Quiz: Programming Concepts – The Data Analyst Toolkit

A __________ is a container stored in the computer’s memory?

function
variable
float

A variable is comprised of a __________ and a ______________?

name, firstname
stored value, string
name, stored value

How can the variable be used and manipulated in a program?

by referencing its name
by calling a function
by referencing its stored value

You want to store 25 values in a program you’re developing. Are you going to declare 25 separate variables or only one array which contains the 25 values? Why?

declare 25 separate variables because we can name them separately
declare one array with the 25 values inside the array because it’s just easier
declare one array with the 25 values inside because it avoids confusion, it’s easier to sort the values, keep track of a list and it’s better for memory performance

What is an algorithm?

A programming algorithm is like a recipe that describes the exact steps needed for the computer to solve a problem
A JavaScript library by Facebook
A computer program called to do Forex trading

How do you create a conditional statement in an algorithm?

an if-then-else statement
a for loop
variable assignment.

If-then statements can NOT be nested, meaning you can NOT have an if-then statement inside another if-else statement.

True
False

There are 2 kinds of loops, for and while loops.

True
False

When are you going to use a for loop?

When you don’t know the number of times the loop body needs to be executed
When you know the number of times the loop body needs to be executed
None of the above

When are you going to use a while loop?

When you don’t know the number of times the loop body needs to be executed
When you know the number of times the loop body needs to be executed
None of the above

A ___________ is an implementation of an algorithm?

function
conditional programming statement
variable assignment

What are called ‘inputs’ in a function?

a name so we can “call” the function later in the program
variables we return once calculations are performed on the variables
variables we pass to the function to perform actions on these variables

Which of the following functions repeats until a condition is met?

if(x<10){…. Instructions…}
else if(x<10){…. Instructions…}
while(x<10){…. Instructions…}

__________ means to repeat in order to achieve, or get closer to, a desired goal

program
iterate
sequence

Dividing a program into functions can make the program easier to debug.

True
False

All functions must return a value to the function that called it indicating the result of the function’s execution.

True
False

What term is given to passing back of the value calculated in a function?

Overwritten value
Returned value
Repeated value

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