CRT-450 Practice Exam and Study Guides - Verified By Actual4dump Updated 202 Questions
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To prepare for the Salesforce CRT-450 exam, candidates are advised to have a thorough understanding of the Salesforce platform and its various features. They should also have experience in developing custom applications using Apex and Visualforce. Salesforce provides official study materials, including online courses, study guides, and practice exams, to help candidates prepare for the exam.
NEW QUESTION # 115
Universal Container is building a recruiting app with an Applicant object that stores information about an individual person that represents a job. Each application may apply for more than one job.
What should a developer implement to represent that an applicant has applied for a job?
- A. Master-detail field from Applicant to Job
- B. Junction object between Applicant and Job
- C. Lookup field from Applicant to Job
- D. Formula field on Applicant that references Job
Answer: B
NEW QUESTION # 116
A developer needs to create a custom Interface in Apex.
Which three considerations must the developer keep in mind while developing the Apex Interface?
Choose 3 answers
- A. The Apex class must be declared using the interface keyword.
- B. New methods can be added to a public interface within a released package.
- C. A method implementation can be defined within the Apex Interface.
- D. A method defined In an Apex Interface cannot have an access modifier.
- E. The Apex interface class access modifier can be set to Private, Public, or Global.
Answer: A,C,D
NEW QUESTION # 117
Which code block returns the ListView of an Account object usingthe following debug statement?
system.debug(controller.getListViewOptions() );
- A. ApexPages.StandardController controller = new ApexPages.StandardController( [SELECT Id FROM Account LIMIT 1]);
- B. ApexPages.StandardSetController controller = new ApexPages.StandardSetController( Database.getQueryLocator( 'SELECT Id FROM Account LIMIT 1'));
- C. ApexPages.StandardController controller = new ApexPages.StandardController( Database.getQueryLocator( 'SELECT Id FROM Account LIMIT 1'));
- D. ApexPages.StandardControllercontroller = new ApexPages.StandardController( [SELECT Id FROM Account LIMIT 1]);
Answer: B
NEW QUESTION # 118
Which standard field needs to be populated when a developer inserts new Contact records programmatically?
- A. Accountld
- B. Name
- C. LastName
- D. FirstName
Answer: C
NEW QUESTION # 119
Which option would a developer use to display the Accounts created in the current week and the number of related Contacts using a debug statement in Apex?
- A. For(Account acc: [SELECT Id, Name, (SELECT Id, Name FROM Contacts) FROM Account WHERE CreatedDate = CURRENT_WEEK]){ List cons = acc.Contacts; System.debug(acc.Name + ' has ' + cons.size() + 'Contacts'); }
- B. For(Account acc: [SELECT Id, Name,(SELECT Id, Name FROM Contacts) FROM Account WHERE CreatedDate = THIS_WEEK]) { List cons = acc.Contacts; System.debug(acc.Name + ' has ' + cons.size() + 'Contacts'; }
- C. For(Account acc:[SELECT Id, Name, Account.Contacts FROM Account WHERE CreatedDate = CURRENT_WEEK]) { List cons = acc.Account.Contacts; System.debug(acc.Name + ' has ' + cons.size() + 'Contacts'); }
- D. For(Account acc: [SELECT Id, Name, Account.Contacts FROM Account WHERE CreatedDate = THIS_WEEK]){ List cons = acc.Account.Contacts; System.debug(acc.Name + ' has ' + cons.size() +
'Contacts' }
Answer: B
NEW QUESTION # 120
What is the result of the following code snippet?
- A. 201 Accounts are inserted.
- B. 0 Accounts are inserted.
- C. 1 Account is inserted.
- D. 200 Accounts are inserted.
Answer: B
NEW QUESTION # 121
A developer must implement a checkpaymentpbrocaessox class that provides check processing payment capabilities that adhere to what is defined for payments in the paymentProcsssor Interface.
Which implementation is correct to use the paymenterocesscr interface class?
- A.
- B.
- C.
Answer: C
NEW QUESTION # 122
A developer needs to create a baseline set of data (Accounts, Contacts, Products, Assets) for an entire suite of tests allowing them to test independent requirements for various types of Salesforce Cases.
Which approach can efficiently generate the required data for each unit test?
- A. Add @TsTest (seeAllData=true) at the start of the unit test class.
- B. Create a mock using the Stub API.
- C. Use @TestSetup with a void method.
- D. Create test data before Test.startTest {} in the unit test,
Answer: C
Explanation:
To efficiently generate a baseline set of data for unit tests that can be shared across multiple test methods, you should:
Option A: Use @TestSetup with a void method.
@TestSetup Annotation:
The @TestSetup method runs once before any test methods in the test class and is used to create common test data.
Data created in @TestSetup is available to all test methods within the test class.
Example:
@IsTest
private class MyTestClass {
@TestSetup
static void setupData() {
// Create Accounts, Contacts, Products, Assets
// This data is available to all test methods
}
@IsTest
static void testCase1() {
// Test logic here
}
@IsTest
static void testCase2() {
// Test logic here
}
}
Reference:
"Use test setup methods (methods that are annotated with @TestSetup) to create test records once and then access them in every test method in the test class."
- Apex Developer Guide: Using Test Setup Methods
Why Other Options Are Less Efficient:
Option B: Create test data before Test.startTest() in the unit test.
This approach would require creating test data in each test method, leading to code duplication.
Option C: Add @IsTest(seeAllData=true) at the start of the unit test class.
Using seeAllData=true is discouraged as it makes tests dependent on org data, which can lead to unreliable tests.
Option D: Create a mock using the Stub API.
The Stub API is used for mocking interfaces and not for creating test data.
Conclusion:
Using @TestSetup methods is the most efficient way to generate required test data for unit tests.
NEW QUESTION # 123
A developer has a single custom controller class that works with a Visualforce Wizard to support creating and editing multiple subjects. 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. ApexPages.CurrentPage().getParameters().put('input\', 'TestValue');
- B. String nextPage - controller.save().getUrl();
- C. Test.setCurrentPage(pageRef);
- D. public ExtendedController(ApexPages StandardController cntrl) { }
- E. insert pageRef.
Answer: A,B,C
NEW QUESTION # 124
Which scenario is valid for execution by unit tests?
- A. Set the created date of a record using a system method.
- B. Load data from a remote site with a callout.
- C. Generate a Visualforce PDF with getcontentaAsPDF ().
- D. Execute anonymous Apex as a different user.
Answer: A
NEW QUESTION # 125
Given the code below, what can be done so that recordCountcan be accessed by a test class, but not by a non-test class?
- A. Add the TestVisible annotation to recordCount.
- B. Add the SeeAllData annotation to the test class.
- C. Add the TestVisible annotation to the MyController class.
- D. Change recordCount from private to public.
Answer: A
NEW QUESTION # 126
A business has a proprietary Order Management System (OMS) that creates orders from their website and fulfills the orders. When the order is created in the OMS, an integration also creates an order record in Salesforce and relates it to the contact as identified by the email on the order. As the order goes through different stages in the OMS, the integration also updates It in Salesforce. It is noticed that each update from the OMS creates a new order record in Salesforce.
Which two actions will prevent the duplicate order records from being created in Salesforce?
Choose 2 answers
- A. Use the email on the contact record as an external ID.
- B. Ensure that the order number in the OMS is unique.
- C. Use the order number from the OMS as an external ID.
- D. Write a before trigger on the order object to delete any duplicates.
Answer: B,C
Explanation:
The problem of duplicate order records is caused by the integration not being able to identify the existing order record in Salesforce and creating a new one instead. To prevent this, the integration needs to use a unique identifier that can match the order record in both systems. The order number in the OMS can serve as such an identifier, if it is guaranteed to be unique and not reused. Therefore, the following actions can prevent the duplicate order records from being created in Salesforce:
* Option A: Ensure that the order number in the OMS is unique. This will ensure that there is no ambiguity or confusion when matching the order records in both systems.
* Option B: Use the order number from the OMS as an external ID. An external ID is a custom field that can be used to store a unique identifier from an external system. By using the order number from the OMS as an external ID, the integration can use the upsert operation to either insert a new order record or update an existing one based on the external ID value.
References:
* Trailhead: Data Modeling (1)
* Trailhead: Data Integration (2)
* Apex Developer Guide: Upserting Records (3)
NEW QUESTION # 127
A developer must perform a complex SOQL query that joins two objects in a Lightning component. How can the Lightning component execute the query?
- A. Write the query in a custom Lightning web component wrapper ana invoke from the Lightning component,
- B. Create a flow to execjte the query and invoke from the Lightning component
- C. Invoke an Apex class with the method annotated as &AuraEnabled to perform the query.
- D. Use the Salesforce Streaming API to perform the SOQL query.
Answer: C
Explanation:
A Lightning component can execute a complex SOQL query that joins two objects by invoking an Apex class with the method annotated as @AuraEnabled. This annotation enables the Apex method to be called from the Lightning component's JavaScript controller or helper. The Apex method can then perform the SOQL query and return the results to the Lightning component. This approach allows the Lightning component to leverage the programmatic capabilities of Apex and SOQL to perform complex queries that are not possible with declarative tools such as flows or standard components. References:
* Certification - Platform Developer I - Trailhead, Section 5. Exam Outline, Topic: Logic and Process Automation, Weight: 46%, Objective: Describe how to use declarative and programmatic methods to create custom user interfaces on the Lightning Platform.
* [Call Apex Methods from Lightning Web Components], Trailhead Module, Unit: Call Apex Methods Imperatively
* [SOQL and SOSL Queries], Salesforce Developer Guide, Chapter: SOQL and SOSL Reference
NEW QUESTION # 128
When a user edits the Postal Code on an Account, a custom Account text field named ''Timezone'' must be updated based on the values another custom object object called.
What is the optimal way to Implement this feature?
- A. Build a flow with flow Builder.
- B. Build an account assignment rule.
- C. Create an account approval process.
- D. Create a formula field.
Answer: A
Explanation:
The optimal way to implement this feature is to build a flow with Flow Builder. Flow Builder is a tool that lets you automate business processes by creating flows that execute logic, interact with Salesforce, and call Apex classes. You can use Flow Builder to create a record-triggered flow that runs when an Account record is updated. In the flow, you can use a Get Records element to query the custom object based on the Postal Code field of the Account record. Then, you can use an Assignment element to assign the value of the Timezone field from the custom object record to the Timezone field of the Account record. Finally, you can use an Update Records element to save the changes to the Account record.
Option B is incorrect because an account assignment rule is used to automatically assign account owners based on criteria. It does not update other fields on the account record.
Option C is incorrect because a formula field is a read-only field that derives its value from a formula expression. It cannot be updated by the user or by a trigger.
Option D is incorrect because an account approval process is used to require approval from one or more users before an account record can be saved. It does not update other fields on the account record.
References: Flow Builder (Trailhead)), Record-Triggered Flows (Trailhead)), Account Assignment Rules (Salesforce Help)), Formula Fields (Salesforce Help)), Approval Processes (Salesforce Help))
NEW QUESTION # 129
Assuming that naze is 8 String obtained by an <apex:inpotText> tag on 8 Visualforce page, which two SOQL queries performed are safe from SOQL injection?
'Choose 2 answers
- A.
- B.
- C.
- D.
Answer: A,D
NEW QUESTION # 130
A developer is tasked with performing a complex validation using Apex as part of advanced business logic. certain criteria are met for a PurchaseOrder, the developer must throw a custom exception.
What is the correct way for the developer to declare a class that can be used as an exception?
- A. public class PurchaseOrderException extends Exception ()
- B. public class PurchaseOrderException implements Exception ()
- C. public class PurchaseOrder extends Exception ()
- D. public class PurchaseOrder implements Exception ()
Answer: A
NEW QUESTION # 131
The values 'High', 'Medium', and 'Low' are identified as common values for multiple picklists across different objects.
What is an approach a developer can take to streamline maintenance of the picklists and their values, while also restricting the values to the ones mentioned above?
- A. Create the Picklist on each object and use a Global Picklist Value Set containing the values.
- B. Create the Picklist on each object and add a validation rule to ensure data integrity.
- C. Create the Picklist on each object as a required field and select "Display values alphabetically, not in the order entered".
- D. Create the Picklist on each object and select "Restrict picklist to the values defined in the value set".
Answer: A
NEW QUESTION # 132
Account acct = {SELECT Id from Account limit 1}; Given the code above, how can a developer get the type of object from acct?
- A. Call "Account.getSobjectType()"
- B. Call "Account.SobjectType"
- C. Call "acct.getsObjectType()"
- D. Call "acct.SobjectType"
Answer: C
NEW QUESTION # 133
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 # 134
Universal Containers wants to back up all of the data and attachments in its Salesforce org once a month.
Which approach should a developer use to meet this requirement?
- A. Define a Data Export scheduled job.
- B. Create a Schedulable Apex class.
- C. Schedule a report.
- D. Use the Data Loader command line.
Answer: A
NEW QUESTION # 135
The sales team at Universal Containers would like to see a visual indicator appear on both Account and Opportunity page layouts to alert salespeople when an Account is late making payments or has entered the collections process. What can a developer implement to achieve this requirement without having to write custom code?
- A. Formula Field
- B. Quick Action
- C. Roll-up Summary Field
- D. Workflow Rule
Answer: A
NEW QUESTION # 136
Universal Hiring uses Salesforce to capture job applications. A salesforce administrator created two custom objects; Job__c acting as the master object, Job_Application__c acting as the detail.
Within the Job__c object, a custom multi-select picklist, Preferred Locations__c, contains a list of approved states for the position. Each Job_Application__c record relates to a Contact within the system through a master-detail relationship.
Recruiters have requested the ability to view whether the Contact's Mailing State value matches a value selected on the Preferred_Locations_ c field, within the Job_Application__c record. Recruiters would like this value to be kept in sync if changes occur to the Contact's Mailing State.
What is the recommended tool a developer should use to meet the business requirement?
- A. Formula field
- B. Roll-up summary field
- C. Apex trigger
- D. Record-triggered flow
Answer: A
Explanation:
Scenario:
Objects Involved:
Job__c (Master)
Job_Application__c (Detail)
Contact (Related via Master-Detail relationship on Job_Application__c)
Fields:
Preferred_Locations__c (Multi-select picklist on Job__c)
MailingState (Field on Contact)
Requirement:
On Job_Application__c, display whether the Contact's MailingState matches any value in Preferred_Locations__c on the related Job__c.
Keep this value in sync if changes occur to the Contact's MailingState.
Solution:
Option C: Formula field
Correct Approach.
Create a Formula Field on Job_Application__c that compares the Contact's MailingState with the Job's Preferred_Locations__c.
Since Job_Application__c is a detail of Job__c and has a lookup to Contact, the formula can reference fields from both related objects.
Use the INCLUDES() function to check if the MailingState is among the selected values in Preferred_Locations__c.
Sample Formula:
INCLUDES(Job__r.Preferred_Locations__c, Contact__r.MailingState)
This formula returns a Boolean (TRUE or FALSE) indicating whether there's a match.
Benefits:
Real-Time Calculation: Updates automatically when either field changes.
No Code Required: Declarative solution using formula fields.
Maintenance: Easy to manage and update if needed.
Roll-up Summary Fields are used to perform calculations on detail records and summarize them on the master record.
Cannot be used to compare fields between unrelated objects or for the given comparison.
Option B: Record-triggered flow
Possible but Not Optimal.
A flow could be used to update a field based on changes.
However, it adds complexity and requires maintenance.
Flows consume resources and may have performance considerations.
Option D: Apex trigger
Possible but Overkill.
An Apex trigger can handle the requirement but introduces code maintenance.
Not necessary when a declarative solution exists.
Conclusion:
A Formula Field is the recommended tool to meet the business requirement.
It provides a simple, efficient, and maintainable solution that updates in real-time when data changes.
Reference:
Using Cross-Object Formulas
INCLUDES Function
Why Other Options are Not Suitable:
Option A: Roll-up summary field
Incorrect Use Case.
NEW QUESTION # 137
......
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