[2024] Get Top-Rated Salesforce DEX-450 Exam Dumps Now
Passing Key To Getting DEX-450 Certified Exam Engine PDF
To be eligible for the DEX-450 certification exam, candidates must have a solid understanding of both the Apex programming language and Visualforce, as well as experience working with Lightning Experience. They must also have a comprehensive understanding of the Salesforce platform and be able to design and develop custom applications that meet business requirements.
NEW QUESTION # 24
A developer wrote Apex code that calls out to an external system. How should a developer write the test to provide test coverage?
- A. Write a class that implements the HTTPCalloutMock interface.
- B. Write a class that implements the WebserviceMock interface.
- C. Write a class that extends WebserviceMock
- D. Write a class that extends HTTPCalloutMock.
Answer: A
NEW QUESTION # 25
Which three web technologies can be integrated into a Visualforce page? (Choose three.)
- A. Java
- B. PHP
- C. CSS
- D. JavaScript
- E. HTML
Answer: C,D,E
NEW QUESTION # 26
A company has a custom object named Region. Each account in salesforce can only be related to one region at a time, but this relationship is optional. Which type of relantionship should a developer use to relate an account to a region?
- A. Parent-child
- B. Master-detail
- C. Hierarchical
- D. Lookup
Answer: B
NEW QUESTION # 27
A developer must provide a custom user interface when users edit a Contact. Users must be able to use the interface in Salesforce Classic and Lightning Experience.
What should the developer do to provide the custom user interface?
- A. Override the Contact's Edit button with a Visualforce page in Salesforce Classic and a Lightning component in Lightning Experience.
- B. Override the Contact's Edit button with a Lightning component in Salesforce Classic and a Lightning component in Lightning Experience.
- C. Override the Contact's Edit button with a Lightning page in Salesforce Classic and a Visualforce page in Lightning Experience.
- D. Override the Contact's Edit button with a Visualforce page in Salesforce Classic and a Lightning page inLightning Experience.
Answer: A
NEW QUESTION # 28
How can a developer set up a debug log on a specific user?
- A. Ask the user for access to their account credentials, log in as the user and debug the issue.
- B. It is not possible to setup debug logs for users other than yourself.
- C. Set up a trace flag for the user, and define a logging level and time period for the trace.
- D. Create Apex code that logs code actions into a custom object.
Answer: C
NEW QUESTION # 29
What are three characteristics of static methods? (Choose three.)
- A. Allowed only in inner classes
- B. Allowed only in outer classes
- C. A static variable outside of the scope of an Apex transaction
- D. Initialized only when a class is loaded
- E. Excluded from the view state for a Visualforce page
Answer: B,D,E
NEW QUESTION # 30
Which scenario is invalid for execution by unit tests?
- A. Executing methods for negative test scenarios
- B. Loading test data in place of user input for Flows.
- C. Executing methods as different users.
- D. Loading the standard Pricebook ID using a system method
Answer: B
NEW QUESTION # 31
Consider the following code snippet:
Given the multi-tenant architecture of the Salesforce platform, what Is a best practice a developer should Implement and ensure successful execution of the method?
- A. Avoid executing queries without a limit clause.
- B. Avoid using variables as query filters.
- C. Avoid returning an empty List of records.
- D. Avoid performing queries inside for loops.
Answer: D
NEW QUESTION # 32
Which two queries can a developer use in a visualforce controller to protect against SOQL injection Vulnerabilities? Choose 2 answers
- A. String qryName = '%' + String.enforceSecurityChecks(name)+ '%'; String qryString = 'SELECT Id FROM Contact WHERE Name LIKE :qryNAme'; List queryResults = Database.query(qryString);
- B. String qryName = '%' + name '%'; String qryString = 'SELECT Id FROM Contact WHERE Name LIKE :qryNAme'; List queryResults = Database.query(qryString);
- C. String qryString = 'SELECT Id FROM Contact WHERE Name LIKE :qryNAme'; List queryResults = Database.query(qryString);
- D. String qryName = '%' + String.escpaeSingleQuotes(name)+ '%'; String qryString = 'SELECT Id FROM Contact WHERE Name LIKE :qryNAme'; List queryResults = Database.query(qryString);
Answer: A,C
NEW QUESTION # 33
An sObject named Application_c has a lookup relationship to another sObject named Position_c. Both Application _c and Position_c have a picklist field named Status_c.When the Status_c field on Position_c is updated, the Status_c field on Application_c needs to be populated automatically with the same value, and execute a workflow rule on Application_c.How can a developer accomplish this?
- A. By changing Application_c.Status_c into a roll -up summary field.
- B. By configuring a cross-object field update with a workflow.
- C. By using an Apex trigger with a DML operation.
- D. By changing Application_c.Status_c into a formula field.
Answer: C
NEW QUESTION # 34
A developer is implementing an Apex class for a financial system. Within the class, the variables 'creditAmount' and 'debtAmount' should not be able to change once a value is assigned. In which two ways can the developer declare the variables to ensure their value can only be assigned one time? Choose 2 answers
- A. Use the static keyword and assign its value in a static initializer.
- B. Use the final keyword and assign its value when declaring the variable.
- C. Use the static keyword and assign its value in the class constructor.
- D. Use the final keyword and assign its value in the class constructor.
Answer: B,D
NEW QUESTION # 35
Which two scenarios require an Apex method to be called imperatively from a Lightning web component?
Choose 2 answer
- A. Calling a method that makes a web service callout
- B. Calling a method with the click of a button
- C. Calling a method that is not annotated with cacheable-true
- D. Calling a method that is external to the main controller for the Lightning web component
Answer: C,D
NEW QUESTION # 36
What are two best practices when it comes to Lightning Web Component events?
- A. Use event.detail to communicate data to elements in the same shadow tree
- B. Use event.target to communicate data to elements that aren't in the same shadow tree.
- C. Use events configured with bubbles: false and composed:false.
- D. Use CustomEvent to pass data from a child to a parent component.
Answer: B,D
NEW QUESTION # 37
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?
- A. The API name of the field and the reference in the test class is changed.
- B. The API name of the field and the reference in the test class is updated.
- C. The API name of the field is changed, and a warning is issued to update the class.
- D. The API name is not changed and there are no other impacts.
Answer: C
NEW QUESTION # 38
Which three operations affect the number of times a trigger can fire?
Choose 3 answers
- A. Workflow Rules
- B. Roll-Up Summary fields
- C. Email messages
- D. Process Flows
- E. Criteria-based Sharing calculations
Answer: A,B,D
NEW QUESTION # 39
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Salesforce DEX-450 certification is recognized globally and is highly valued in the industry. It demonstrates that the certified professional has the knowledge and skills required to build custom applications on the Salesforce platform using Apex and Visualforce. Programmatic Development using Apex and Visualforce in Lightning Experience certification also demonstrates that the professional is committed to keeping up-to-date with the latest developments in the Salesforce platform.
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DEX-450 exam questions for practice in 2024 Updated 172 Questions: https://www.updatedumps.com/Salesforce/DEX-450-updated-exam-dumps.html
DEX-450 Exam Dumps Pass with Updated Tests Dumps: https://drive.google.com/open?id=1g_MUlX1cV9W3eXhntkttBXW63M5lMFjZ