Which three declarative fields are correctly mapped to variable types in Apex? (Choose three.)

• A.Checkbox maps to Boolean.
• B.Number maps to Integer.
• C.Date/Time maps to Dateline.
• D.TextArea maps to List of type String.
• E.Number maps to Decimal.

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What are three techniques that a developer can use to invoke an anonymous block of code? (Choose three.)

• A.Create a Visualforce page that uses a controller class that is declared without sharing.
• B.Create and execute a test method that does not specify a runAs() call.
• C.Run code using the Anonymous Apex feature of the Developer's IDE.
• D.Use the SOAP API to make a call to execute anonymous code.
• E.Type code into the Developer Console and execute it directly.

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While writing an Apex class, a developer wants to make sure that all functionality being developed is handled as specified by the requirements.
Which approach should the developer use to be sure that the Apex class is working according to specifications?

• A.Create a test class to execute the business logic and run the test in the Developer Console.
• B.Run the code in an Execute Anonymous block in the Developer Console.
• C.Include a savepoint and Database. rollback ().
• D.Include a try/catch block to the Apex class.

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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.Check if all the required fields for Opportunity are being added on creation.
• B.Move the DML that saves opportunities outside the for loop.
• C.Use Database.query to query the opportunities.
• D.Query for existing opportunities outside the for loop.

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

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