ISA 221 Final Exam
This string method returns true if a string contains only alphabetic characters and is at least one character in length. a. the isalpha method b. the alpha method c. the alphabetic method d. the isletters method
the isalpha method
This string method returns true if a string contains only numeric digits and is at least one character in length. a. the digit method b. the isdigit method c. the numeric method d. the isnumber method
the isdigit method
You write this statement to respond to exceptions. a. run/ handle b. try/except c. try /handle d. attempt/except
try/except
Which of the following statements creates a tuple? a. values [1, 2, 3, 4] b. values {1, 2, 3, 4} c. values ( 1) d. values ( 1,)
values ( 1,)
This string method returns a copy of the string with all leading whitespace characters removed. a. lstrip b. rstrip c. remove d. strip_leading
lstrip
This built-in function returns the highest value in a list. a. highest b. max c. greatest d. best of
max
Today, CPUs are small chips known as __________.
microprocessors
Assume the following statement appears in a program: mylist = [ ] Which of the following statements would you use to add the string 'Labrador' to the list at index 0? a. mylist[0] = 'Labrador' b. mylist.insert(0, 'Labrador') c. mylist. append ( 'Labrador' ) d. mylist.insert('Labrador', 0)
mylist.insert(0, 'Labrador')
Before a file can be used by a program, it must be a. formatted. b. encrypted. c. closed. d. opened.
opened
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 set of instructions that a computer follows to perform a task.
program
When an exception is generated, it is said to have been _______ a. built b. raised c. caught d. killed
raised
This marks the location of the next item that will be read from a file. a. input position b. delimiter c. pointer d. read position
read position
This file object method returns a list containing the file's contents. a. to_list b. getlist c. readline d. readlines
readlines
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
This string method returns a copy of the string with all leading and trailing whitespace characters removed. a. clean b. strip c. remove_whitespace d. rstrip
strip
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 __________.
the CPU
This removes an item at a specific index in a list. a. the remove method b. the delete method c. the del statement d. the kill method
the del statement
When an input file is opened, its read position is initially set to the first item in the file. T or F
True
When you open a file that file already exists on the disk using the "w" mode, the contents of the existing file will be erased. T or F
True
You can have more than one except clause in a try/except statement. T or F
True
You can use the + operator to concatenate two lists. T or F
True
You can use the for loop to iterate over the individual characters in a string. T or F
True
global
When possible, you should avoid using _________ variables in a program.
call
You _________ the module to execute it.
This list method adds an item to the end of an existing list. a. add b. add to c. increase d. append
append
When a file is opened in this mode, data will be written at the end of the file's existing contents. a. output mode b. append mode c. backup mode d. read-only mode
append mode
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
This is a small "holding section " in memory that many systems write data to before writing the data to a file. a. buffer b. variable c. virtual file d. temporary file
buffer
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
This function returns the length of a string. a. length b. size c. len d. lengthof
len
This will happen if you try to use an index that is out of range for a list. a. A ValueError exception will occur. b. An IndexError exception will occur. c. The list will be erased and the program will continue to run. d. Nothing-the invalid index will be ignored.
An IndexError exception will occur.
This will happen if you try to use an index that is out of range for a string. a. A ValueError exception will occur. b. An IndexError exception will occur. c. The string will be erased and the program will continue to run. d. Nothing-the invalid index will be ignored.
An IndexError exception will occur.
A file object's writelines method automatically writes a newline ( '\n' ) after writing each list item to the file. T or F
False
A flowchart shows the hierarchical relationships between functions in a program.
False
A statement in one function can access a local variable in another function.
False
Assume list1 references a list. After the following statement executes, list1 and list2 will reference two identical but separate lists in memory: list2 = list1 T or F
False
Calling a function and defining a function mean the same thing.
False
Function names should be as short as possible.
False
If you do not handle an exception, it is ignored by the Python interpreter, and the program continues to execute. T or F
False
In Python you cannot write functions that accept multiple arguments.
False
Lists in Python are immutable. T or F
False
The else suite in a try/except statement executes only if a statement in the try suite raises an exception. T or F
False
The finally suite in a try/except statement executes only if no exceptions are raised by statements in the try suite. T or F
False
The isupper method converts a string to all uppercase characters. T or F
False
The phrase "divide and conquer" means that all of the programmers on a team should be divided and work in isolation.
False
The process of opening a file is only necessary with input files. Output files are automatically opened when data is written to them. T or F
False
When a file that already exists is opened in append mode, the file's existing contents are erased. T or F
False
When working with a sequential access file, you can jump directly to any piece of data in the file without reading the data that comes before it. T or F
False
When you call a string's split method, the method divides the string into two substrings. T or F
False
You can remove an element from a tuple by calling the tuple's remove method. T or F
False
You cannot have both keyword arguments and non-keyword arguments in a function call.
False
You do not have to have an import statement in a program to use the functions in the random module.
False
header
The first line of a module definition is known as the _________.
This is the first index in a list. a. - 1 b. 1 c. 0 d. The size of the list minus one
0
This is the first index in a string. a. - 1 b. 1 c. 0 d. The size of the string minus one
0
If you call the index method to locate an item in a list and the item is not found, this happens. a. A ValueError exception is raised. b. An Invalidindex exception is raised. c. The method returns - 1. d. Nothing happens. The program continues running at the next statement.
A ValueError exception is raised.
hierarchy chart
A _________ is a diagram that gives a visual representation of the relationships between modules in a program.
local variable
A _________ is a variable that is declared inside a module.
Top Down Design
A design technique that programmers use to break down an algorithm into modules is know as _________.
code reuse
A design technique that programmers use to reduce the duplication of code within a program and is a benefit of using functions as _________.
function
A group of statements that exist within a program for the purpose of performing a specific task is a(n) _________.
global variable
A variable that is visible to every module in the program is a _________.
argument
A(n) _________ is a piece of data that is sent into a function.
parameter
A(n) _________ is a special variable that receives a piece of data when a module is called.
scope
A(n) _________ is the part of a program in which a variable may be accessed.
When the * operator's left operand is a list and its right operand is an integer, the operator becomes this. a. The multiplication operator b. The repetition operator c. The initialization operator d. Nothing-the operator does not support those types of operands.
The repetition operator
This is the last index in a list. a. 1 b. 99 c. 0 d. The size of the list minus one
The size of the list minus one
This is the last index in a string. a. 1 b. 99 c. 0 d. The size of the string minus one
The size of the string minus one
IPO chart
This is a design tool that describes the input, processing, and output of a function.
sqrt
This is a math module function
library function
This is a prewritten function that is built into a programming language
random
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).
uniform
This standard library function returns a random floating-point number within a specified range of values.
randint
This standard library function returns a random integer within a special range of values.
return
This statement causes a function to end and sends a value back to the part of the program that called the function.
Boolean
This type of function returns either True or False
A function in python can return more than one value.
True
A hierarchy chart does not show the steps that are taken inside a function.
True
A list can be an element in another list. T or F
True
Complex mathematical expressions can sometimes be simplified by breaking out part of the expression and putting it in a function.
True
Functions make it easier for programmers to work in teams.
True
IPO charts provide only brief descriptions of a function's input, processing, and output, but do not show the specific steps taken in a function.
True
In Python, you can specify which parameter an argument should be passed into a function call.
True
Once a string is created, it cannot be changed. T or F
True
Some library functions are built into the Python interpreter
True
The del statement deletes an item at a specified index in a list. T or F
True
The repetition operator ( *) works with strings as well as with lists. T or F
True
Tuples in Python are immutable. T or F
True
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
This term refers to an individual item in a list. a. element b. bin c. cubbyhole d. slot
element
This is a section of code that gracefully responds to exceptions. a. exception generator b. exception manipulator c. exception handler d. exception monitor
exception handler
This is a single piece of data within a record. a. field b. variable c. delimiter d. subrecord
field
This string method returns the lowest index in the string where a specified substring is found. a. first index of b. locate c. find d. index of
find
The physical devices that a computer is made of are referred to as __________.
hardware
This operator determines whether one string is contained inside another string. a. contains b. is in c. == d. in
in
This is a number that identifies an item in a list. a. element b. index c. bookmark d. identifier
index
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
This function returns the length of a list. a. length b. size c. len d. lengthof
len
