Programming 1 Quiz

The variable age is to be used to represent a person’s age, in years. Which of the following is the most appropriate data type for age?

• Boolean

• number

• string

• list

The variable isOpen is to be used to indicate whether or not a store is currently open. Which of the following is the most appropriate data type for isOpen?

• Boolean

• number

• string

• list

Let n be an integer value. Which of the following expressions evaluates to true if and only if n is a two-digit integer (i.e., in the range from 10 to 99, inclusive)?

• n = (n MOD 100)

• (n ≥ 10) AND (n < 100)

• (n < 10) AND (n ≥ 100)

• (n > 10) AND (n < 99)

Consider the following code segment. x ← 23 z ← x MOD y Which of the following initial values of the variable y would result in the variable z being set to 2 after the code segment is executed?

• 1

• 2

• 3

• 4

What is displayed as a result of executing the code segment?

• 10 20 30 40

• 21 30 40 50

• 21 40 30 40

• 21 40 30 50

Consider the following code segment.:

x ← 25

y ← 50

z ← 75

x ← y

y ← z

z ← x

Which of the variables have the value 50 after executing the code segment?

• x only

• y only

• x and z only

• x, y, and z

Fill in the blank: To find the distance between num1 and num2, you should ________ the absolute values of num1 and num2.

• Add

• Subtract

• Multiply

• Divide

A teacher is writing a code segment that will use variables to represent a student’s name and whether or not the student is currently absent. Which of the following variables are most appropriate for the code segment?

• A string variable named s and a Boolean variable named a

• A string variable named s and a numeric variable named n

• A string variable named studentName and a Boolean variable named isAbsent

• A string variable named studentName and a numeric variable named numAbsences

To attend a particular camp, a student must be either at least 13 years old or in grade 9 or higher, but must not yet be 18 years old. Let age represent a student’s age and let grade represent the student’s grade level. Which of the following expressions evaluates to true if the student is eligible to attend the camp and evaluates to false otherwise?

• ((age ≥ 13) OR (grade ≥ 9)) AND (age ≤ 18)

• ((age ≥ 13) OR (grade ≥ 9)) AND (age < 18)

• ((age ≥ 13) OR (grade ≥ 9)) OR (age ≤ 18)

• ((age ≥ 13) OR (grade ≥ 9)) OR (age < 18)