Question $3-($based on: $15\mathrm{.}7$ p$.664$ and $16\mathrm{.}7,$ p$.714)$

$6$

$(15\mathrm{.}7,$ p$\mathrm{.}664)$: Why do operating systems mount the root file system automatically at boot time?

$(16\mathrm{.}3,$ p$\mathrm{.}713)$: An experimental addition to UNIX allows a user to connect a watchdog program to a file. The watchdog is invoked whenever a program requests access to the file. The watchdog then either grants or denies access to the file. Discuss two pros and two cons of using watchdogs for security.

$(4)$

$2$