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CRT-450 Practice Test Questions
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Salesforce CRT-450 Sample Questions – Free Practice Test & Real Exam Prep
Question #1
Universal Containers wants to ensure that all new leads created in the system have a validemail address. They have already created a validation rule to enforce this requirement, butwant to add an additional layer of validation using automation.What would be the best solution for this requirement?
A. Submit a REST API Callojt with a JSON payload and validate the f elds on a third pattysystem
B. Use an Approval Process to enforce tne completion of a valid email address using anoutbound message action.
C. Use a before-save Apex trigger on the Lead object to validate the email address anddisplay an error message If it Is invalid
D. Use a custom Lightning web component to make a callout to validate the fields on athird party system.
Answer: C
Explanation: A before-save Apex trigger on the Lead object can validate the email
address using regular expressions or other logic and display an error message if it is
invalid. This solution is efficient, scalable, and does not require any external dependencies
or user intervention. References:
[Apex Triggers]: Learn how to write Apex triggers to perform custom actions before
or after changes to Salesforce records.
[Validation Rules]: Learn how to use validation rules to check the accuracy of data
before it’s saved to your database.
[Approval Processes]: Learn how to automate the approval of records in
Salesforce. [Lightning Web Components]: Learn how to build fast and reusable web
components on the Lightning Platform.
Question #2
Which three resources in an Aura component can contain JavaScript functions? Choose 3answers
A. Renclerer
B. Style
C. Helper
D. Controller
E. Design
Answer: C,D,E
Explanation: A helper is a JavaScript resource that contains functions that can be reused
by the component’s controller or other helpers. A controller is a JavaScript resource that
contains functions that handle user interactions and events in the component. A renderer is
a JavaScript resource that overrides the default rendering behavior of the component.
A style is a CSS resource that defines the appearance of the component. A design is an
XML resource that specifies the design-time attributes for the
component. References: Using JavaScript, Using External JavaScript Libraries In Aura
Component, Expression Functions Reference
Question #3
Which code displays the contents of a Visualforce page as a PDF?
A. <apenipage contentType="pdf">
B. <apex:page contentType=“application/pd£f">
C. <apexipage renderAs="pdf">
D. <apex:page renderAs="application/pdf">
Answer: C
Explanation:
You can render any page as a PDF by adding the renderAs attribute to
the <apex:page> component, and specifying "pdf" as the rendering service1. For
example: <apex:page renderAs="pdf">. You can also use
the PageReference.getContentAsPDF() method in Apex to render a Visualforce page as
PDF data, and then use Apex code to convert that PDF data to an email attachment, a
document, a Chatter post, and so on2. References:
1: Render a Visualforce Page as a PDF File | Visualforce Developer Guide |
Salesforce Developers
2: Render a Visualforce Page as PDF from Apex | Visualforce Developer Guide |
Salesforce Developers
Question #4
Which code in a Visualforce page and/or controller might present a security vulnerability?
A. <apex:outputfield value="(!ctrl.userinput)" rendered="(!isfditable}" />
B. <apex:outputText escape="false" value="{!sCurrentPage.parameters.userInput}™ />
C. <apex:outputField value="{'ctrl.userInput}" />
D. <apex:outputText value="{!SCurrentPage.parameters.useriInput}" />
Answer: B
Explanation:
This code is vulnerable to a cross-site scripting (XSS) attack, because it takes usersupplied
input and outputs it directly back to the user without escaping the XSS-vulnerable
characters, such as <, >, ", ', and &. By setting the escape attribute to false, the developer
disables the anti-XSS filter that is enabled by default for most Visualforce tags. An attacker
can exploit this vulnerability by injecting malicious HTML or JavaScript code into the
userInput parameter, which can then execute on the user’s browser and compromise their
security or privacy. References:
Cross Site Scripting (XSS)
Security Tips for Apex and Visualforce Development
Security Guidelines for Apex and Visualforce Development
Question #5
In terms of the MVC paradigm, what are two advantages of implementing the view layer ofa Salesforce application using Lightning Web Component-based development overVisualforce?Choose 2 answers
A. Log capturing via the Debug Logs Setup page
B. Built-in standard and custom set controllers
C. Self-contained and reusable units of an application
D. Rich component ecosystem
Answer: C,D
Explanation:
The correct answers are option C and option D. Lightning Web Components are selfcontained
and reusable units of an application that follow web standards and can leverage
modern web features. They also benefit from a rich component ecosystem that includes
standard components, custom components, and third-party components. Visualforce, on
the other hand, is a legacy framework that relies on server-side rendering and proprietary
markup. It does not offer the same level of modularity, performance, and interoperability as
Lightning Web Components. References: The information can be referenced from the
official Salesforce documentation and learning materials available on Trailhead.
Specifically, it aligns with the objectives outlined in Lightning Web Components Basics,
where the benefits and features of Lightning Web Components are discussed. Lightning
Web Components Basics
Question #6
What is the value of the Trigger.old context variable in a before insert trigger?
A. A list of newly created sObjects without IDs
B. null
C. Undefined
D. An empty list of sObjects
Answer: B
Explanation: The Trigger.old context variable returns a list of the old versions of the
sObject records. This sObject list is only available in update and delete triggers1. In a
before insert trigger, there are no old versions of the records, so the Trigger.old context
for Working with Formulas - Salesforce Help (5) : Considerations for Deleting
Fields - Salesforce Help (6)
Question #8
A developer created a trigger on the Account object. While testing the trigger, thedeveloper sees the error message 'Maximum trigger depthexceeded’,What could be the possible causes?
A. The developer does not have the correct user permission.
B. The trigger is getting executed multiple times.
C. The trigger is a a helper class.
D. The trigger does not have sufficient code coverage.
Answer: B
Explanation:
The correct answer is that the trigger is getting executed multiple times. This error
message indicates that the trigger has exceeded the maximum number of recursions
allowed by Salesforce, which is 16. This can happen when the trigger causes an update on
the same object or a related object, which in turn fires the trigger again, creating an infinite
loop. To avoid this, the developer should use a static variable to control the trigger
execution and prevent it from running more than once in the same transaction. References
: Apex Developer Guide, Trailhead
Question #9
A developer is tasked with building a custom Lightning web component to collect Contactinformation.The form will be shared among many different types of users in the org. There are securityrequirements that only certain fields should be edited and viewed by certain groups ofusers.What should the developer use in their Lightning Web Component to support the securityrequirements?
A. force-input-field
B. ui-input-field
C. aura-input-field
D. lightning-input-field
Answer: D
Explanation:
The developer should use the lightning-input-field component to support the security
requirements. This component respects the field-level security and sharing settings of the
Salesforce org, and displays the appropriate data to different types of users. The other
components do not have this feature, and may expose sensitive data to unauthorized
users. References: Lightning Web Components Developer Guide), Secure Coding Guide)
Question #10
Managers at Universal Containers want to ensure that only decommissioned containers areable to be deleted in the system. To meet the business requirement a Salesforce developeradds "Decommissioned" as ipicklist value for the Statu3__c custom field within theContainer__c object.Which two approaches could a developer use to enforce only Container records with astatus of "Decommissioned" can be deleted?Choose 2 answers
A. Validation rule
B. After record-triggered flow
C. Apex trigger
D. Before record-triggered flow
Answer: A,C
Explanation:
A validation rule is a declarative way to enforce data quality and business logic on the
records. A validation rule can prevent a record from being deleted if it does not meet
certain criteria, such as having a specific field value. For example, a validation rule on the
Container__c object could be:
NOT(ISPICKVAL(Status__c, “Decommissioned”))
This validation rule would prevent any Container record from being deleted unless its
Status__c field is “Decommissioned”.
An Apex trigger is a programmatic way to execute custom logic before or after a record is
inserted, updated, deleted, or undeleted. An Apex trigger can also prevent a record from
being deleted by using the SObject.addError() method, which displays an error message
and rolls back the transaction. For example, an Apex trigger on the Container__c object could be:
trigger ContainerTrigger on Container__c (before delete) { for (Container__c c : Trigger.old)
{ if (c.Status__c != ‘Decommissioned’) { c.addError(‘You can only delete decommissioned
containers.’); } } }
This trigger would iterate over the records that are being deleted and check their Status__c
field. If the field is not “Decommissioned”, it would add an error to the record and prevent
the deletion.
B. After record-triggered flow and D. Before record-triggered flow are not correct answers
because record-triggered flows cannot prevent records from being deleted. Recordtriggered
flows are a declarative way to automate business processes and execute actions
when a record is created, updated, or deleted. However, record-triggered flows do not have
the ability to display custom error messages or roll back transactions. Therefore, they
cannot be used to enforce the business requirement of only allowing decommissioned
containers to be deleted. References: Validation Rules, Apex Triggers, Record-Triggered
Flows
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