Latest PDF of DEX-450: Programmatic Development using Apex and Visualforce in Lightning Experience

Programmatic Development using Apex and Visualforce in Lightning Experience Practice Test

DEX-450 exam Format | Course Contents | Course Outline | exam Syllabus | exam Objectives

Exam Details for DEX-450 Programmatic Development using Apex and Visualforce in Lightning Experience:

Number of Questions: The exam typically consists of multiple-choice questions, with a total of approximately 60 questions.

Time Limit: The total time allocated for the exam is usually 105 minutes.

Passing Score: The passing score for the exam varies, but it is generally set around 65% or higher.

Exam Format: The exam is usually conducted in a proctored environment, either in-person or online.

Course Outline:

The DEX-450 Programmatic Development using Apex and Visualforce in Lightning Experience course covers the following key areas:

1. Apex Development:
- Introduction to Apex programming language
- Apex syntax, data types, and variables
- Control statements and loops in Apex
- Exception handling and error management
- Apex triggers and trigger context variables
- Apex classes and object-oriented programming
- Apex unit testing and code coverage

2. Visualforce Development:
- Introduction to Visualforce framework
- Visualforce markup and components
- Controller classes and controller extensions
- Standard and custom Visualforce controllers
- Visualforce binding and expression language
- Visualforce page navigation and actions
- Visualforce component development

3. Lightning Component Development:
- Introduction to Lightning Component Framework
- Lightning component architecture and design principles
- Component markup and styling
- Lightning Data Service and data access
- Component communication and event handling
- Lightning Aura components vs. Lightning Web Components

4. Integration and Web Services:
- Apex integration with external systems
- Web service callouts and SOAP/REST integration
- Integration patterns and best practices
- Authentication and security considerations

Exam Objectives:

The objectives of the DEX-450 exam are to assess the candidate's understanding of the following:

1. Apex programming language and its features.
2. Visualforce framework and component development.
3. Lightning Component Framework and component development.
4. Integration and web services using Apex.
5. Best practices for programmatic development in Salesforce.

Exam Syllabus:

The exam syllabus for DEX-450 includes the following topics:

1. Apex Development
2. Visualforce Development
3. Lightning Component Development
4. Integration and Web Services

100% Money Back Pass Guarantee

DEX-450 PDF demo Questions

DEX-450 demo Questions

DEX-450 Dumps DEX-450 Braindumps
DEX-450 real questions DEX-450 practice test DEX-450 genuine Questions
killexams.com SalesForce DEX-450
Programmatic Development using Apex and Visualforce in Lightning Experience
https://killexams.com/pass4sure/exam-detail/DEX-450
Question: 88
In a single record, a user selects multiple values from a multi-select picklist. How are the selected values represented in Apex?
1. As a String with each value separated by a comma
2. As a Set with each value as an element in the set
3. As a String with each value separated by a semicolon
4. As a List with each value as an element in the list Previous
Answer: C
Question: 89
What is a benefit of using an after insert trigger over using a before insert trigger?
1. An after insert trigger allows a developer to bypass validation rules when updating fields on the new record.
2. An after insert trigger allows a developer to insert other objects that reference the new record.
3. An after insert trigger allows a developer to make a callout to an external service.
4. An after insert trigger allows a developer to modify fields in the new record without a query.
Answer: B
Question: 90
Why would a developer consider using a custom controller over a controller extension?
1. To increase the SOQL query governor limits.
2. To implement all of the logic for a page and bypass default Salesforce functionality
3. To leverage built-in functionality of a standard controller
4. To enforce user sharing settings and permissions
Answer: B
Question: 91
Using the Schema Builder, a developer tries to change the API name of a field that is referenced in an Apex test class.
What is the end result?
1. The API name is not changed and there are no other impacts.
2. The API name of the field and the reference in the test class is changed.
3. The API name of the field is changed, and a warning is issued to update the class.
4. The API name of the field and the reference in the test class is updated.
Answer: C
Question: 92
Which set of roll-up types are available when creating a roll-up summary field?
1. COUNT, SUM, MIN, MAX
2. AVERAGE, SUM, MIN, MAX
3. SUM, MIN, MAX
4. AVRAGE, COUNT, SUM, MIN, MAX
Answer: A
Question: 93
Which two number expressions evaluate correctly? (Choose two.)
1. Double d = 3.14159;
2. Integer I = 3.14159;
3. Decimal d = 3.14159; D. Long l = 3.14159;
Answer: A,C
Question: 94
How should a developer prevent a recursive trigger?
1. Use a �one trigger per object� pattern.
2. Use a static Boolean variable.
3. Use a trigger handler.
4. Use a private Boolean variable.
Answer: D
Question: 95
A developer needs to create a Visualforce page that displays Case data. The page will be used by both support reps and support managers. The Support Rep profile does not allow visibility of the Customer_Satisfaction c field, but the Support Manager profile does.
How can the developer create the page to enforce Field Level Security and keep future maintenance to a minimum?
1. Create one Visualforce Page for use by both profiles.
2. Use a new Support Manager permission set.
3. Create a separate Visualforce Page for each profile.
4. Use a custom controller that has the with sharing keywords.
Answer: D
Question: 96
How can a developer determine, from the DescribeSObjectResult, if the current user will be able to create records for an object in Apex?
1. By using the isInsertable() method.
2. By using the isCreatable() method.
3. By using the hasAccess() method.
4. By using the canCreate() method.
Answer: B
Question: 97
A newly hired developer discovers that there are multiple triggers on the case object. What should the developer consider when working with triggers?
1. Developers must dictate the order of trigger execution.
2. Trigger execution order is based on creation date and time.
3. Unit tests must specify the trigger being tested.
4. Trigger execution order is not guaranteed for the same sObject.
Answer: D
Question: 98
Which two statements are true about using the @testSetup annotation in an Apex test class? (Choose two.)
1. The @testSetup annotation cannot be used when the @isTest(SeeAllData=True) annotation is used.
2. Test data is inserted once for all test methods in a class.
3. Records created in the @testSetup method cannot be updates in individual test methods.
4. The @testSetup method is automatically executed before each test method in the test class is executed.
Answer: D
Question: 99
A developer has the following query: Contact c = [SELECT id, firstname, lastname, email FROM Contact WHERE lastname = �Smith�];
What does the query return if there is no Contact with the last name �Smith�?
1. A contact initialized to null.
2. An error that no rows are found.
3. An empty List of Contacts.
4. A Contact with empty values.
Answer: B
Question: 100
Which SOQL query successfully returns the Accounts grouped by name?
1. SELECT Type, Max(CreatedDate) FROM Account GROUP BY Name
2. SELECT Name, Max(CreatedDate) FROM Account GROUP BY Name
3. SELECT Id, Type, Max(CreatedDate) FROM Account GROUP BY Name
4. SELECT Type, Name, Max(CreatedDate) FROM Account GROUP BY Name LIMIT 5
Answer: B

Killexams VCE exam Simulator 3.0.9

Download Killexams-Exam-Simulator-3.0.9.rar

Killexams has introduced Online Test Engine (OTE) that supports iPhone, iPad, Android, Windows and Mac. DEX-450 Online Testing system will helps you to study and practice using any device. Our OTE provide all features to help you memorize and practice test Q&A while you are travelling or visiting somewhere. It is best to Practice DEX-450 exam Questions so that you can answer all the questions asked in test center. Our Test Engine uses Questions and Answers from genuine Programmatic Development using Apex and Visualforce in Lightning Experience exam.

Killexams Online Test Engine Test Screen

Killexams Online Test Engine Progress Chart

Killexams Online Test Engine Test History Graph

Killexams Online Test Engine Performance History

Killexams Online Test Engine Result Details

Online Test Engine maintains performance records, performance graphs, explanations and references (if provided). Automated test preparation makes much easy to cover complete pool of questions in fastest way possible. DEX-450 Test Engine is updated on daily basis.

Make sure you success with legit DEX-450 real questions that appeared today.

At killexams.com, we have empowered countless applicants to pass their exams and achieve their certifications. Our DEX-450 real questions is reliable, up-to-date, and of the highest quality, designed to meet the challenges of any IT certification exam. Our DEX-450 Free PDF is sourced from real DEX-450 exams, ensuring a high likelihood of passing the DEX-450 exam with flying colors.

Latest 2025 Updated DEX-450 Real exam Questions

If you are pressed for time to pass the SalesForce DEX-450 exam for career growth or job opportunities, killexams.com is your premier choice. Our team of professional experts compiles authentic DEX-450 exam questions to ensure your success in the Programmatic Development using Apex and Visualforce in Lightning Experience exam. Access the latest DEX-450 exam questions with every login to your account. While many organizations provide DEX-450 Practice Tests, the key is securing valid and up-to-date 2025 DEX-450 Practice Tests. Relying solely on free online practice exams can be risky, as they may be unreliable and lead to exam failure. Instead, invest a small fee in killexams.com’s genuine questions to avoid the costly consequences of an unsuccessful exam attempt. To excel in the Programmatic Development using Apex and Visualforce in Lightning Experience DEX-450 exam, selecting a trusted and reputable preparation source like killexams.com is essential. Our platform provides access to an extensive collection of authentic DEX-450 exam questions, regularly updated to align with the latest exam trends. With killexams.com’s premium practice test materials, available through Online Test Engine or Desktop Test Engine, you can prepare confidently and thoroughly. Avoid the pitfalls of outdated or unreliable DEX-450 practice exams found online, which could jeopardize your success. By investing a modest fee in killexams.com’s genuine questions, you ensure a strong foundation to pass the SalesForce DEX-450 exam and propel your career forward.

Killexams Review | Reputation | Testimonials | Customer Feedback

Despite being ranked low amongst my classmates, registering on Killexams.com for exam help helped me become one of the top-performing students. The study materials provided by Killexams.com, including the DEX-450 practice exams and books, were particularly beneficial for my education. I am happy to share my appreciation for this excellent resource, and I am grateful for the opportunity to use it.
Lee [2025-4-28]

Recently, I took the SalesForce DEX-450 exam and scored a perfect 100%, all thanks to Killexams.com. I was pleasantly surprised to find that the exam questions were incredibly similar to those provided by Killexams.com. I highly recommend Killexams.com for anyone preparing for an exam, as it covers all syllabus thoroughly and effectively.
Lee [2025-5-20]

The Killexams.com mock tests for the DEX-450 exam were a game-changer. The questions were spot-on, and the detailed explanations helped me grasp complex concepts effortlessly. I passed the exam without any issues and provide Killexams.com four stars for their outstanding resources. They are a must for any serious candidate.
Lee [2025-4-2]

More DEX-450 testimonials...

DEX-450 Exam

User: Richard*****

I passed the DEX-450 exam with a remarkable 92% score, thanks to killexams.com’s practice exams and exam notes. The materials were well-presented, especially for syllabus like Instructor Communication and Presentation Skills, making complex concepts easy to grasp. Their resources were instrumental in my success, and I am grateful for their support.

User: Stephen*****

During my preparation for the dex-450 exam, my primary resource was Killexams.com Questions and Answers. I was able to answer 87 questions in just 55 minutes and pass with flying colors. I am indebted to Killexams.com for their outstanding practice tests, which proved to be instrumental in my success.

User: Sophie*****

The dex-450 exam was tough, and I honestly do not know how long it would have taken me to prepare for it on my own. However, with Killexams.com questions, I found it easy to memorize and understand the real and accurate questions, which ultimately helped me pass the exam with ease. I highly recommend Killexams.com for anyone who wants to add the dex-450 certification to their resume.

User: Ayden*****

Practicing repeatedly with Killexams.com’s DEX-450 test material was the key to my success. Their resources are incredibly effective—thank you for such a valuable platform.

User: Zoey*****

Losing my dex-450 syllabus a week before the exam was stressful, but killexams.com proved to be a lifesaver. Their comprehensive practice exams and study materials filled the gap, providing clear guidance and relevant content. Preparation became straightforward, and I passed the exam with a strong score. I am thankful for killexams.com’s reliable resources and highly recommend them to anyone in a similar situation.

DEX-450 Exam

Question: How much marks I can get with DEX-450 dumps?
Answer: It is up to you. With DEX-450 test prep, you can even get 100% marks in the genuine test. Killexams helps greatly to memorize DEX-450 Q&A while you take DEX-450 practice exams again and again. You will see that you will memorize all the questions and you will be taking 100% marks. That means you are fully prepared to take the genuine DEX-450 test.

Question: Does DEX-450 genuine questions really help in genuine test?
Answer: Yes, Of course, these DEX-450 questions work in the genuine test. You will pass your exam with these DEX-450 test prep. If you provide some time to study, you can prepare for an exam with much boost in your knowledge. We recommend spending as much time as you can to study and practice DEX-450 practice test until you are sure that you can answer all the questions that will be asked in the genuine DEX-450 exam. For this, you should visit killexams.com and register to obtain the complete dumps questions of DEX-450 exam test prep. These DEX-450 exam questions are taken from genuine exam sources, that's why these DEX-450 exam questions are sufficient to read and pass the exam. Although you can use other sources also for improvement of knowledge like textbooks and other aid material these DEX-450 questions are sufficient to pass the exam.

Question: Where am I able to obtain DEX-450 real exam question?
Answer: Killexams.com is the best place to get updated DEX-450 real exam questions. These DEX-450 genuine questions work in the genuine test. You will pass your exam with these DEX-450 questions. If you provide some time to study, you can prepare for an exam with much boost in your knowledge. We recommend spending as much time as you can to study and practice DEX-450 practice test until you are sure that you can answer all the questions that will be asked in the genuine DEX-450 exam. For this, you should visit killexams.com and register to obtain the complete dumps questions of DEX-450 exam test prep. These DEX-450 exam questions are taken from genuine exam sources, that's why these DEX-450 exam questions are sufficient to read and pass the exam. Although you can use other sources also for improvement of knowledge like textbooks and other aid material these DEX-450 questions are sufficient to pass the exam.

Question: Exam questions are changed, Where am I able to find new questions and answers?
Answer: Killexams.com keep on checking update on regular basis and change the exam questions accordingly. When any new update is received, it is included in the dumps questions and users are informed by email to re-download the exam files. Killexams overwrites the previous files in the obtain section so that you have the latest exam questions all the time. So, there is no need to search the update anywhere. Just re-download the exam files if you receive an intimation of update.

Question: What study guide do I need to read to pass DEX-450 exam?
Answer: Killexams DEX-450 study guide contains test prep that greatly help you to pass your exam. These DEX-450 exam questions are taken from genuine exam sources, that's why these DEX-450 exam questions are sufficient to read and pass the exam. Although you can use other sources also for improvement of knowledge like textbooks and other aid material these DEX-450 questions are sufficient to pass the exam. After registering at the killexams.com website, obtain the full DEX-450 exam version with a complete DEX-450 question bank. Memorize all the questions and practice with the exam simulator again and again. You will be ready for the genuine DEX-450 test. All the DEX-450 Q&A are up to date with the latest DEX-450 syllabus and exam contents.

References

Frequently Asked Questions about Killexams Practice Tests

Do you recommend me to use this wonderful material to update genuine test questions?
Killexams highly recommend these DEX-450 questions to memorize before you go for the genuine exam because this DEX-450 dumps questions contains an up-to-date and 100% valid DEX-450 dumps questions with a new syllabus.

How much daily study is required to pass DEX-450 exam?
Usually, if you have a busy schedule, you need to spend two hours daily practicing and practice DEX-450 brainpractice questions. If you are free and you have more time to study, you can prepare for an exam even in 24 hours. Although, we recommend taking your time to study and practice DEX-450 exam practice questions until you are sure that you can answer all the questions that will be asked in the genuine DEX-450 exam. For complete DEX-450 brainpractice questions, visit killexams.com and register to obtain the dumps questions of DEX-450 exam practice questions. These DEX-450 exam questions are taken from genuine exam sources, that\'s why these DEX-450 exam questions are sufficient to read and pass the exam. Although you can use other sources also for improvement of knowledge like textbooks and other aid material these DEX-450 practice questions are sufficient to pass the exam.

I want to pay in my local currency, Can I do it?
Yes, you can buy exam products in your local currency. After adding your exam to the cart, you will see the payment screen where you can select your local currency. Our banking system usually charges in your local currency even our base currency is USD.

Is Killexams.com Legit?

You bet, Killexams is fully legit and even fully reliable. There are several features that makes killexams.com realistic and legit. It provides informed and 100% valid exam dumps filled with real exams questions and answers. Price is small as compared to a lot of the services on internet. The Q&A are up to date on common basis with most exact brain dumps. Killexams account arrangement and supplement delivery is really fast. Record downloading is usually unlimited as well as fast. Help support is available via Livechat and Email. These are the features that makes killexams.com a robust website that provide exam dumps with real exams questions.

Other Sources

Which is the best testprep site of 2025?

Discover the ultimate exam preparation solution with Killexams.com, the leading provider of premium practice test questions designed to help you ace your exam on the first try! Unlike other platforms offering outdated or resold content, Killexams.com delivers reliable, up-to-date, and expertly validated exam Q&A that mirror the real test. Our comprehensive dumps questions is meticulously updated daily to ensure you study the latest course material, boosting both your confidence and knowledge. Get started instantly by downloading PDF exam questions from Killexams.com and prepare efficiently with content trusted by certified professionals. For an enhanced experience, register for our Premium Version and gain instant access to your account with a username and password delivered to your email within 5-10 minutes. Enjoy unlimited access to updated Q&A through your obtain Account. Elevate your prep with our VCE practice test Software, which simulates real exam conditions, tracks your progress, and helps you achieve 100% readiness. Sign up today at Killexams.com, take unlimited practice tests, and step confidently into your exam success!

100% Money Back Pass Guarantee

Back to List

Social Profiles

Programmatic Development using Apex and Visualforce in Lightning Experience Practice Test

DEX-450 exam Format | Course Contents | Course Outline | exam Syllabus | exam Objectives

100% Money Back Pass Guarantee

DEX-450 PDF demo Questions

DEX-450 demo Questions

Killexams VCE exam Simulator 3.0.9

Make sure you success with legit DEX-450 real questions that appeared today.

Latest 2025 Updated DEX-450 Real exam Questions

Tags

Killexams Review | Reputation | Testimonials | Customer Feedback

DEX-450 Exam

DEX-450 Exam

References

Frequently Asked Questions about Killexams Practice Tests

Is Killexams.com Legit?

Other Sources

Which is the best testprep site of 2025?

Important Links for best testprep material

100% Money Back Pass Guarantee

Social Profiles