Python Final Exam
This is a design tool that describes the input, processing, and output of a function. a. hierarchy chart b. IPO chart c. datagram chart d. data processing chart
IPO chart
If you were to look at a machine language program, you would see __________. a.Java code b.a stream of binary numbers c.English words d.circuits
a stream of binary numbers
A(n) __________ variable keeps a running total. a. sentinel b. sum c. total d. accumulator
accumulator
A(n) __________ is a set of well-defined logical steps that must be taken to perform a task. a. logarithm b. plan of action c. logic schedule d. algorithm
algorithm
A component that collects data from people or other devices and sends it to the computer is called __________. a.an output device b.an input device c.a secondary storage device d.main memory
an input device
A magic number is ________________. a. a number that is mathematically undefined b. an unexplained value that appears in a program's code c. a number that cannot be divided by 1 d. a number that causes computers to crash
an unexplained value that appears in a program's code
A compound Boolean expression created with the __________ operator is true only if both of its subexpressions are true. a. and b. or c. not d. both
and
A(n) __________ is a piece of data that is sent into a function. a. argument b. parameter c. header d. packet
argument
The __________ translates an assembly language program to a machine language program. a.assembler b.compiler c.translator d.interpreter
assembler
A(n) __________ makes a variable reference a value in the computer's memory. a. variable declaration b. assignment statement c. math expression d. string literal
assignment statement
The -= operator is an example of a(n) __________ operator. a. relational b. augmented assignment c. complex assignment d. reverse assignment
augmented assignment
When a program is finished using a file, it should do this. a. erase the file b. open the file c. close the file d. encrypt the file
close the file
When working with this type of file, you can jump directly to any piece of data in the file without reading the data that comes before it. a. ordered access b. binary access c. direct access d. sequential access
direct access
A design technique that helps to reduce the duplication of code within a program and is a benefit of using functions is __________. a. code reuse b. divide and conquer c. debugging d. facilitation of teamwork
divide and conquer
A(n) _________ structure tests a condition and then takes one path if the condition is true, or another path if the condition is false. a. if statement b. single alternative decision c. dual alternative decision d. sequence
dual alternative decision
18. This statement causes a function to end and sends a value back to the part of the program that called the function. a. end b. send c. exit d. return
return
This is a math module function. a. derivative b. factor c. sqrt d. differentiate
sqrt
A __________ is a sequence of characters. a. char sequence b. character collection c. string d. text block
string
The rules that must be followed when writing a program are called __________. a.syntax b.punctuation c.key words d.operators
syntax
The contents of this type of file can be viewed in an editor such as Notepad. a. text file b. binary file c. English file d. human-readable file
text file
The part of a computer that runs programs is called __________. a.RAM b.secondary storage c.main memory d.the CPU
the CPU
A design technique that programmers use to break down an algorithm into functions is known as __________. a. top-down design b. code simplification c. code refactoring d. hierarchical subtasking
top-down design
Negative numbers are encoded using the __________ technique. a.two's complement b.floating-point c.ASCII d.Unicode
two's complement
A __________ is any hypothetical person using a program and providing input for it. a. designer b. user c. guinea pig d. test subject
user
A __________ is a name that references a value in the computer's memory. a. variable b. register c. RAM slot d. byte
variable
A type of memory that can hold data for long periods of time—even when there is no power to the computer-is called __________. a.RAM b.main memory c.secondary storage d.CPU storage
secondary storage
A(n) __________ is a special value that signals when there are no more items from a list of items to be processed. This value cannot be mistaken as an item from the list. a. sentinel b. flag c. signal d. accumulator
sentinel
When working with this type of file, you access its data from the beginning of the file to the end of the file. a. ordered access b. binary access c. direct access d. sequential access
sequential access
A __________ structure provides one alternative path of execution. a. sequence b. single alternative decision c. one path alternative d. single execution decision
single alternative decision
A __________ is a single function that the program must perform in order to satisfy the customer. a. task b. software requirement c. prerequisite d. predicate
software requirement
This standard library function returns a random floating-point number within a specified range of values. a. random b. randint c. random_integer d. uniform
uniform
A(n) __________ expression has a value of either True or False. a. binary b. decision c. unconditional d. Boolean
Boolean
This type of function returns either True or False. a. Binary b. true_false c. Boolean d. logical
Boolean
This is a volatile type of memory that is used only for temporary storage while a program is running. a.RAM b.secondary storage c.the disk drive d.the USB drive
RAM
An extensive encoding scheme that can represent the characters of many of the languages in the world is __________. a.binary numbering b.ASCII c.Unicode d.ENIAC
Unicode
This operator performs integer division. a. // b. % c. ** d. /
//
A bit that is turned off represents the following value: __________. a.1 b.-1 c.0 d."no"
0
Which of the following statements will cause an error? a. x = 17 b. 17 = x c. x = 99999 d. x = '17'
17 = X
In a(n) __________ numbering system, all numeric values are written as sequences of 0s and 1s. a.hexadecimal b.binary c.octal d.decimal
binary
This type of file contains data that has not been converted to text. a. text file b. binary file c. Unicode file d. symbolic file
binary file
A byte is made up of eight __________. a.CPUs b.instructions c.variables d.bits
bits
A __________ is enough memory to store a letter of the alphabet or a small number. a.byte b.bit c.switch d.transistor
byte
You __________ a function to execute it. a. define b. call c. import d. export
call
Short notes placed in different parts of a program explaining how those parts of the program work are called __________. a. comments b. reference manuals c. tutorials d. external documentation
comments
A(n) __________ program translates a high-level language program into a separate machine language program. a.assembler b.compiler c.translator d.utility
compiler
A __________ -controlled loop uses a true/false condition to control the number of times that it repeats. a. Boolean b. condition c. decision d. count
condition
A __________ -controlled loop repeats a specific number of times. a. Boolean b. condition c. decision d. count
count
A __________ structure can execute a set of statements only under certain circumstances. a. sequence b. circumstantial c. decision d. Boolean
decision
In the __________ part of the fetch-decode-execute cycle, the CPU determines which operation it should perform. a.fetch b.decode c.execute d.immediately after the instruction is executed
decode
A file that data is read from is known as a(n) . a. input file b. output file c. sequential access file d. binary file
input file
Which built-in function can be used to read input that has been typed on the keyboard? a. input() b. get_input() c. read_input() d. keyboard()
input()
Each repetition of a loop is known as a(n) __________. a. cycle b. revolution c. orbit d. iteration
iteration
This is a prewritten function that is built into a programming language. a. standard function b. library function c. custom function d. cafeteria function
library function
A __________ is a variable that is created inside a function. a. global variable b. local variable c. hidden variable d. none of the above; you cannot create a variable inside a function
local variable
A __________ error does not prevent the program from running, but causes it to produce incorrect results. a. syntax b. hardware c. logic d. fatal
logic
and, or, and not are __________ operators. a. relational b. logical c. conditional d. ternary
logical
Computers can only execute programs that are written in __________. a.Java b.assembly language c.machine language d.C++
machine language
The computer stores a program while the program is running, as well as the data that the program is working with, in __________. a.secondary storage b.the CPU c.main memory d.the microprocessor
main memory
Today, CPUs are small chips known as __________. a.ENIACs b.microprocessors c.memory chips d.operating systems
microprocessors
The words that make up a high-level programming language are called __________. a.binary instructions b.mnemonics c.commands d.key words
mnemonics
A __________ is a name that represents a value that does not change during the program's execution. a. named literal b. named constant c. variable signature d. key term
named constant
11. The ___________ operator takes a Boolean expression as its operand and reverses its logical value. a. and b. or c. not d. either
not
Before a file can be used by a program, it must be . a. formatted b. encrypted c. closed d. opened
opened
In the expression 12 + 7, the values on the right and left of the + symbol are called __________. a. operands b. operators c. arguments d. math expressions
operands
A compound Boolean expression created with the _________ operator is true if either of its subexpressions is true. a. and b. or c. not d. either
or
A video display is a(n) __________. a.output device b.input device c.secondary storage device d.main memory
output device
A file that data is written to is known as a(n) __. a. input file b. output file c. sequential access file d. binary file
output file
A(n) __________ is a special variable that receives a piece of data when a function is called. a. argument b. parameter c. header d. packet
parameter
The _____________ keyword is ignored by the Python interpreter and can be used as a placeholder for code that will be written later. a. placeholder b. pass c. pause d. skip
pass
The tiny dots of color that digital images are composed of are called __________. a.bits b.bytes c.color packets d.pixels
pixels
The while loop is a __________ type of loop. a. pretest b. no-test c. prequalified d. post-iterative
pretest
The input operation that appears just before a validation loop is known as the _________________. a. prevalidation read b. primordial read c. initialization read d. priming read
priming read
A(n) __________ is a set of instructions that a computer follows to perform a task. a.compiler b.program c.interpreter d.programming language
program
An informal language that has no syntax rules and is not meant to be compiled or executed is called __________. a. faux code b. pseudocode c. Python d. a flowchart
pseudocode
This standard library function returns a random integer within a specified range of values. a. random b. randint c. random_integer d. uniform
randint
This standard library function returns a random floating-point number in the range of 0.0 up to 1.0 (but not including 1.0). a. random b. randint c. random_integer d. uniform
random
The symbols >, <, and == are all __________ operators. a. relational b. logical c. conditional d. ternary
relational
A(n) __________ is the part of a program in which a variable may be accessed. a. declaration space b. area of visibility c. scope d. mode
scope
This symbol marks the beginning of a comment in Python. a. & b. * c. ** d. #
#
This operator performs division, but instead of returning the quotient it returns the remainder. a. % b. * c. ** d. /
%
a. % b. * c. ** d. /
**
A set of 128 numeric codes that represent the English letters, various punctuation marks, and other characters is __________. a.binary numbering b.ASCII c.Unicode d.ENIAC
ASCII
A string literal in Python must be enclosed in __________. a. parentheses. b. single-quotes. c. double-quotes. d. either single-quotes or double-quotes.
either single-quotes or double-quotes
Validation loops are also known as . a. error traps b. doomsday loops c. error avoidance loops d. defensive loops
error traps
A ___________ is a Boolean variable that signals when some condition exists in the program. a. flag b. signal c. sentinel d. siren
flag
Suppose the following statement is in a program: price = 99.0. After this statement executes, the price variable will reference a value of which data type? a. int b. float c. currency d. str
float
Which built-in function can be used to convert an int value to a float? a. int_to_float() b. float() c. convert() d. int()
float()
Real numbers are encoded using the __________ technique. a.two's complement b.floating-point c.ASCII d.Unicode
floating-point
A __________ is a diagram that graphically depicts the steps that take place in a program. a. flowchart b. step chart c. code graph d. program graph
flowchart
A group of statements that exist within a program for the purpose of performing a specific task is a(n) __________. a. block b. parameter c. function d. expression
function
GIGO stands for . a. great input, great output b. garbage in, garbage out c. GIGahertz Output d. GIGabyte Operation
garbage in, garbage out
When possible, you should avoid using __________ variables in a program. a. local b. global c. reference d. parameter
global
A variable that is visible to every function in a program file is a __________. a. local variable b. universal variable c. program-wide variable d. global variable
global variable
The physical devices that a computer is made of are referred to as __________. a.hardware b.software c.the operating system d.tools
hardware
The first line of a function definition is known as the __________. a. body b. introduction c. initialization d. header
header
A __________ is a diagram that gives a visual representation of the relationships between functions in a program. a. flowchart b. function relationship chart c. symbol chart d. hierarchy chart
hierarchy chart
You use a(n) __________ statement to write a single alternative decision structure. a. test-jump b. if c. if-else d. if-call
if
You use a(n) __________ statement to write a dual alternative decision structure. a. test-jump b. if c. if-else d. if-call
if-else
A(n) __________ loop has no way of ending and repeats until the program is interrupted. a. indeterminate b. interminable c. infinite d. timeless
infinite
The integrity of a program's output is only as good as the integrity of the program's ____________. a. compiler b. programming language c. input d. debugger
input