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DEX-450 Valid Mock Exam & DEX-450 Practice Exams
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PassCollection have made customizable Programmatic Development using Apex and Visualforce in Lightning Experience (DEX-450) practice tests so that users can take unlimited tests and improve Programmatic Development using Apex and Visualforce in Lightning Experience (DEX-450) exam preparation day by day. These Salesforce DEX-450 practice tests are based on the real examination scenario so the students can feel the pressure and learn to deal with it. The customers can access the result of their previous given Programmatic Development using Apex and Visualforce in Lightning Experience (DEX-450) exam history and try not to make any excessive mistakes in the future.
Earning the Salesforce DEX-450 certification demonstrates that a developer has the skills and knowledge needed to build custom applications on the Salesforce platform using Apex and Visualforce. It also validates their understanding of the Lightning Components framework and shows that they can create Lightning Components that can be used in Lightning Experience. Programmatic Development using Apex and Visualforce in Lightning Experience certification is a valuable credential for developers who want to advance their careers and work on complex Salesforce projects.
Salesforce DEX-450 Certification Exam is designed for professionals who have experience in programmatic development using Apex and Visualforce in Lightning Experience. Programmatic Development using Apex and Visualforce in Lightning Experience certification is ideal for developers who want to demonstrate their expertise in building custom applications on the Salesforce platform. DEX-450 exam tests candidates on their knowledge of Apex programming language, Visualforce markup language, and Lightning Components framework.
2025 DEX-450 Valid Mock Exam - High Pass-Rate Salesforce DEX-450 Practice Exams: Programmatic Development using Apex and Visualforce in Lightning Experience
The Salesforce DEX-450 certification is a valuable credential and comes with certain benefits. You can use Programmatic Development using Apex and Visualforce in Lightning Experience exam certificate to inspire managers or employers. For many professionals, the Salesforce DEX-450 Certification Exam will not only validate your expertise but also gives you an edge in the job market or the corporate ladder.
Salesforce DEX-450 certification exam consists of 60 multiple-choice questions, which are designed to test the developer's understanding of Apex programming language, Visualforce framework, and Lightning components. DEX-450 Exam is timed, and candidates are given 105 minutes to complete it. The passing score for DEX-450 exam is 65%, and the exam fee is $200.
Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Sample Questions (Q175-Q180):
NEW QUESTION # 175
A developer must create an Apex class, contactcontroller, that a Lightning component can use to search for Contact records. User of the Lightning component should only be able to search Contact records to which they have access. Which two will restrict the records correctly?
- A. public without sharing class ContactController
- B. public class ContactController
- C. public inherited sharing class ContactController
- D. public with sharing class ContactController
Answer: C,D
NEW QUESTION # 176
The Account object has a custom formula field,Level__c, that is defined as a Formula(Number) with two decimal places. Which three are valid assignments? Choose 3.
- A. Long myLevel = acct.Level__c;
- B. Decimal myLevel = acct.Level__c;
- C. Integer myLevel = acct.Level__c;
- D. Double myLevel = acct.Level__c;
- E. Object myLevel = acct.Level__c;
Answer: B,D,E
NEW QUESTION # 177
A business has a proprietary Order Management System (OMS) that creates orders from their website and fulfills the orders. When the order is created in the OMS, an integration also creates an order record in Salesforce and relates it to the contact as identified by the email on the order. As the order goes through different stages in the OMS, the integration also updates It in Salesforce. It is noticed that each update from the OMS creates a new order record in Salesforce.
Which two actions will prevent the duplicate order records from being created in Salesforce?
Choose 2 answers
- A. Ensure that the order number in the OMS is unique.
- B. Write a before trigger on the order object to delete any duplicates.
- C. Use the order number from the OMS as an external ID.
- D. Use the email on the contact record as an external ID.
Answer: A,B
NEW QUESTION # 178
Refer to the following Apex code:
What is the value of x when it is written to the debug log?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION # 179
Universal Containers implemented a private sharing model for the Account object. A custom Account search tool was developed with Apex to help sales representatives find accounts that match multiple criteria they specify. Since its release, users of the tool report they can see Accounts they do not own.
What should the developer use to enforce sharing permissions for the currently logged in user while using the custom search tool?
- A. Use the UserInfo Apex class to filter all SOQL queries to returned records owned by the logged-in user.
- B. Use the without sharing keyword on the class declaration.
- C. Use the schema describe calls to determine if the logged-in user has access to the Account object,
- D. Use the with sharing keyword on the class declaration.
Answer: D
Explanation:
Since users can see Accounts they do not own in a private sharing model, the custom Apex code is likely not enforcing sharing rules. To enforce sharing permissions, the developer should use the with sharing keyword on the class declaration.
with sharing Keyword: This enforces the sharing rules of the current user, ensuring that the Apex class respects the user's record-level access permissions.
"Use the with sharing keyword when declaring a class to enforce the sharing rules that apply to the current user."
- Apex Developer Guide: Using the with sharing or without sharing Keywords Private Sharing Model: In a private sharing model, users should only see records they own or have been shared with them.
"Private: Only the record owner and users above that role in the hierarchy can view, edit, and report on those records."
- Salesforce Help: Organization-Wide Sharing Defaults
Why Not Other Options:
A . Use the schema describe calls to determine if the logged-in user has access to the Account object: Schema describe calls check for object-level access, not record-level sharing.
"Schema describe information provides metadata about object and field properties, but it doesn't enforce record-level access."
- Apex Developer Guide: Schema Namespace
C . Use the without sharing keyword on the class declaration: This runs the class in system context, ignoring sharing rules, which is the opposite of what's needed.
"Classes declared as without sharing or those that do not specify a keyword default to without sharing and don't enforce the sharing rules of the current user."
- Apex Developer Guide: Using the with sharing or without sharing Keywords D . Use the UserInfo Apex class to filter all SOQL queries to return records owned by the logged-in user: Manually filtering queries is error-prone and not a best practice when with sharing can enforce sharing automatically.
"Avoid hardcoding user or profile IDs and using the UserInfo class to enforce security. Instead, use declarative security features."
- Apex Developer Guide: Enforcing Security in Apex
Conclusion: By declaring the class with with sharing, the Apex code respects the user's sharing rules, ensuring that users only see Accounts they have access to.
NEW QUESTION # 180
......
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