Trailhead Virtual Bootcamp for Platform Developer I (TVB-450) Free Practice Test

Question 1

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. Write a before trigger on the order object to delete any duplicates.

B. Use the order number from the OMS as an external ID.

C. Ensure that the order number in the OMS is unique.

D. Use the email on the contact record as an external ID.

Correct Answer: A,C

Question 2

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.

Correct Answer: A

Question 3

A developer created these three Rollup Summary fields in the custom object, Project_ct,

The developer is asked to create a new field that shows the ratio between rejected and approved timesheets for a given project.
Which should the developer use to Implement the business requirement in order to minimize maintenance overhead?

A. Formula field

B. Record-triggered Flow

C. Process Builder

D. Apex Trigger

Correct Answer: A

Question 4

For which three items can a trace flag be configured?
Choose 3 answers

A. Visualforce

B. Apex Class

C. User

D. Process Builder

E. Apex Trigger

Correct Answer: B,C,E

Question 5

What should a developer do to check the code coverage of a class after running all tests?

A. View the Class Test Percentage tab on the Apex Class fist view m Salesforce Setup.

B. Select and run the class on the Apex Test Execution page in the Developer Console.

C. View the Code Coverage column in the list view on the Apex Classes page.

D. View Use cede coverage percentage for the class using the Overall Code Coverage panel in the Developer Console Tests tab.

Correct Answer: A

Question 6

Which two sfdx commands can be used to add testing data to a Developer sandbox?

A. Forced: data: object :upsert

B. Forced: data:bulk:upsert

C. Forced: data:async:upsert

D. Forced: data: tree: upsert

Correct Answer: B,D

Question 7

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?

A. Add a new Create Records element.

B. Add a new Update Records element.

C. Add a new Roll back Records element

D. Add a new Get Records element.

Correct Answer: A

Question 8

A developer wants to invoke on outbound message when a record meets a specific criteria.
Which three features satisfy this use case?
Choose 3 answer

A. Process builder can be used to check the record criteria and send an outbound message with Apex Code.

B. Process builder can be used to check the record criteria and send an outbound messagewithout Apex Code.

C. Visual Workflow can be used to check the record criteria and send an outbound message without Apex Code.

D. workflows can be used to check the record criteria and send an outbound message.

E. Approval Process has the capacity to check the record criteria and send an outbound message without Apex Code

Correct Answer: A,D,E

Question 9

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 override void makePayment(Decimal amount) { /*implementation*/ }
}

B. Public class CreditCardPayment extends Payment {
public virtual void makePayment(Decimal amount) { /*implementation*/ }
}

C. Public class CreditCardPayment implements Payment {
public virtual void makePayment(Decimal amount) { /*implementation*/ }
}

D. Public class CreditCardPayment implements Payment {
public override void makePayment(Decimal amount) { /*Implementation*/ }
}

Correct Answer: A

Question 10

Management asked for opportunities to be automatically created for accounts with annual revenue greater than $1,000,000. A developer created the following trigger on the Account object to satisfy this requirement.

Users are able to update the account records via the UI and can see an opportunity created for high annual revenue accounts. However, when the administrator tries to upload a list of 179 accounts using Data Loader, It fails with system. Exception errors.
Which two actions should the developer take to fix the code segment shown above?
Choose 2 answers

A. Use Database.query to query the opportunities.

B. Query for existing opportunities outside the for loop.

C. Check if all the required fields for Opportunity are being added on creation.

D. Move the DML that saves opportunities outside the for loop.

Correct Answer: B,D

Question 11

A developer created a trigger on the Account object and wants to test if the trigger is properly bulklfield. The developer team decided that the trigger should be tested with 200 account records with unique names.
What two things should be done to create the test data within the unit test with the least amount of code? Choose 2 answers A developer created a trigger on the Account object and wants to test if the trigger is properly bulklfield. The developer team decided that the trigger should be tested with 200 account records with unique names.
What two things should be done to create the test data within the unit test with the least amount of code?
Choose 2 answers

A. Use the @isTest(isParallel=true) annotation in the test class.

B. Create a static resource containing test data.

C. Use Test.loadData to populate data in your test methods.

D. Use the @isTest(seeAllData=true) annotation in the test class.

Correct Answer: B,C

Question 12

What does the Lightning Component framework provide to developers?

A. Support for Classic and Lightning UIS.

B. Templates to create custom components.

C. Extended governor limits for applications

D. Prebuilt component that can be reused.

Correct Answer: D

Question 13

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

A. Qo The @testSetup annotation is not supported when the GisTest(SeeAllData=True) annotation is used.

B. Records created in the test setup method cannot be updated in individual test methods.

C. Test data is inserted once for all test methods in a class.

D. A method defined with the @testSetup annotation executes once for each test method in the test class and counts towards system limits.

Correct Answer: A,D

Question 14

Universal Containers has a Visualforce page that displays a table of every Container_c. being ....... Is falling with a view state limit because some of the customers rent over 10,000 containers.
What should a developer change about the Visualforce page to help with the page load errors?

A. Use Lazy loading and a transient List variable.

B. Implement pagination with an OffsetController.

C. Use JavaScript remoting with SOQL Offset.

D. Implement pagination with a StandardSetController,

Correct Answer: D

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Salesforce Trailhead Virtual Bootcamp for Platform Developer I (TVB-450) Free Practice Test