Question 1 What is a variable?

A. A value that changes over time

B. A memory location with a unique name and a data type

C. A random value

D. A location for storing only whole numbers.

Question 2 Which data type could be used to store a user's initials?

A. int

B. double

C. string

D. bool

Question 3 Which data type would be used to store 99.9?

A. int

B. double

C. char

D. string

Question 4 Which part of the following statement is the variable identifier?

string firstName = "Madison";

A. firstName

B. string

C. "Madison"

D. string firstName

Question 5 Which of the following could be used to store a value of 15,000?

Select ALL that apply.

A. int

B. double

C. float

D. char

E. short

F. string

G. ulong

Question 6 The following statement is a valid variable declaration and initialization:

double var1 = "101.45";

A. True

B. False

Question 7 How would the following expression evaluate in C#? Consider both order of operations and data types.

25 / 2 + 4 * 2.5

Select the most correct answer.

A. 22.0

B. 22

C. 22.5

D. 41.25

Question 8 How would the following expression evaluate in C#? Consider both order of operations and data types.

4 - 9 % 6

Select the most correct answer.

A. -1

B. 3

C. 0

D. 1

Question 9 Suppose you needed a variable to store the radius of a circle with up to 5 decimal digits of precision. An appropriate data type to use in this situation would be Blank 1.

Fill in the blank: ________________________________

Question 10

Complete each variable declaration by matching it to an appropriate literal value.

init var1 1.618

double var2 "Hello!"

char var3 42

string var4 10.1m

decimal var5 'K'