Python Summative 1

Question 1

One of the most popular programming languages

Answer 1

Python

Question 2

The strengths of Python are the following:

Answer 2

Ease of Use
Readable
Complete
Cross-platform
Free

Question 3

familiar constructs (loops, arrays, and so forth)

Answer 3

Ease of Use

Question 4

easier it is to debug, maintain, and modify.

Answer 4

Readable

Question 5

its standard library comes with modules

Answer 5

Complete

Question 6

Windows, Mac, Linux, UNIX, and so on.

Answer 6

Cross-platform

Question 7

developed under the open-source model

Answer 7

Free

Question 8

Many applications of Python

Answer 8

data science, scientific research, web development, etc.

Question 9

It is recommended to install Python that comes with the_______

Answer 9

Anaconda distribution.

Question 10

Browser-based application that provides an environment for running and testing Python codes

Answer 10

Jupyter

Question 11

ideal for documentation purposes which make both ease of sharing and code replicability possible

Answer 11

Jupyter

Question 12

When launching Jupyter, notice that:

Answer 12

opens a browser window
command line interface (a.k.a. Jupyter Notebook server)

Question 13

This enables users to access Jupyter Notebook on their localhost

Answer 13

command line interface (a.k.a. Jupyter Notebook server)

Question 14

The other component of Jupyter is a dashboard which is accessible via a web browser

Answer 14

Dashboard

Question 15

The URl is ________ which indicates its connection to the Jupyter Notebook Server.

Answer 15

localhost:8888

Question 16

When commands were executed, it is actually executed in the _________

Answer 16

Notebook Server

Question 17

The _____ displays files and folders that are in the home directory

Answer 17

dashboard

Question 18

Allows to create a folder to where Python notebooks were placed and then, proceed with creating a new Python notebook

Answer 18

Dashboard

Question 19

It is a place to write in code or text

Answer 19

Cell

Question 20

A cell is indicated by a _____, which is enclosed in a box

Answer 20

cell block

Question 21

Cell types:

Answer 21

code cell
markdown cell

Question 22

The _______ is intended for typing in and run python codes.

Answer 22

code cell

Question 23

Printing hello world in a code cell requires ______

Answer 23

print()

Question 24

Markdown cell allows to create formatted text:

Answer 24

a header for a section by using #
header for a subsection by using ##
bold text by enclosing it in two asterisks

Question 25

make sure to first select ______ from the pull-down list

Answer 25

‘Markdown’

Question 26

Jupyter functions in mainly two modes:

Answer 26

edit mode
command mode

Question 27

is indicated by a green line in the leftmost part of an active cell

Answer 27

edit mode

Question 28

In ______, we can type in our codes or markdown text

Answer 28

edit mode

Question 29

is indicated by a blue line in the leftmost part of an active cell

Answer 29

Command mode

Question 30

What is the output of the given code:
print (“Hello World!”)

Answer 30

Hello World!

Question 31

Jupyter assigns an _____ to remember which codes are executed first

Answer 31

execution number

Question 32

This number is reflected in the rightmost part of executed code cells

Answer 32

Execution Numbers

Question 33

print()

Answer 33

print or output whatever is inside the open and close parentheses.

Question 34

“Hello world!” is an example of a data type called ____

Answer 34

string

Question 35

Any characters enclosed in _______ will be treated by Python as a string

Answer 35

quotations (either single or double quotation)

Question 36

Python can be used to evaluate numerical expression in a code cell

Answer 36

Python as Calculator

Question 37

With print(), joining plain text with _______ is possible

Answer 37

values of numerical expression

Question 38

What is the output of the given code:
print(“16 x 24 = “, 16*24)

Answer 38

16 x 24 = 384

Question 39

Basic Numerical Operations

Answer 39

addition( + )
subtraction ( - )
multiplication ( * )
division ( / )
exponentiation (**)
modulo ( % )
integer division ( / /)

Question 40

As in calculators, ______ is used for expressions with many operators

Answer 40

PEMDAS

Question 41

What is the output of the given code:
3+4*5

Answer 41

23

Question 42

What is the output of the given code:
(3*4)/(2**2 + 4/2)

Answer 42

2

Question 43

an external python file that can be imported to a current python file.

Answer 43

Module

Question 44

In Jupyter, to have a quick view of the available functions in the module, type the ________

Answer 44

module name + dot + TAB

Question 45

These mathematical functions are executed via
___

Answer 45

math .function_name

Question 46

The inputs to them are always placed ______ that are connected to the function name

Answer 46

inside of parentheses

Question 47

Aside from numerical expressions, Python can be used to compare values

Answer 47

Logical Operators

Question 48

What is the output of the given code:
5 > 4

Answer 48

TRUE

Question 49

What is the output of the given code:
51.34 < 24.78

Answer 49

TRUE

Question 50

What is the output of the given code:
(1+3) == (2 + 2)

Answer 50

TRUE

Question 51

What is the output of the given code:
(1+3) != (2+2)

Answer 51

FALSE

Question 52

The keywords ______ when dealing with multiple comparisons

Answer 52

and
or

Question 53

The keyword _____ is used to denote negation of a comparison result

Answer 53

not

Question 54

Boolean bool as data type can be ____

Answer 54

printed

Question 55

What is the output of the given code:
(5>4) and (4<5)

Answer 55

TRUE

Question 56

What is the output of the given code:
(5>4) or (5<4)

Answer 56

TRUE

Question 57

What is the output of the given code:
not 7 > 3

Answer 57

FALSE

Question 58

What is the output of the given code:
type(5>4)

Answer 58

bool

Question 59

What is the output of the given code:
type((1+3) > (2+5))

Answer 59

FALSE

Question 60

(72460*60) > 100000

Answer 60

TRUE

Question 61

A ______ is a named value (e.g. name, age, speed, area).

Answer 61

variable

Question 62

It gives a method to remember and reuse values and past calculations

Answer 62

Variables

Question 63

What is the output of the given code:
name = “Juan”
print(name, “is a student”)
print(name, “is 16 years old”)
print(name, “likes programming”)

Answer 63

Juan is a student
Juan is 16 years old
Juan likes programming

Question 64

What is the output of the given code:
age = 24
year = 2024 - age
print (“You are”, age, “years old)
print(“You were born in”, year)

Answer 64

You are 24 years old
You were born in 2000

Question 65

Jupyter makes it possible to see all the variables in the current notebook through the magic command ______.

Answer 65

%whos

Question 66

______specify the type of data that can be stored inside a variable

Answer 66

Data types

Question 67

Numeric Classes

Answer 67

int, float, complex

Question 68

holds numeric values

Answer 68

Numeric

Question 69

String Classes

Answer 69

str

Question 70

holds sequence of characters

Answer 70

String

Question 71

Sequence Classes

Answer 71

list
tuple
range

Question 72

holds collection of items

Answer 72

Sequence

Question 73

Mapping Classes

Answer 73

dict

Question 74

holds data in key-value pair form

Answer 74

Mapping

Question 75

Boolean Classes

Answer 75

bool

Question 76

holds either True or False

Answer 76

Boolean

Question 77

Set Classes

Answer 77

set
frozenset

Question 78

hold collection of unique items

Answer 78

Set
frozenset

Question 79

Use the command _____ to determine the type of data stored in variable

Answer 79

type()

Question 80

What is the output of the given code:
var1 = 15
print(var1, ‘is of type’, type(var1))
var2 = 93.0
print(var2, ‘is of type’, type(var2))
var3 = 61+4j
print(var3, ‘is of type’, type(var3))

Answer 80

15 is of type
93.0 is of type
(61+4j) is of type

Question 81

takes user input

Answer 81

input()

Question 82

converts a value to integer type

Answer 82

int()

Question 83

converts a value to floating point type

Answer 83

float()

Question 84

rounds a value to a specified precision

Answer 84

round()

Question 85

What is the output of the following:
y = 1.387668
round(y,2)

Answer 85

1.39

Question 86

What is the output of the given code:
user_in = input(“Enter a temperature in Celsius: “)
celsius = float(user_in)
fahrenheit = celsius * 9 / 5 + 32
print(“Temperature in Fahrenheit is “, fahrenheit)

Answer 86

Enter temperature in Celsius: 1
Tempereature in Fahrenheit is 33.8

Question 87

What is the output of the given code:
days = int(input(“Enter number of days: “))
seconds = days2460*60
print(“Equivalent number of seconds: “, seconds)

Answer 87

Enter number of days: 1
Equivalent number of seconds: 86400

Question 88

______ are code constructs that execute a block of code depending on a set of conditional criteria

Answer 88

Branching statements in Python

Question 89

These criteria are written as _______ and when satisfied, they execute a corresponding set of instructions

Answer 89

logical expressions,

Question 90

______ refers to the order of execution of computer instructions

Answer 90

Control flow

Question 91

The assessment of conditions at each branch in a computer program depends on evaluating logical statements, which yield Boolean values through comparison operations on Python’s primitive data types:
int (integer), float (floating-point), str (string), and bool (Boolean)

Answer 91

Comparison Operators

Question 92

An ______ statement in Python signifies an evaluation of its input logical expression

Answer 92

if

Question 93

The if statement’s code block will be executed only if the expression evaluates to a _____ value.

Answer 93

TRUE

Question 94

syntax for an if statement

Answer 94

if :
<code></code>

Question 95

A variant of the If statement is the ____ statement.

Answer 95

If-Else

Question 96

In this variant, a separate else code block is executed if the input logical expression of the if statement evaluates to False

Answer 96

If-Else

Question 97

The syntax for an If-Else statement is as follows:

Answer 97

if :

else:

Question 98

The _____ statement is another extension of the if statement.

Answer 98

if-elif-else

Question 99

It can provide a second if condition that will be evaluated if the first if condition evaluates to False

Answer 99

if-elif-else

Question 100

The syntax for an if-elif-else statement is as follows:

Answer 100

if :

elif :

else:

Question 101

The if code block will only execute if the if logical expression evaluates to ____. Else, the elif code block executes of the elif logical expression evaluates to _____. Else, the else code block executes by _____

Answer 101

TRUE
TRUE
Default

Question 102

One of the most common task when working on a collection of items is to perform sequence of instructions over each

Answer 102

Repetitions or Loop

Question 103

There are three main ways for Repeitions or Loop:

Answer 103

for loop
while loop
list comprehension

Question 104

is used for iterating over a sequence (that is either a list, a tuple, a dictionary, a set, or a string)

Answer 104

for loop

Question 105

A for loop is used for iterating over a sequence ______

Answer 105

(that is either a list, a tuple, a dictionary, a set, or a string)

Question 106

Syntax of for loop

Answer 106

for looping_variable in sequence:
code block

Question 107

Note:

Use of colon
Uniform indent for all lines
in code block

Answer 107

for loop

Question 108

What is the output of the following:
for n in range(5)
print(n)

Answer 108

0
1
2
3
4

Question 109

What is the output of the following:
word = “banana”
for i in range(len(word)):
n = i+1
print(n, word[:n])

Answer 109

1 b
2 ba
3 ban
4 bana
5 banan
6 banana

Question 110

When code block has multiple instructions, all lines must have the _____

Answer 110

same indent

Question 111

“What is the output of the following:
dict1 = {“one”:1, “two”:2, “three”:3}

for key, value in dict1.items():
print(key, value)

Answer 111

one 1
two 2
three 3

Question 112

A common way to access items of a dictionary is _____

Answer 112

using for loop

Question 113

The can execute a set of statements as long as a condition is true

Answer 113

while loop

Question 114

Syntax of while loop

Answer 114

while logical expression:
code block

Question 115

“What is the output of the following:
n = 0
while n<5:
print(n)
n=n+1

Answer 115

0
1
2
3
4

Question 116

To terminate an infinite loop, manually press the black square button in the menu indicating

Answer 116

‘kernel interruption.’

Question 117

A construct short, and elegant way for creating a list based on existing list

Answer 117

List Comprehension

Question 118

“What is the output of the following:
nums = [0, 1, 2, 3, 4]
nums_squared = [n**2 for n in nums]
nums_squared

Answer 118

[0, 1, 4, 9, 16]

Question 119

“What is the output of the following:
nums_square_even = [n**2 for n in nums if n%2 == 0]
nums_squared_even

Answer 119

[0, 4, 16]

Question 120

Which among these best describes the strength of Python in terms of readable?

Answer 120

easier it is to debug, maintain, and modify

Question 121

The ___________ is intended for typing in and run python codes.

Answer 121

code cell

Question 122

Which among these best describes the strength of Python in terms of ease of use?

Answer 122

familiar constructs (loops, arrays, and so forth)

Question 123

The edit and ______ mode are mainly two modes in Jupyter functions.

Answer 123

command

Question 124

Consider the following code segment:

sum=0.0

while true:

number=raw_input(“Enter a number: “)

if number==””:

   break

sum += float(number)

How many iterations does this loop perform?

Answer 124

none

Question 125

This command displays the datatype of a variable.

Answer 125

type

Question 126

Let x = 8 and y = 2. Write the values of the expression: x + y * 3

Answer 126

14

Question 127

Variables are important because it gives a method to remember and reuse values and __________calculations.

Answer 127

past

Question 128

Which of the following does not hold a collection?

Answer 128

set

Question 129

Complete the code to display the output below:

F

FE

FEU

FEUT

FEUTE

FEUTEC

FEUTECH

word = “FEUTECH”

for i in range(_______):

 n=i+1

 print(\_\_, word[:n])

Answer 129

len(word), i

Question 130

It is where functions and other resources are coded in.

Answer 130

module

Question 131

Let the variable x be “dog” and the variable y be “cat”. Write the code of this result: the dog chases the cat.

Answer 131

“the “ + x + “ chases the “ + y

Question 132

Let the variable x be “dog” and the variable y be “cat”. Write the value returned by Jupyter for this operation: x * 4.

Answer 132

dogdogdogdog

Question 133

Let x = 8 and y = 2. Write the values of the expression: (x + y) * 3

Answer 133

30

Question 134

The command _________ allows to display information of the recently used variables.

Answer 134

%whos

Question 135

Branching statements in Python, are code __________ that execute a block of code depending on a set of _______ criteria.

Answer 135

constructs, conditional

Question 136

The _______ loop can execute a set of statements as long as a condition is true.

Answer 136

while

Question 137

A datatype that holds numeric values?

Answer 137

complex

Question 138

Consider the following code segment:

count = 5

while count > 1:

print(count)

count -= 1

What is the output produced by this code?

Answer 138

5 4 3 2