Qn$\mathrm{.}6$

a$)$ Define a deadlock $(5$ Marks$)$

b$)$ Examine the conditions that may lead to a deadlock $(8$ Marks$)$

c$)$ Examine the threats that a computer system may face. $(7$ Marks$)$

d$)$ Explain ways in which these threats in question $($c$)$ above may be curbed. $(5$ Marks$)$