DEX-450 Dumps Help You Study Objectives

1. A team of developers is working on a source-driven project that allows them to work independently, with many different org configurations.

Which type of Salesforce orgs should they use for their development?

2. Refer to the following Apex code:

Integer x=0;

do {

x=1;

x++;

} while (x< 1);

System.debug (x);

What is the value of x when it is written to the debug log?

3. Which three data types can a SOQL query return? Choose 3 answers

4. What are three considerations when using the @lnvocableMethod annotation in Apex? Choose 3 answers

5. In the following example, which sharing context will myMethod execute when it is invoked?

6. A developer wants to import 500 Opportunity records into a sandbox.

Why should the developer choose to use Data Loader instead of Data Import Wizard?

7. Management asked for opportunities to be automatically created for accounts with annual revenue greater than $1, 000,000.

A developer created the following trigger on the Account object to satisfy this requirement.





Users are able to update the account records via the UI and can see an opportunity created for high annual revenue accounts. However, when the administrator tries to upload a list of 179 accounts using Data Loader, it fails with system, Exception errors.

Which two actions should the developer take to fix the code segment shown above? Choose 2. answers

8. What are two benefits of using External IDs? Choose 2 answers

9. The values 'High', 'Medium', and 'Low' are identified as common values for multiple picklists across different objects.

What is an approach a developer can take to streamline maintenance of the picklists and their values, while also restricting the values to the ones mentioned above?

10. Universal Containers has a Visualforce page that displays a table of every Container__c being rented by a given Account. Recently this page is failing with a view state limit because some of the customers rent over 10,000 containers.

What should a developer change about the Visualforce page to help with the page load errors?

11. What should a developer use to obtain the Id and Name of all the Leads, Accounts, and Contacts that have the company name "Universal Containers?

12. The sales management team at Universal Containers requires that the Lead Source field of the Lead record be populated when a Lead is converted.

What should be done to ensure that a user populates the Lead Source field prior to converting a Lead?

13. A development team wants to use a deployment script to automatically deploy to a sandbox during their development cycles.

Which two tools can they use to run a script that deploys to a sandbox? Choose 2 answers

14. A developer needs to prevent the creation of Request _c records when certain conditions exist in the system. A BequestLogic class exists that checks the conditions.

What is the correct implementation?

A)





B)





C)





D)

15. Universal Containers (UC) uses out-of-the-box order management, that has a Master-Detail relationship between Order and Order Line Item.

UC stores the availability date on each Order Line Item and Orders are only shipped when all of the Order Line Items are available.

Which method should be used to calculate the estimated ship date for an Order?

16. A developer has a Visualforce page and custom controller to save Account records. The developer wants to display any validation rule violations to the user.

How can the developer make sure that validation rule violations are displayed?

17. A developer is integrating with a legacy on-premise SQL database.

What should the developer use to ensure the data being integrated is matched to the right records in Salesforce?

18. A developer is tasked to perform a security review of the ContactSearch Apex class that exists in the system. Within the class, the developer identifies the following method as a security threat: ist performSearch (String lastName} [

return Database.query('SELECT Id, FirstName, LastName FROM Contact WHERE LastName Like s'+lastName+'s'")?;

What are two ways the developer can update the method to prevent a SOQL injection attack? Choose 2 answers

19. The Account object in an organization has a master-detail relationship to a child object called Branch.

The following automations exist:

* Roll-up summary fields

* Custom validation rules

* Duplicate rules

developer created a trigger on the Account object.

Which two things should the developer consider while testing the trigger code? Choose 2 answers

A. Rollup summary fields can cause the parent record to go through Save.

B. Duplicate rules are executed once all DML operations commit to the database.

C. The trigger may fire multiple times during a transaction.

D. The validation rules will cause the trigger to fire again.

20. Universal Containers (UC) is developing a process for their sales teams that requires all sales reps to go through a set of scripted steps with each new customer they create.

In the first step of collecting information, UC's ERP system must be checked via a REST endpoint to see if the customer exists. If the customer exists, the data must be presented to the sales rep in Salesforce.

Which two should a developer implement to satisfy the requirements?

Choose 2 answers

21. What does the Lightning Component framework provide to developers?

22. A developer creates a custom exception as shown below:

public class ParityException extends Exception { }

What are two ways the developer can fire the exception in Apex?

23. Which Lightning Web Component custom event property settings enable the event to bubble up the containment hierarchy and cross the Shadow DOM boundary?

24. The value of the account type field is not being displayed correctly on the page.

Assuming the custom controller is properly referenced on the Visualforce page, what should the developer do to correct the problem?

25. Provide question feedback here (optional):





Based on this code, what is the value of x?

26. Which scenario is valid for execution by unit tests?

27. A software company is using Salesforce to track the companies they sell their software to in the Account object. They also use Salesforce to track bugs in their software with a custom object, Bug__c.

As part of a process improvement initiative, they want to be able to report on which companies have reported which bugs. Each company should be able to report multiple bugs and bugs can also be reported by multiple companies.

What is needed to allow this reporting?

28. What are two ways a developer can get the status of an enqueued job for a class that implements the

queueable interface? Choose 2 answers

29. Which action causes a before trigger to fire by default for Accounts?

30. A lead developer creates an Apex interface called Laptop.

Consider the following code snippet:

public class SilverLaptop{

//code implementation

How can a developer use the Laptop interface within the silverLaptop class?

A)





B)





C)





D)

31. A developer wants to get access to the standard price book in the org while writing a test class that covers an OpportunityLineltem trigger.

Which method allows access to the price book?

32. An org has an existing flow that edits an Opportunity with an Update Records element. A developer must update the flow to also create a Contact and store the created Contact’s ID on the Opportunity.

Which update must the developer make in the flow?

33. If Apex code executes inside the execute() method of an Apex class when implementing the Batchable interface, which two statements are true regarding governor limits? Choose 2 answers

34. As part of new feature development, a developer is asked to build a responsive application capable of responding to touch events, that will be executed on stateful clients.

Which two technologies are built on a framework that fully supports the business requirement? Choose 2 answers

35. The following code snippet is executed by a Lightning web component in an environment with more than 2,000 lead records:





Which governor limit will likely be exceeded within the Apex transaction?

36. A developer creates a new Apex trigger with a helper class, and writes a test class that only exercises 95% coverage of the new Apex helper class.

Change Set deployment to production fails with the test coverage warning:

"Test coverage of selected Apex Trigger is 0%, at least 1% test coverage is required."

What should the developer do to successfully deploy the new Apex trigger and helper class?

37. Which statement describes the execution order when triggers are associated to the same object and event?

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 practices are met?

A)





B)





C)





D)

39. Which three Salesforce resources can be accessed from a Lightning web component? Choose 3 answers

40. A developer is creating a page that allows users to create multiple Opportunities. The developer is asked to verify the current user's default Opportunity record type, and set certain default values based on the record type before inserting the record.

How can the developer find the current user's default record type?

41. What are three characteristics of change set deployments? Choose 3 answers Sending a change set between two orgs requires a deployment connection.

A. Change sets can deploy custom settings data.

B. Change sets can only be used between related organizations.

C. Deployment is done in a one-way, single transaction.

D. Sending a change set between two orgs requires a deployment connection.

E. Change sets can be used to transfer records.

42. A custom picklist field, Pool Preference ¢, exists on a custom object. The picklist contains the following options: ‘Vegan’, ‘Kosher’, 'No Preference’. The developer must ensure a value is populated every time a record is created or updated.

What is the optimal way to ensure a value is selected every time a record is saved?

43. A developer created a new after insert trigger on the Lead object that creates Task records for each Lead.

After deploying to production, an existing outside integration that inserts Lead records in batches to Salesforce is occasionally reporting total batch failures being caused by the Task insert statement. This causes the integration process in the outside system to stop, requiring a manual restart.

Which change should the developer make to allow the integration to continue when some records in a batch cause failures due to the Task insert statement, so that manual restarts are not needed?

44. A business has a proprietary Order Management System (OMS) that creates orders from its website and fulfills the orders. When the order is created in the OMS, an integration also creates an order record in Salesforce and relates it to the contact as identified by the email on the order. As the order goes through different stages in the OMS, the integration also updates it in Salesforce.

The business notices that each update from the OMS creates a new order record in Salesforce.

Which two actions should prevent the duplicate order records from being created in Salesforce? Choose 2 answers

45. A developer created a child Lightning web component nested inside a parent Lightning web component. The parent component needs to pass a string value to the child component.

In which two ways can this be accomplished? Choose 2 answers

46. Which two operations affect the number of times a trigger can fire? Choose 2 answers

47. Universal Hiring uses Salesforce to capture job applications. A salesforce administrator created two custom objects; Job__c acting as the master object, to Application_c acting as the detail.

Within the Job__c object, a custom multi-select picklist, preferred _Locations__c, contains a list of approved states for the position. Each Job_Application__c record relates to a Contact within the system through a master-detail relationship.

Recruiters have requested the ability to view whether the Contact's Mailing State value matches a value selected on the Preferred Locations__c field, within the Job_Application__c record. Recruiters would like this value to be kept in sync if changes occur to the Contact's Mailing State.

What is the recommended tool a developer should use to meet the business requirement?

48. Given the following Apex statement:

Account myAccount = [SELECT Id, Name FROM Account);

What occurs when more than one Account is returned by the SOQL query?

49. What are three capabilities of the tag when loading JavaScript resources in Aura

components? Choose 3 answers

50. A software company uses the following objects and relationships:

* Case: to handle customer support issues

* Defect__c: a custom object to represent known issues with the company's software

* Case Defect__c a junction object between Case and Defect __c to represent that a defect is a cause of a customer issue

Case and Defect__c have Private organization-wide defaults.

What should be done to share a specific Case_Defect__c record with a user?

51. Universal Containers wants to automatically assign new cases to the appropriate support representative based on the case origin. They have created a custom field on the Case object to store the support representative name.

What is the best solution to assign the case to the appropriate support representative?

52. A developer needs to allow users to complete a form on an Account record that will create a record for a custom object.

The form needs to display different fields depending on the user’s job role, The functionality should only be available to a small group of users.

Which three things should the developer do to satisfy these requirements? Choose 3 answers

53. Given the following Anonymous block:





What should a developer consider for an environment that has over 10,000 Case records?

54. How should a developer write unit tests for a private method in an Apex class?

55. Which two are phases in the Aura application event propagation framework? Choose 2 answers

56. What can be easily developed using the Lightning Component framework?

57. How many Accounts will be inserted by the following block of code?

58. A developer needs to make a custom Lightning Web Component available in the Salesforce Classic user interface Which approach can be used to accomplish this?

59. A developer wants to send an outbound message when a record meets a specific criteria.

Which two features satisfy this use case?

60. A developer has a single custom controller class that works with a Visualforce Wizard to support creating and editing multiple sObjects. The wizard accepts data from user inputs across multiple Visualforce pages and from a parameter on the initial URL.

Which three statements are useful inside the unit test to effectively test the custom controller? Choose 3 answers