$1-$ What is significant about the address $127\mathrm{.}0\mathrm{.}0\mathrm{.}1?$

$2-$ Given the network $10\mathrm{.}0\mathrm{.}0\mathrm{.}0/16,$ write down one address that is inside the same network, and another that is outside of this network. How many hosts could fit inside this network