What is process? A program? What is the difference?

$2.$ What is a user process? A daemon process?

$3.$ How are processes identified?

$4.$ What is a parent process?

$5.$ Which process has no parent?

$6.$ What command displays the running processes for your login shell? For the system?

$7.$ How can you manage the output of the $$ps $$e$$ command, if the output is very lengthy?

$8.$ What does a process flag $=4$ indicate?

$9.$ What does a process state of $$S$$ indicate? Process state of $$R$?$

$10.$ If a process has a priority $($PRI$)$ of $127,$ what does it mean?

$11.$ What does the $/$proc subdirectory contain? How can you view it$?$

$12.$ What does the top command display?

$13.$ What is a rogue process? A zombie process? How do you stop rogue and zombie processes?

$14.$ What is a kill signal? How is it used?

$15.$ What is the absolute kill signal called? How does it work?

$16.$ How many and what main types of Linux commands can be executed?

$17.$ What is the name of the activity created by a Bash shell to generate a new sub shell in which a program is to be executed?