What does this have to do with IP addresses?

1+2+4+8+16+32+64+128=255

0000 0000 0000 0000 0000 0000 0000 0000

1

4

8

16

32

64

128

2

255

255

255

255

Byte

Nibble

Nibble

How many options are there per byte?

I cannot overemphasize the importance of this slide