COMP110 Quiz 01: Functions & Loops Definitions Study Set

You can use a while loop to iterate through each item in a collection. (T/F)

T

A parameter list is a part of the function's definition. (T/F)

T

There can be conditions such that the code block inside of a while loop won't run. (T/F)

T

What is the type of condition in the following while statement:

while condition:

bool

str

int

float

bool

When a function call is encountered, the return address "RA" is established in its frame before jumping to the first statement of the function's body (T/F).

T

Of the following, what does a function not do

abstract away processes

break larger programs into smaller sub-programs

define new data types

define new data types

Function calls are expressions that evaluate to a specific data type. (T/F)

T

If the condition in a while statement evaluates to _____, the program enters the repeat block and evaluate the first statement of the repeat block. (T/F)

T

When a function definition is encountered, the code block inside that function is run. (T/F)

F

print() and return perform identical commands. (T/F)

F

If the condition in a while statement evaluates to _____, the program exits the repeat block and continues to the next statement at the same level of indentation as the while keyboard. (T/F)

F

Defining a function is the same as calling it.

F

def flyer (w: int, x: str) -> int:

y: int = w + len (x)

return y

Which line(s) is a return type declared?

1

def flyer (w: int, x: str) -> int:

y: int = w + len (x)

return y

List the name of the function defined.

flyer

def flyer (w: int, x: str) -> int:

y: int = w + len (x)

return y

On what line(s) are parameters found?

1

Write a line of code to call the function defined above with the arguemnts 3 and "plane".

flyer(3, "plane")

iteration

one pass through a while loop

often "i" (or "idx") is used as the counter to track the loop

The while statement allows you to repeat a block of statements in your program. (T/F)

T

The while statement is called a loop, because the control of your program jumps back up to a point earlier in the program that the end of the repeat block. (T/F)

T

The condition in the while statement's syntax must be a bool expression (T/F).

T

If the conidtion in a while statement evaluates to False, the program exits the repeat block and continues to the next statement at the same level of indentation as the while keyboard. (T/F)

T

If the condition in a while statement evaluates to True, the program enters the repeat block and dvalutes the first statement of the repeat block. (T/F)

T

After the final statement of the repeat block is evaluated, the program jumps back up to the condition of the while statement and evaluates it again. (T/F)

T

You can write any statements you'd like inside of the repeat block, such as other print statements, variable declaration and assignemnt statements, conditional if-else statements, while loop statements, and so on. (T/F)

T

To avoid an infinite loop which of the following should be true:

Something must change in the repeat block taht cause the while loop's condition to change.

Forward progress must be made toward the while loop condition becoming True.

Forward progress must be made toward the while loop condition becoming False.

1, 3

Your computer knows when you write an infinte loop in your program and will not run your program if it sees it is doing pointless, endless work on your behalf. (T/F)

F

The phrase "if loop" is incorrect and should not be said. The phrase "while loop" is correct. (T/F)

T

You can use a while loop to iterate through each item in a collection. For example, a str is a collection of characters, and you can use a while loop to reason about each character one-by-one. (T/F)

T

When iterating through a collection using the index/subscription operator, such as with a string, it is common to use your counter variable as the index operator's int value in order to access individual items in the collection one-by-one. (T/F)

T

The big, valuable idea of a loop is that it allows you to write a fixed number of lines of code that can process arbitrarily sized amounts of data and/or computations. (T/F)

T

Functions are used for which of the following:

- Process abstraction

- Defining new data types

- Breaking larger problems into smaller sub-programs (task decomposition)

Process abstraction

Breaking larger problem into smaller sub-programs

Defining a function is the same a calling it. (T/F)

F

A function definition can be thought of as a specfication of the instructions which will be carried out when the function is called. (T/F)

T

Function definitions are found in which of the following ways:

Built-in functions automatically avilable

Imported from libraries

Defined in the same python file/module

All the above

Which of the following will appear in a valid functiona call expression?

the def keyword

the name of the function

an argument list

a parameter list

a function body

the name of the function

an arugment list

Which of the following will appear in a valid functiona definition signature?

the def keyword

the name of the function

an argument list

a parameter list

a function body

a return type preceeded by ->

ends with a :

def keyword

name of the function

parameter list

a return type preceeded by ->

ends with a :

Which of the following will appear in a valid functiona definition?

the def keyword

the name of the function

an argument list

a parameter list

a function body

a return type preceeded by ->

ends with a :

signature

signature

Each argument is an expression. (T/F)

T

The signature line tells anyone who wants to use a function what it needs in order to be called and what you can expect returned back as a result. (T/F)

T

Parameters are found in function definitions. Arguments are found in fucntion calls. (T/F)

T