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. Authentication related messages log
/var/log/secure
vsftpd restart
rsync /home root@server6.example.com:/tmp
$ tar xzvf home.tar.gz /home

2. Remove a package named firefox4
/etc/sysconfig/network
rpm localinstall pkg.rpm --nogpgcheck
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)
yum remove firefox4

3. Restart ssh services
#rpm -uvh [package name]
ip masqu
service sshd restart
#yum grouplist

4. Search for command in the doc directory
updating the kernel
# ls -l /usr/share/doc | grep httpd
/etc/sysconfig/network
/var/log/messages

5. Local file copy of /home/test1.html to /var/www/html/test1.html
yum install tigervnc-server
cp /home/test1.html /var/www/html/test1.html
#iptables -L
ssh-copy-id root@server6.example.com

6. Edit files with cat until the _EOF is found
/etc/hosts
cat >> some_file << _EOF
/var/log/messages
#iptables -D INPUT -p tcp --dport 21 -j accpet

7. Gets kernel version and release number
/etc/sysconfig/iptables
#uname -r
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)
2>&1

8. Primary configuration of ssh
# virsh create /etc/libvert/qemu/vm_file_name.xml
/etc/ssh/sshd_config
/var/log/secure
#yum grouplist

9. Package file named pkg.rpm
tar xvzf /tmp/etc.tar.gz /etc
Fully Qualified Domain Name
tar czvf /tmp/etc.tar.gz /etc
rpm -qp pkg.rpm

10. Install a package with yum
rpm -q pkg.rpm --scripts
#iptables -L
/var/log/secure
#yum install [package name]

11. Documentation about sysconfig network scripts
/usr/share/doc/initscripts-*/sysconfig.txt
/etc/vsftpd/vsftpd.conf rpm -ql vsftpd
#rpm -qi [package name]
# virsh create /etc/libvert/qemu/vm_file_name.xml

12. Uninstall a package group with yum
#yum groupremove "group name"
man search :/repository
ssh-copy-id root@server6.example.com
#rpm -qi [package name]

13. Query information files with RPM
#rpm -qi [package name]
/etc/rsyslog.conf
rpm -qc httpd
vncpasswd

14. All messages sent at info priority or higher
/var/log/messages
/var/log/cron
ntpdate -b instructor
tar cxtv

15. Grep for lines that do not match (-v)
# yum
$ grep -v ^# /etc/nsswitch.conf
/etc/sysconfig/iptables
# cat /var/log/messages | grep [Ff]ailed | less

16. Extract /tmp/etc.tar.gz to /etc
#iptables -F
tar xvzf /tmp/etc.tar.gz /etc
tar czvf /tmp/etc.tar.gz /etc
#yum install [package name]

17. Sync ntp time with the instructor
#yum groupremove "group name"
/var/log/messages
# virsh create /etc/libvert/qemu/vm_file_name.xml
ntpdate -b instructor

18. Update a package
rsync -PHR /home/test1.html root@server6.example.com:/var/pub
#iptables -L
yum update
yum info firefox4

19. List VMs
system-config-firewall tui
#virsh list
/etc/sysconfig/resolv.conf
vncviewer -via student@server6 localhost:2

20. Stores IPtables rules (filter) chains - input forward output are persistant
# renice -10 proc-id
*.debug /var/log/debug.log service rsyslog restart
#iptables -L
/etc/sysconfig/iptables

21. Get information about a package named firefox4
yum info firefox4
#iptables -L
add/remove software GUI
*.debug /var/log/debug.log service rsyslog restart

22. fqdn
insert as opposed to append
Fully Qualified Domain Name
tar fzj
yum update

23. Kill a VM
#virsh destroy domain-id
rpm -qp pkg.rpm
/dev
vsftpd

24. Search for a package with firefox in the description
/var/log/secure
rsync -PHR /home/test1.html root@server6.example.com:/var/pub
/dev
yum search firefox

25. Extract a star compressed file
#yum groupremove "group name"
# star -x -f=home.star
/usr/share/doc/initscripts-*/sysconfig.txt
/etc/yum.repos.d/

26. Where are HTML pages hosted?
/var/www/html/
/etc/sysconfig/vncservers rpm -ql tigervnc-server
/usr/share/doc/initscripts-*/sysconfig.txt
# vi /etc/inittab change - id:3:initdefault:

27. Grep with ignoring case
# grep -i
service vncserver restart chkconfig vncserver on
vsftpd restart
/var/log/secure

28. Install a pkg.rpm locally
MailTo=student@server6.example.com
yum install tigervnc-server
rpm localinstall pkg.rpm --nogpgcheck
/etc/sysconfig/network

29. original DNS config file - still used
GUI menu system/administratrion/firewall
*.debug /var/log/debug.log service rsyslog restart
rpm -qp pkg.rpm
/etc/sysconfig/resolv.conf

30. Configuration for VNC
/etc/sysconfig/vncservers rpm -ql tigervnc-server
/etc/services
name-version-release.architecture.rpm
GUI menu system/administratrion/firewall

31. Install the star compression tool create an archive with the star tool.
# star -xattr -H=exustar -c -f=home.star /home/
yum install firefox4
#rpm -qi [package name]
tar czvf /tmp/etc.tar.gz /etc

32. Install a package named firefox4
tar czvf /tmp/etc.tar.gz /etc
yum install firefox4
/etc/services
rsync /home root@server6.example.com:/tmp

33. An example of searching through system logs with interpretation.
/var/log/secure
IPtables output chain
/etc/ssh/sshd_config
# cat /var/log/messages | grep [Ff]ailed | less

34. Show IP address with the IP command
2>&1
#ip addr show
#virsh destroy domain-id
/etc/ssh/sshd_config

35. Import a public key
/var/log/secure
rpm --import [public key location]
rpm -qp pkg.rpm
yum update

36. Get a list of package groups from yum
#yum grouplist
rsync /home/test1.html root@server6.example.com:/var/pub
IPtables output chain
cat >> some_file << _EOF

37. Remote file copy /home/test1.html to the /var/pub directory on server6
rsync /home/test1.html root@server6.example.com:/var/pub
vsftpd restart
tar xvzf /tmp/etc.tar.gz /etc
#yum remove [package name]

38. Searches for page within the #man yum
#iptables -L
man search :/repository
yum install firefox4
/etc/sysconfig/network

39. Stores filewall rules for the system.
tar cxtv
$ tar xzvf home.tar.gz /home
/etc/hosts
/etc/sysconfig/iptables

40. Start the GUI for date configuration
service vncserver restart chkconfig vncserver on
vsftpd restart
system-config-date
service sshd restart

41. Acting as a router with forwarding
# yum
yum install tigervnc-server
ip masqu
/etc/sysconfig/iptables

42. Start vsftp service
#yum install [package name]
vsftpd restart
#virsh list
rpm --import [public key location]

43. tar options for file name - gzip - and bzip2
service vncserver restart chkconfig vncserver on
tar fzj
/etc/rsyslog.conf
/var/log/secure

44. Delete a rule from iptables
#iptables -D INPUT -p tcp --dport 21 -j accpet
/dev
add/remove software GUI
/etc/yum.repos.d

45. Append add to the end of the IPtables rules. insert will put rule above the deny all rule.
insert as opposed to append
#rpm -ivh [package name]
# vi /etc/inittab change - id:3:initdefault:
yum provides

46. List scripts that can be run after installation of pkg.rpm
yum update
#virsh destroy domain-id
/etc/sysconfig/iptables
rpm -q pkg.rpm --scripts

47. Persist the web server on boot
.spec
name-version-release.architecture.rpm
rpm --import [public key location]
chkconfig httpd on

48. Use lftp to connect
tar czvf /tmp/etc.tar.gz /etc
/etc/services
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd
#iptables -F

49. Query all documentation with RPM
rpm localinstall pkg.rpm --nogpgcheck
/usr/share/doc/initscripts-*/sysconfig.txt
#rpm -qad [package name]
ln -s /pub /var/www/html/pub

50. Query configuration files with RPM
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)
ssh-copy-id root@server6.example.com
yum provides
#rpm -qac [package name]