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All Obstacles During CRT-450 Exam Preparation with CRT-450 Real Test Questions [Q136-Q158]

All Obstacles During CRT-450 Exam Preparation with CRT-450 Real Test Questions [Q136-Q158]

February 21, 2026 adminCRT-450, SalesforceCRT-450 certification dump free download, CRT-450 Free test questions, CRT-450 latest dumps free download, CRT-450 new exam dumps.zip, CRT-450 test passing score, CRT-450 valid study questions filesLeave a Comment on All Obstacles During CRT-450 Exam Preparation with CRT-450 Real Test Questions [Q136-Q158]

All Obstacles During CRT-450 Exam Preparation with CRT-450 Real Test Questions

Fully Updated Free Actual Salesforce CRT-450 Exam Questions

Q136. A developer is creating a test coverage for a class and needs to insert records to validate functionality. Which method annotation should be used to create records for every method in the test class?

 
 
 
 
The @TestSetup annotation is used to create records for every method in the test class. This annotation allows you to create common test data that is available for all test methods in the class. The test setup method runs only once before any test methods in the class. This reduces the need to create the same records for every test method and improves the performance of the test class. The @BeforeTest annotation is not a valid annotation in Apex. The @isTest(SeeAllData=True) annotation is used to grant test classes and methods access to all data in the organization, not to create records. The @PreTest annotation is not a valid annotation in Apex. References: IsTest Annotation | Apex Developer Guide | Salesforce Developers, How to Write a Test Class in Salesforce? The Salesforce Developer Guide …, IsTest Annotation in Salesforce – Automation Champion

Q137. Consider the following code snippet:
As part of the deployment cycle, a developer creates the following test class:
When the test class runs, the assertion fails.
Which change should the developer implement in the Apex test method to ensure the test method executes successfully?

 
 
 
 
The test class is failing because the records are being inserted with the default user context, which may not have the necessary sharing or profile permissions. Wrapping the insert operations within aSystem.runAsblock using aStandard Userensures the operations are executed with the correct context, simulating real-world behavior.
Reference:Testing with System.runAs

Q138. A developer has a single custom controller class that works with a Visualforce Wizard to support creating and editing multiple sObjects. The wizard accepts data from user inputs across multiple Visualforce pages and from a parameter on the initial URL.
Which three statements are useful inside the unit test to effectively test the custom controller?
Choose 3 answers

 
 
 
 
 
A: Thesave()method in the custom controller must be tested to ensure it works as intended and redirects to the correct page.
B: Setting parameters viaApexPages.currentPage().getParameters()is crucial to test scenarios where user input or URL parameters drive logic.
D: UsingTest.setCurrentPage(pageRef)is essential for simulating page context in unit tests.
Why not other options?
C: This statement does not belong to testing a custom controller.
B (second occurrence): It appears to be incorrectly formatted in the question.
Testing Apex Controllers

Q139. A developer writes a trigger on the Account object on the before update event that increments a count field. A workflow rule also increments the count field every time that an Account is created or update.
The field update in the workflow rule is configured to not re-evaluate workflow rules. What is the value of the count field if an Account is inserted with an initial value of zero, assuming no other automation logic is implemented on the Account?

 
 
 
 

Q140. A developer wrote Apex code that calls out to an external system.
How should a developer write the test to provide test coverage?

 
 
 
 

Q141. Which three statements are true regarding custom exceptions in Apex? (Choose three.)

 
 
 
 
 
Custom exceptions in Apex are user-defined exception classes that can have their own member variables, methods, constructors, and interfaces. They must extend the system Exception class and have a class name that ends with “Exception”. They cannot extend other classes besides the Exception class. Custom exceptions enable more detailed error messages and custom error handling in catch blocks. They can also be rethrown as inner exceptions to preserve the stack trace information.
References:
* Create Custom Exceptions | Apex Developer Guide
* Exception Class and Built-In Exceptions | Apex Reference Guide
* Handling Exceptions in Apex: Creating and Using Custom Exceptions
* Custom Or User-Defined Exception In Apex | Salesforce Developer Tutorials
* Using custom exception types | Mastering Apex Programming

Q142. A developer must create a ShippingCalculator class that cannot be instantiated and must include a working default implementation of a calculate method, that sub-classes can override. What is the correct implementation of the ShippingCalculator class?

 
 
 
 
the extending class can override the existing virtual methods by using the override keyword in the method definition. Overriding a virtual method allows you to provide a different implementation for an existing method https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_classes_extending.htm

Q143. Which Apex collection is used to ensure that all values are unique?

 
 
 
 

Q144. Which action causes a before trigger to fire by default for Accounts?

 
 
 
 
Abefore triggerfires when records are inserted, updated, or deleted. Using the Data Loader or Bulk API to import data updates records, which triggers thebefore insertorbefore updateevents.
Not Suitable:
Option A: Renaming or replacing picklists does not trigger a record-level operation.
Option B: The Mass Address Update tool is not a record operation that triggersbeforetriggers.
Option D: Converting leads to contacts triggers lead conversion events, not directly related to Account triggers.
Apex Triggers

Q145. A developer executes the following code in the Developer Console:
List<Account> fList = new List <Account> ();For(integer i= 1; I <= 200; i++){fList.add(new Account ( Name
= ‘Universal Account ‘ + i));}Insert fList;List <Account> sList = new List<Account>();For (integer I = 201; I
<
20000; i ++){sList.add(new Account (Name = ‘Universal Account ‘ + i));}Insert sList;How many accounts are created in the Salesforce organization ?

 
 
 
 

Q146. Which code statement includes an Apex method named updateaccounts in the Class AccountCont rolles for use in a Lightning web component?
A)

B)

C)

D)

 
 
 
 

Q147. A developer needs to confirm that a Contact trigger works correctly without changing the organization’s dat a. what should the developer do to test the Contact trigger?

 
 
 
 

Q148. Ursa Major Solar has a custom object, serviceJob-o, with an optional Lookup field to Account called partner-service-Provider_c.
The TotalJobs-o field on Account tracks the total number of serviceJob-o records to which a partner service provider Account is related.
What is the most efficient way to ensure that the Total job_o field kept up to data?

 
 
 
 
The most efficient way to ensure that the TotalJobs__c field on Account is kept up to date is to change it to a roll-up summary field. A roll-up summary field calculates values from related records, such as those in a related list1. In this case, the roll-up summary field on the Account object would count the number of ServiceJob__c records that are related to the Account via the partner_Service_Provider__c Lookup field. This is the simplest and most declarative way to achieve the requirement.
The other options are not valid because:
* Creating a record-triggered flow on ServiceJob__c would require more steps and logic than a roll-up summary field. A record-triggered flow would need to query the related Account record, update the TotalJobs__c field, and handle possible errors2. A record-triggered flow would also consume more system resources and limits than a roll-up summary field.
* Creating an Apex trigger on ServiceJob__c would require more coding and testing than a roll-up summary field. An Apex trigger would need to perform similar operations as a record-triggered flow, but with more complexity and less maintainability3. An Apex trigger would also consume more system resources and limits than a roll-up summary field.
* Creating a schedule-triggered flow on ServiceJob__c would not ensure that the TotalJobs__c field is kept up to date in real time. A schedule-triggered flow runs at a specified time or time interval, which means that the TotalJobs__c field could be outdated between the scheduled runs4. A schedule-triggered flow would also consume more system resources and limits than a roll-up summary field.
References:
* 1: Roll-Up Summary Field – Salesforce
* 2: Update Salesforce Records from a Flow
* 3: Inserting and Updating Records | Apex Developer Guide
* 4: Schedule-Triggered Flows – Salesforce

Q149. Which two combined methods should a developer use to prevent more than one open Opportunity on each Account? Choose 2 answers

 
 
 
 

Q150. A developer at Universal Containers is taked with implementing a new Salesforce application that bwill be maintained completely by their company’s Salesforce admiknistrator.
Which two options should be considered for buildig out the business logic layerof the application?
Chosse 2 answer

 
 
 
Validation rules and record-triggered flows are two declarative options for building out the business logic layer of a Salesforce application. Validation rules allow the developer to define criteria and error messages to prevent invalid data from being saved1. Record-triggered flows allow the developer to automate actions based on changes in records, such as creating, updating, or deleting related records2. Both of these options can be configured and maintained by a Salesforce administrator without writing code. References:
* Validation Rules, Trailhead module
* Record-Triggered Automation, Trailhead module

Q151. Using the Schema Builder, a developer tries to change the API name of a field that is referenced in an Apex test class.
What is the end result?

 
 
 
 

Q152. Given the following code snippet, that is part of a custom controller for a Visualforce page:

In which two ways can the try/catch be enclosed to enforce object and field-level permissions and prevent the DML statement from being executed if the current logged-in user does not have the appropriate level of access? Choose 2 answers

 
 
 
 
A: if (Schema.sObjectType.Contact.isUpdatable()) – This checks if the Contact object is updatable for the current user. B. if (Schema.sObjectType.Contact.fields.Is_Active__c.isUpdateable()) – This checks if the Is_Active__c field on the Contact object is updatable for the current user.
These checks should be performed before executing DML statements to ensure that security is not bypassed.
C and D are incorrect because: C. It only checks if the Contact object is accessible, not whether it’s updatable.
D: Checking ownership does not necessarily enforce field-level and object-level permissions.
References:
* Apex Developer Guide
* Trailhead: Data Security
I also noticed that you sent me an image along with your question. It seems to be a snippet of code written in Apex, which is used for Salesforce development. It shows a public method named updateContact that accepts a Contact object as a parameter. Inside this method, there’s an assignment operation where Is_Active__c field of thisContact object is set to false. A try/catch block follows where an attempt to update thisContact record occurs within try; any exceptions caught during this process are handled in catch block. If an exception occurs during update operation, an error message string gets concatenated with exception’s message and displayed using ApexPages.addmessage.
If you are looking for more resources to study for the Platform Developer I exam, you can check out the following links from my web search results:
* Free Salesforce Platform Developer 1 Practice Exam (With Answers): This is a website that offers
60-question practice exam with answers and explanations, written by a Salesforce Developer.
* SALESFORCE CERTIFIED PLATFORM DEVELOPER I: This is a PDF document that provides the exam guide, sample questions, and answers for the certification exam.
* Salesforce Platform Platform Developer I Exams – Courses: This is a website that offers 4 full-length practice exams with 60 questions each, written by a Salesforce Developer

Q153. Which annotation exposes an Apex class as a RESTful web service?

 
 
 
 

Q154. An after trigger on the account object performs a DML update operation on all of the child opportunities of an account. There are no active triggers on the opportunity object, yet a “maximum trigger depth exceeded” error occurs in certain situation. Which two reasons possibly explain the account trigger firing recursively? choose 2 answers

 
 
 
 

Q155. A software company uses the following objects and relationships:
* Case: to handle customer support issues
* Defect_c: a custom object to represent known issues with the company’s software
* case_Defect__c: a junction object between Case and Defector to represent that a defect Is a customer issue What should be done to share a specific Case-Defect_c record with a user?

 
 
 
 
To share a specific Case-Defect_c record with a user, the developer should share the parent Case and Defect_c records. This is because the Case-Defect_c object is a junction object that has two master-detail relationships with the Case and Defect_c objects. A junction object inherits the sharing and security settings from its two master objects, so the user needs to have access to both of them to view the junction object record1. Sharing only one of the parent records is not sufficient, as the user will not be able to see the other related record.
Sharing only the junction object record is not possible, as it does not have its own sharing settings.
References:
* 1: Create a Junction Object

Q156. A developer has a Visualforce page and custom controller to save Account records. The developer wants to display any validation rule violations to the user.
How can the developer make sure that validation rule violations are displayed?

 
 
 
 
When saving records using a custom controller in a Visualforce page, validation rule violations can occur. To display these validation error messages to the user, the developer should use the <apex:messages> component.
Option A: Include <apex:messages> on the Visualforce page.
Correct Approach.
The <apex:messages> component displays all messages that were generated for all components on the page, including validation rule violations.
When a DML operation is performed, any validation errors are automatically added to the ApexPages message collection.
Including <apex:messages> in the page ensures that these messages are displayed to the user.
Example:
<apex:page controller=”CustomAccountController”>
<apex:form>
<apex:messages />
<!– Form fields for Account –>
<apex:commandButton action=”{!saveAccount}” value=”Save” />
</apex:form>
</apex:page>
While a try/catch block can catch exceptions, it is not required for displaying validation errors.
Validation rule violations are added to the message collection automatically.
Using try/catch may suppress the standard error handling.
Option C: Add custom controller attributes to display the message.
Inefficient Approach.
Manually adding controller attributes and logic to handle error messages adds unnecessary complexity.
The standard <apex:messages> component handles this automatically.
Option D: Perform the DML using the Database.upsert() method.
Not Sufficient Alone.
Using Database.upsert() allows for finer control over DML operations and error handling.
However, unless the errors are added to the message collection, they will not be displayed.
The developer would still need to handle displaying the errors.
Conclusion:
By including the <apex:messages> component on the Visualforce page, validation rule violations and other error messages are displayed to the user automatically.
Therefore, Option A is the correct answer.
Reference:
apex
https://developer.salesforce.com/docs/atlas.en-us.pages.meta/pages/pages_compref_messages.htm Displaying Errors Option B: Use a try/catch with a custom exception class.
Not Necessary.

Q157. n org has an existing flow that creates an Opportunity with an Update Records element. A developer must update the flow to aiso create a ‘Contact and store the created Contact’s 1D on the Opportunity.
Which update must the developer make in the flow?

 
 
 
 
* Add a new Create Records element. This is true because the developer needs to create a new Contact record and store its ID on the Opportunity record. A Create Records element allows the developer to create one or more records of a specific object type and assign values to the fields of those records1.
* Add a new Get Records element. This is false because the developer does not need to query any existing records from the database. A Get Records element allows the developer to find and store one or more records of a specific object type that meet certain criteria2.
* Add a new Update Records element. This is false because the developer already has an Update Records element in the flow that updates the Opportunity record. A Update Records element allows the developer to update one or more records of a specific object type that meet certain criteria3.
* Add a new Roll back Records element. This is false because the developer does not need to undo any changes made by the flow. A Roll back Records element allows the developer to roll back the changes made by the flow to the database if an error occurs.
References:
* 1: Create Records
* 2: Get Records
* 3: Update Records
* : Roll Back Records

Q158. A developer created a child Lightning web component nested inside a parent Lightning web component, parent component needs to pass a string value to the child component.
In which two ways can this be accomplished?
Choose 2 answers

 
 
 
 
To pass data from a parent component to a child component, the developer can use either a custom event or a public property1. A custom event is a way for a component to communicate with its parent or ancestor components by sending a message that contains data. The parent component can listen for the event and handle it accordingly. A public property is a way for a parent component to pass data to a child component by setting an attribute on the child component’s HTML tag. The child component can access the data through the property’s value.
The developer cannot use the Apex controller class or invoke a method in the child component to pass data from the parent component. The Apex controller class is used to communicate with the server and perform business logic, not to pass data between components. Invoking a method in the child component is a way for the parent component to call a function defined in the child component, not to pass data to it. References:
* Inter-Component Communication Patterns for Lightning Web Components | Salesforce Developers Blog
* Communicate with Events – Lightning Web Components Developer Guide – Salesforce Developers
* Pass Data to Child Components – Lightning Web Components Developer Guide – Salesforce Developers

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Salesforce CRT-450 Certification Exam consists of 60 multiple-choice questions and must be completed within 105 minutes. CRT-450 exam is proctored online, and candidates can take it from anywhere in the world. The passing score for CRT-450 exam is 65%, and the exam fee is $200. Candidates are required to have prior experience in developing custom applications on the Salesforce platform and must have completed the Salesforce Platform App Builder certification before attempting CRT-450 exam. The Salesforce CRT-450 Certification Exam is a valuable credential for developers who want to advance their careers in Salesforce development and demonstrate their expertise in developing custom applications on the Salesforce platform.

 

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