Control Instructions - General Questions

What is the output of the following program?

int i = 10;
do { i++; } while (i < 5);
Console.WriteLine(i);

What is the output of the following program?

string grade = "B";
switch (grade)
{
    case "A": Console.Write("Top"); break;
    case "B":
    case "C": Console.Write("Pass"); break;
    default: Console.Write("Fail"); break;
}

Which loop is best for visiting every element of a collection?

What is the output of the following program?

for (int i = 1; i <= 5; i++)
{
    if (i == 3) continue;
    Console.Write(i);
}

What is the output of the following program?

int x = 15;
if (x % 3 == 0 && x % 5 == 0) Console.Write("FizzBuzz");
else if (x % 3 == 0) Console.Write("Fizz");
else Console.Write(x);