Share Latest Jul-2023 TVB-450 DUMP with 151 Questions and Answers
PDF Dumps 2023 Exam Questions with Practice Test
Salesforce TVB-450, also known as the Trailhead Virtual Bootcamp for Platform Developer I Exam, is a certification exam designed for individuals aspiring to become Salesforce Platform Developer I professionals. TVB-450 exam is one of the most in-demand certifications in the Salesforce ecosystem, as it demonstrates a strong understanding of the Salesforce platform and its development capabilities.
To take the Salesforce TVB-450 Exam, candidates must have a solid understanding of the Salesforce platform and its various components. They should also have experience with Apex programming language and be familiar with Visualforce markup language. TVB-450 exam is designed to test candidates' ability to design and develop custom applications using the Salesforce platform, as well as their understanding of best practices and standards for Salesforce development. Overall, the Salesforce TVB-450 Exam is a valuable certification for anyone looking to demonstrate their expertise in Salesforce development and advance their career in this field.
NEW QUESTION # 68
Universal Containers (UC) uses a custom object called Vendor. The Vendor custom object has a Master-Detail relationship with the standard Account object. Based on some internal discussion, the UC administrator tried to change the Master-Detail relationship to a Lookup relationship but was not able to do so. What is a possible reason that this change was not permitted?
- A. The Vendor object must use a Master-Detail field for reporting.
- B. The Account records contain Vendor roll-up summary fields.
- C. The Vendor records have existing values in the Account object.
- D. The Account object is included on a workflow on the Vendor object.
Answer: B
NEW QUESTION # 69
Universal Containers (UC) uses a custom object called Vendor. The Vendor custom object has a master-detail relationship with the standard Account object.
Based on some internal discussions, the UC administrator tried to change the master-detail relationship to a lookup relationship, but was not able to do so.
What is a possible reason that this change was not permitted?
- A. The organization wide default for the Vendor object is Public Read/Write.
- B. Some of the Vendor records have null for the Account field.
- C. The Account object has a roll-up summary field on the Vendor object.
- D. The Account object does not allow changing a field type for a custom field.
Answer: C
NEW QUESTION # 70
A developer created a weather app that contains multiple Lightning web components.
One of the components, called Toggle, has a toggle for Fahrenheit or Celsius units. Another component, called Temperature, displays the current temperature in the unit selected in the Toggle component When a user toggles from Fahrenheit to Celsius or vice versa in the Toggle component, the information must be sent to the Temperature component so the temperature can be converted and displayed.
What is the recommend way to accomplish this?
- A. Use Lightning Message Service to communicate between the component.
- B. Create a custom event to handle the communicate between the components.
- C. The Toggle component should call a method in the Temperature component.
- D. Use Lightning Message Service to communicate between the components.
Answer: B
NEW QUESTION # 71
A developer has two custom controller extensions where each has a save() method.
Which save() method will be called for the following Visualforce page?
<apex:page standardController ="Account", extensions="ExtensionA, ExtensionB">
<apex:commandButton action ="{!save}" value="Save"/>
</apex:page>
- A. Standard controller save()
- B. ExtensionA save()
- C. ExtensionB save()
- D. Runtime error will be generated
Answer: D
NEW QUESTION # 72
Which Lightning code segment should be written to declare dependencies on a Lightning component, c:accountList, that is used in a Visualforce page?
A)
B)
C)
D)
- A. Option C
- B. Option B
- C. Option D
- D. Option A
Answer: D
NEW QUESTION # 73
A developer is asked to create a Visualforce page for Opportunities that allows users to save or merge the current record.
Which approach should the developer to meet this requirement?
- A. Visualforce page JavaScript
- B. A custom controller extension
- C. A custom controller
- D. Standard controller methods
Answer: C
NEW QUESTION # 74
A developer wrote an Apex method to update a list of Contacts and wants to make it available for use by Lightning web components.
Which annotation should the developer add to the Apex method to achieve this?
- A.
- B.
- C.
- D.
Answer: B
NEW QUESTION # 75
A developer creates a custom exception as shown below:
What are two ways the developer can fire the exception in Apex? Choose 2 answers
- A. Throw new ParityException (parity does not match);
- B. New ParityException (parity does not match);
- C. New ParityException( );
- D. Throw new parityException ( );
Answer: A,D
NEW QUESTION # 76
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: D
NEW QUESTION # 77
code below deserializes input into a list of Accounts.
Which code modification should be made to insert the Accounts so that field-level security is respected?
- A. 05: SobjectAcessDecision sd= Security,stripINaccessible(AccessType,CREATABLE,
- B. 01: Public with sharing class AcctCreator
- C. 05: If (SobjectType.Account, isCreatable())
- D. 05: Accts = database.stripinaccesible (accts, Database. CREATEABLE);
Answer: B
NEW QUESTION # 78
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 HTTPCalloutMock.
- D. Write a class that extends WebserviceMock
Answer: A
NEW QUESTION # 79
A credit card company needs to Implement the functionality for a service agent to process damaged credit cards. When the customers call In, the service agent must gather many pieces of information Is tasked to Implement this functionality.
What should the developer use to satisfy this requirement In the most efficient manner?
- A. Lightning Component
- B. Apex Trigger
- C. Flow Builder
- D. Approval Process
Answer: B
NEW QUESTION # 80
Which two are phases in the Aura application event propagation framework? Choose 2 answers
- A. Bubble
- B. Emit
- C. Default
- D. Control
Answer: A,C
NEW QUESTION # 81
A developer created a Visualforce page and custom controller to display the account type field as shown below. Custom controller code: public class customCtrlr{ private Account theAccount; public String actType; public customCtrlr() { theAccount = [SELECT Id, Type FROM Account WHERE Id = :apexPages.currentPage().getParameters().get('id')]; actType = theAccount.Type; } } Visualforce page snippet: The Account Type is {!actType} The value of the account type field is not being displayed correctly on the page. Assuming the custom controller is property referenced on the Visualforce page, what should the developer do to correct the problem?
- A. Convert theAccount.Type to a String.
- B. Add a getter method for the actType attribute.
- C. Change theAccount attribute to public.
- D. Add with sharing to the custom controller.
Answer: B
Explanation:
https://developer.salesforce.com/docs/atlas.en-us.pages.meta/pages/pages_controller_custom.htm
NEW QUESTION # 82
How can a developer implement this feature?
- A. Build an account assignment rule.
- B. Build a workflow rule.
- C. Build a flow with Flow Builder.
- D. Build an account approval process.
Answer: C
NEW QUESTION # 83
What is a key difference between a Master-Detail Relationship and a Lookup Relationship?
- A. When a record of a master object in a Master-Detail Relationship is deleted, the detail records are kept and not deleted.
- B. When a record of a master object in a Lookup Relationship is deleted, the detail records are also deleted.
- C. A Lookup Relationship is a required field on an object.
- D. A Master-Detail Relationship detail record inherits the sharing and security of its master record.
Answer: D
NEW QUESTION # 84
An Approval Process is defined in the Expense_Item__c. A business rule dictates that whenever a user changes the Status to 'Submitted' on an Expense_Report__c record, all the Expense_Item__c records related to the expense report must enter the approval process individually. Which approach should be used to ensure the business requirement is met?
- A. Create a Process Builder on Expense_Report__c to mark the related Expense_Item__c as submittable and trigger on Expense_item__c to submit the records for approval.
- B. Create a Process Builder on Expense_Report__c with an 'Apex' action type to submit all related Expense_Item__c records when the criteria is met.
- C. Create a Process Builder on Expense_Report__c with a 'Submit for Approval' action type to submit all related Expense_Item__c records when the criteria is met.
- D. Create two Process Builder, one on Expense_Report__c to mark the related Expense_Item__c as submittable and the second on Expense_Item__c to submit the records for approval.
Answer: D
NEW QUESTION # 85
Given the following block code: try{ List <Accounts> retrievedRecords = [SELECT Id FROM Account WHERE Website = null]; }catch(Exception e){ //manage exception logic } What should a developer do to ensure the code execution is disrupted if the retrievedRecordslist remains empty after the SOQL query?
- A. Check the state of the retrieveRecords variable and throw a custom exception if the variable is empty.
- B. Check the state of the retrievedRecords variable and access the first element of the list if the variable is empty.
- C. Check the state of the retrievedRecords variable and use System.assert(false) if the variable is empty
- D. Replace the retrievedRecords variable declaration from ftount to a single Account.
Answer: C
NEW QUESTION # 86
A developer has requirement to write Apex code to update a large number of account records on a nightly basis. The system administrator needs to be able to schedule the class to run after business hours on an as-needed basis.
Which class definition should be used to successfully implement this requirement?
- A. Global inherited sharing class ProcessAccountProcessor implements
Database. Batchable<sObject> - B. Gloabal inherited sharing class processAccount Processor implements Database>Bachable<sObject> Schedulable.
- C. Global inherited sharing class ProcessAccountProcess Implements Queueable
- D. Global inherited sharing class ProcessAccount Process implements Queueable
Answer: C
NEW QUESTION # 87
For which three items can a trace flag be configured?
Choose 3 answers
- A. Process Builder
- B. Apex Class
- C. Visualforce
- D. Apex Trigger
- E. User
Answer: B,D,E
NEW QUESTION # 88
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