development; experience with object-oriented programming; completion of recommended training or equivalent knowledge Eligibility rules do change, so confirm the current requirements on the official page (official DEX-450 exam page) before booking.
105–120 for 60–85 questions. Efficiency beats exhaustion: the ExamTorrent software version simulates the real test scene and scores your performance, so every practice hour moves you forward.
Yes:
Training gives knowledge direction; practice gives it proof. Follow courses with the 202 practice questions for the Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience to measure real progress.
Delivery and payment are both safe: we support credit card payment, your information is protected by a strict system, and the product emails automatically within a minute of purchase — unlimited devices, 7*24 support if nothing arrives within 2 hours. If you fail the corresponding DEX-450 exam within 60 days of purchase, we refund in full: provide a scanned enrollment slip plus the official Score Report PDF within 2 days of the exam, processed within 7 days. Excluded: exams within 3 days of purchase, candidate names that don't match the payer, and free or expired products. Or exchange for two equal-value products free.
$200 USD per attempt, 65%–80% to pass. Since a retake costs the full fee, prepare with direction: the 202 practice questions from ExamTorrent focus your effort where the exam points are.
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 validates applied skills employers hire for — a credential worth the effort. Related credentials include Salesforce Platform Developer II.
The Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience blueprint covers 5 domains — including Apex Classes, Triggers, and Execution (20%), Apex Programming Fundamentals (25%), Data Retrieval and Manipulation (20%). The weightings are your efficiency map: heavy domains first. Every subtopic appears in the outline above.
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, so pick the arrangement that suits you when booking.
Yes — download the free Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience demo and judge the question quality before paying. Every purchase stays valid for 365 days with free updates throughout, renewable afterward at 50% off.
Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Sample Questions:
Which two events need to happen when deploying to a production org?
Choose 2 answers
- A. All Visual flows must have at least 1% test coverage.
- B. All triggers must have some test coverage
- C. All Apex code must have at least 75% test coverage.
- D. All custom objects must have visibility set to a value other than in Development.
Correct Answer: B,C 🗳️
A developer is migrating a Visualforce page into a Lightning web component.
The Visualforce page shows information about a single record. The developer decides to use Lightning Data Service to access record data.
Which security consideration should the developer be aware of?
- A. Lightning Data Service ignores field-level security.
- B. The isAccessible () method must be used for field-level access checks.
- C. Lightning Data Service handles sharing rules and field-level security.
- D. The with sharing keyword must be used to enforce sharing rules.
Correct Answer: C 🗳️
What is the value of the Trigger.old context variable in a before insert trigger?
- A. An empty list of sObjects
- B. null
- C. A list of newly created sObjects without IDs
- D. Undefined
Correct Answer: B 🗳️
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In the following example, which sharing context will myMethod execute when it is invoked?
- A. Sharing rules will be enforced for the running user.
- B. Sharing rules will not be enforced for the running user.
- C. Sharing rules will be enforced by the instantiating class.
- D. Sharing rules will be inherited from the calling context.
Correct Answer: D 🗳️
Given the following Anonymous block:
What should a developer consider for an environment that has over 10,000 Case records?
What should a developer consider for an environment that has over 10,000 Case records?
- A. The transaction will fail due to exceeding the governor limit.
- B. The try-catch block will handle any DML exceptions thrown,
- C. The try-catch block will handle exceptions thrown by governor limits.
- D. The transaction will succeed and changes will be committed.
Correct Answer: A 🗳️
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