Explain in details Network and systems Security

$(15$ Marks$)$

Outline and explain any five $(5)$ mechanisms of Securing Network and systems Resources and Services in a financial and cooperate organization $(15$ Marks$)$

Subnet this IP Address $192\mathrm{.}168\mathrm{.}1\mathrm{.}10/22$ and determine the following: $(20$ Marks$)$

i$.$ Number of Host

ii$.$ Subnet

iii. Subnet Mask

iv$.$ Block Size

v$.,1^{st}$ and last IP addresses of the $3^{rd}$ Subnet and Broadcast Address