CS$3502$ Midterm Question Examples $1.$ Short Answer Questions $(5$ question, $10$ points each$)$ Two sample questions: Please give brief and precise answers to the following questions. $1)$ What is a process? What are the differences of threads and processes? $2)$ In your own words, give the advantages and disadvantages of interrupt and polling. $2.$ Coding Questions $(50$ points in total, $25$ points each$)$ One sample question: For the next two questions, assume the following code is compiled and run on a modern Linux machine $($assume any irrelevant details have been omitted$)$: main$()\{$ int a $=0$; int rc $=$ fork$()$; a$++$; if $($rc $==0)\{$ rc $=$ fork$()$; a$++$; $\}$ else $\{$ a$++$; $\}$ printf$($Hello$!)$; printf$($a is $\%$d $,$ a$)$; $\}$