Python Midterm

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In Python the __________ symbol is used as the not-equal-to operator.

!=

The remainder of an integer division is accomplished using the ____________ operator.

%

Which mathematical operator is used to raise 5 to the second power in Python?

**

Given str1 = Life, the universe and everything. what does str1.find( rev ) return?

-1

Integer division is accomplished using the ____________ operator.

//

What are the valid indexes for the string 'New York'?

0 through 7

What are the values that the variable num contains through the iterations of the following for loop? for num in range(4):

0, 1, 2, 3

Given str1 = Life, the universe and everything. what does str1.find( ve ) return?

13

In the string literal Life, the universe and everything. the substring verse begins at position _____ and ends at position_____.

13, 17

What is the decimal value of the following binary number? 10011101

157

What are the values that the variable num contains through the iterations of the following for loop? for num in range(2, 9, 2):

2, 4, 6, 8

Given str1 = Life, the universe and everything. what does str1.rfind( ve ) return?

24

What is the output of the following command, given that value1 = 2.0 and value2 = 12? print(value1 * value2)

24.0

What is the largest value that can be stored in one byte?

255

After the execution of the following statement, the variable price will reference the value __________. price = int(68.549)

68

A function header must end with a(n) _________.

:

Which of the following is not an augmented assignment operator?

<=

In Python the __________ symbol is used as the equal operator.

==

The __________ coding scheme contains a set of 128 numeric codes that are used to represent characters in the computer's memory.

ASCII

Why do programmers use top-down design and structured programming?

All of the above

What type of function can be used to determine whether a number is even or odd?

Boolean

Which of the following is the correct if clause to determine whether choice is anything other than 10?

Correct if choice != 10:

The following expression is valid: string[i] = 'i'

False

True or False: The third argument of the range function specifies the upper bound of the count.

False

What is the result of the following Boolean expression, given that x = 5, y = 3, and z = 8? x < y and z > x

False

What is the result of the following Boolean expression, given that x = 5, y = 3, and z= 8? not (x < y or z > x) and y < z

False

What is the output of the following print statement? print 'I\'m ready to begin'

I'm ready to begin

__________ is the process of inspecting data that has been input into a program in order to ensure that the data is valid before it is used in a computation.

Input validation

Python has an object called _________ that is used to denote a lack of value.

None

What type of volatile memory is usually used only for temporary storage while running a program?

RAM

What happens when a justification method is used to display string output but the string is longer than the allocated width?

The justification method is ignored

What is the output of the following print statement? print('The path is D:\\sample\\test.')

The path is D:\sample\test.

In slicing, if the end index specifies a position beyond the end of the string, Python will use the length of the string instead.

True

The index -1 identifies the last character of a string

True

The index -1 identifies the last character of a string.

True

True or False: When two arguments are supplied to range, the count ranges from the first argument to the second argument minus 1.

True

What is the result of the following Boolean expression, given that x = 5, y = 3, and z = 8? x < y or z > x

True

Python was originally implemented on ________________.

UNIX.

The line continuation character is a

\

Given the Python statement number = int(input( Enter a whole number: )) what will be the output if the user enters 17.9?

a Traceback error message

What symbol is used to mark the beginning and end of a string?

a quote mark (")

A variable used to keep a running total is called a(n)

accumulator

The arguments in a function call are called _________ parameters.

actual

A comma in the print statement notifies Python to:

add a space after a string rather than begin a new line.

A good reason to include documentation in your program is ____________.

all of the above

The sorted function can be used with _________.

all of the above

A compound Boolean expression created with the ___________ operator is TRUE only if both of its subexpressions are TRUE.

and

In the split method, if no separator is specified, the default is ____________.

any whitespace character

In a function call, the items inside parentheses are called _________.

arguments

A statement of the form variableName = numericExpression is called a(n) ____________.

assignment statement

The smallest storage location in a computer's memory is known as a

bit

A set of statements that belong together as a group and contribute to the function definition is known as a

block

In Python, ____________________ literals can be written in several ways, but most programmers prefer the use of the standard values True and False.

boolean

In Python, variable names may begin with ____________.

both a & b

The ____________ statement causes an exit from anywhere in the body of a loop.

break

An error is a program is called a(n) _______________.

bug

Writing Python statements is called _______________.

coding

Multiple Boolean expressions can be combined by using a logical operator to create __________ expressions.

compound

Combining two strings to form a new string is called ____________.

concatenation

What type of loop structure repeats the code based on the value of Boolean expression?

condition-controlled loop

Which of the following requires that a condition be tested within the loop to determine whether the loop should continue?

conditional iteration

The ____________ statement causes the current iteration of the body of a loop to terminate and execution returns to the loop s header.

continue

A(n) __________ structure is a logical design that controls the order in which a set of statements execute.

control

What type of loop structure repeats the code a specific number of times?

count-controlled loop

Functions that do not return values _________.

do not have return statements

The decision structure that has two possible paths of execution is known as

dual alternative

In Python, string literals are surrounded by

either a or b

When an if-else statement needs to allow for more than two possible alternatives, you use a(n) ____________ clause.

elif

Which method would you use to determine whether a certain substring is the suffix of a string?

endswith(substring)

When a function is called by its name during the execution of a program, then it is

executed

The process known as the __________ cycle is used by the CPU to execute instructions in a program.

fetch-decode-execute

The total number of data characters and additional spaces for a given datum in a formatted string is called which of the following?

field width

Which method would you use to determine whether a certain substring is present in a string?

find(substring)

A ____________ is a Boolean-valued variable used to report whether a certain circumstance has occurred.

flag

After the execution of the following statement, the variable sold will reference the numeric literal value as (n) __________ data type. sold = 256.752

float

A variable that can be recognized everywhere in the program is called a _________ variable.

global

If the start index is __________ the end index, the slicing expression will return an empty string.

greater than

The mechanical and electrical devices of a computer are referred to as _______________.

hardware

Which of the following is the correct if clause to determine whether y is in the range 10 through 50, inclusive?

if y >= 10 and y <= 50:

The __________ operator can be used to determine whether one string is contained in another string.

in

Each character in a string has a(n) __________ which specifies its position in the string.

index

A(n) ___________ loop usually occurs when the programmer does not include code inside the loop that makes the test condition false.

infinite

The __________ built-in function is used to read a number that has been typed on the keyboard.

input()

_________ are file that facilitate the reuse of functions.

library modules

In Python, a comma-separated sequence of data items that are enclosed in a set of brackets is called

list

Function parameters have _________ scope.

local

and, or, and not are _________________ operators.

logical

The following is an example of an instruction written in which computer language? 1011 00010

machine language

When one loop is contained in the body of another loop, it is said to be ____________.

nested

Which logical operators perform short-circuit evaluation?

or, and

Which of the following is in the correct order of operator precedence (highest to lowest)?

parentheses, multiplication, addition.

The ____________ statement is a do-nothing statement.

pass

In a function definition, the parameters without default values must _________ the parameters with default values.

precede

The first operation is called the __________ and its purpose is to get the first input value that will be tested by the validation loop.

priming read

A sequence of instructions is called a(n) _______________ .

program

The function call produces the same sequence as range( 10 ).

range( 0, 10, 1 ).

A(n) __________ structure is a structure that causes a statement or a set of statements to execute repeatedly.

repetition

A function is said to _________ its output.

return

Modules are __________________.

reusable pieces of software

The benefit of object-oriented programming is that it is

reusable. easy to understand. easy to update.

The _________ of a variable is the portion of the program that can refer to it.

scope

When Python stops evaluating a compound condition with the logical and operator because a condition evaluates to False, it is called ____________evaluation.

short-circuit

A sequence of consecutive characters from a string is called a(n) ____________.

slice

Computer programs are referred to as _______________ .

software

Programs are commonly referred to as

software

Instructions in a Python program are called _______________.

source code

An operator is a

special symbol that performs a specific operation.

Comments are useful for

specifying the intent of the program

Which method turns a single string into a list of substrings?

split

The interval between the numbers used in the range is known as which of the following?

step value

Which type of error prevents the program from running?

syntax

In Python, the variable in the for clause is referred to as the __________ because it is the target of an assignment at the beginning of each loop iteration.

target variable

When referencing a substring such as str1[m:n] if m ? n then the value will be ____________.

the empty string

What is the return value of the string method lstrip()?

the string with all leading whitespaces removed

Which of the following represents an example to calculate the sum of numbers (that is, an accumulator), given that the number is stored in the variable number and the total is stored in the variable total?

total += number

The encoding technique used to store negative numbers in the computer's memory is called _____.

two's complement

An object s identifies the kind of information contained in the object.

type

The variable data refers to the string No way! . The expression data[3:6] evaluates to:

way

When will the following loop terminate? while keep_on_going != 999:

when keep_on_going refers to a value equal to 999

What Python loop repeatedly executes a block of statements as long as a certain condition is met?

while

What does the following expression mean? x <= y

x is less than or equal to y

Python programs can enclose strings in quotes.

All of the above.

What advantage is there to using functions in programming?

All of the above.

Which computer language uses short words known as mnemonics for writing programs?

Assembly

Which language is referred to as a low-level language?

Assembly language

Python is used with the ____________________ (CGI) for programming Web-based applications.

Common Gateway Interface

A combination of numbers, arithmetic operators, and parentheses that can be evaluated is called a numeric ____________.

expression

A(n) __________ is a diagram that graphically depicts the steps that take place in a program?

flowchart

Which programming tool graphically depicts the logical steps to carry out a task and show how the steps relate to each other?

flowchart

The parameters in a function definition are also called _________ parameters.

formal

When Python removes an orphaned object from memory, it is called ____________.

garbage collection

The first line in a function definition is known as the function

header

To gain access to the functions and variables of a library module, use a(n) _________ statement.

import

Where does a computer store a program and the data that the program is working with while the program is running?

in main memory

Using a while loop to ensure a proper response is received from a request is called ____________.

input validation

The Python library functions that are built into the Python __________ can be used by simply calling the required function.

interpreter

The following statement is an example of _________. [int(num) for num in listOfNums]

list comprehension

In programming terminology, numbers are called numeric ____________.

literals

A variable created inside a function is called a _________ variable.

local

Which standard library module contains trigonometric, exponential, and logarithmic functions?

math

When an if-else statement contains other if-else statements, it is said to be ____________.

nested

What is the informal language, used by programmers use to create models of programs, that has no syntax rules and is not meant to be compiled or executed?

pseudocode

Which programming tool uses English-like phrases with some Python terms to outline the task?

pseudocode

When an if-elif-else statement is evaluated, which block of statements is evaluated?

the first condition satisfied

If two variables with the same name are created in two different functions _________.

they have no relationship to each other.


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