C# Programming Mock Exam 2.2

Which of the following operators is used to check if two values are equal in C#?

• !=

• ==

• =

• >=

What is the output of the following C# code when dividing two integers? int x = 8; int y = 3; Console.WriteLine(x / y);

• 2

• 2.666

• 3

• An error

Which of the following is a valid looping construct in C#?

• for

• until

• while

• do-while

Which of the following is NOT a valid variable name in C#?

• varName

• int_123

• 123var

• myVariable

In a for loop, what is the purpose of the increment section?

• To set the initial value of the loop counter

• To update the loop counter

• To specify the condition for loop termination

• To declare and initialize the loop counter

Which C# data type should you use for a variable with large decimal values by default?

• double

• char

• decimal

• int

What happens if an exception is caught in C#?

• The program continues running

• The program crashes

• The exception is ignored

• The system recovers automatically

How do you define an integer array with 5 elements in C#?

• int[] arr = new int(5);

• int arr[5];

• int[] arr = new int[5];

• int[] arr = new string[5];

What is the output of this C# code? int y = 6; y--; Console.WriteLine(y);

• 6

• 5

• 4

• An error

In C#, which method is used to reverse an array?

• Reverse()

• Array.Reverse()

• Array.Order()

• Array.Sort()