Name: _____________________

                                                 id#: _____________________


			 UNIX System Administration Exam 9 

Notes:
	No circular definitions please.
	Be very specific.
	All terms should be assumed to be in the context of UNIX & TCP/IP.
	Grading:
         	3 free points
         	1 point for each correct answer
        	-1 point for each incorrect, partial, or unintelligible answer
         	0 points for each unanswered question
-------------------------------------------------------------
What does it mean for a file to be setuid?



What is the NAT architecture?



What is the purpose of the ARP protocol?



What is the role of DHCP in PPP?



What information is contained in each non-comment line of the /etc/hosts file?



Describe the use of the "route" command and give an example.



Why does /etc/resolv.conf specify nameservers by IP address instead of by name?