L2

Question 1

What is a variable?

Answer 1

A variable is a named memory location that stores a value of a specific type.

Question 2

Which data type is best for storing monetary values?

Answer 2

decimal

Question 3

What is the default value of a bool variable?

Answer 3

false

Question 4

Which data type has the highest precision for real numbers?

Answer 4

decimal

Question 5

Where are value types stored in memory?

Answer 5

Stack

Question 6

What will be the output of the following code?

int x = 5;
x = x + 3;
Console.WriteLine(x);

Answer 6

8

Question 7

Which data type should you use for storing a person’s weight in kilograms?

Answer 7

double

Question 8

What will happen in this code?

const int MaxCount = 50;
MaxCount = 100;

Answer 8

It will cause an error.

Question 9

What is the difference between float, double, and decimal?

Answer 9

float is less precise, double is more precise, and decimal is for high precision calculations.

Question 10

What is the difference between a value type and a reference type?

Answer 10

Value types store data directly, and reference types store memory addresses.