[UPDATED Aug-2026] Best Value Available Preparation Guide for CRT-450 Exam
1 Full CRT-450 Practice Test and 240 Unique Questions, Get it Now!
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NEW QUESTION # 127
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?
- A. Lightning Web Components
- B. Flow
- C. Visualforce
- D. VUE JavaScript framework
Answer: A
Explanation:
Lightning Web Components (LWCs) are the best choice for creating custom UI components in Salesforce.
They provide robust features such as event handling and server-side communication, allowing for validation of user input before saving data.
Reference:Lightning Web Components Documentation
NEW QUESTION # 128
Which two platform features align to the Controller portion of MVC architecture? (Choose two.)
- A. Date fields
- B. Process Builder actions
- C. Standard objects
- D. Workflow rules
Answer: B,D
NEW QUESTION # 129
Universal Containers stores Orders and Line Items in Salesforce. For security reason, financial representatives are allowed to see information on the Order such as order amount, but they are not allowed to see the Line items on the Order. Which type of relationship should be used?
- A. Master Detail
- B. Lookup
- C. Indirect lookup
- D. Direct Lookup
Answer: A
NEW QUESTION # 130
Which annotation exposes an Apex class as a RESTful web service?
- A. @RemoteAction
- B. @AuraEnabled(cacheable=true)
- C. @HttpInvocable
- D. @RestResource (urlMapping="'/mySexrvice/*')
Answer: D
Explanation:
To expose an Apex class as a RESTful web service, you use the @RestResource annotation.
Option C: @RestResource(urlMapping='/myService/*')
@RestResource Annotation:
The @RestResource annotation is used to define an Apex class as a RESTful web service, specifying the URL mapping.
Methods within the class are annotated with @HttpGet, @HttpPost, @HttpPut, etc., to handle HTTP requests.
Example:
apex
Copy code
@RestResource(urlMapping='/myService/*')
global with sharing class MyRestService {
@HttpGet
global static String doGet() {
// Implementation
}
}
Reference:
"Use @RestResource to expose an Apex class as a RESTful web service."
- Apex Developer Guide: Exposing Apex Classes as REST Web Services
Why Other Options Are Incorrect:
Option A: @HttpInvocable
There is no @HttpInvocable annotation in Apex.
Option B: @RemoteAction
Used to expose methods to JavaScript in Visualforce pages, not for REST services.
"@RemoteAction methods enable you to call methods in Apex controllers from JavaScript code in a Visualforce page."
- Apex Developer Guide: Remote Action Methods
Option D: @AuraEnabled(cacheable=true)
Used to expose Apex methods to Lightning components, not for REST services.
Conclusion:
Using @RestResource with a URL mapping is the correct way to expose an Apex class as a RESTful web service.
NEW QUESTION # 131
A developer has the controller class below.
Which code block will run successfully in an execute anonymous window?
myFooController m = new myFooController();
- A. System.assert(m.prop ==0);
myFooController m = new myFooController(); - B. System.assert(m.prop !=null);
myFooController m = new myFooController(); - C. System.assert(m.prop ==1);
- D. System.assert(m.prop ==null);
myFooController m = new myFooController();
Answer: D
Explanation:
Explanation
NEW QUESTION # 132
A developer has to Identify a method in an Apex class that performs resource intensive actions in memory by iterating over the result set of a SOQL statement on the account. The method also performs a DML statement to save the changes to the database. Which two techniques should the developer implement as a best practice to esure transaction control and avoid exceeding governor limits? Choose
2 answers
- A. Use the System.Limit class to monitor the current CPU governor limit consuption. (Missed)
- B. Use the @ReadOnly annotation to bypass the number of rows returned by a SOQL.
- C. Use Partial DML statements to ensure only valid data is committed.
- D. Use the Database.Savepoint method to enforce database integrity. (Missed)
Answer: A,D
NEW QUESTION # 133
Using DescribeSObjectResult, which Apex method can a developer use to determine if the current user can edit records for an object?
- A. isUpdateable()
- B. canUpdate()
- C. isEditable()
- D. canEdit()
Answer: A
NEW QUESTION # 134
What are two considerations for deploying from a sandbox to production?
Choose 2 answers
- A. Should deploy during business hours to ensure feedback can be quickly addressed.
- B. At least 75% of Apex code must be covered by unit tests.
- C. Unit tests must have calls to the System.assert method.
- D. All triggers must have at least one line of test coverage.
Answer: B,D
NEW QUESTION # 135
When a user edits the Postal Code on an Account, a custom Account text field named "Timezone" must be update based on the values in a PostalCodeToTimezone__c custom object. How should a developer implement this feature?
- A. Build an account Approval Process
- B. Build an Account custom Trigger.
- C. Build an Account Assignment Rule.
- D. Build an Account Workflow Rule.
Answer: B
NEW QUESTION # 136
Which requirement needs to be implemented by using standard workflow instead of Process Builder? Choose 2 answers
- A. Submit a contract for approval.
- B. Create activities at multiple intervals.
- C. Copy an account address to its contacts.
- D. Send an outbound message without Apex code.
Answer: C,D
NEW QUESTION # 137
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 postalCodeToTimezone_c custom object.
What should be built to implement this feature?
- A. Account custom trigger
- B. Account assignment rule
- C. Account workflow rule
- D. Account approval process
Answer: A
Explanation:
The best way to implement this feature is to use an Account custom trigger. A trigger is a piece of Apex code that executes before or after a record is inserted, updated, deleted, or undeleted1. In this case, the trigger should execute before an Account record is updated and check if the Postal Code field has changed. If so, the trigger should query the postalCodeToTimezone_c custom object to find the matching Timezone value and assign it to the custom Account text field named Timezone. This way, the Timezone field will be updated automatically based on the Postal Code field.
An Account approval process is not suitable for this feature, as it is used to automate the process of approving records based on predefined criteria and actions2. An Account assignment rule is also not suitable, as it is used to assign ownership of Account records to users or queues based on criteria3. An Account workflow rule is not suitable either, as it is used to automate tasks, email alerts, field updates, and outbound messages based on criteria and evaluation rules4. None of these options can update the Timezone field based on the values in a custom object.
References:
* Apex Developer Guide - Triggers
* Salesforce Help - Approval Processes
* Salesforce Help - Assignment Rules
* Salesforce Help - Workflow Rules
NEW QUESTION # 138
What is a fundamental difference between a Master-Detail relationship and a Lookup relationship?
- A. In a Master-Detail relationship, when a record of a master object is deleted, the detail records are not deleted.
- B. In a Lookup relationship, the field value is mandatory.
- C. A Master-Detail relationship detail record inherits the sharing and security of its master record.
- D. In a Lookup relationship when the parent record is deleted, the child records are always deleted.
Answer: C
NEW QUESTION # 139
Which two statements can a developer use to throw a custom exception of type MissingFieldValueException?
Choose 2 answers.
- A. Throw (MissingFieldValueException, 'Problem occurred');
- B. Throw new MissingFieldValueException ('Problem occurred');
- C. Throw Exception (new MissingFieldValueException());
- D. Throw new MissingFieldValueException();
Answer: B,D
NEW QUESTION # 140
Assuming that name is a String obtained by an tag on a Visualforce page, which two SOQL queries performed are safe from SOQL injection? Choose 2 answers A) B)
C)
D)
- A. Option A
- B. Option C
- C. Option B
- D. Option D
Answer: B,C
Explanation:
Option B:Escapes single quotes usingString.escapeSingleQuotes, protecting against SOQL injection.
Option C:Uses bind variables, which are inherently safe from SOQL injection.
Reference:SOQL and SOSL Injection Prevention
NEW QUESTION # 141
Which scenario is valid for execution by unit tests?
- A. Execute anonymous Apex as a different user.
- B. Load data from a remote site with a callout.
- C. Set the created date of a record using a system method.
- D. Generate a Visualforce PDF with getcontentaAsPDF ().
Answer: C
NEW QUESTION # 142
A developer completed modifications feature that is comprised of two elements:
* Apex trigger
* Trigger handler Apex class
What are two factors that the developer must take into account to properly deploy them to the production environment?
Choose 2 answers
- A. Test methods must be declared with the testMethod keyword.
- B. Apex classes must have at least 75% code coverage org-wide.
- C. At least one line of code must be executed for the Apex trigger.
- D. All methods in the test classes must use @istest.
Answer: B,C
Explanation:
75% Code Coverage (A):To deploy Apex code to production, Salesforce requires at least 75% of the code to be covered by tests across the organization.
Reference:Apex Testing Framework
Trigger Coverage (C):Apex triggers must have at least one line of code covered by test execution to deploy.
Reference:Testing Apex Triggers
Incorrect Options:
B:Although@isTestis recommended, it is not mandatory for all methods.
D:ThetestMethodkeyword is outdated and replaced by@isTest.
NEW QUESTION # 143
Universal Containers hires a developer to build a custom search page to help user- find the Accounts they want. Users will be able to search on Name, Description, and a custom comments field.
Which consideration should the developer be aware of when deciding between SOQL and SOSL?
Choose 2 answers
- A. SOSL is able to return more records.
- B. SOSL is faster for tent searches.
- C. SOQL is able to return more records.
- D. SOQL is faster for text searches.
Answer: A,B
Explanation:
SOSL and SOQL are two different types of search languages in Salesforce. SOSL is a programmatic way of performing a text-based search against the search index, while SOQL is the equivalent of a SELECT SQL statement and searches the org database1. The developer should consider the following factors when deciding between SOQL and SOSL2:
* The number of records to be returned: SOSL can return up to 2,000 records from multiple objects, while SOQL can return up to 50,000 records from a single object or from multiple objects that are related to one another1.
* The speed of text searches: SOSL is generally faster than SOQL for text searches, especially if the search expression uses a CONTAINS term. SOSL can tokenize multiple terms within a field and build a search index from this, which makes SOSL searches more efficient and relevant1.
* The knowledge of the object or field: SOSL is useful when the developer does not know which object or field the data resides in, and wants to retrieve data for a specific term across multiple objects and fields. SOQL is useful when the developer knows which objects the data resides in, and wants to retrieve data from a single object or from multiple objects that are related to one another1.
* The type of data to be retrieved: SOSL supports text, email, and phone fields, and can retrieve data that is in Chinese, Japanese, Korean, or Thai. SOQL supports number, date, or checkbox fields, and can retrieve data from big objects1. References:
* Introduction to SOQL and SOSL | SOQL and SOSL Reference | Salesforce Developers
* Difference between SOSL and SOQL search types - Salesforce
NEW QUESTION # 144
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