Free Sample Questions to Practice DEX-450 Certification Test Engine [Nov-2023]
2023 Valid DEX-450 Real Exam Questions, practice Salesforce Developer
Salesforce is a cloud-based customer relationship management (CRM) software that helps businesses manage their interactions with customers and potential leads. It is a popular platform that is used by businesses of all sizes. Salesforce offers a range of certifications that help professionals validate their skills and knowledge in different areas of the platform. One such certification is the Salesforce DEX-450 certification exam.
NEW QUESTION # 68
Application Events follow the traditional publish-subscribe model. Which method is used to fire an event?
- A. FireEvent()
- B. Emit()
- C. RegisterEvent()
- D. Fire()
Answer: D
NEW QUESTION # 69
A development team wants to use a deployment script lo automatically deploy lo a sandbox during their development cycles.
Which two tools can they use to run a script that deploys to a sandbox?
Choose 2 answers
- A. SFDX CLI
- B. Change Sets
- C. Developer Console
- D. VS Code
Answer: A,D
NEW QUESTION # 70
Assuming that 'name; is a String obtained by an <apex:inputText> tag on a Visualforce page. Which two SOQL queries performed are safe from SOQL injections? Choose 2 answers
- A. String query = 'SELECT Id FROM Account WHERE Name LIKE \''%' + name.noQuotes() + '%\''; List<Account> results = Database.query(query);
- B. String query = 'SELECT Id FROM Account WHERE Name LIKE \''%' + String.escapeSingleQuotes(name) + '%\''; List<Account> results = Database.query(query);
- C. String query = 'SELECT Id FROM Account WHERE Name LIKE \''%' + name + '%\''; List<Account> results = Database.query(query);
- D. String query = '%' + name + '%';
List<Account> results = [SELECT Id FROM Account WHERE Name LIKE :query];
Answer: B,D
NEW QUESTION # 71
Which two statements are true about using the @testSetup annotation in an Apex test class?
Choose 2 answers
- A. Test data is inserted once for all test methods in a class.
- B. Qo The @testSetup annotation is not supported when the GisTest(SeeAllData=True) annotation is used.
- C. Records created in the test setup method cannot be updated in individual test methods.
- D. A method defined with the @testSetup annotation executes once for each test method in the test class and counts towards system limits.
Answer: B,D
NEW QUESTION # 72
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. Add with sharing to the custom controller.
- D. Change theAccount attribute to public.
Answer: B
Explanation:
https://developer.salesforce.com/docs/atlas.en-us.pages.meta/pages/pages_controller_custom.htm
NEW QUESTION # 73
What is a valid Apex statement?
- A. Integer w, x, y = 123, z = 'abc',
- B. Map conMap = (SELECT Name FROM Contact);
- C. Private static constant Double rate = 775;
- D. Account[] acctList = new List{new Account()}
Answer: D
NEW QUESTION # 74
A developer needs to join data received from an integration with an external system with parent records in Salesforce. The data set does not contain the Salesforce IDs of the parent records, but it does have a foreign key attribute that can be used to identify the parent.
Which action will allow the developer to relate records in the data model without knowing the Salesforce ID?
- A. Create and populate a custom field on the parent object marked as Unique
- B. Create a custom field on the child object of type External Relationship.
- C. Create and populate a custom field on the parent object marked as an External ID.
- D. Create a custom field on the child object of type Foreign Key
Answer: C
NEW QUESTION # 75
Universal Containers has created a unique process for tracking container repairs. A custom field, status__c, has been created within the container__c custom object. A developer is tasked with sending notifications to multiple external systems every time the value of the status__picklist changes.
Which two tools should the developer use to meet the business requirement and ensure low maintenance of the solution?
Choose 2 answers
- A. Platform event
- B. Apex callouts
- C. Record-Triggered flow
- D. Apex trigger
Answer: A,B
NEW QUESTION # 76
Where can a developer identify the time taken by each process in a transaction using Developer Console log inspector?
- A. Timeline tab under Execution Overview panel
- B. Execution Tree tab under Stack Tree panel
- C. Performance Tree tab under Stack Tree panel
- D. Save Order tab under Execution Overview panel
Answer: A
NEW QUESTION # 77
Which one do you like?
What should a developer consider for an environment that has over 10,000 Case records?
- A. The transaction will fail due to exceeding the governor limit.
- B. The try/catch block will handle any DML exceptions thrown.
- C. The transaction will succeed and changes will be committed.
- D. The try/catch block will handle exceptions thrown by governor limits.
Answer: A
NEW QUESTION # 78
What is the data type returned by the following SOSL search? {FIND 'Acme*' in name fields returning account,opportunity};
- A. Map<sObject,sObject>
- B. Map<Id,sObject>
- C. List<List<sObject>>
- D. List<List<Account>,List<Opportunity>
Answer: C
NEW QUESTION # 79
From which two locations can a developer determine the overall code coverage for a sandbox? Choose two answers
- A. The Test Suite Run panel the Developer Console
- B. The Apex Test Execution page
- C. The Test Tab of the Developer Console
- D. The Apex classes setup page
Answer: C,D
NEW QUESTION # 80
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. Relationships
- B. Flow
- C. Roll-Up Summaries
- D. Triggers
- E. Custom Objects and Fields
Answer: A,B,C
NEW QUESTION # 81
A Salesforce Administrator is creating a record-triggered flow. When certain criteria are met, the flow must call an Apex method to execute complex validation involving several types of objects.
When creating the Apex method, which annotation should a developer use to ensure the method Can be used within the flow?
- A. @RemoteAction
- B. @future
- C. @AuraEnaled
- D. @InvocableMethod
Answer: D
NEW QUESTION # 82
A developer wants to display all of the available record types for a Case object. The developer also wants to display the picklist values for the Case.Status field. The Case object and the Case Status field are on a custom visualforce page.
Which action can the developer perform to get the record types and picklist values in the controller? Choose 2 answers
- A. Use Schema.PicklistEntry returned by Case Status getDescribe().getPicklistValues().
- B. Use Schema.RecordTypeinfo returned by Case.SObjectType getDescribe().getRecordTypelnfos()
- C. Use SOQL to query Case records in the org to get all the RecordType values available for Case.
- D. Use SOQL to query Case records in the org to get all value for the Status picklist field.
Answer: A,B
NEW QUESTION # 83
A developer of Universal Containers is tasked with implementing a new Salesforce application that must be able to by their company's Salesforce administrator.
Which three should be considered for building out the business logic layer of the application? Choose 3 answers
- A. Process Builder
- B. validation Rules
- C. Scheduled Jobs
- D. Invocable Actions
- E. Workflows
Answer: A,B,E
NEW QUESTION # 84
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Passing the Salesforce DEX-450 exam can open up new career opportunities for developers in the Salesforce ecosystem. Certified developers can work as Salesforce developers, technical architects, or consultants, and help organizations build custom solutions that meet their unique business needs. Additionally, certified developers can also earn higher salaries compared to non-certified developers.
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