#13. System A is using TCP/IP over Ethernet to contact System B on its subnetwork. System A has System B’s IP address but no Ethernet address. Which protocol is used to establish System B’s Ethernet address?
#17. Which three series of commands should be used to completely dismantle the cached file system /export/home_cache created to cache the /export/home file system using a cachelD of homecached? (Choose three.)
#19. You are in a directory containing only text files. You want to use grep to search all these files for lines which contain “A” at the start of a line. Which command should you use?