Programming 4-5
What is the result of the following statement? x = random.randint (5,15)*2
A random integer from 5 to 15, multiplied by 2, assigned to the variable x
What type of function can be used to determine whether a number is even or odd?
Boolean
What type of loop structure repeats the code based on the value of the Boolean expression?
Boolean-controlled loop
When a function is called by its name, then it is ________.
Executed
In Python, an infinite loop usually occurs when the computer accesses the wrong memory address
False
In a menu-driven program, a loop structure is used to determine the menu item the user selected
False
One of the drawbacks of a modularized program is that the only structure we could use is sequence structure
False
True/False: A function definition specifies what a function does and causes the function to execute
False
True/False: A local variable can be accessed from anywhere in the program.
False
True/False: Functions can be called from statements in the body of a loop, and loops can be called from the body of a function.
False
True/False: In Python, there is no restriction on the name of a module file.
False
True/False: In a menu-driven program, a loop structure is used to determine the menu item theuser selected.
False
True/False: One of the drawbacks of a modularized program is that the only structure we could use is sequence structure
False
True/False: One of the drawbacks of a modularized program is that the only structure we could use is sequence structure.
False
True/False: The first line in the while loop is referred to as the condition clause.
False
True/False: The hierarchy chart shows all the steps that are taken inside a function
False
True/False: The math function, atan(x), returns one tangent of x in radians
False
True/False: The value assigned to a global constant can be changed in the mainline logic
False
True/False: Unlike other languages, in Python, the number of values a function can return is limited to one.
False
A( n ) ________ chart is also known as a structured chart.
Hierarchy
What is the disadvantage of coding in one long sequence structure?
If parts of the duplicated code have to be corrected, the correction has to be made many times
Which of the following statements causes the interpreter to load the contents of the random module into memory?
Import Random
________ is the process of inspecting data that has been input to a program to make sure it is valid before it is used in a computation.
Input validation
The Python library functions that are built into the Python _____ can be used by simply calling the function.
Interpreter
What makes it easier to reuse the same code in more than one program?
Modules
What is the structure that causes a statement or a set of statements to execute repeatedly
Repetition
A variable's ________ is the part of a program in which the variable may be accessed.
Scope
The _____ of a local variable is the function in which the variable is created.
Scope
Python comes with ________ functions that have been already prewritten for the programmer.
Standard
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
What does the following statement mean?num1, num2 = get_num()
The function get_num() is expected to return a value each for num1 and num2.
To get the total number of iterations of a nested loop, multiply the number ofiterations of all the loops.
True
True/False: A better way to repeatedly perform an operation is to write the statements for the task once, and then place the statements in a loop that will repeat the statements as many times as necessary.
True
True/False: A value-returning function is like a simple function except that when it finishes it returns a value back to the called part of the program
True
True/False: A value-returning function is like a simple function except that when it finishes it returns a value back to the called part of the program.
True
True/False: Boolean functions are useful for simplifying complex conditions that are tested in decision and repetition structures
True
True/False: Boolean functions are useful for simplifying complex conditions that are tested in decision and repetition structures.
True
True/False: Both of the following for clauses would generate the same number of loop iterations. for num in range(4): for num in range(1,5):
True
True/False: Different functions can have local variables with the same names.
True
True/False: In Python, one can have a list of variables on the left side of the assignment operator
True
True/False: In Python, one can have a list of variables on the left side of the assignment operator.
True
True/False: In a nested loop, the inner loop goes through all of its iterations for every single iteration of an outer loop.
True
True/False: In flowcharting, the decision structure and the repetition structure both use the diamond symbol to represent the condition that is tested.
True
True/False: One of the reasons not to use global variables is that it makes a program hard to debug.
True
True/False: Python allows for passing multiple arguments to a function
True
True/False: Python allows for passing multiple arguments to a function.
True
True/False: Python function names follow the same rules for naming variables
True
True/False: Python function names follow the same rules for naming variables.
True
True/False: Reducing duplication of code is one of the advantages of using a loop structure.
True
True/False: The function header marks the beginning of the function definition
True
True/False: The function header marks the beginning of the function definition.
True
True/False: The integrity of a program's output is only as good as the integrity of its input. For this reason the program should discard input that is invalid and prompt the user to enter correct data.
True
True/False: The math function, ceil(x), returns the smallest integer that is greater than or equal to x.
True
True/False: The randrange function returns a randomly selected value from a specific sequence of numbers.
True
True/False: To assign a value to a global variable in a function, the global variable must first be declared in the function
True
True/False: To assign a value to a global variable in a function, the global variable must first be declared in the function.
True
True/False: To get the total number of iterations of a nested loop, multiply the number of iterations of all the loops.
True
When will the following loop terminate? while keep_on_going != 999 :
When keep_on_going refers to a value equal to 999
A value-returning function is ________.
a function that will return a value back to the part of the program that called it
The variable used to keep the running total is called a(n)
accumlator
A(n) _____ is any piece of data that is passed into a function when the function is called.
arguments
A set of statements that belong together as a group and contribute to the function definition is known as a( n ) ________.
block
What type of loop structure repeats the code a specific number of times?
count-controlled loop
What type of value is returned by the functions random and uniform
float
Which of the following functions returns the largest integer that is less than or equal to x?
floor
What is a group of statements that exists within a program for the purpose of performing a specific task
function
A(n) _____ constant is a global name that references a value that cannot be changed
global
A(n) _____ variable is accessible to all the functions in a program file
global
It is recommended that programmers should avoid using _____ variables in a program when possible.
global
The first line in the function definition is known as the function
header
In a menu-driven program, what statement is used to determine and carry out the user's desired action?
if-elif-else
The _____ argument specifies which parameter the argument should be passed into
keyword
n Python, a comma-separated sequence of data items that are enclosed in a set of brackets is called a ________.
list
A(n) _____ variable is created inside a function
local
The Python standard library's _____ module contains numerous functions that can be used in mathematical calculations.
math
Which of the following will assign a random number in the range of 1 through 50 to the variable number?
number = random.randint(1, 50)
A(n) _____ is a variable that receives an argument that is passed into a function.
parameter
A(n) ________ is a variable that receives an argument that is passed into a function.
parameter
The first input operation is called the ________, and its purpose is to get the first input value that will be tested by the validation loop
priming read
In a value-returning function, the value of the expression that follows the key word _____ will be sent back to the part of the program that called the function
return
The _____ design technique can be used to break down an algorithm into functions.
top-down
Which of the following represents an example to calculate the sum of the numbers (accumulator)?
total += number
What is the format for the while clause in Python?
while condition :
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
What are the values that the variable num contains through the iterations of the following for loop? for num in (2 , 9 , 2)
2,4,6,8
Given the following function definition, what would the statement print magic(5) display? def magic(num): return num + 2 * 10
25
What is not an example of an augmented assignment operator?
<=