Test your basic knowledge |

RHCSA Commands

Subjects : certifications, it-skills, rhcsa

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. RPM package naming
/etc/sysconfig/iptables
name-version-release.architecture.rpm
rpm localinstall pkg.rpm --nogpgcheck
man search :/repository

2. See files installed with a package named vsftpd
ntpdate -b instructor
cp /home/test1.html /var/www/html/test1.html
ssh-copy-id root@server6.example.com
rpm -ql vsftpd

3. tar options for file name - gzip - and bzip2
# renice -10 proc-id
#rpm -ivh [package name]
tar fzj
rpm localinstall pkg.rpm --nogpgcheck

4. Install the star compression tool create an archive with the star tool.
# star -xattr -H=exustar -c -f=home.star /home/
updating the kernel
service sshd restart
.spec

5. Create a symbolic link to /pub on the FTP and name it pub
/etc/yum.repos.d
/var/log/maillog
rpm localinstall pkg.rpm --nogpgcheck
ln -s /pub /var/www/html/pub

6. Set a VNC password
service vncserver restart chkconfig vncserver on
vncpasswd
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd
/etc/services

7. Should be done with yum and install as opposed to update if done with RPM option "i" should be used and not "u"
/var/lib/rpm
updating the kernel
/var/log/secure
#rpm -qi [package name]

8. Stores IPtables rules (filter) chains - input forward output are persistant
/etc/sysconfig/iptables
/var/www/html/
/usr/share/doc/initscripts-*/sysconfig.txt
yum update

9. Generate SSH Keys
/usr/share/doc/initscripts-*/sysconfig.txt
ssh-keygen
#yum info [package name]
rpm -q pkg.rpm --scripts

10. Get a list of package groups from yum
#yum grouplist
rsync /home root@server6.example.com:/tmp
yum install tigervnc-server
# grep -i

11. Extract /tmp/etc.tar.gz to /etc
chkconfig httpd on
man search :/repository
tar xvzf /tmp/etc.tar.gz /etc
IPtables forward chain

12. Search for command in the doc directory
#iptables -I INPUT -p tcp --dport 21 -j Accept
cp /home/test1.html /var/www/html/test1.html
/etc/sysconfig/iptables
# ls -l /usr/share/doc | grep httpd

13. List installed and available packages
rhn_register
/etc/services
yum list
#rpm -qi [package name]

14. Process packets coming out of the system
/var/log/cron
ln -s /pub /var/www/html/pub
IPtables output chain
service ntpd restart

15. Process packets being forwarded through the system
#yum info [package name]
palimpsest
IPtables forward chain
#yum groupinstall "group name"

16. Shell config tool gropued like GUI firewall configurater.
rpm -qc httpd
#yum grouplist
system-config-firewall tui
rhn_register

17. Repos for yum
MailTo=student@server6.example.com
/etc/yum.repos.d
#virsh list
yum search firefox

18. Import a public key
palimpsest
rpm -qc httpd
#yum groupinstall "group name"
rpm --import [public key location]

19. See the configuration files installed with a package named httpd
rpm -qc httpd
#yum info [package name]
# virsh create /etc/libvert/qemu/vm_file_name.xml
/etc/ssh/sshd_config

20. FTP package used in RHEL 6
#iptables -I INPUT -p tcp --dport 21 -j Accept
rpm --import [public key location]
# star -xattr -H=exustar -c -f=home.star /home/
vsftpd

21. Search for a package within all packages
Fully Qualified Domain Name
#rpm -qa | grep [package name]
system-config-date
#ip addr show

22. Remote file copy /home/test1.html to the /var/pub directory on server6 while preserving metadata
MailTo=student@server6.example.com
/etc/ssh/sshd_config
/etc/vsftpd/vsftpd.conf rpm -ql vsftpd
rsync -a /home/test1.html root@server6.example.com:/var/pub

23. Uninstall a package group with yum
add/remove software GUI
# vi /etc/inittab change - id:3:initdefault:
#yum groupremove "group name"
vsftpd restart

24. Messages related to cron log
rhn_register
# ls -l /usr/share/doc | grep httpd
/var/log/cron
chkconfig vsftpd on

25. Get more information on a package availale through yum
cp /home/test1.html /var/www/html/test1.html
#yum info [package name]
rpm -qp pkg.rpm
/var/www/html/

26. GUI install / uninstall with yum
/var/log/maillog
IPtables output chain
chkconfig vsftpd on
add/remove software GUI

27. Copy a public ssh key to server6
/usr/share/doc/initscripts-*/sysconfig.txt
vsftpd
service vncserver restart chkconfig vncserver on
ssh-copy-id root@server6.example.com

28. Query information files with RPM
tar fzj
#rpm -qi [package name]
# vi /etc/inittab change - id:3:initdefault:
/etc/ssh/sshd_config

29. Grep with ignoring case
$ grep -v ^# /etc/nsswitch.conf
vncviewer -via student@server6 localhost:2
rsync /home/test1.html root@server6.example.com:/var/pub
# grep -i

30. handles dependencies while RPMs do not uses preconfigured repos
$ tar czvf home.tar.gz /home
#yum
/var/log/messages
#rpm -uvh [package name]

31. Local host file (contains hostname). Can contain local system DNS.
2>&1
/etc/hosts
#rpm -qi [package name]
rpm -qp pkg.rpm

32. Acting as a router with forwarding
#iptables -I INPUT -p tcp --dport 21 -j Accept
# virsh create /etc/libvert/qemu/vm_file_name.xml
ip masqu
/var/log/cron

33. List iptables
/var/www/html/
#iptables -L
/var/log/maillog
nautilus

34. Create a gzip-compressed backup of /etc in /tmp
#rpm -ivh [package name]
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd
tar czvf /tmp/etc.tar.gz /etc
logwatch

35. Get information about a package named firefox4
# grep -i
# renice -10 proc-id
yum info firefox4
service sshd restart

36. Extract a star compressed file
# star -x -f=home.star
service sshd restart
yum list
service vncserver restart chkconfig vncserver on

37. Basic add rule for iptables not persistant unless saved with #/etc/init.d/iptables save
#uname -r
#ip addr show
#iptables -I INPUT -p tcp --dport 21 -j Accept
IPtables output chain

38. Delete a rule from iptables
tar xvzf /tmp/etc.tar.gz /etc
/etc/vsftpd/vsftpd.conf rpm -ql vsftpd
#iptables -D INPUT -p tcp --dport 21 -j accpet
yum install tigervnc-server

39. Install a package with yum
yum list
rsync -PHR /home/test1.html root@server6.example.com:/var/pub
#yum install [package name]
nautilus

40. Searches for page within the #man yum
# cat /var/log/messages | grep [Ff]ailed | less
# yum
man search :/repository
chkconfig vsftpd on

41. Disks available for partitions
palimpsest
#yum remove [package name]
/etc/sysconfig/resolv.conf
/dev

42. Connect with VNC viewer securely
/etc/sysconfig/iptables
vncviewer -via student@server6 localhost:2
#rpm -qad [package name]
#uname -r

43. Configuration file for system logs
/etc/yum.repos.d
yum provides
.spec
/etc/rsyslog.conf

44. tar options for create - extract - test - and verbose
tar cxtv
/usr/share/doc/initscripts-*/sysconfig.txt
/dev
ln -s /pub /var/www/html/pub

45. Install star
rpm --import [public key location]
# yum
/var/log/cron
# virsh create /etc/libvert/qemu/vm_file_name.xml

46. Gets kernel version and release number
/etc/services
#uname -r
name-version-release.architecture.rpm
cat >> some_file << _EOF

47. Append add to the end of the IPtables rules. insert will put rule above the deny all rule.
#yum groupremove "group name"
insert as opposed to append
yum install tigervnc-server
logwatch

48. Create a tar ball with gzip compression of the home dir
/var/log/maillog
/etc/hosts
$ tar czvf home.tar.gz /home
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd

49. Redirect errors to std out
2>&1
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd
tar xvzf /tmp/etc.tar.gz /etc
rpm -qc httpd

50. Append this to the /etc/rsyslog.conf to send mail to student@server6.example.com
rpm -ql vsftpd
MailTo=student@server6.example.com
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd
yum update