CNIT 155 Final Purdue University 2021

A computer, in some cases, understands more than machine code. T/F

False

Which of the following is an example of software?

A. RAM

B. Motherboard

C. WingIDE 101

D. CPU

C. WingIDE 101

High level programming languages include:

A. Python

B. Java

C. C

D. All of the above

D. All of the above

Examples of operating systems include the following, except:

A. Mac

B. Linux

C. Excel

D. Windows

C. Excel

_______ refers to the tangible part of a computer system.

A. Software

B. Malware

C. Memory

D. Hardware

D. Hardware

What piece of hardware connects all the components and devices of a computer?

A. Motherboard

B. Central Processing Unit (CPU)

C. Hard drive

D. RAM

A. Motherboard

A computer's "working memory" is its:

A. RAM

B. ROM

C. Flash drive

D. CPU

A. RAM

System software provides the real functionality of a computer, helping your computer do specific types of work. T/F

False

Of the options below, which equal one gigabyte?

A. 1024 Megabytes (MB)

B. 1024 Terabytes (TB)

C. 1048576 Bytes

D. 1024 Kilobytes (KB)

A. 1024 Megabytes (MB)

Python is commonly used to create things like websites, games, and graphic interfaces. T/F

True

Examples of application software include all of the following, except:

A. Microsoft Office

B. Google Chrome

C. Brightspace

D. Android

D. Android

Which of the following is an example of an input device?

A. Mouse

B. Speakers

C. Monitor

D. Processor

A. Mouse

A bit is the smallest unit of data in a computer. T/F

True

System software is used for __________.

A. Using the internet

B. Programming code

C. Specialized work for various operations

D. Managing a computer's resources

D. Managing a computer's resources

Python is considered a low-level language. T/F

False

What is Syntax?

A. Rules that say what the program means

B. A translator between the programming language and machine code

C. A tool to find and repair bugs

D. Rules that say what programs look like, and how the statements in the programming language are formed

D. Rules that say what programs look like, and how the statements in the programming language are formed

How many bytes are in a kilobyte?

A. 512

B. 8

C. 1000

D. 1024

D. 1024

Which of the following is not a device used to store data in a computer?

A. DVD

B. Flash Drive

C. Hard Drive

D. RAM

D. RAM

A string is a numerical type of data. T/F

False

Which of the following is an example of an integer?

A. True

B. "Hello, World!"

C. 4

D. 29.35

C. 4

What is the extension of the source file for a python program?

A. .python

B. .py

C. .source

D. .exe

B. .py

String values can never be converted to integer values. T/F

False

"Hello, World!" is a string T/F

True

Which of the following displays a proper string literal?

A. ProgrammerDialogue = 'Coding in python is fun!'

B. CNIT = I am a CIT student.

C. PurdueString = I attend Purdue University.

D. All the above

A. ProgrammerDialogue = 'Coding in python is fun!'

Python needs a main function to operate. T/F

False

Which of the following is an example of a comment in python?

A. // This is a comment in python.

B. # This is a comment in python.

C. $ This is a comment in python

D. * This is a comment in python.

B. # This is a comment in python.

Which of the following is an example of a boolean value?

A. "Welcome"

B. True

C. 23.546

D. 4

B. True

Which of the following is a legal variable name?

A. student name

B. student-name

C. 1studentname

D. studentname1

D. studentname1

print() is an example of an input T/F

False

Which of the following is true about an integer?

A. True is an integer

B. An integer is a textual data type

C. An integer can contain decimals

D. An integer can be stored as a variable

D. An integer can be stored as a variable

Rules of naming identifiers include the following, except:

A. Can include a space.

B. Starting with a letter or an underscore, followed by a sequence of letters, digits, and underscores.

C. The name is case sensitive.

D. The name must not be a reserved/keyword.

A. Can include a space.

What is the name of the python functions that tells you a class's type?

A. Type

B. Print

C. Define

D. Input

A. Type

Values cannot be converted from one type to another T/F

False

What is the value of the following expression?

9 + 3 2 * 2 / (18-16)

15

Which of the following operators has the highest priority in an expression?

A. +

B. /

C. ()

D. **

C. ()

Which is the output of the following code?

x = John

print("Hello ", x)

Hello John

Which of the following is a proper name for a variable?

A. True

B. StudentID

C. Class Roster

D. 1studentname

B. StudentID

What is the output of the following code?

Output = 11 / 2

print(int(Output))

5

Boolean values are case sensitive T/F

True

The print function does not return a value T/F

True

Which of the following import statements is correct to use math functions?

A. import math from *

B. import math

C. from * import math

D. from math import all

B. import math

The ^ operator is the same as the ** operator in Python. T/F

False

What is the output of the following code?

StudentIDJohn = 84219643

StudentIDEmily = 41305431

print(str(StudentIDJohn) + " " + str(StudentIDEmily))

84219643 41305431

Which of the following will increment the data variable by 4?

A. data %= 4

B. data += 4

C. data = 4

D. data *= 4

B. data += 4

7%3 is the same as 7//3. T/F

False

Any inputted data is considered string data, regardless of what the user inputted. T/F

True

Which of the following is a valid identifier in Python?

A. first-name

B. radius 3

C. vel12city

D. 1smith

C. vel12ciry

Which data type is 19.256?

A. integer

B. string

C. float

D. list

C. float

Which of the following is NOT a rule for naming an identifier?

A. The name must not be a reserved/keyword.

B. Starts with a letter, underscore, or number, followed by a sequence of letters, digits, and underscores.

C. It must not include a space.

D. The name is case sensitive.

B. Starts with a letter, underscore, or number, followed by a sequence of letters, digits, and underscores.

Evaluate 10 % 3.

A. 1

B. 3.33

C. 30

D. 3

A. 1

Which expression is written correctly?

A. 2x

B. 3(2a)

C. 3(4 + 3)

D. 5 * (7 + 4)

D. 5 * (7 + 4)

Which of the following is equal to n = n - 2?

A. n =- 2

B. n -= 2

C. n = -2

D. n = 2 - 2

B. n -= 2

The expression (2 +2 / 2 * 3) results in an integer value. T/F

False

Evaluate 12 + (3 ** 2)

21

Exponentiation has the highest priority, and is always calculated first. T/F

False

What is the output of the following code?

Day = 22

Month = 11

Year = 2021

print(Month, Day, Year, sep="/")

11/22/2021

Evaluate 20 // 3

6

(// is floor division, rounding down to the nearest whole number)

Evaluate 40 / (4 + 6) - 3*2

-2

Syntax Errors occur when a program provides you with actual outputs that are different from the desired outputs (The program runs but it gives wrong results). T/F

False

Assume a = 7;

b = 2;

Evaluate a // b.

3

Operations cannot be performed on strings. T/F

False

What is the term for a programming error?

A. Problem

B. Bug

C. Error

D. Syntax

B. Bug

Which of the following add up all the values in the list mylist and sets it to the variable total?

A. total = add(mylist)

B. total = sum(mylist)

C. total = count(mylist)

D. total = total(mylist)

B. total = sum(mylist)

Which of the following refer to the last element in a list names?

A. names[len(names)]

B. names[len(names)]

C. names[-0]

D. names[-1]

D. names[-1]

The list needs one more city added to the end - "Cario". Which piece of code below would do this?

cityList = ["Washington D.C.", "London", "Sydney", "Rio de Janeiro", "Seoul"]

A. cityList.append("Cario")

B. cityList.add("Cario")

C. cityList.push("Cario")

D. cityList.append[Cario"]

A. cityList.append("Cario")

Suppose list1 is [1, 3, 2], What is the result of list1 * 2?

[1, 3, 2, 1, 3, 2]

Which of the following would declare an empty list?

A. EmptyList = []

B. EmptyList[]

C. EmptyList = ()

D. EmptyList = ["empty"]

A. EmptyList = []

What output will this code produce?

color = []

color = ["blue", "green", "red"]

color.reverse()

print(color)

["red", "green", "blue"]

What will be the value of m[1][2] If you have the following m list:

m = [[1, 2, 3, 4, 5], [6, 7, 8, 9, 10], [11, 12, 13, 14, 15]]

8

In the following list, what is the value at index 1 (names[1])?

names = ['Fred', 'John', 'Sue']

John

Which of the following is the correct code for creating a list of names?

A. nameList = ['John', 'Harry', 'Jesse', 'John', 'Harry', 'Harry']

B. nameList = John, Harry, Jesse, John, Harry, Harry

C. nameList = ('John', 'Harry', 'Jesse', 'John', 'Harry', 'Harry')

D. nameList = [John, Harry, Jesse, John, Harry, Harry]

A. nameList = ['John', 'Harry', 'Jesse', 'John', 'Harry', 'Harry']

Given a tuple t = (3, 6, 2, 4), which of the following will result in errors?

A. print(t[2])

B. t[0] = 5

C. print(max(t))

D. print(len(t))

B. t[0] = 5

What is the output of the following code segement?

sampleList = [10, 20, 30, 40, 50]

sampleList.append(60)

print(sampleList)

sampleList.append(60)

print(sampleList)

[10, 20, 30, 40, 50, 60,]

[10, 20, 30, 40, 50, 60, 60]

What is the output of the following list operation?

cityList = ["Washington D.C.", "London", "Sydney", "Rio de Janeiro", "Seoul"]

print(cityList[1:3])

["London", "Sydney"]

Which of the following will remove the second value from the list sampleList?

A. del sampleList[2]

B. remove sampleList[2]

C. del sampleList[1]

D. remove sampleList[1]

C. del sampleList[1]

What is the output of the following code?

sampleList = [10, 20, 30, 40, 50]

sampleList[-2] = 20

print(sampleList)

[10, 20, 30, 20, 50]

What is the output of the following print statement?

sampleList = [10, 20, 30, 40, 50, 60]

print(sampleList[-2])

50

Which of the following options will correctly add the elements of ListTwo to ListOne in Python.

ListOne = ["a", "b", "c", "d"]

ListTwo = ["e", "f", "g"]

A. ListOne = ListOne.extend(ListTwo)

B. ListOne.add(ListTwo)

C. ListOne = ListOne +ListTwo

D. ListOne + ListTwo

C. ListOne = ListOne +ListTwo

Which output will the following code produce?

color = []

color = ["blue", "green", "red"]

print(color[2])

red

Which of the following will randomize the order of elements in a list sampleList? Assume that the required library has been imported correctly.

A. sort(sampleList)

B. shuffle(sampleList)

C. random(sampleList)

D. randomize(sampleList)

B. shuffle(sampleList)

list1 = [1, 2, 3, 4]

list2 = [5, 6, 7, 8]

print ( len(list1 + list2) )

8

Passing a list as an argument passes a copy of the list. T/F

False

Lists are mutable T/F

True

The built-in function split() return a list T/F

True

The index of the first value in a python list is 1 T/F

False

Lists are a type of data structure that can store many values under one name T/F

True

Analyze the following code:

count = 0

while count < 100:

#Point A

print("Welcome to Python!")

count += 1

#Point B

#Point C

A. count < 100 is always True at point c

B. count < 100 is always True at point b

C. All answers are False

D. count < 100 is always True at point A

B. count < 100 is always True at point b

While loops are pretest loops T/F

True

In Python, the division operator (/) gives a float result, even if both of the numbers are integers T/F

False

What is the output of the following code?

n = 20

while (n <= 25):

print(n,"\n")

n = n+1

20,21,22,23,24,25

If we want score to be a random number in the range of [10.0, 50.0), which statement would be correct (assuming the random library has been imported)?

A. score = 40.0 * random + 10.0

B. score = 50.0 * random + 10.0

C. score = 10.0 * random + 40.0

D. score = random() + 50.0

A. score = 40.0 * random + 10.0

The expression 3 ** 3 - (6-2)/2 has the value _____. Is it an integer or a float value? __________________.

A. 7, int

B. 25, float

C. 7, float

D. 25, int

B. 25, float

Suppose you're given a list of words, intList. Write Python code that will print one line for each number, repeating that number twice. For example, if intList is [60, 70, 80, 90], then your code would print:

60 60

70 70

80 80

90 90

def main():

intList = [60, 70, 80, 90]

for i in range(0, len(intList)):

print(intList[i], " ", intList[i], "\n")

i += 1

main()

Write a Python program to check if the letter 'e' is in a given string:

Example:

Enter a string: play

The letter e is not exist in the string.

Enter a string: Umbrella

The letter e is exist in the string.

def main():

userinput = input("Enter a string: ")

userinputupper = userinput.upper()

numE = userinputupper.count("E")

if numE > 0:

print("The letter e is exist in the string.")

else:

print("The letter e is not exist in the string.")

main()

Write a Python program that requests an integer from the user. If the value is between 1 and 100 inclusive, print "OK". Otherwise, do not print anything.

The input function returns a boolean if the user types in True. T/F

True

Strings can be used as a sequence in a for loop. T/F

True

Which of the following range function syntax is incorrect?

A. range(0, 3, 5)

B. range(10, 4, -1)

C. range(1, 3, 1)

D. range(1, 2.5, 4.5)

D. range(1, 2.5, 4.5)