11. which of the following commands can be used to extract a tar file? a. tar -vf b. tar -xvf c. tar -e d. tar -v
12. which of the following commands can be used to create a tar archive file in verbose mode? a. tar -v b. tar -cvf c. tar -c d. tar -vf
13. in what file do you change default shell variables for all users? a. /etc/bashrc b. /etc/profile c. ~/.bash_profile d. /etc/skel/.bashrc e. /etc/skel/.bash_profile
14. which two files in a user's home directory are used to customize the bash environment? a. bash and .bashrc b. bashrc and-bash_conf c. bashrc and bashprofile d. .bashrc and .bash_profile e. bash.conf and .bash_profile
15. where are the default settings for the useradd command kept? a. /etc/default/useradd b. /etc/sysconfig/useradd.cfg c. /etc/.useradd d. /etc/defaults/useradd e. /etc/login.defs
16. which protocol is used by ping? a. tcp b. udp c. smb d. icmp e. ospf
17. if you suspect that a gateway machine on your network has failed but you are unsure which machine, which command will help locate the problem? a. ps b. netstat c. nsloopup d. ifconfig e. traceroute
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2006/10/14
