Question 1

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?

Accepted Answer

A)   mapping
B)   filtering
C)   reducing
D)   associatingE) A) and D)
F) None of the above

Question 2

How does top-down design work?

Accepted Answer

A)   A problem is solved by employing a large task force to evaluate the cause.
B)   A problem is solved by redesigning and repurposing existing software.
C)   A solution is created to solve a problem, and individual issues are resolved as they are encountered.
D)   A problem is decomposed into smaller problems, which are gradually solved to produce a solution.E) B) and C)
F) None of the above

Question 3

In Python, what is the term that is used to describe the area of a program text in which an object name refers to a given value?

Accepted Answer

A)   relation
B)   relevance
C)   lifetime
D)   scopeE) All of the above
F) A) and D)

Question 4

It is possible to construct any algorithm using only Python's built-in operators and control statements.

Accepted Answer

A) True 
 B)False

Question 5

What happens when a function tries to assign or change a value of a variable that has been defined at the module level?

Accepted Answer

A)   The function succeeds, because the module variable is considered global in scope.
B)   The function succeeds, but the value is appended to the variable.
C)   The function fails, and an out of scope error message is raised.
D)   Python creates a temporary variable with the same name, and the value of that variable exists only within the scope of the function.E) A) and B)
F) A) and C)

Question 6

What higher-order function process applies a function to each value in a sequence and returns a new sequence of the results?

Accepted Answer

A)   mapping
B)   filtering
C)   reducing
D)   associatingE) A) and B)
F) A) and C)

Question 7

A program's namespace is the set of its variables and their values.

Accepted Answer

A) True 
 B)False

Question 8

What is the name for a diagram that shows the relationships among a program's functions and the passage of data between them?

Accepted Answer

A)   data map
B)   structure map
C)   structure chart
D)   program flowchartE) B) and C)
F) None of the above

Question 9

The Fibonacci sequence is a series of values that can be easily calculated with what kind of function?

Accepted Answer

A)   recursive function
B)   repeating function
C)   duplicating function
D)   compounding functionE) All of the above
F) B) and C)

Question 10

What is the lambda function in Python utilized for?

Accepted Answer

A)   It allows for the creation of an anonymous function, which contains the names of its arguments and a single expression.
B)   It creates an overloaded function, such that the function can be repurposed on the fly.
C)   It allows for the tracking of use of a targeted function.
D)   It allows for multiple higher-order functions to be utilized on the same selection statements.E) B) and D)
F) C) and D)

Question 11

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

Accepted Answer

A) True 
 B)False

Question 12

Like with an infinite loop, an infinite recursion eventually halts execution with an error message.

Accepted Answer

A) True 
 B)False

Question 13

Most recursive functions expect no arguments.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following statements are accurate? (Choose two.)

Accepted Answer

A)   Parameters for a function receive values when they are declared.
B)   When module variables are introduced in a program, they are immediately given a value.
C)   A nested variable can assign value to a variable outside of its scope.
D)   Temporary values receive their values as soon as they are introduced.E) B) and D)
F) B) and C)

Question 15

The first five numbers of the Fibonacci sequence are 1 3 5 8 13.

Accepted Answer

A) True 
 B)False

Question 16

What are two common methods by which functions serve as abstraction mechanisms? (Choose two.)

Accepted Answer

A)   The elimination of redundant, or repetitious code.
B)   The availability of detailed docstring data.
C)   The hiding of complicated processes.
D)   The use of a bottom-up approach to design.E) None of the above
F) A) and B)

Question 17

When you design an algorithm, it should be general enough to provide a solution to many problem instances, not just one or a few of them.

Accepted Answer

A) True 
 B)False

Question 18

In a recursive function, what is used to determine whether to stop or to continue with another recursive step?

Accepted Answer

A)   terminator value
B)   base case
C)   recursion factor
D)   step counterE) A) and B)
F) A) and C)

Question 19

The assignment of roles and responsibilities to different actors in a program is known as what type of design?

Accepted Answer

A)   role-based access design
B)   responsibility-driven design
C)   delegated assignment design
D)   task abstraction designE) A) and B)
F) B) and C)

Question 20

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

Accepted Answer

A) True 
 B)False

Exam 6: Design With Functions

What are two common methods by which functions serve as abstraction mechanisms? (Choose two.)

Correct AnswerverifiedShow Answer

In a recursive function, what is used to determine whether to stop or to continue with another recursive step?

Correct AnswerverifiedShow Answer

When you design an algorithm, it should be general enough to provide a solution to many problem instances, not just one or a few of them.

Correct AnswerverifiedShow Answer

What is the lambda function in Python utilized for?

Correct AnswerverifiedShow Answer

Most recursive functions expect no arguments.

Correct AnswerverifiedShow Answer

The first five numbers of the Fibonacci sequence are 1 3 5 8 13.

Correct AnswerverifiedShow Answer

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 AnswerverifiedShow Answer

What higher-order function process applies a function to each value in a sequence and returns a new sequence of the results?

Correct AnswerverifiedShow Answer

A program's namespace is the set of its variables and their values.

Correct AnswerverifiedShow Answer

What happens when a function tries to assign or change a value of a variable that has been defined at the module level?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What is the name for a diagram that shows the relationships among a program's functions and the passage of data between them?

Correct AnswerverifiedShow Answer

In Python, what is the term that is used to describe the area of a program text in which an object name refers to a given value?

Correct AnswerverifiedShow Answer

The Fibonacci sequence is a series of values that can be easily calculated with what kind of function?

Correct AnswerverifiedShow Answer

Like with an infinite loop, an infinite recursion eventually halts execution with an error message.

Correct AnswerverifiedShow Answer

How does top-down design work?

Correct AnswerverifiedShow Answer

It is possible to construct any algorithm using only Python's built-in operators and control statements.

Correct AnswerverifiedShow Answer

Which of the following statements are accurate? (Choose two.)

Correct AnswerverifiedShow Answer

The assignment of roles and responsibilities to different actors in a program is known as what type of design?

Correct AnswerverifiedShow Answer

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