Using random numbers with Arduino

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Engineering, Information Technology (IT), Architecture
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Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What components are required to set up the circuit for this Arduino tutorial?
Three LEDs, three 220 ohm resistors, an Arduino board, a breadboard, and a jumper wire
Two LEDs, two 220 ohm resistors, an Arduino board, a breadboard, and a jumper wire
Two LEDs, three 220 ohm resistors, an Arduino board, a breadboard, and a jumper wire
Three LEDs, two 220 ohm resistors, an Arduino board, a breadboard, and a jumper wire
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is the random number variable declared as a long data type?
Because it can store decimal numbers
Because it can hold larger values than an integer
Because it is faster to process
Because it is the default data type in Arduino
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the random function return when given a single parameter?
A number between 1 and the parameter, exclusive
A number between 0 and the parameter, inclusive
A number between 0 and the parameter, exclusive
A number between 1 and the parameter, inclusive
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the issue with using the random function without a seed?
It generates numbers in a fixed pattern
It does not generate any numbers
It generates the same sequence of numbers each time
It generates truly random numbers
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you ensure different random sequences in each execution of the sketch?
By using a fixed seed value
By using the analog read function on an unconnected pin
By resetting the Arduino board
By using a different random function
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of using analog read on an unconnected pin?
To generate a fixed number
To provide a random seed value
To read the voltage of the pin
To reset the Arduino board
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the random number used to control the LEDs?
By using the random number to adjust the LED brightness
By using the random number to change the LED color
By using the random number to select which LED to turn on
By using the random number as a delay time
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