Free Salesforce DEX-450 Exam Dumps and DEX-450 Exam Questions

Question No: 21

MultipleChoice

A developer must write an Apex method that will be called from a Lightning component. The method may delete an account stored in the accountRec variable. Which method should a developer use to ensure only users that should be able to delete Accounts can succesfully perform deletions?

Options

AAccountRec.sObjectType.isDeleteable()

BSchema.sObjectType.Account.isDeletable()

CAccountRec.isdeletable()

DAccount.isDelketable()

Question No: 22

MultipleChoice

custom picklist field, Food_Preference__c, exist 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 most efficient way to ensure a value is selected every time a record is saved?

Options

ASet 'Use the first value in the list as the default value' as True.

BSet a validation rule to enforce a value is selected.

CMark the field as Required on the field definition.

DMark the field as Required on the object's page layout.

Question No: 23

MultipleChoice

Which three web technologies can be integrated into a Visualforce page? Choose 3 answares

Options

AHTML (Missed)

BJava

CPHP

DCSS (Missed)

EJavaScript (Missed)

Question No: 24

MultipleChoice

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 permission for the currently logged-in user while using the custom search tool?23wa

Options

AUse the schema describe calls to determine if the logged-in users has access to the Account object.

BUse the without sharing keyword on the class declaration.

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

DUse the with sharing keyword on the class declaration.

Question No: 25

MultipleChoice

Which feature should a developer use to update an inventory count on related Product records when the status of an Order is modified to indicate it is fulfilled?

Options

AProcess Builder process

BLightning component

CVisualforce page

DWorkflow rule

Question No: 26

MultipleChoice

What is the result of the following Classes page?

Options

AView the Code Coverage column in the view on the Apex Classes page.

BView the Class test Coverage tab on the Apex Class record.

Cview the overall Code Coverage panel of the tab in the Developer Console.

DSelect and run the class on the Apex Test Execution page

Question No: 27

MultipleChoice

A developer must modify the following code snippet to prevent the number of SOQL queries issued from exceeding the platform governor limit. public class without sharing OpportunityService( public static List&lt;OpportunityLineItem&gt; getOpportunityProducts(Set&lt;Id&gt; opportunityIds){ List&lt;OpportunitylineItem&gt; oppLineItems = new List&lt;OpportunityLineItem&gt;(); for(Id thisOppId : opportunityIds){ oppLineItems.addAll([Select Id FROM OpportunityLineItems WHERE OpportunityId = :thisOppId)]; } return oppLineItems; } } The above method might be called during a trigger execution via a Lightning component. Which technique should be implemented to avoid reaching the governor limit?

Options

AUse the System.Limits.getQueries() method to ensure the number of queries is less than 100.

BUse the System.Limits.getlimitQueries() method to ensure the number of queries is less than 100.

CRefector the code above to perform the SOQL query only if the Set of opportunityIds contains less 100 Ids.

DRefactor the code above to perform only one SOQL query, filtering by the Set of opportunityIds.

Question No: 28

MultipleChoice

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 x?

Options

A2

B1

C3

D4