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 upgrade package u upgrade v verbose h hash
#yum groupinstall "group name"
rsync -PHR /home/test1.html root@server6.example.com:/var/pub
#rpm -uvh [package name]
/etc/sysconfig/vncservers rpm -ql tigervnc-server

2. Determine which package provides SSH
/etc/services
add/remove software GUI
yum provides "*/sbin/sshd"
chkconfig vsftpd on

3. Program to analyze standard log files and send a summary email to root
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)
logwatch
ln -s /pub /var/www/html/pub
# yum

4. File holding services - ports - protocols assoicated
ssh-copy-id root@server6.example.com
yum provides
/etc/ssh/sshd_config
/etc/services

5. Should be done with yum and install as opposed to update if done with RPM option "i" should be used and not "u"
updating the kernel
rhn_register
yum install firefox4
#yum grouplist

6. Adjust the persistent runlevel
# vi /etc/inittab change - id:3:initdefault:
# cat /var/log/messages | grep [Ff]ailed | less
logwatch
.spec

7. Start the GUI for date configuration
#yum install [package name]
yum install firefox4
# star -x -f=home.star
system-config-date

8. Stores filewall rules for the system.
/etc/sysconfig/iptables
ssh-copy-id root@server6.example.com
#iptables -D INPUT -p tcp --dport 21 -j accpet
palimpsest

9. Copy a public ssh key to server6
service sshd restart
2>&1
#yum groupinstall "group name"
ssh-copy-id root@server6.example.com

10. Extract a star compressed file
/etc/hosts
# star -x -f=home.star
yum remove firefox4
# star -xattr -H=exustar -c -f=home.star /home/

11. Searches for page within the #man yum
#yum
yum update
man search :/repository
#iptables -F

12. Restart vnc and persist on boot
MailTo=student@server6.example.com
service vncserver restart chkconfig vncserver on
# star -x -f=home.star
# cat /var/log/messages | grep [Ff]ailed | less

13. Query configuration files with RPM
# grep -i
#rpm -qac [package name]
#rpm -ivh [package name]
[repo identifier] name=[repo name] baseurl=[repo url] enabled = 1 gpgcheck = 1 (0 for local system) gpgkey = file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release -file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-beta

14. All messages sent at info priority or higher
2>&1
/var/log/messages
service sshd restart
GUI menu system/administratrion/firewall

15. Local file copy of /home/test1.html to /var/www/html/test1.html
/etc/sysconfig/iptables
#virsh list
ssh-keygen
cp /home/test1.html /var/www/html/test1.html

16. Shows network / global network variables: NETWORKING=yes HOSTNAME=shuttlehosti GATEWAY=192.168.88.1
Fully Qualified Domain Name
#rpm -qi [package name]
rhn_register
/etc/sysconfig/network

17. An example of searching through system logs with interpretation.
updating the kernel
# cat /var/log/messages | grep [Ff]ailed | less
chkconfig vsftpd on
/etc/sysconfig/network

18. Use lftp to connect
#yum install [package name]
yum list
#iptables -L
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd

19. Extract a gzipped tar ball in your home directory
#ip addr show
$ tar xzvf home.tar.gz /home
rpm -q pkg.rpm --scripts
#yum info [package name]

20. GUI File Manager
nautilus
#uname -r
# virsh create /etc/libvert/qemu/vm_file_name.xml
#iptables -L

21. Messages related to cron log
# yum
/var/log/cron
#yum groupinstall "group name"
insert as opposed to append

22. Shell config tool gropued like GUI firewall configurater.
system-config-firewall tui
/etc/ssh/sshd_config
#ip addr show
yum list

23. Query information files with RPM
$ tar czvf home.tar.gz /home
#yum remove [package name]
#rpm -qi [package name]
#ip addr show

24. Configuration for VNC
/usr/share/doc/initscripts-*/sysconfig.txt
#iptables -L
/etc/sysconfig/vncservers rpm -ql tigervnc-server
ip masqu

25. Remote copy /home/test1.html to the /var/pub directory on server6 with progress - preserving hard links - and using relative path names
# cat /var/log/messages | grep [Ff]ailed | less
MailTo=student@server6.example.com
rsync -PHR /home/test1.html root@server6.example.com:/var/pub
/etc/hosts

26. Remove a package named firefox4
service ntpd restart
yum remove firefox4
# virsh create /etc/libvert/qemu/vm_file_name.xml
yum info firefox4

27. Search for command in the doc directory
yum install tigervnc-server
yum list
# ls -l /usr/share/doc | grep httpd
logwatch

28. Gets kernel version and release number
yum install tigervnc-server
#uname -r
/etc/services
chkconfig vsftpd on

29. tar options for create - extract - test - and verbose
ssh-copy-id root@server6.example.com
# yum
tar cxtv
system-config-firewall tui

30. Connect with VNC viewer securely
#virsh list
yum install tigervnc-server
rpm -qc httpd
vncviewer -via student@server6 localhost:2

31. tar options for file name - gzip - and bzip2
tar fzj
cp /home/test1.html /var/www/html/test1.html
#yum install [package name]
#yum

32. Disks available for partitions
Fully Qualified Domain Name
/dev
ssh-keygen
#yum grouplist

33. Persist the web server on boot
logwatch
cp /home/test1.html /var/www/html/test1.html
rhn_register
chkconfig httpd on

34. Persist FTP on boot
#ip addr show
service vncserver restart chkconfig vncserver on
chkconfig vsftpd on
/usr/share/doc/initscripts-*/sysconfig.txt

35. Restart the ntpd service
rhn_register
/dev
*.debug /var/log/debug.log service rsyslog restart
service ntpd restart

36. Get information about a package named firefox4
/etc/sysconfig/resolv.conf
#rpm -qac [package name]
yum info firefox4
vsftpd restart

37. Install the star compression tool create an archive with the star tool.
rsync /home root@server6.example.com:/tmp
# star -xattr -H=exustar -c -f=home.star /home/
yum info firefox4
#rpm -uvh [package name]

38. Where are HTML pages hosted?
/var/log/messages
/dev
/var/www/html/
cp /home/test1.html /var/www/html/test1.html

39. List VMs
#virsh list
rsync -a /home/test1.html root@server6.example.com:/var/pub
tar czvf /tmp/etc.tar.gz /etc
yum search firefox

40. Contains RPM database
# ls -l /usr/share/doc | grep httpd
insert as opposed to append
/etc/services
/var/lib/rpm

41. Remote file copy /home/test1.html to the /var/pub directory on server6 while preserving metadata
# ls -l /usr/share/doc | grep httpd
yum provides
man search :/repository
rsync -a /home/test1.html root@server6.example.com:/var/pub

42. Query all documentation with RPM
#rpm -qad [package name]
system-config-firewall tui
#iptables -I INPUT -p tcp --dport 21 -j Accept
tar czvf /tmp/etc.tar.gz /etc

43. Backup a home directory on desktop6 to /tmp on server6
rsync /home root@server6.example.com:/tmp
#yum info [package name]
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd
nautilus

44. Kill a VM
#virsh destroy domain-id
vsftpd restart
#yum groupinstall "group name"
rpm -qp pkg.rpm

45. Set process priority with renice - -20 highest - 20 lowest - 0 is default
# renice -10 proc-id
rpm -qp pkg.rpm
# cat /var/log/messages | grep [Ff]ailed | less
chkconfig vsftpd on

46. File containing information to create rpm package - RPM packages contain these files: libraries or application - any documentation - any configuration files
#rpm -qi [package name]
.spec
ip masqu
system-config-firewall tui

47. Append add to the end of the IPtables rules. insert will put rule above the deny all rule.
# grep -i
$ tar xzvf home.tar.gz /home
insert as opposed to append
yum install tigervnc-server

48. Basic add rule for iptables not persistant unless saved with #/etc/init.d/iptables save
# vi /etc/inittab change - id:3:initdefault:
#iptables -I INPUT -p tcp --dport 21 -j Accept
rhn_register
$ grep -v ^# /etc/nsswitch.conf

49. Send all debug level messages to /var/log/debug.log
yum info firefox4
#yum
updating the kernel
*.debug /var/log/debug.log service rsyslog restart

50. Stores IPtables rules (filter) chains - input forward output are persistant
system-config-date
rpm localinstall pkg.rpm --nogpgcheck
/etc/sysconfig/iptables
vncviewer -via student@server6 localhost:2