Get Ready with DEX-450 Exam Dumps (2024)
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NEW QUESTION # 27
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. Integer myLevel = acct.Level__c;
- B. Decimal myLevel = acct.Level__c;
- C. Long myLevel = acct.Level__c;
- D. Object myLevel = acct.Level__c;
- E. Double myLevel = acct.Level__c;
Answer: B,D,E
NEW QUESTION # 28
Universal Containers decides to use exclusively declarative development to build out a new Salesforce application. Which three options should be used to build out the database layer for the application? Choose 3 answers
- A. Custom Objects and Fields
- B. Relationships
- C. Triggers
- D. Flow
- E. Roll-Up Summaries
Answer: A,B,E
NEW QUESTION # 29
An org has an existing Flow that creates an Opportunity with an Update Records element. A developer update the Flow to also create a Contact and store the created Contact's ID on the Opportunity.
Which update should the developer make in the Flow?
- A. Add a new Quick Action element(of type Create).
- B. Add a new Get Records element.
- C. Add a new Update Records element.
- D. Add a new Create Records element.
Answer: D
NEW QUESTION # 30
A developer created a trigger on a custom object. This custom object also has some dependent pick lists.
According to the order of execution rules, which step happens first?
- A. JavaScript validation is run In the browser.
- B. System validation is run for maximum field lengths.
- C. Old values are overwritten with the new record values,
- D. The original record is loaded from the database.
Answer: A
NEW QUESTION # 31
Which two condition cause workflow rules to fire? Choose 2 answers
- A. Updating record using bulk API
- B. Changing territory assignments of accounts and opportunities
- C. An Apex batch process that changes field values
- D. Converting leads to person account
Answer: A,C
NEW QUESTION # 32
How can a developer use a Set<Id> to limit the number of records returned by a SOQL query?
- A. Pass the Set as an argument in a reference to the Database.query() method
- B. Reference the Set in the WHERE clause of the query
- C. Pass the query results as an argument in a reference to the Set.containsAll() method.
- D. Reference the Set in the LIMIT clause of the query
Answer: B
NEW QUESTION # 33
A developer is writing tests for a class and needs to insert records to validate functionality.
Which annotation method should be used to create record for every method in the test class?
- A. @TestSetup
- B. @StartTest
- C. @FreTest
- D. @isTest (SeeAllData-true)
Answer: A
NEW QUESTION # 34
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. ExtensionB save()
- B. Standard controller save()
- C. ExtensionA save()
- D. Runtime error will be generated
Answer: D
NEW QUESTION # 35
Which code in a Visualforce page and/or controller might present a security vulnerability?
- A. <apex:outputField escape="false" value="{!ctrl.userInput}" />
- B. <apex:outputText value="{!£CurrentPage.parameters.userInput}" />
- C. <apex:outputText escape="false" value=" {!$CurrentPage.parameters.userInput}" />
- D. <apex:outputField value="{!ctrl.userInput}" />
Answer: C
NEW QUESTION # 36
How can a developer retrieve all Opportunity record type labels to populate a list collection?Choose 2 answers
- A. Obtain describe object results for the Opportunity objct.
- B. Write a SOQL for loop that iterates on the RecordType object.
- C. Use the global variable $RecordType and extract a list from the map.
- D. Write a for loop that extracts values from the Opportunity.RecordType.Name field.
Answer: A,B
NEW QUESTION # 37
A developer identifies the following triggers on the Expense __c object:
The triggers process before delete, before insert, and before update events respectively.
Which two techniques should the developer implement to ensure trigger best practices are followed?
Choose 2 answers
- A. Maintain all three triggers on the Expense__c object, but move the Apex logic out of the trigger definition.
- B. Unify all three triggers in a single trigger on the Expense__c object that includes all events.
- C. Create helper classes to execute the appropriate logic when a record is saved.
- D. Unify the before insert and before update triggers and use Flow for the delete action.
Answer: A,C
NEW QUESTION # 38
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(Contact thisContact){
List<Contact> contacts = new List<Contact>();
contacts.add(thisContact.Business_Unit__c = 'EMEA');
update contacts;
} - B. Public void setBusinessUnitToEMEA(List<Contact> contatcs){
contacts[0].Business_Unit__c = 'EMEA' ;
update contacts[0];
} - C. Public static void setBusinessUnitToEMEA(List<Contact> contacts){
for(Contact thisContact : contacts) {
thisContact.Business_Unit__c = 'EMEA' ;
}
update contacts;
} - D. Public static void setBusinessUnitToEMEA(List<Contact> contacts){
for(Contact thisContact : contacts){
thisContact.Business_Unit__c = 'EMEA' ;
update contacts[0];
}
}
Answer: A
NEW QUESTION # 39
A developer needs to create a Visualforce page that will override the standard Account edit button. The page will be used to validate the account's address using a SOQL query. The page will also allow the user to make edits to the address. Where would the developer write the Account address verification logic?
- A. In a Standard Controller.
- B. In a Standard Extension.
- C. In a Custom Controller.
- D. In a Controller Extension.
Answer: D
NEW QUESTION # 40
What are three considerations when using the @InvocableMethod annotation in Apex?
Choose 3 answers
- A. A method using the @InvocableMethod annotation can be declared as Public or Global. (Missed)
- B. A method using the @InvocableMethod annotation can have multiple input parameters.
- C. A method using the @InvocableMethod annotation must define a return value.
- D. Only one method using the @InvocableMethod annotqation can be defined per Apex class. (Missed)
- E. A method using the @InvocableMethod annotation must be declared as static (Missed)
Answer: A,D,E
NEW QUESTION # 41
What is an accurate constructor for a custom controller named "MyController"?
- A. public MyController (ApexPages.StandardController stdController) { account = (Account) stdController.getRecord(); }
- B. public MyController () { account = new Account () ; }
- C. public MyController (List objects) { accounts = (List ) objects; }
- D. public MyController (sObject obj) { account = (Account) obj; }
Answer: B
NEW QUESTION # 42
Which two statements are accurate regarding Apex classes and interfaces?
Choose 2 answers
- A. A top-level class can only have one inner class level.
- B. Inner classes are public by default.
- C. Classes are final by default.
- D. Interface methods are public by default.
Answer: A,D
NEW QUESTION # 43
When a user edits the Postal Code on an Account, a custom Account text field named "Timezone" must be update based on the values in a PostalCodeToTimezone__c custom object. How should a developer implement this feature?
- A. Build an Account Assignment Rule.
- B. Build an Account Workflow Rule.
- C. Build an account Approval Process
- D. Build an Account custom Trigger.
Answer: D
NEW QUESTION # 44
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Salesforce DEX-450 exam is designed for professionals who want to validate their knowledge and skills in programmatic development using Apex and Visualforce in Lightning Experience. DEX-450 exam tests the candidate's ability to develop and customize business logic and user interfaces using Apex and Visualforce in the Lightning Experience. Passing DEX-450 exam demonstrates that the candidate has the expertise to build custom applications on the Salesforce platform, leveraging the power of Apex and Visualforce.
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