TVB-450 by Salesforce Valid Free Exam Practice Test

Question 1

A developer must create a CreditcardPayment class that provides an implementation of an existing Payment class. Public virtual class Payment { public virtual void makePayment(Decimal amount) { /*implementation*/ } } Which is the correct implementation?

A. Public class CreditCardPayment extends Payment {
public virtual void makePayment(Decimal amount) { /*implementation*/ }
} B. Public class CreditCardPayment implements Payment {
public override void makePayment(Decimal amount) { /*Implementation*/ }
} C. Public class CreditcardPayment extends Payment {
public override void makePayment(Decimal amount) { /*implementation*/ }
} D. Public class CreditCardPayment implements Payment {
public virtual void makePayment(Decimal amount) { /*implementation*/ }
}

Correct Answer: C

Question 2

A developer needs to have records with specific field values in order to test a new Apex class.
What should the developer do to ensure the data is available to the test?

A. Use SOQL to query the org for the required data. B. Use Test.loadDataO and reference a JSON file in Documents. C. Use Anonymous Apex to create the required data. D. Use Test.loadDataO < > and reference a CSV file in a static resource.

Correct Answer: D

Question 3

Which two statements are true about using the @testSetup annotation in an Apex test class?
Choose 2 answers

A. Records created in the test setup method cannot be updated in individual test methods. B. Test data is inserted once for all test methods in a class. C. A method defined with the @testSetup annotation executes once for each test method in the test class and counts towards system limits. D. Qo The @testSetup annotation is not supported when the GisTest(SeeAllData=True) annotation is used.

Correct Answer: C,D

Question 4

A developer must provide custom user interfaces when users edit a Contact in either Salesforce Classic or Lightning Experience.
What should the developer use to override the Contact's Edit button and provide this functionality?

A. A Visualforce page in Salesforce Classic and a Lightning component in Lightning Experience B. A Lightning page in Salesforce Classic and a Visualforce page in Lightning Experience C. A Visualforce page in Salesforce Classic and a Lightning page in Lightning Experience D. A Lightning component in 5alesforce Classic and a Lightning component in lightning Experience

Correct Answer: A

Question 5

What are two ways for a developer to execute tests in an org?

A. Bulk API B. Tooling API C. Matadata API D. Developer console

Correct Answer: B,D

Question 6

When importing and exporting data into Salesforce, which two statements are true?
Choose 2 answers

A. Bulk API can be used to import large data volumes in development environments without bypassing the storage limits. B. Data import wizard is a client application provided by Salesforce. C. Developer and Developer Pro sandboxes have different storage limits. D. Bulk API can be used to bypass the storage limits when importing large data volumes in development environments.

Correct Answer: B,C

Question 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. Quick action B. Apex trigger C. Formula field D. Roll-up summary field

Correct Answer: D

Question 8

What does the Lightning Component framework provide to developers?

A. Templates to create custom components. B. Extended governor limits for applications C. Prebuilt component that can be reused. D. Support for Classic and Lightning UIS.

Correct Answer: C

Question 9

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. public ExtendedController(ApexPages StandardController cntrl) { } B. insert pageRef. C. String nextPage - controller.save().getUrl(); D. Test.setCurrentPage(pageRef); E. ApexPages.CurrentPage().getParameters().put('input\', 'TestValue');

Correct Answer: C,D,E

Question 10

The values 'High', 'Medium', and 'Low' are Identified as common values for multiple picklist across different object. What is an approach a developer can take to streamline maintenance of the picklist and their values, while also restricting the values to the ones mentioned above?

A. Create the Picklist on each object as a required field and select "Display values alphabeticaly, not in the order entered". B. Create the Picklist on each object and use a Global Picklist Value Set containing the Values. C. Create the Picklist on each and add a validation rule to ensure data integrity. D. Create the Picklist on each object and select "Restrict picklist to the values defined in the value set".

Correct Answer: B

Question 11

A developer Is Integrating with a legacy on-premise SQL database.
What should the developer use to ensure the data being Integrated is matched to the right records in Salesforce?

A. Lookup field B. External Object C. External ID field D. Formula field

Correct Answer: C

Question 12

Which salesforce org has a complete duplicate copy of the production org including data and configuration?

A. Partial Copy Sandbox B. Production C. Full Sandbox D. Developer Pro Sandbox

Correct Answer: C

Question 13

A developer wants to import 500 Opportunity records into a sandbox. Why should the developer choose to use data Loader instead of Data Import Wizard?

A. Data Loader automatically relates Opportunities to Accounts. B. Data Import Wizard does not support Opportunities. C. Data Loader runs from the developer's browser. D. Data Import Wizard can not import all 500 records.

Correct Answer: B

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