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. Restart the ntpd service
#iptables -D INPUT -p tcp --dport 21 -j accpet
rsync /home root@server6.example.com:/tmp
service ntpd restart
tar fzj

2. Authentication related messages log
MailTo=student@server6.example.com
chkconfig vsftpd on
ln -s /pub /var/www/html/pub
/var/log/secure

3. List VMs
/var/log/secure
yum install tigervnc-server
# star -x -f=home.star
#virsh list

4. Restart vnc and persist on boot
/dev
service vncserver restart chkconfig vncserver on
#rpm -ivh [package name]
# yum

5. tar options for create - extract - test - and verbose
tar cxtv
# yum
$ tar czvf home.tar.gz /home
/etc/yum.repos.d

6. Import a public key
rpm --import [public key location]
man search :/repository
#iptables -I INPUT -p tcp --dport 21 -j Accept
updating the kernel

7. Remote file copy /home/test1.html to the /var/pub directory on server6 while preserving metadata
IPtables output chain
#rpm -qad [package name]
insert as opposed to append
rsync -a /home/test1.html root@server6.example.com:/var/pub

8. Edit files with cat until the _EOF is found
cat >> some_file << _EOF
/etc/yum.repos.d
#yum install [package name]
*.debug /var/log/debug.log service rsyslog restart

9. Kill a VM
ln -s /pub /var/www/html/pub
yum install firefox4
.spec
#virsh destroy domain-id

10. Disk Utility Command
palimpsest
man search :/repository
updating the kernel
logwatch

11. See files installed with a package named vsftpd
ln -s /pub /var/www/html/pub
#yum install [package name]
rpm -ql vsftpd
#yum groupremove "group name"

12. File holding services - ports - protocols assoicated
service vncserver restart chkconfig vncserver on
$ tar czvf home.tar.gz /home
MailTo=student@server6.example.com
/etc/services

13. Local file copy of /home/test1.html to /var/www/html/test1.html
cp /home/test1.html /var/www/html/test1.html
rpm localinstall pkg.rpm --nogpgcheck
/var/lib/rpm
chkconfig httpd on

14. Generate SSH Keys
ssh-keygen
/etc/yum.repos.d
# grep -i
vsftpd restart

15. Start vsftp service
vsftpd restart
/etc/sysconfig/network
# renice -10 proc-id
vncviewer -via student@server6 localhost:2

16. Enable anonymous users - disable local accounts - and disable any uploads to the FTP server
#virsh destroy domain-id
Fully Qualified Domain Name
#uname -r
/etc/vsftpd/vsftpd.conf rpm -ql vsftpd

17. Register on the RHN
tar czvf /tmp/etc.tar.gz /etc
/var/log/cron
# renice -10 proc-id
rhn_register

18. Process packets coming out of the system
IPtables output chain
*.debug /var/log/debug.log service rsyslog restart
#iptables -I INPUT -p tcp --dport 21 -j Accept
ip masqu

19. Install a package group with yum
rpm -qc httpd
#yum groupinstall "group name"
service sshd restart
yum info firefox4

20. Extract a star compressed file
system-config-firewall tui
# star -x -f=home.star
/var/log/cron
#iptables -D INPUT -p tcp --dport 21 -j accpet

21. Shows network / global network variables: NETWORKING=yes HOSTNAME=shuttlehosti GATEWAY=192.168.88.1
# vi /etc/inittab change - id:3:initdefault:
/etc/sysconfig/network
/etc/rsyslog.conf
.spec

22. Adjust the persistent runlevel
#rpm -qac [package name]
ip masqu
# vi /etc/inittab change - id:3:initdefault:
/var/log/cron

23. Append this to the /etc/rsyslog.conf to send mail to student@server6.example.com
/etc/vsftpd/vsftpd.conf rpm -ql vsftpd
yum provides "*/sbin/sshd"
MailTo=student@server6.example.com
tar fzj

24. Should be done with yum and install as opposed to update if done with RPM option "i" should be used and not "u"
vncviewer -via student@server6 localhost:2
updating the kernel
chkconfig httpd on
$ tar xzvf home.tar.gz /home

25. Set process priority with renice - -20 highest - 20 lowest - 0 is default
/var/log/messages
# renice -10 proc-id
2>&1
rsync -PHR /home/test1.html root@server6.example.com:/var/pub

26. Set a VNC password
GUI menu system/administratrion/firewall
/etc/sysconfig/iptables
/etc/yum.repos.d
vncpasswd

27. handles dependencies while RPMs do not uses preconfigured repos
rsync -PHR /home/test1.html root@server6.example.com:/var/pub
tar xvzf /tmp/etc.tar.gz /etc
yum list
#yum

28. Search for a package with firefox in the description
yum search firefox
system-config-firewall tui
# star -x -f=home.star
#yum install [package name]

29. Persist FTP on boot
chkconfig vsftpd on
palimpsest
/dev
cp /home/test1.html /var/www/html/test1.html

30. Messages related to cron log
/var/log/cron
yum list
#iptables -D INPUT -p tcp --dport 21 -j accpet
# yum

31. Basic add rule for iptables not persistant unless saved with #/etc/init.d/iptables save
logwatch
rpm -qc httpd
#iptables -I INPUT -p tcp --dport 21 -j Accept
service vncserver restart chkconfig vncserver on

32. Install a package named firefox4
service sshd restart
yum install firefox4
yum install tigervnc-server
tar czvf /tmp/etc.tar.gz /etc

33. Get more information on a package availale through yum
#ip addr show
IPtables forward chain
chkconfig httpd on
#yum info [package name]

34. Grep with ignoring case
vncviewer -via student@server6 localhost:2
# grep -i
tar cxtv
$ tar czvf home.tar.gz /home

35. original DNS config file - still used
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)
ntpdate -b instructor
/dev
/etc/sysconfig/resolv.conf

36. RPM package naming
rpm --import [public key location]
name-version-release.architecture.rpm
/var/www/html/
#virsh destroy domain-id

37. Shell config tool gropued like GUI firewall configurater.
system-config-firewall tui
#yum install [package name]
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)
/var/lib/rpm

38. Start GUI for Firewall
#rpm -qi [package name]
ip masqu
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)
/var/log/messages

39. List scripts that can be run after installation of pkg.rpm
rpm -q pkg.rpm --scripts
IPtables forward chain
#rpm -qac [package name]
#yum info [package name]

40. List iptables
vsftpd restart
#iptables -L
#ip addr show
$ tar xzvf home.tar.gz /home

41. Query configuration files with RPM
#iptables -D INPUT -p tcp --dport 21 -j accpet
#rpm -qac [package name]
*.debug /var/log/debug.log service rsyslog restart
# star -xattr -H=exustar -c -f=home.star /home/

42. Gets kernel version and release number
/etc/sysconfig/resolv.conf
rsync -a /home/test1.html root@server6.example.com:/var/pub
#uname -r
yum install firefox4

43. Program to analyze standard log files and send a summary email to root
# vi /etc/inittab change - id:3:initdefault:
/var/log/cron
IPtables input chain
logwatch

44. Where are HTML pages hosted?
/etc/sysconfig/resolv.conf
/var/www/html/
/dev
#yum remove [package name]

45. Search for a package within all packages
vsftpd
#rpm -qac [package name]
# star -xattr -H=exustar -c -f=home.star /home/
#rpm -qa | grep [package name]

46. FTP package used in RHEL 6
/etc/sysconfig/iptables
/usr/share/doc/initscripts-*/sysconfig.txt
rpm -qp pkg.rpm
vsftpd

47. Query information files with RPM
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd
man search :/repository
#yum remove [package name]
#rpm -qi [package name]

48. Location of repo's
/etc/yum.repos.d/
rsync -a /home/test1.html root@server6.example.com:/var/pub
chkconfig vsftpd on
IPtables input chain

49. Primary configuration of ssh
tar cxtv
vsftpd
/etc/ssh/sshd_config
/etc/yum.repos.d

50. Install with RPM
system-config-firewall tui
#rpm -ivh [package name]
$ tar xzvf home.tar.gz /home
#iptables -L