You are developing a C# application that includes a class named Product. The following code segment defines the Product class:

You implement System.ComponentModel.DataAnnotations.IValidateableObject interface to provide a way to validate the Product object.
The Product object has the following requirements:
* The Id property must have a value greater than zero.
* The Name property must have a value other than empty or null.
You need to validate the Product object. Which code segment should you use?

• A.Option C
• B.Option D
• C.Option A
• D.Option B

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You have the following code:

You need to retrieve all of the numbers from the items variable that are greater than 80.
Which code should you use?

• A.Option D
• B.Option C
• C.Option A
• D.Option B

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You are creating a class named Data that includes a dictionary object named _data.
You need to allow the garbage collection process to collect the references of the _data object.
How should you complete the relevant code? (To answer, drag the appropriate code segments to the correct locations in the answer area. Each code segment may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.)

Correct Answer:

Explanation

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You are evaluating a method that calculates loan interest- The application includes the following code segment. (Line numbers are included for reference only.)

When the loanTerm value is 3 and the loanAmount value is 9750, the loanRate must be set to 8.25 percent. You need to adjust the loanRate value to meet the requirements.
What should you do?

• A.Replace line 15 with the following code segment: loanRate = 0.0825m;
• B.Replace line 17 with the following code segment: interestAmount = loanAmount * 0.0825m * loanTerm;
• C.Replace line 07 with the following code segment: loanRate = 0.0825m;
• D.Replace line 04 with the following code segment: decimal loanRate = 0.0325m;

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You are modifying an existing application that manages employee payroll. The application includes a class named PayrollProcessor. The PayrollProcessor class connects to a payroll database and processes batches of paychecks once a week.
You need to ensure that the PayrollProcessor class supports iteration and releases database connections after the batch processing completes.
Which two interfaces should you implement? (Each correct answer presents part of the complete solution. Choose two.)

• A.IEquatable
• B.IEnumerable
• C.IDisposable
• D.IComparable

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