[Mar 09, 2026] Pass CRT-450 Review Guide, Reliable CRT-450 Test Engine
CRT-450 Test Engine Practice Test Questions, Exam Dumps
Salesforce CRT-450 certification is recognized globally and is highly valued by employers who seek to hire qualified Salesforce developers. By earning this certification, developers can not only enhance their career prospects but also gain access to a vast network of Salesforce professionals and resources. Salesforce Certified Platform Developer I certification demonstrates the developer's commitment to continuous learning and professional development, which is essential for staying relevant in a rapidly evolving technology landscape.
NEW QUESTION # 87
A developer is asked to set a picklist field to 'Monitor' on any new Leads owned by a subnet of Users.
How should the developer implement this request?
- A. Create a before insert Lead trigger.
- B. Create a Lead Workflow Rule Field Update.
- C. Create a Lead formula field.
- D. Create an after insert Lead trigger.
Answer: B
NEW QUESTION # 88
Managers at Universal Containers want to ensure that only decommissioned containers are able to be deleted in the system. To meet the business requirement a Salesforce developer adds "Decommissioned" as ipicklist value for the Statu3__c custom field within the Container__c object.
Which two approaches could a developer use to enforce only Container records with a status of
"Decommissioned" can be deleted?
Choose 2 answers
- A. Before record-triggered flow
- B. Validation rule
- C. After record-triggered flow
- D. Apex trigger
Answer: B,D
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. Record-triggered 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
NEW QUESTION # 89
Which two describe Heroku Redis? Choose 2 answers.
- A. Is a repository for storing large images.
- B. Is provisioned and managed as an add-on.
- C. Is an option for long-term data storage.
- D. Is an in-memory key-value data store, run by Heroku.
Answer: B,D
NEW QUESTION # 90
In the following example, which sharing context will myMethod execute when it is invoked?
- A. Sharing rules will not be enforced for the running user.
- B. Sharing rules will be enforced for the running user.
- C. Sharing rules will be Inherited from the calling context.
- D. Sharing rules will be enforced by the instantiating class.
Answer: C
NEW QUESTION # 91
What should a developer use to script the deployment and unit test execution as part of continuous integration?
- A. VS Code
- B. Execute Anonymous
- C. Developer Console
- D. Salesforce CLI
Answer: D
NEW QUESTION # 92
What are two ways that a controller and extension can be specified on a Visualforce page?
Choose 2 answers
- A. Qo apex:page standardController="Account" extensions="myControllerExtension"
- B. a@pex:page=Account extends="myControllerExtension"
- C. apex:page controllers="Account, myControllerExtension"
- D. apex:page controller="Account" extensions="myControllerExtension""
Answer: A,D
NEW QUESTION # 93
A developer working on a time management application wants to make total hours for each timecard available to applications users. A timecard entry has a Master-Detail relationship to a timecard. Which approach should the developer use to accomplish this declaratively?
- A. A Process Builder process that updates a field on the timecard entry is created.
- B. A Roll-up Summary field on the Timecard Object that calculates the total hours from timecard entries for that timecard.
- C. An Apex trigger that uses an Aggregate Query to calculate the hours for a given timecard and stores it in a custom field.
- D. A visualforce page that calculates the total number of hours for a timecard and displays it on the page.
Answer: B
NEW QUESTION # 94
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)
- A. Option A
- B. Option C
- C. Option D
- D. Option B
Answer: B
NEW QUESTION # 95
Which three operations affect the number of times a trigger can fire?
Choose 3 answers
- A. Email messages
- B. Roll-Up Summary fields
- C. Process Flows
- D. Criteria-based Sharing calculations
- E. Workflow Rules
Answer: B,C,E
Explanation:
The number of times a trigger can fire depends on the number of records that are processed and the number of DML operations that are performed. Some operations can cause the trigger to fire multiple times, either by updating the same records or by updating related records. These operations include:
* Process Flows: A process flow is a declarative tool that can automate complex business processes by executing actions based on criteria. A process flow can update the same record that triggered it, or a related record, which can cause the trigger to fire again1.
* Workflow Rules: A workflow rule is a declarative tool that can automate tasks and field updates based on criteria. A workflow rule can update the same record that triggered it, or a related record, which can cause the trigger to fire again2.
* Roll-Up Summary fields: A roll-up summary field is a custom field that aggregates child record information into a parent record. A roll-up summary field can update the parent record when a child record is inserted, updated, deleted, or undeleted, which can cause the trigger to fire again3.
The other options do not affect the number of times a trigger can fire. Criteria-based sharing calculations and email messages do not update records or cause DML operations. References:
* Process Automation | Salesforce Help
* Workflow Rules | Salesforce Help
* Roll-Up Summary Fields | Salesforce Help
NEW QUESTION # 96
A recursive transaction is limited by a DML statement creating records for these two objects:
1. Accounts
2. Contacts
The Account trigger hits a stack depth of 16.
Which statement is true regarding the outcome of the transaction?
- A. The transaction fails only if the Contact trigger stack depth is greater or equal to 16.
- B. The transaction succeeds and all the changes are committed to the database.
- C. The transaction fails and all the changes are rolled back.
- D. The transaction succeeds as long as the Contact trigger stack depth is less than 16.
Answer: B
NEW QUESTION # 97
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?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION # 98
The code below deserializes input into a list of Accounts.
Which code modification should be made to insert the Accounts so that field-level security is respected?
- A. 01: Public with sharing class AcctCreator
- B. 05: If (SobjectType.Account, isCreatable())
- C. 05: Accts = database.stripinaccesible (accts, Database. CREATEABLE);
- D. 05: SobjectAcessDecision sd= Security,stripINaccessible(AccessType,CREATABLE,
Answer: A
NEW QUESTION # 99
A custom Visualforce controller calls the ApexPages,addMessage () method, but no messages are rendering on the page.
Which component should be added to the Visualforce page to display the message?
- A. <Apex: facet name='' message''/>
- B. <apex: pageMessage severity="info''/>
- C. <Apex: message for='' info''/>
- D. <apex: pageMessages />
Answer: B
NEW QUESTION # 100
A developer creates a new Apex trigger with a helper class, and writes a test class that only exercises
95% coverage of 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?
- A. Run the tests using the 'Run All Tests' method.
- B. Remove the falling test methods from the test class.
- C. Increase the test class coverage on the helper class
- D. Create a test class and methods to cover the Apex trigger
Answer: D
NEW QUESTION # 101
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?
- A. approval process on the Opportunity object
- B. An error condition formula on a validation rule on Opportunity
- C. An Apex trigger on the Opportunity object
- D. A record trigger flow on the Opportunity object
Answer: B
Explanation:
An error condition formula on a validation rule on Opportunity is the automation that allows the developer to satisfy the requirement in the most efficient manner. A validation rule is a declarative feature that allows you to define criteria for data quality and integrity. It can prevent users from saving records that do not meet the specified conditions. In this case, the developer can create a validation rule on the Opportunity object that checks if the user profile is not Sales Manager, the Opportunity Status is Closed Lost, and the lost reason is blank. If these conditions are true, the validation rule can display an error message and prevent the record from being saved12.
References:
* 1: Validation Rules
* 2: Cert Prep: Platform Developer I: Data Modeling and Management
NEW QUESTION # 102
(Full question statement)
Which statement generates a list ofLeadsandContactsthat have a field containing the phrase "ACME"?
- A. List<List<SObject>> searchList = [FIND '*ACME*' IN ALL FIELDS RETURNING Contact, Lead];
- B. List<SObject> searchList = [find 'acme' in all fields returning Contact, Lead];
- C. List<List<SObject>> searchList = [SELECT Name, Id FROM Contact, Lead WHERE Name LIKE '% ACME%'];
- D. List<SObject> searchList = [FIND '*ACME*' IN FIELDS RETURNING Contact, Lead];
Answer: A
Explanation:
C (Correct):This is the correctSOSL (Salesforce Object Search Language)syntax. It performs a full-text search across multiple objects and fields.
The format FIND '*ACME*' IN ALL FIELDS RETURNING Contact, Lead is thestandard and correctapproach for cross-object keyword searches.
Incorrect options:
A:Incorrect syntax; needs ALL FIELDS or NAME FIELDS, and proper result typing.
B:SOQL does not support searching across multiple objects in a single query.
D:Incorrect casing and structure; missing proper list handling.
Reference:Apex Developer Guide - SOSL Syntax
This relates toDeveloper Fundamentals (23%), specificallySOSL vs. SOQL use cases and syntax.
NEW QUESTION # 103
How should a developer prevent a recursive trigger?
- A. Use a "one trigger per object" pattern.
- B. Use a private Boolean variable.
- C. Use a static Boolean variable.
- D. Use a trigger handler.
Answer: C
Explanation:
Explanation/Reference:
NEW QUESTION # 104
A developer has an integer variable called maxAttempts. The developer meeds to ensure that once maxAttempts is initialized, it preserves its value for the lenght 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?
- A. Declare maxattempts as a member variable on the trigger definition.
- B. Declare maxattempts as a variable on a helper class
- C. Declare maxattempts as a private static variable on a helper class
- D. Declare maxattempts as a constant using the static and final keywords
Answer: C
Explanation:
The best way to declare maxAttempts to meet the requirements is to declare it as a private static variable on a helper class. This will ensure that the variable is initialized only once per Apex transaction, and that its value is preserved and shared across trigger executions. A private static variable is a variable that belongs to a class and not an instance, and that can only be accessed within the class. A helper class is a class that contains common methods or variables that can be used by other classes or triggers.
References: The use of private static variables and helper classes can be referenced in the Salesforce Platform Developer I learning documents, specifically in modules that cover Apex basics and triggers, such as:
* Apex Basics & Database
* Apex Triggers
* Apex Testing
NEW QUESTION # 105
A developer uses an 'after update' trigger on the Account object to update all the Contacts related to theAccount. The trigger code shown below is randomly failing.
List<Contacts> theContacts = new List<Contacts>(); for(Account a : Trigger.new){ for(Contact c : [SELECT Id, Account_Date__c FROM Contact WHERE AccountId = :a.Id]){ c.Account_Date__c = Date.today(); theContacts.add(c);
}
} updates theContacts;
Which line of code is causing the code block to fail?
- A. The trigger processes more than 200 records in the for loop.
- B. A SOQL query is located inside of the for loop.
- C. An exception is thrown ifAccount_Date__c is null.
- D. An exception is thrown if theContacts is empty
Answer: B
NEW QUESTION # 106
Which user can edit a record after it has been locked for approval? (Choose 2)
- A. Any user with a higher role in the hierarchy
- B. An administrator
- C. Any user who approved the record previously
- D. A user who is assigned as the current approver
Answer: B,D
NEW QUESTION # 107
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?
- A. Visual Studio Code
- B. Developer Console
- C. Force.com Toolkit
- D. Salesforce CLI
Answer: D
Explanation:
Salesforce CLI is a command-line interface that lets you run commands to create, test, and deploy Salesforce applications. You can easily integrate Salesforce CLI commands into various CI tools, such as CircleCI, Jenkins, or Travis CI, to automate testing and deployment of Salesforce applications against scratch orgs.
Salesforce CLI also supports the Salesforce DX development model, which enables source-driven development, team collaboration, and agile delivery. References:
* Continuous Integration | Salesforce DX Developer Guide
* Set Up Continuous Integration for Your Salesforce Projects | Salesforce Developers Blog
* Collaborate Using Continuous Integration Unit | Salesforce Trailhead
NEW QUESTION # 108
What is the value of the Trigger.old context variable in a before insert trigger?
- A. Undefined
- B. A list of newly created sObjects without IDs
- C. null
- D. An empty list of sObjects
Answer: C
Explanation:
Trigger.old in a before insert trigger:
The Trigger.old context variable contains the old version of the records being processed in the trigger.
In a before insert trigger, the records being processed are new and have no prior state in the database, so Trigger.old is null.
This behavior is specific to insert triggers because there is no "old" record to reference before the record is created.
Why is it null?
The Trigger.old variable is only populated for triggers that handle updates or deletions (e.g., before update, after update, before delete, after delete). For insert operations, no previous state of the record exists.
Why not the other options?
A . An empty list of sObjects:
This is incorrect because Trigger.old is not initialized as an empty list for insert triggers-it is simply null.
B . Undefined:
Trigger.old is defined in the trigger context, but it is null for insert operations. Undefined is not a valid Apex state.
D . A list of newly created sObjects without IDs:
This describes Trigger.new in a before insert trigger, not Trigger.old. Trigger.new contains the new records being inserted.
Reference:
Apex Triggers Documentation
Trigger Context Variables
NEW QUESTION # 109
The Job_Application__c custom object has a field that is a Master-Detail relationship to the Contact object, where the Contact object is the Master. As part of a feature implementation, a developer needs to retrieve a list containing all Contact records where the related Account Industry is `Technology' while also retrieving the contact's Job_Application__c records. Based on the object's relationships, what is the most efficient statement to retrieve the list of contacts?
- A. [SELECT Id, (SELECT Id FROM Job_Applications_c) FROM Contact WHERE Accounts.Industry
= `Technology']; - B. [SELECT Id, (SELECT Id FROM Job_Applications_r) FROM Contact WHERE Account.Industry =
`Technology']; - C. [SELECT Id, (SELECT Id FROM Job_Applications_r) FROM Contact WHERE Accounts.Industry
= `Technology']; - D. [SELECT Id, (SELECT Id FROM Job_Application_c) FROM Contact WHERE Account.Industry =
`Technology'];
Answer: C
NEW QUESTION # 110
Which three resources in an Azure Component can contain JavaScript functions?
- A. Renderer
- B. Controllers
- C. helper
- D. Design
- E. Style
Answer: A,B,C
Explanation:
* Controllers, helpers, and renderers are three resources in an Aura Component that can contain JavaScript functions. They are used to implement the client-side logic and behavior of the component12.
* Controllers are the primary resource for handling user interactions and events. They define the actions that are executed on the client or sent to the server12.
* Helpers are the secondary resource for sharing common code and logic across controllers and other helpers. They can also access component attributes and call server-side actions12.
* Renderers are the optional resource for customizing the rendering lifecycle of the component. They can override the default rendering, rerendering, and unrendering methods of the component12.
* Design and style are two other resources in an Aura Component, but they do not contain JavaScript functions. They are used to define the design-time attributes and the CSS styles of the component12.
References:
* 1: Aura Components Basics
* 2: Cert Prep: Platform Developer I: User Interface
NEW QUESTION # 111
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