Best Salesforce DEX-450 Exam Practice Material Updated on Sep 15, 2023
New DEX-450 Actual Exam Dumps, Salesforce Practice Test
Salesforce DEX-450 exam is a certification exam that is administered by Salesforce. DEX-450 exam consists of 60 multiple-choice questions, and candidates have 105 minutes to complete the exam. DEX-450 exam is available in multiple languages and can be taken online or in-person at a testing center. DEX-450 exam fee is $200 USD, and candidates who pass the exam will receive a certification from Salesforce.
NEW QUESTION # 42
Which code segment can be used to control when the dowork() method is called?
- A. If(Trigger.isInsert) dowork();
- B. If(Trigger.isRunning) dowork();
- C. For (Trigger.isInsert t: Trigger.new) { dowork(); }
- D. For (Trigger.isRunning t: Trigger.new) { dowork(); }
Answer: A
NEW QUESTION # 43
A company wants to create an employee rating program that allows employees to rate each other. An employee's average rating must be displayed on the employee record. Employees must be able to create rating records, but are not allowed to create employee records. Which two actions should a developer take to accomplish this task? choose 2 answers
- A. Create a master-detail relanstionship between the rating and employee object
- B. Create a trigger on the rating object that updates a field on the employee object
- C. Create a roll-up sumary field on the employee and use avg to calculate the average rating score
- D. Create a lookup realntionship beteween the rating and employee object
Answer: A,C
NEW QUESTION # 44
A developer needs to confirm that an Account trigger is working correctly without changing the organization's data.What would the developer do to test the Account trigger?
- A. Use the New button on the Salesforce Accounts Tab to create a new Account record.
- B. Use the Open Execute Anonymous feature on the Developer Console to run an 'insert Account' DML statement.
- C. Use Deply from the Force.com IDE to deploy an 'insert Account' Apex class.
- D. Use the Test menu on the developer Console to run all test classes for the account trigger.
Answer: D
NEW QUESTION # 45
What is a correct pattern to follow when programming in Apex on a Multi-tenant platform?
- A. Queries select the fewest fields and records possible to avoid exceeding governor limits.
- B. Apex code is created in a separate environment from schema to reduce deployment errors.
- C. DML is performed on one record at a time to avoid possible data concurrency issues.
- D. Apex classes use the ''with sharing" keyword to prevent access from other server tenants.
Answer: A
NEW QUESTION # 46
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 Account object does not allow changing a field type for a custom field.
- 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 organization wide default for the Vendor object is Public Read/Write.
Answer: C
NEW QUESTION # 47
A developer has a block of code that omits any statements that indicate whether the code block should execute with or without sharing. What will automatically obey the organization-wide defaults and sharing settings for the user who executes the code in the Salesforce organization?
- A. HTTP Callouts
- B. Apex Controllers
- C. Anonymous Blocks
- D. Apex Triggers
Answer: C
NEW QUESTION # 48
Which statement is true about a hierarchical relationship as it pertains to user records?
- A. It uses a junction object and master-detail relationship to allow many user records to be related to many other user records
- B. It uses a master-detail relationship to allow one user record to be related to another user record
- C. It uses a special lookup relationship to allow one user record to be related to another user record
- D. It uses a junction object and lookup relationships to allow many user records to be related to many other user records
Answer: C
NEW QUESTION # 49
The following Apex method is part of the ContactService class that is called from a trigger: public static void setBusinessUnitToEMEA(Contact thisContact){ thisContact.Business_Unit__c = "EMEA" ; update thisContact; } How should the developer modify the code to ensure best practice are met?
- A. Public static void setBusinessUnitToEMEA(List<Contact> contacts){
for(Contact thisContact : contacts){
thisContact.Business_Unit__c = 'EMEA' ;
update contacts[0];
}
} - B. Public static void setBusinessUnitToEMEA(List<Contact> contacts){
for(Contact thisContact : contacts) {
thisContact.Business_Unit__c = 'EMEA' ;
}
update contacts;
} - C. Public static void setBusinessUnitToEMEA(Contact thisContact){
List<Contact> contacts = new List<Contact>();
contacts.add(thisContact.Business_Unit__c = 'EMEA');
update contacts;
} - D. Public void setBusinessUnitToEMEA(List<Contact> contatcs){
contacts[0].Business_Unit__c = 'EMEA' ;
update contacts[0];
}
Answer: C
NEW QUESTION # 50
A developer needs to create a custom button for the Account object that, when clicked, will perform a series of calculation and redirect the user to a custom visualforce page.
Which three attributes need to be defined with values in the <apex:page> tag to accomplish this?
Choose 3 answers
- A. standard Controller
- B. readOnly
- C. extensions
- D. Action
- E. renderAs
Answer: A,D,E
NEW QUESTION # 51
Which type of information is provided by the Checkpoints tab in the Developer Console? (Choose 2)
- A. Debug Statement
- B. Time
- C. Namespace
- D. Exception
Answer: B,C
NEW QUESTION # 52
Application Events follow the traditional publish-subscribe model. Which method is used to fire an event?
- A. FireEvent()
- B. RegisterEvent()
- C. Fire()
- D. Emit()
Answer: C
NEW QUESTION # 53
What can be developed using the Lightning Component framework?
- A. Dynamic web sites
- B. Salesforce integrations
- C. Hosted web applications
- D. Single-page web apps
Answer: D
NEW QUESTION # 54
A developer needs to implement a custom SOAP Web Service that is used by an external Web Application. The developer chooses to Include helper methods that are not used by the Web Application In the Implementation of the Web Service Class.
Which code segment shows the correct declaration of the class and methods?
- A.
- B.
- C.
- D.
Answer: B
NEW QUESTION # 55
What are two ways a developer can get the status of an enquered job for a class that queueable interface? Choose 2 answers
- A. View the apex Jobs page
- B. View the apex status Page
- C. Query the AsyncApexJobe object
- D. View the apex flex Queue
Answer: C,D
NEW QUESTION # 56
What is a benefit of developing applications in a multi-tenant environment?
- A. Access to predefined computing resources
- B. Enforced best practices for development
- C. Default out-of-the-box configuration
- D. Unlimited processing power and memory
Answer: C
NEW QUESTION # 57
An Apex method, getAccounts, that returns a List of Accounts given a searchTerm, is available for Lightning Web components to use.
What is the correct definition of a Lightning Web component property that uses the getAccounts method?
- A. Option B
- B. Option A
- C. Option C
- D. Option D
Answer: B
NEW QUESTION # 58
Which three operations affect the number of times a trigger can fire?
Choose 3 answers
- A. Email messages
- B. Roll-Up Summary fields
- C. Workflow Rules
- D. Process Flows
- E. Criteria-based Sharing calculations
Answer: B,C,D
NEW QUESTION # 59
How can a developer use a Set<Id> to limit the number of records returned by a SOQL query?
- A. Pass the query results as an argument in a reference to the Set.containsAll() method.
- B. Pass the Set as an argument in a reference to the Database.query() method
- C. Reference the Set in the WHERE clause of the query
- D. Reference the Set in the LIMIT clause of the query
Answer: C
NEW QUESTION # 60
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