Salesforce CRT-450 Exam Questions Instant Access

Question 1

A developer has an integer variable called maxAttempts. The developer needs to ensure that once maxAttempts is initialized, it preserves its value for the length of the Apex transaction; while being able to share the variable's state between trigger executions.

How should the developer declare maxAttempts to meet these requirements?

ADeclare maxattempts as a constant using the static and final keywords.

BDeclare maxattempts as a member variable on the trigger definition.

CDeclare maxattempts as a variable on a helper class.

DDeclare maxAttempts as a private static variable on a helper class.

Answer : A

Question 2

Universal Containers wants to ensure that all new leads created in the system have a valid email address. They have already created a validation rule to enforce this requirement, but want to add an additional layer of validation using automation.

What would be the best solution for this requirement?

ASubmit a REST API Callout with a JSON payload and validate the fields on a third party system

BUse a before-save Apex trigger on the Lead object to validate the email address and display an error message if it is invalid

CUse a custom Lightning Web component to make a callout to validate the fields on a third party system.

DUse an Approval Process to enforce the completion of a valid email address using an outbound message action.

Answer : B

Before-save Apex Trigger:

This is the best solution because a before-save trigger runs before the record is saved to the database, providing an opportunity to validate or modify the data.

In this case, the Apex trigger can validate the email address using a regular expression or a third-party API call to ensure the email address is valid. If the email is invalid, an error message can be displayed using addError().

Why not the other options?

A . Submit a REST API Callout with a JSON payload:

REST callouts are more complex and generally not recommended for simple validation tasks like email format validation. Additionally, callouts cannot be performed directly in a before-save trigger.

C . Use a custom Lightning Web Component (LWC):

LWCs are primarily for UI interactions and should not be used to enforce data validations that are server-side requirements.

D . Use an Approval Process:

Approval Processes are for managing the approval flow of records, not for real-time validations. They cannot enforce email validation directly.

Apex Triggers Documentation

Trigger Context Variables

Question 3

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?

ASetup Menu

BVisual Studio Code IDE

CAppExchange

DDeveloper Console

Answer : D

Question 4

A lead developer creates a virtual class called "OrderRequest". Consider the following code snippet:

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

AExtends (class='OrderRequest'}
public class CustomerOrder

Bpublic class CustomerOrder implements Order

Cpublic class CustomerOrder extends OrderRequest

D@Implements (class='OrderRequest')
public class Customerorder

Answer : C

Question 5

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?

AUse a LATEST formula on each of the latest availability date fields.

BUse a CEILING formula on each of the latest availability date fields.

CUse a DAYS formula on each of the availability date fields and a COUNT Roll-Up Summary field on the Order.

DUse a MAX Roll-Up Summary field on the latest availability date fields.

Answer : D

Question 6

A developer deployed a trigger to update the status__c of Assets related to an Account when the Account's status changes and a nightly integration that updates Accounts in bulk has started to fail with limit failures.

What should the developer change about the code to address the failure while still having the code update all of the Assets correctly?

AMove all of the logic to a Queveable class that queries for and updates the Assets and call it from the trigger.

BAdd List assets = [SELECT id, Status_ FROM WHERE AccountId = : acctId] to line 14 and iterate over the assets list in the for loop on line 15.;

CAdd a LIMIT clause to the SOQL query on line 16 to limit the number of Assets queried for an Account.

DChange the getAssetsToUpdate method to process all Accounts in one call and call it outside of the for loop that starts on line 03.

Answer : D

Question 7

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 successfully perform deletions?

AaccountRec, isDeletable()

BSchema,sObjectType,Account, isDeletable ()

CaccuntRec, sObjectType,isDeletable()

DAccount,isDeleteable

Answer : B

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