Salesforce DEX-450 Dumps Updated – Choose DEX-450 Dumps (V9.02) to Get Success Today

1. While developing an Apex class with custom search functionality that will be launched from a Lightning Web Component, how can the developer ensure only records accessible to the currently logged in user are displayed?

2. While working in a sandbox, an Apex test fails when run in the Test Runner. However, executing the Apex logic in the Execute Anonymous window succeeds with no exceptions or errors.

Why did the method fail in the sandbox test framework but succeed in the Developer Console?

3. Universal Containers has implemented an order management application. Each Order can have one or more Order Line items. The Order Line object is related to the Order via a master-detail relationship. For each Order Line item, the total price is calculated by multiplying the Order Line item price with the quantity ordered.

What is the best practice to get the sum of all Order Line item totals on the Order record?

A. Quick action

B. Apex trigger

C. Roll-up summary field

D. Formula field

4. 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?

A. Implement pagination with an OffsetController.

B. Use JavaScript remoting with SOQL Offset.

C. Implement pagination with a StandardSetController.

D. Use lazy loading and a transient List variable.

5. Universal Containers implemented a private sharing model for the Account object. A custom Account search tool was developed with Apex to help sales representatives find accounts that match multiple criteria they specify. Since its release, users of the tool report they can see Accounts they do not own.

What should the developer use to enforce sharing permissions for the currently logged in user while using the custom search tool?

A. Use the schema describe calls to determine if the logged-in user has access to the Account object,

B. Use the with sharing keyword on the class declaration.

C. Use the without sharing keyword on the class declaration.

D. Use the UserInfo Apex class to filter all SOQL queries to returned records owned by the logged-in user.

6. A developer wants to improve runtime performance of Apex calls by caching results on the client.

What is the most efficient way to implement this and follow best practices?

A. Call the setStorable () method on the action in the JavaScript client-side code.

B. Set a cookie in the browser for use upon return to the page.

C. Decorate the server-side method with @AuraEnsbled(storable=true).

D. Decorate the server-side method with @AuraZnabled(cacheable=true).

7. Which three resources in an Aura component can contain JavaScript functions? Choose 3 answers

8. A developer considers the following snippet of code:

Boolean isOK;

integer x;

String theString = 'Hello';

if (isOK == false && theString == 'Hello') {

x = 1;

} else if (isOK == true && theString =='Hello') {

x = 2;

} else if (isOK != null && theString == 'Hello') {

x = 3;

} else {

x = 4;

}

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

9. A developer is implementing an Apex class for a financial system, Within the class, the variables ‘creditAmount’ and "debitAmount' should not be able to change once a value Is assigned.

In which two ways can the developer declare the variables to ensure their value can only be assigned one time? Choose 2 answers

10. 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?

11. Universal Containers has an order system that uses an Order Number to identify an order for customers and service agents. Order records will be imported into Salesforce.

How should the Order Number field be defined in Salesforce?

12. 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 failure due to the Task insert statement, so that manual restarts are not needed?

13. Where are two locations a developer can look to find information about the status of batch or future

methods? Choose 2 answers

14. What is the value of the Trigger.old context variable in a before insert trigger?

15. 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?

16. Which two characteristics are true for Lightning Web Component custom events? Choose 2 answers

17. Cloud Kicks has a multi-screen flow that its call center agents use when handling inbound service desk calls.

At one of the steps in the flow, the agents should be presented with a list order numbers and dates that are retrieved from an external order management system in real time and displayed on the screen.

What should a developer use to satisfy this requirement?

18. Universal Containers has developed custom Apex code and Lightning Components in a Sandbox environment. They need to deploy the code and associated configurations to the Production environment.

What is the recommended process for deploying the code and configurations to Production?

19. A developer created a Visualforce page and custom controller to display the account type field as shown below.

Custom controller code:

Visualforce page snippet:

what should the developer do to correct the problem?

20. A developer created a trigger on the Account object and wants to test if the trigger is properly bulkified. The developer team decided that the trigger should be tested with 200 account records with unique names.

What two things should be done to create the test data within the unit test with the least amount of code?

Choose 2 answers

21. A developer is asked to prevent anyone other than a user with Sales Manager profile from changing the Opportunity Status to Closed Lost if the lost reason is blank.

Which automation allows the developer to satisfy this requirement in the most efficient manner?

22. What can be used to override the Account's standard Edit button for Lightning Experience?

23. A developer created a custom order management app that uses an Apex class. The order is represented by an Order object and an Orderltem object that has a master-detail relationship to Order. During order processing, an order may be split into multiple orders.

What should a developer do to allow their code to move some existing Orderltem records to a new Order record?

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

25. 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

26. A developer is creating an app that contains multiple Lightning web components.

One of the child components is used for navigation purposes. When a user clicks a button called Next in the child component, the parent component must be alerted so it can navigate to the next page.

How should this be accomplished?

27. Universal Containers is building a recruiting app with an Applicant object that stores information about an individual person and a Job object that represents a job. Each applicant may apply for more than one job.

What should a developer implement to represent that an applicant has applied for a job?

28. A business has a proprietary Order Management System (QMS) 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?

29. A developer must troubleshoot to pinpoint the causes of performance issues when a custom page loads in their org.

Which tool should the developer use to troubleshoot query performance?

30. 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?

31. Which two actions may cause triggers to fire? Choose 2 answers

32. 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?

33. Universal Containers decides to use purely declarative development to build out a new Salesforce application.

Which two options can be used to build out the business logic layer for this application? Choose 2 answers

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

public class myClass {

public void myMethod () {/*implementation*/}

}

35. Which three statements are accurate about debug logs? Choose 3 answers

36. How should a developer write unit tests for a private method in An Apex class?

37. 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?

38. An Opportunity needs to have an amount rolled up from a custom object that is not in a master-detail relationship.

How can this be achieved?

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

40. 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)

41. Developers at Universal Containers (UC) use version control to share their code changes, but they notice that when they deploy their code to different environments they often have failures. They decide to set up Continuous Integration (CI).

What should the UC development team use to automatically run tests as part of their CI process?

42. A Next Best Action strategy uses an Enhance element that invokes an Apex method to determine a discount level for a Contact, based on a number of factors.

What is the correct definition of the Apex method?

A)

B)

C)

D)

43. A company has a custom object, order__ ¢, that has a required, unique external ID field called crder_number_c.

Which statement should be used to perform the DML necessary to insert new records and update existing records in a list of order_c records using the external ID field?

44. A lead developer creates a virtual class called "OrderRequest".

Consider the following code snippet:

Public class CustomerOrder {

//code implementation

}

How can a developer use the OrderRequest class within the CustomerOrder class?

45. Universal Containers needs to create a custom user interface component that allows users to enter information about their accounts. The component should be able to validate the user input before saving the information to the database.

What is the best technology to create this component?

46. A developer needs to create a baseline set of data (Accounts, Contacts, Products, Assets) for an entire suite of tests allowing them to test independent requirements for various types of Salesforce Cases.

Which approach can efficiently generate the required data for each unit test?

47. Universal Containers decided to transition from Classic to Lightning Experience. They asked a developer to replace a JavaScript button that was being used to create records with prepopulated values.

What can the developer use to accomplish this?

48. Which annotation exposes an Apex class as a RESTful web service?

49. A custom object Trainer_ < has a lookup field to another custom object cym__ c.

Which SOQL query will get the record for the Viridian City Gym and all it's trainers?

50. Assuming that name is a String obtained by an <apex:inpucText> tag on a Visualforce page, which two SOQL queries performed are safe from SOQL injection? Choose 2 answers

A)

B)

C)

D)

51. Considering the following code snippet:

When the code executes, a DML exception is thrown.

How should a developer modify the code to ensure exceptions are handled gracefully?

52. 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

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

54. A developer created this Apex trigger that calls MyClass.myStaticMsthod:

trigger myTrigger on Contact (before insert)

{ MyClass.myStaticMethod(trigger.new, trigger.oldMap); }

The developer creates a test class with a test method that calls Myclass.myStacicMethod directly, resulting in 81% overall code coverage.

What happens when the developer tries to deploy the trigger and two classes to production, assuming no other code exists?

What happens when the developer tries to deploy the trigger and two classes to production, assuming no other code exists?

55. Universal Containers (UC) processes orders in Salesforce in a custom object, ord=xr <. They also allow sales reps to upload CSV files with thousands of orders at a time.

A developer is tasked with integrating orders placed in Salesforce with UC’s enterprise resource planning (ERP) system.

After the status for an order__ c is first set to 'Placed’, the order information must be sent to a REST endpoint in the ERP system that can process one order at a time.

What should the developer implement to accomplish this?

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

57. Universal Containers has a support process that allows users to request support from its engineering team using a custom object, Engineering_Support__ c.

Users should be able to associate multiple Engineering_ support___c records to a single Opportunity record. Additionally, aggregate information about the Engineering Support__ c records should be shown on the Opportunity record.

Which relationship field should be implemented to support these requirements?

58. What are two considerations for deploying from a sandbox to production? Choose 2 answers

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

60. When a user edits the Postal Code on an Account, a custom Account text field named "Timezone™

must be updated based on the values in a PoataliCodeToTimezcone o custom object.

Which two automation tools can be used to implement this feature? Choose 2 answers

61. Universal Containers recently transitioned from Classic to Lightning Experience.

One of its business processes requires certain values from the Opportunity cbject to be sent via an HTTP REST callout to its external order management system when the user presses a custom button on the Opportunity detail page.

Example values are as follows:

* Name

* Amount

* Account

Which two methods should the developer implement to fulfill the business requirement? Choose 2 answers

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

63. A developer has the following requirements:

Calculate the total amount on an Order.

Calculate the line amount for each Line Item based on quantity selected and price.

Move Line Items to a different Order if a Line Item Is not In stock.

Which relationship implementation supports these requirements on its own?

64. Which two statements are true about using the @testSetup annotation in an Apex test class? Choose 2 answers

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

Consider the following code snippet:

How can a developer use the Laptop Interface within the silverzaptop class?