CIS 221 Test #1

(suppose no1=1, no2=2, and no3=3) print("The average is,", (numberAverage))

"The average is, 1.667

A Python line comment begins with ________. A. // B. /* C. # D. $$

#

A Python paragraph comment uses the style ________. A. // comments // B. /* comments */ C. ''' comments ''' D. /# comments #/

''' comments '''

(suppose no1=1, no2=2, and no3=3) numberProduct = no1 * no2 * no3 print("The product is", numberProduct)

The product is 6

If you enter 1 2 3 in one line, when you run this program, what will happen? print("Enter three numbers: ") number1 = eval(input()) number2 = eval(input()) number3 = eval(input()) # Compute average average = (number1 + number2 + number3) / 3 # Display result print(average) A. The program runs correctly and displays 1.0 B. The program runs correctly and displays 2.0 C. The program runs correctly and displays 3.0 D. The program runs correctly and displays 4.0 E. The program will have a runtime error on the input.

The program will have a runtime error on the input.

(suppose no1=1, no2=2, and no3=3) print("The sum is", (no1 + no2 + no3)

The sum is 6

________ is interpreted. A. Python B. C++ C. C D. Ada E. Pascal

Python

____________ is an operating system. A. Java B. C++ C. Windows XP D. Visual Basic E. Python

Windows XP

(suppose no1=1, no2=2, and no3=3) print("Your grade is", no3, no1)

Your grade is 3 1

You can place the line continuation symbol __ at the end of a line to tell the interpreter that the statement is continued on the next line. A. / B. \ C. # D. * E. &

\

Which of the following is NOT a logic error when calculating the average of No1 & No2 a. (No1 + No2)/2 b. they are all logic errors c. No1 + No2/2 d. 2/(No1 + No2)

a. (No1 + No2)/2

In this statement a = b = c = 9, what is the value of b? a. 9 b. unknown c. 3 d. 0

a. 9

What is used to break a long statement into multiple lines? a. \ b. + c. and d. more

a. \

Which of the following is the same as this: a *= b a. b = a * b b. a = a * b c. a * b = b d. b * a = a

b. a = a * b

Python's print statement will print to the a. printer b. screen c. USB or thumb drive

b. screen

Python has a graphics module called a. command b. turtle c. drawing d. graphics

b. turtle

Which of the following code is correct? A. print("Programming is fun") print("Python is fun") B. print("Programming is fun") print("Python is fun") C. print("Programming is fun) print("Python is fun") D. print("Programming is fun) print("Python is fun") A. A B. B C. C D. D

b.print("Programming is fun") print("Python is fun")

Why do computers use zeros and ones? A. because combinations of zeros and ones can represent any numbers and characters. B. because digital devices have two stable states and it is natural to use one state for 0 and the other for 1. C. because binary numbers are simplest. D. because binary numbers are the bases upon which all other number systems are built.

because digital devices have two stable states and it is natural to use one state for 0 and the other for 1.

What is the result of 25 % 4? a. 4 b. 2 c. 1 d. 24 e. 6

c. 1

What is the result of print (int ("5.9"))? a. 5 b. 0 c. 6 d. causes an error e. 9

d. causes an error

Python is a ____ language. a. compiled b. neither c. both d. interpreted

d. interpreted

(suppose no1=1, no2=2, and no3=3) numberDiv = no3 / no2 print("no3 divided by no2", numberdiv)

error

Print('Go Dukes')

error

Which of the following are storage devices? A. floppy disk B. hard disk C. flash stick D. CD-ROM

floppy disk, hard disk, flash stick, CD ROM

________ is the physical aspect of the computer that can be seen. A. Hardware B. Software C. Operating system D. Application program

hardware

(suppose no1=8, no2=3, no3 = no1 / no2) print("int(no3): ", int(no3))

int(no3): 2

In Python, a syntax error is detected by the ________ at _________. A. compiler/at compile time B. interpreter/at runtime C. compiler/at runtime D. interpreter/at compile time

interpreter/at runtime

A ___________ error does not cause the program to abort, but produces incorrect results. A. syntax B. runtime C. logic

logic

(suppose no1=1, no2=2, and no3=3) numberAverage = (no1 + no2 + no2) / 3

logic error

Computer can execute the code in ____________. A. machine language B. assembly language C. high-level language D. none of the above

machine language

The speed of the CPU may be measured in __________.

megahertz and gigahertz

A computer?s _______ is volatile; that is, any information stored in it is lost when the system?s power is turned off. A. floppy disk B. hard disk C. flash stick D. CD-ROM E. memory

memory

Which of the following is a valid identifier? A. $343 B. mile C. 9X D. 8+9 E. max_radius

mile max_radius

Which of the following is a valid identifier? A. import B. mile1 C. MILE D. (red) E. "red"

mile1 MILE

(suppose no1=1, no2=2, and no3=3) numberDiv = no3 / no2 print("no3 divided by no2", numberDiv)

no3 divided by no2 1.5

(suppose no1=8, no2=3, no3 = no1 / no2) print("no3 w/2 dec: "), int(no3*100) / 100)

no3 w/2 dec: 2.66

(suppose no1=8, no2=3, no3 = no1 / no2) print("no3: ", no3)

no3: 2.6666667

no1 = eval(input(number 1?"))

number 1?

no2 = eval(input(number 2?"))

number 2?

no3 = eval(input(number 3?"))

number 3?

In the expression 45 / 4, the values on the left and right of the / symbol are called ____. A. operators B. operands C. parameters D. arguments

operands

To start Python from the command prompt, use the command ________. A. execute python B. run python C. python D. go python

python

To run python script file named t.py, use the command ________. A. execute python t.py B. run python t.py C. python t.py D. go python t.py

python t.py

(suppose no1=8, no2=3, no3 = no1 / no2) print("round(no3): ", round(no3))

round(no3): 3

____________ are instructions to the computer. A. Hardware B. Software C. Programs D. Keyboards

software and programs

what is the function of .split()?

tells the program to separate the words

An identifier can contain digits, but cannot start with a digit? A. true B. false

true

An identifier cannot be a keyword? A. true B. false

true

To draw a circle with radius 50, use ___________. A. turtle.circle(50) B. turtle.circle(100) C. turtle.drawcircle(50) D. turtle.drawCircle(50)

turtle.circle(50)

To move the turtle to a point at (4, 5), use ___________. A. turtle.move(4, 5) B. turtle.moveTo(4, 5) C. turtle.moveto(4, 5) D. turtle.go(4, 5) E. turtle.goto(4, 5)

turtle.goto(4, 5)

To put the pen down, use ___________. A. turtle.penDown() B. turtle.pendown() C. turtle.putDown() D. turtle.down()

turtle.pendown()

To lift the pen, use ___________. A. turtle.penUp() B. turtle.penup() C. turtle.lift() D. turtle.up()

turtle.penup()

To show the current location and direction of the turtle object, use ___________. A. turtle.show() B. turtle.showLocation() C. turtle.showDirection() D. turtle.showturtle() E. turtle.showTurtle()

turtle.showturtle()

Which of the following statements is true? A. Python 3 is a newer version, but it is backward compatible with Python 2. B. Python 3 is a newer version, but it is not backward compatible with Python 2. C. A Python 2 program can always run on a Python 3 interpreter. D. A Python 3 program can always run on a Python 2 interpreter.

Python 3 is a newer version, but it is not backward compatible with Python 2.

Which of the following code is correct? I: print("Programming is fun") print("Python") print("Computer Science") II: print("Programming is fun") print("Python") print("Computer Science") III: print("Programming is fun") print("Python") print("Computer Science") IV: print("Programming is fun") print("Python") print("Computer Science") A. I B. II C. III D. IV

IV: print("Programming is fun") print("Python") print("Computer Science")

____________ is a device to connect a computer to a local area network (LAN). A. Regular modem B. DSL C. Cable modem D. NIC

NIC

(suppose no1=1, no2=2, and no3=3) print("No1 + No2 - No3 is", (no1 + no2 - no3))

No1 + No2 - No3 is 0

One gigabyte is approximately ________ bytes. A. 1 million B. 10 million C. 1 billion D. 1 trillion

1 billion

To following code reads two number. Which of the following is the correct input for the code? x, y = eval(input("Enter two numbers: ")) A. 1 2 B. "1 2" C. 1, 2 D. 1, 2,

1, 2

(suppose no1=8, no2=3) print(no1 + no2)

11

print(5 + 6)

11

(suppose no1=8, no2=3) print(no1 % no2)

2

(suppose no1=8, no2=3) print(no1 // no2)

2

If you enter 1, 2, 3, in one line, when you run this program, what will be displayed? number1, number2, number3 = eval(input("Enter three numbers: ")) # Compute average average = (number1 + number2 + number3) / 3 # Display result print(average) A. 1.0 B. 2.0 C. 3.0 D. 4.0

2.0

(suppose no1=8, no2=3) no3 = no1 / no2

2.6666667

(suppose no1=8, no2=3) print(no1 / no2)

2.6666667

(suppose no1=8, no2=3) print(no1 * no2)

24

(suppose no1=8, no2=3) print(no2)

3

(suppose no1=8, no2=3, no3 = no1 / no2) print(no2)

3

(suppose no1=8, no2=3) print(no1 - no2)

5

(suppose no1=8, no2=3) print(no1 ** no2)

512

(suppose no1=8, no2=3) print(no1)

8

(suppose no1=8, no2=3, no3 = no1 / no2) print(no1)

8

(suppose no1=8, no2=3, no3 = no1 / no2) print(no1) print(no2) no1 += no2 print(no1) no1 -= no2 print(no1) no1 *= no2 print(no1) no1 /= no2 print(no1) no1 //= no2 print(no1) no1 **= no2 print(no1) no1 %= no2

8 3 11 8 24 8 2 8

One byte has ________ bits. A. 4 B. 8 C. 12 D. 16

8 bits

(suppose no1=8, no2=3) no1, no2=eval(input("Enter 2 numbers separated by a comma: "))

8,3

___________ translates high-level language program into machine language program. A. An assembler B. A compiler C. CPU D. The operating system

A compiler

What function do you use to read a string? A. input("Enter a string") B. eval(input("Enter a string")) C. enter("Enter a string") D. eval(enter("Enter a string"))

A. input("Enter a string")

What is the result of 45 // 4? A. 10 B. 11 C. 11.25 D. 12

B. 11

If you enter 1 2 3 in three separate lines, when you run this program, what will be displayed? print("Enter three numbers: ") number1 = eval(input()) number2 = eval(input()) number3 = eval(input()) # Compute average average = (number1 + number2 + number3) / 3 # Display result print(average) A. 1.0 B. 2.0 C. 3.0 D. 4.0

B. 2.0

What is the result of eval("1 + 3 * 2")? A. "1 + 3 * 2" B. 7 C. 8 D. "1 + 6"

B. 7

What is the result of 45 / 4? A. 10 B. 11 C. 11.25 D. 12

C. 11.25

_______ is the code in natural language mixed with some program code. A. Python program B. A Python statement C. Pseudocode D. A flowchart diagram

C. Pseudocode

__________ is the brain of a computer.

CPU

What will be displayed by the following code? x, y = 1, 2 x, y = y, x print(x, y) A. 1 1 B. 2 2 C. 1 2 D. 2 1

D. 2 1

What will be displayed by the following code? x = 1 x = 2 * x + 1 print(x) A. 0 B. 1 C. 2 D. 3 E. 4

D. 3

What will be displayed by the following code? x = 1 x = x + 2.5 print(x) A. 1 B. 2 C. 3 D. 3.5 E. The statements are illegal

D. 3.5

print(ln)

DiGilio

print(ln + "," fn)

DiGilio, Maria

print("Go Dukes")

Go Dukes

Python was created by ____________. A. James Gosling B. Bill Gates C. Steve Jobs D. Guido van Rossum E. Google

Guido van Rossum

print("Hello" + name)

Hello Maria

_____________ is a program that runs on a computer to manage and control a computer's activities. A. Operating system B. Python C. Modem D. Interpreter E. Compiler

Operating system

________ is an object-oriented programming language. A. Java B. C++ C. C D. C# E. Python

Java C++ .C# Python

print(fn)

Maria

fn, ln = input("Enter first and last name (no comma): ").split()

Maria DiGilio

Python syntax is case-sensitive. A. True B. False

True

True or False Python is case sensitive.

True

name=input("What is your name?")

What is your name?