19FL-IT280-01 - Object Oriented Programming QUIZ 6

• Question 1

  4 out of 4 points

  	To get a better understanding of how recursion works, it is helpful to trace its calls.
  	Correct Answer:  True

• Question 2

  4 out of 4 points

  	What is the lambda function in Python utilized for?
  	Correct Answer: a.  It allows for the creation of an anonymous function, which contains the names of its arguments and a single expression.

• Question 3

  4 out of 4 points

  	Recursive solutions are often more natural and elegant than their iterative counterparts.
  	Correct Answer:  True

• Question 4

  4 out of 4 points

  	Most recursive functions expect no arguments.
  	Correct Answer:  False

• Question 5

  4 out of 4 points

  	What higher-order function takes a list of values and repeatedly applies a function to accumulate a single data value?
  	Correct Answer: d.  reducing

• Question 6

  4 out of 4 points

  	The assignment of roles and responsibilities to different actors in a program is also called responsibility-driven design.
  	Correct Answer:  True

• Question 7

  4 out of 4 points

  	The first five numbers of the Fibonacci sequence are 1 3 5 8 13.
  	Correct Answer:  False

• Question 8

  4 out of 4 points

  	The amount of memory needed for a loop grows with the size of the problem's data set.
  	Correct Answer:  False

• Question 9

  4 out of 4 points

  	In Python, functions are treated as first-class data objects. What does this mean?
  	Correct Answer: d.  It means that functions can be assigned to variables, passed as arguments to other functions, returned as values, and stored in data structures.

• Question 10

  4 out of 4 points

  	What higher-order function process applies a function to each value in a sequence and returns a new sequence of the results?
  	Correct Answer: b.  mapping

• Question 11

  4 out of 4 points

  	When using functions that have default arguments, the required arguments must be provided and must be placed in the same positions as they are in the function definition's header.
  	Correct Answer:  True

• Question 12

  4 out of 4 points

  	A Python function cannot under normal circumstances reference a module variable for its value.
  	Correct Answer:  False

• Question 13

  4 out of 4 points

  	Where can the required arguments for a function be found?
  	Correct Answer: c.  In the function header.

• Question 14

  4 out of 4 points

  	In what higher-order function do you apply a predicate to each value within a list, and if the predicate returns true, the value is added to an object?
  	Correct Answer: d.  filtering

• Question 15

  4 out of 4 points

  	What happens when a function tries to assign or change a value of a variable that has been defined at the module level?
  	Correct Answer: c.  Python creates a temporary variable with the same name, and the value of that variable exists only within the scope of the function.

• Question 16

  4 out of 4 points

  	What is the call stack used for in the Python virtual machine?
  	Correct Answer: a.  The call stack is an area of reserved memory used to store chunks of memory related to functions.

• Question 17

  4 out of 4 points

  	In a recursive function, what is used to determine whether to stop or to continue with another recursive step?
  	Correct Answer: c.  base case

• Question 18

  4 out of 4 points

  	What makes up a Python program's namespace?
  	Correct Answer: a.  The set of all its variables and their values.

• Question 19

  4 out of 4 points

  	An abstraction hides detail and thus allows a person to view many things as just one thing.
  	Correct Answer:  True

• Question 20

  4 out of 4 points

  	The gradual process of developing functions to solve each subproblem in a top-down design is known as what process?
  	Correct Answer: d.  stepwise refinement

• Question 21

  4 out of 4 points

  	For each call of a function, the Python virtual machine must allocate a small chunk of memory on the call stack, which is known by what term?
  	Correct Answer: d.  stack frame

• Question 22

  4 out of 4 points

  	What term describes a dictionary of functions keyed by command names?
  	Correct Answer: a.  jump table

• Question 23

  4 out of 4 points

  	The use of a common pool of data allows a program to grow easily as new data sources are added to the program.
  	Correct Answer:  True

• Question 24

  4 out of 4 points

  	A program's namespace is the set of its variables and their values.
  	Correct Answer:  True

• Question 25

  4 out of 4 points

  	What is the name for a diagram that shows the relationships among a program's functions and the passage of data between them?
  	Correct Answer: c.  structure chart