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. Configuration for VNC
insert as opposed to append
# star -x -f=home.star
rsync -PHR /home/test1.html root@server6.example.com:/var/pub
/etc/sysconfig/vncservers rpm -ql tigervnc-server

2. GUI File Manager
Fully Qualified Domain Name
nautilus
ln -s /pub /var/www/html/pub
/etc/sysconfig/resolv.conf

3. See the configuration files installed with a package named httpd
rpm -qp pkg.rpm
rpm -qc httpd
#rpm -qa | grep [package name]
insert as opposed to append

4. Query all documentation with RPM
/var/log/secure
nautilus
#rpm -qad [package name]
rsync -PHR /home/test1.html root@server6.example.com:/var/pub

5. Query information files with RPM
#rpm -qi [package name]
/usr/share/doc/initscripts-*/sysconfig.txt
cp /home/test1.html /var/www/html/test1.html
vncviewer -via student@server6 localhost:2

6. Flush the firewall of all rules
# grep -i
/etc/ssh/sshd_config
#iptables -F
name-version-release.architecture.rpm

7. Install a package group with yum
chkconfig httpd on
/var/www/html/
#yum groupinstall "group name"
/var/log/cron

8. Create a tar ball with gzip compression of the home dir
#yum remove [package name]
$ tar czvf home.tar.gz /home
service sshd restart
#iptables -F

9. An example of searching through system logs with interpretation.
yum install firefox4
#iptables -F
# cat /var/log/messages | grep [Ff]ailed | less
#rpm -qac [package name]

10. Search for a package with firefox in the description
/var/www/html/
#rpm -qad [package name]
/etc/sysconfig/resolv.conf
yum search firefox

11. Process packets being forwarded through the system
IPtables forward chain
tar xvzf /tmp/etc.tar.gz /etc
/usr/share/doc/initscripts-*/sysconfig.txt
rsync -PHR /home/test1.html root@server6.example.com:/var/pub

12. handles dependencies while RPMs do not uses preconfigured repos
#ip addr show
/etc/sysconfig/iptables
#yum
rsync /home/test1.html root@server6.example.com:/var/pub

13. Send all debug level messages to /var/log/debug.log
*.debug /var/log/debug.log service rsyslog restart
IPtables input chain
yum install tigervnc-server
vsftpd

14. Create a gzip-compressed backup of /etc in /tmp
rsync -PHR /home/test1.html root@server6.example.com:/var/pub
tar czvf /tmp/etc.tar.gz /etc
# virsh create /etc/libvert/qemu/vm_file_name.xml
*.debug /var/log/debug.log service rsyslog restart

15. Sync ntp time with the instructor
#ip addr show
rpm -qc httpd
ntpdate -b instructor
/etc/sysconfig/resolv.conf

16. Acting as a router with forwarding
ip masqu
rsync -PHR /home/test1.html root@server6.example.com:/var/pub
yum info firefox4
rpm -qc httpd

17. Restart ssh services
# star -x -f=home.star
service sshd restart
#yum
/etc/sysconfig/resolv.conf

18. See files installed with a package named vsftpd
rpm -ql vsftpd
/etc/ssh/sshd_config
# star -xattr -H=exustar -c -f=home.star /home/
service ntpd restart

19. List scripts that can be run after installation of pkg.rpm
#yum grouplist
rpm -q pkg.rpm --scripts
system-config-date
$ tar xzvf home.tar.gz /home

20. Where are HTML pages hosted?
rpm -qc httpd
chkconfig httpd on
/etc/yum.repos.d/
/var/www/html/

21. List VMs
#virsh list
tar czvf /tmp/etc.tar.gz /etc
#yum
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)

22. Contains RPM database
/var/lib/rpm
#yum groupremove "group name"
#virsh list
IPtables input chain

23. Shows network / global network variables: NETWORKING=yes HOSTNAME=shuttlehosti GATEWAY=192.168.88.1
/etc/sysconfig/network
#yum groupremove "group name"
yum update
/etc/hosts

24. Remote file copy /home/test1.html to the /var/pub directory on server6 while preserving metadata
#iptables -L
nautilus
rsync -a /home/test1.html root@server6.example.com:/var/pub
# star -x -f=home.star

25. Start vsftp service
#yum info [package name]
rpm -q pkg.rpm --scripts
/etc/sysconfig/iptables
vsftpd restart

26. Get more information on a package availale through yum
$ tar czvf home.tar.gz /home
#yum info [package name]
# ls -l /usr/share/doc | grep httpd
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)

27. Process packets coming into the system
IPtables input chain
MailTo=student@server6.example.com
rhn_register
# vi /etc/inittab change - id:3:initdefault:

28. Determine which package provides SSH
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)
chkconfig httpd on
yum provides "*/sbin/sshd"
updating the kernel

29. File holding services - ports - protocols assoicated
.spec
/etc/sysconfig/iptables
/etc/services
#yum groupremove "group name"

30. Local file copy of /home/test1.html to /var/www/html/test1.html
ln -s /pub /var/www/html/pub
rsync /home/test1.html root@server6.example.com:/var/pub
cp /home/test1.html /var/www/html/test1.html
/etc/sysconfig/resolv.conf

31. Restart vnc and persist on boot
vsftpd restart
/etc/sysconfig/network
#rpm -ivh [package name]
service vncserver restart chkconfig vncserver on

32. All messages sent at info priority or higher
/var/log/messages
ip masqu
#yum info [package name]
rsync -PHR /home/test1.html root@server6.example.com:/var/pub

33. fqdn
#iptables -F
Fully Qualified Domain Name
rpm -qp pkg.rpm
service sshd restart

34. Edit files with cat until the _EOF is found
/etc/sysconfig/iptables
$ grep -v ^# /etc/nsswitch.conf
cat >> some_file << _EOF
yum info firefox4

35. Import a public key
tar xvzf /tmp/etc.tar.gz /etc
chkconfig httpd on
rpm --import [public key location]
#iptables -L

36. Configuration file for system logs
nautilus
/etc/rsyslog.conf
#rpm -ivh [package name]
#yum groupinstall "group name"

37. Remove a package named firefox4
#rpm -qac [package name]
# renice -10 proc-id
yum provides
yum remove firefox4

38. Copy a public ssh key to server6
#iptables -L
rsync -PHR /home/test1.html root@server6.example.com:/var/pub
Fully Qualified Domain Name
ssh-copy-id root@server6.example.com

39. Generate SSH Keys
#yum remove [package name]
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd
yum search firefox
ssh-keygen

40. tar options for file name - gzip - and bzip2
yum install firefox4
rpm -qc httpd
tar fzj
add/remove software GUI

41. Adjust the persistent runlevel
rsync /home/test1.html root@server6.example.com:/var/pub
/etc/sysconfig/vncservers rpm -ql tigervnc-server
#virsh destroy domain-id
# vi /etc/inittab change - id:3:initdefault:

42. Set a VNC password
vncpasswd
# star -x -f=home.star
rpm -ql vsftpd
service ntpd restart

43. Create a symbolic link to /pub on the FTP and name it pub
/usr/share/doc/initscripts-*/sysconfig.txt
2>&1
ln -s /pub /var/www/html/pub
/etc/ssh/sshd_config

44. Repo config file
logwatch
rpm --import [public key location]
[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
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)

45. Primary configuration of ssh
/etc/ssh/sshd_config
#yum
/var/lib/rpm
name-version-release.architecture.rpm

46. File containing information to create rpm package - RPM packages contain these files: libraries or application - any documentation - any configuration files
# renice -10 proc-id
/etc/sysconfig/network
rhn_register
.spec

47. Remote file copy /home/test1.html to the /var/pub directory on server6
IPtables output chain
rsync /home/test1.html root@server6.example.com:/var/pub
#rpm -qa | grep [package name]
rpm localinstall pkg.rpm --nogpgcheck

48. Get information about a package named firefox4
/etc/rsyslog.conf
yum info firefox4
$ grep -v ^# /etc/nsswitch.conf
/etc/sysconfig/resolv.conf

49. Extract /tmp/etc.tar.gz to /etc
#ip addr show
rhn_register
tar xvzf /tmp/etc.tar.gz /etc
#iptables -L

50. System config firewall
rpm localinstall pkg.rpm --nogpgcheck
#yum
GUI menu system/administratrion/firewall
IPtables forward chain