You are developing a class named EmployeeRoster. The following code implements the
EmployeeRoster class. (Line numbers are included for reference only.)

You create the following unit test method to test the EmployeeRoster class implementation:

You need to ensure that the unit test will pass.
What should you do?

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

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You are creating a class named Employee. The class exposes a string property named EmployeeType.
The following code segment defines the Employee class. (Line numbers are included for reference only.)

The EmployeeType property value must meet the following requirements:
The value must be accessed only by code within the Employee class or within a class derived from the

Employee class.
The value must be modified only by code within the Employee class.

You need to ensure that the implementation of the EmployeeType property meets the requirements.
Which two actions should you perform? (Each correct answer represents part of the complete solution.
Choose two.)

• A.Replace line 03 with the following code segment: protected string EmployeeType
• B.Replace line 06 with the following code segment: private set;
• C.Replace line 05 with the following code segment: protected get;
• D.Replace line 03 with the following code segment: public string EmployeeType
• E.Replace line 06 with the following code segment: protected set;
• F.Replace line 05 with the following code segment: private get;

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You have an application that will send confidential information to a Web server. You need to ensure that the data is encrypted when it is sent across the network. Which class should you use?

• A.PipeStream
• B.NegotiateStream
• C.CryptoStream
• D.AuthenticatedStream

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You have the following class definitions.

There might be other classes derived from Shape.
You are creating an application that evaluates whether an object is a square, a rectangle, or another shape.
You need to implement a switch statement that meets the following requirements:
* If the shape variable is of the Rectangle type, and the width and the height are NOT equal, the output must be Rectangle.
* If the shape variable is of the Rectangle type, and the width and the height are equal, the output must be Square.
* If the shape variable is of any other Shape derived type, the output must be Unknown.
* If the shape variable does NOT refer to an object, the output must be Empty.
How should you complete the code? To answer, select the appropriate options in the answer area
.
NOTE: Each correct selection is worth one point.

Correct Answer:

Explanation:
Box 1: if
Box 2: Rectangle r when (r.Width ! = r.Height):
Box 3: default
Box 4: case null

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You are developing an application by using C#. The application will output the text string "First Line" followed by the text string "Second Line".
You need to ensure that an empty line separates the text strings.
Which four code segments should you use in sequence? (To answer, move the appropriate code segments to the answer area and arrange them in the correct order.)

Correct Answer:

Explanation
Box 1:

First we create the variable.
Box 2:

We create the first text line.
Box 3:

We add a blank line.
The StringBuilder.AppendLine method appends the default line terminator to the end of the current StringBuilder object.
Box 4:

Finally we add the second line.

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