Salesforce TVB-450 問題集

質問 1：
What are two ways for a developer to execute tests in an org?
A. Developer console
B. Matadata API
C. Tooling API
D. Bulk API
正解：A,C

質問 2：
The following code snippet is executed by a Lightning web component in an environment with more than 2,000 lead records:

Which governor limit will likely be exceeded within the Apex transaction?
A. Total number of records retrieved by SOQL queries
B. Total number of DML statement issued
C. Total number of SOQL queries issued
D. Total number of records processed as a result of DML statements
正解：A

質問 3：
What should a developer do to check the code coverage of a class after running all tests?
A. View the Code Coverage column in the list view on the Apex Classes page.
B. View Use cede coverage percentage for the class using the Overall Code Coverage panel in the Developer Console Tests tab.
C. Select and run the class on the Apex Test Execution page in the Developer Console.
D. View the Class Test Percentage tab on the Apex Class fist view m Salesforce Setup.
正解：D

質問 4：
A developer must implement a CheckPaymentProcessor class that provides check processing payment capabilities that adhere to what defined for payments in the PaymentProcessor interface. public interface PaymentProcessor { void pay(Decimal amount); } Which is the correct implementation to use the PaymentProcessor interface class?
A. Public class CheckPaymentProcessor extends PaymentProcessor {
public void pay(Decimal amount) {}
}
B. Public class CheckPaymentProcessor implements PaymentProcessor {
public void pay(Decimal amount);
}
C. Public class CheckPaymentProcessor extends PaymentProcessor {
public void pay(Decimal amount);
}
D. Public class CheckPaymentProcessor implements PaymentProcessor {
public void pay(Decimal amount) {}
}
正解：B

質問 5：
A developer created a new trigger that inserts a Task when a new Lead is created. After deploying to production, an outside integration chat reads task records is periodically reporting errors.
Which change should the developer make to ensure the integration is not affected with minimal impact to business logic?
A. Remove the Apex class from the integration user's profile.
B. Use a try-catch block after the insert statement.
C. Use the Database method with all or None set to false
D. Deactivate the trigger before the integration runs.
正解：A

質問 6：
Which two events need to happen when deploying to a production org? Choose 2 answers
A. All test and triggers must have at least 75% test coverage combined
B. All Apex code must have at least 75% test coverage.
C. All triggers must have at least 1% test coverage.
D. All triggers must have at least 75% test coverage.
正解：B,C

質問 7：
Universal Containers has implemented an order management application. Each Order can have one or more Order Line items. The Order Line object is related to the Order via a master-detail relationship. For each Order Line item, the total price is calculated by multiplying the Order Line item price with the quantity ordered.
What is the best practice to get the sum of all Order Line item totals on the Order record?
A. Formula field
B. Roll-up summary field
C. Apex trigger
D. Quick action
正解：B