To practice the conversion from binary to decimal, let's do a couple problems together: $1.$ You have the following binary number:$10101010.$ Convert it into decimal.

$2.$ You have the following binary number:$01110111.$ Convert it into decimal.

It is important to notice what the range of possible decimal values for each byte is$.$ The lower bound is given when each bit is $0$ and the upper bound is when each bit is $1.$ So $00000000$ will give us $0$ and $11111111$ will give us $255.$ This is the reason why IPv$4$ addresses cannot go above the value of $255.$