Deck 7: Modular Design

Question 1

Modular design allows programs to be broken down into manageable size parts, in which each module (part) is a function with clearly specified functionality.

Answer 1

False

Question 2

A module may be just the design of specific functionality, without any implementation.

Answer 2

True

Question 3

A module, in terms of program design, may consist of a single function.

Answer 3

True

Question 4

Modules are useful for the design, development, testing and maintenance of computer programs.

Question 5

The specification of a module is referred to as the module's interface.

Question 6

A client should always be knowledgeable of the implementation of a module using, and not rely soley on the module's specification (interface).

Question 7

A docstring is a specific feature of Python for providing the specification of program elements (e.g., functions and modules).

Question 8

The __doc__ extension in Python is used in the creation of docstrings.

Question 9

Broadly speaking, a module is

A) a design of specific functionality to be incorporated into a program
B) the implementation of specific functionality to be incorporated into a program
C) a design and/or implementation of specific functionality to be incorporated into a program
D) a function
E) a collection of functions

Question 10

Which of the following do software modules not facilitate?

A) software design
B) software development
C) software execution speed
D) software testing
E) software modification and maintenance

Question 11

The interface of a module is

A) an initial set of Python instructions of the module called once by any client
B) specification of the module providing information to any client
C) a common set of Python instructions in both the module and any of lts clients
D) a common specification in both the module and any client of its clients
E) a common set of values shared by both a module and its clients

Question 12

A docstring is,

A) any Python string used to provide the specification of a program element (e.g., module)
B) any Python string delimited by double quotes providing the specification of a program element.
C) any Python string delimited by triple quotes providing the specification of a program element.
D) any Python string delimited by triple quotes given as the first line of a program element.
E) any triple quoted string in Python

Question 13

The __doc__ extension in Python is used to

A) display the docstring of a program element
B) display all the docstrings in a given program
C) reassign the docstring of a program element
D) toggle the docstring of a program element on and off
E) returns True or False for determing if a given program element has a provided docstring

Question 14

Match the following:

-imports a module

A) module
B) interface
C) client
D) docstring
E) __doc__

Question 15

Match the following:

-displays specification

A) module
B) interface
C) client
D) docstring
E) __doc__

Question 16

Match the following:

-Python string

A) module
B) interface
C) client
D) docstring
E) __doc__

Question 17

Match the following:

-design or implementation

A) module
B) interface
C) client
D) docstring
E) __doc__

Question 18

Match the following:

-specification

A) module
B) interface
C) client
D) docstring
E) __doc__

Question 19

A ___________________ consists of the design and/or implementation of specific functionality.

Question 20

The term ____________________ refers to the specification provided for use of a given module. In Python, a _________________ is used to provided such specification.

Question 21

Any program code that makes use of a given module is called a ____________ of the module.

Question 22

For the following function,
def elapsed_time(start_hr, start_mins, end_hr, end_mins)
-Give an appropriate docstring specification, where function elapsed_time returns the total number of minutes between the provided start and end times.

Question 23

For the following function,
def elapsed_time(start_hr, start_mins, end_hr, end_mins)
-GIve a print statement that displays the docstring for this function.

Question 24

In top-down design, the overall design of a program is developed before the more detailed aspects of the design.

Question 25

In top-down design, evey module is broken down the same number of levels of submodules.

Question 26

Top-down design is an approach for developing a _______________ design.

Question 27

The three top-level modules for the calendar year program in Chapter 7 of the textbook are
______________, ______________________, and ______________________.

Question 28

Develop a modular design of the typical aspects of a house. Include things such rooms, systems (for example, the plumbing, electrical, and heating systems), and other aspects.

Question 29

A module in Python is a file containing definitions and statements, which must contain a module declaration statement as the first line.

Question 30

Modules in Python have their own namespace.

Question 31

A name clash results when the same identifier is used in more than one function of a given program.

Question 32

A fully qualified identifier is an identifier with the name of the module that it belongs to prepended to it.

Question 33

The main module of a Python program is the one that is directly executed when a program is run.

Question 34

When using the import modulename form of import, the identifiers of the imported module become part of the namespace of the importing module.

Question 35

When a module is imported using the from modulename import identifier form of import, each imported identifier can be references without needing to be fully qualified.

Question 36

To avoid name clashes, and to make clear which module each imported identifier comes from, it is recommended that the import modulename form of import be used.

Question 37

Privates identifiers (variables) of a given module cannot be accessed by any importing module.

Question 38

When importing a module using the from modulename import * form of import, the private identifiers of the imported module are not imported, but can still be accessed by the importing module.

Question 39

Modules may have Python code outside of all function definitions that is executed when the module is first loaded.

Question 40

Built-in function dir() is used to create special directories (folders) for Python modules to be placed.

Question 41

Which of the following is not true of main modules?

A) main modules are directly executed.
B) main modules are given the name __main__.
C) main modules are meant to be imported into other modules.
D) main modules may import, or include, any number of other modules.
E) main modules provide the basis for a complete Python program.

Question 42

The following line of code will
From math import factorial as simpFact

A) make every function from the math module available in a client program, but the function factorial will be renamed to simpFact.
B) import only the factorial function from the math module into client, which must be fully qualified when called.
C) import only the factorial function from the math module and integrate it into the namespace of the client as simpFact instead of factorial.
D) this is not proper Python code.

Question 43

Assuming that the following function exists within a module to be imported into a client, how should the client treat this function?

A) the client can use this function at will as long as it imported.
B) this function is "private," even if a client imports its module, the function cannot be accessed.
C) this function is "private," the client can access it but should not.
D) the client should print this functions docstring before using it

Question 44

Which of these is not a type of namespace in Python?

A) foreign Namesapce
B) built-In Namespace
C) global Namespace
D) local Namespace
E) these are all valid namespaces

Question 45

The main module in Python is given the special name ______________.

Question 46

The modules of the Python Standard Library are referred to as the Standard ____________ modules.

Question 47

A _______________ is a container that provides a named context for a set of identifiers.

Question 48

A _________________ is when two otherwise distinct entities with the same name become part of the same namespace.

Question 49

If an identifier is written such that it _________________________, then it is unique from all other identifiers in a given program.

Question 50

If an identifier is written such that it is _________________________, then it is unique from all other identifiers in a given program.

Question 51

To import a module name into the namespace of another module, the ____________________ form of import is used.

Question 52

To import all of the identifiers of a given module so that they do not need to be fully qualified in the importin module, the _______________________ form of import is used.

Question 53

In order to indicate that an identifier of a given module is to be considered private, the identifier begins and ends with ______________________.

Question 54

In Python, there are as many as three namespaces that can be active at a given time, these are the
_______________ namepace, the ______________ namepace, and the ______________ namespace.

Question 55

The fundamental operations for altering what is on a stack are ________ and _______.

Question 56

The operation for seeing what is on the top of stack without removing it is _________.

Question 57

For the following module,
# module driving_conversions
def milesPerHr(km_speed):
'''Returns miles per hour for kilometers per hour given in speed. '''
def milesPerGal(KilometersPerLiter):
'''Returns miles per gallon for provided kilometers per liter. '''

-Provide a main module that makes use of this module to prompt the user for the conversion desired, and displays the converted result, using the import modulename form of import.

Question 58

For the following module,
# module driving_conversions
def milesPerHr(km_speed):
'''Returns miles per hour for kilometers per hour given in speed. '''
def milesPerGal(KilometersPerLiter):
'''Returns miles per gallon for provided kilometers per liter. '''

-Modify (a) above using the from modulename import identifier, identifier form of import.

Question 59

For the following module,
# module driving_conversions
def milesPerHr(km_speed):
'''Returns miles per hour for kilometers per hour given in speed. '''
def milesPerGal(KilometersPerLiter):
'''Returns miles per gallon for provided kilometers per liter. '''

-Modify (a) above using the from modulename import * form of import.

Question 60

For the following module,
# module driving_conversions
def milesPerHr(km_speed):
'''Returns miles per hour for kilometers per hour given in speed. '''
def milesPerGal(KilometersPerLiter):
'''Returns miles per gallon for provided kilometers per liter. '''

-Modify (a) above using the from modulename import identifier as new_identifier form of import.

Question 61

For the following module,
# module driving_conversions
def milesPerHr(km_speed):
'''Returns miles per hour for kilometers per hour given in speed. '''
def milesPerGal(KilometersPerLiter):
'''Returns miles per gallon for provided kilometers per liter. '''
-Describe the namespaces for the main modules of (a), (b), (c) and (d) above.

Question 62

For the stack module given in the chapter, containing functions getStack(), isEmpty(s), top(s), push(s, item) and pop(s), give a main module that prompts the user for a list of numbers (one per line), and displays how many items there are of the last number input.