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. Grep for lines that do not match (-v)
IPtables output chain
$ tar xzvf home.tar.gz /home
$ grep -v ^# /etc/nsswitch.conf
/etc/yum.repos.d/

2. fqdn
rpm -q pkg.rpm --scripts
Fully Qualified Domain Name
nautilus
#iptables -D INPUT -p tcp --dport 21 -j accpet

3. Restart ssh services
ntpdate -b instructor
tar cxtv
service sshd restart
#rpm -uvh [package name]

4. Extract a star compressed file
# star -x -f=home.star
# cat /var/log/messages | grep [Ff]ailed | less
service ntpd restart
add/remove software GUI

5. Local host file (contains hostname). Can contain local system DNS.
[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
# virsh create /etc/libvert/qemu/vm_file_name.xml
vsftpd restart
/etc/hosts

6. Remove a package with yum
/etc/ssh/sshd_config
#yum remove [package name]
tar cxtv
vncviewer -via student@server6 localhost:2

7. Repo config file
# renice -10 proc-id
$ tar xzvf home.tar.gz /home
[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
palimpsest

8. RPM package naming
name-version-release.architecture.rpm
rpm -qc httpd
yum info firefox4
service ntpd restart

9. System config firewall
tar xvzf /tmp/etc.tar.gz /etc
GUI menu system/administratrion/firewall
vncviewer -via student@server6 localhost:2
#rpm -qac [package name]

10. File containing information to create rpm package - RPM packages contain these files: libraries or application - any documentation - any configuration files
#rpm -uvh [package name]
/etc/services
#yum groupinstall "group name"
.spec

11. Install the VNC server package
yum install tigervnc-server
rpm -ql vsftpd
#iptables -L
ssh-copy-id root@server6.example.com

12. 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.)
# grep -i
tar cxtv
logwatch

13. List VMs
yum list
$ grep -v ^# /etc/nsswitch.conf
service sshd restart
#virsh list

14. Backup a home directory on desktop6 to /tmp on server6
yum search firefox
cp /home/test1.html /var/www/html/test1.html
rsync /home root@server6.example.com:/tmp
#yum

15. Sync ntp time with the instructor
/etc/sysconfig/iptables
palimpsest
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)
ntpdate -b instructor

16. Basic add rule for iptables not persistant unless saved with #/etc/init.d/iptables save
yum install tigervnc-server
cp /home/test1.html /var/www/html/test1.html
/usr/share/doc/initscripts-*/sysconfig.txt
#iptables -I INPUT -p tcp --dport 21 -j Accept

17. Start a VM
# virsh create /etc/libvert/qemu/vm_file_name.xml
name-version-release.architecture.rpm
Fully Qualified Domain Name
/etc/ssh/sshd_config

18. Restart vnc and persist on boot
#yum groupremove "group name"
service vncserver restart chkconfig vncserver on
#rpm -qi [package name]
yum install tigervnc-server

19. Restart the ntpd service
2>&1
service ntpd restart
rpm -qc httpd
/etc/yum.repos.d

20. Edit files with cat until the _EOF is found
cat >> some_file << _EOF
/etc/sysconfig/iptables
#rpm -qi [package name]
.spec

21. Kill a VM
#rpm -ivh [package name]
yum info firefox4
yum list
#virsh destroy domain-id

22. Update a package
/etc/yum.repos.d/
/etc/sysconfig/iptables
ssh-copy-id root@server6.example.com
yum update

23. List scripts that can be run after installation of pkg.rpm
rpm -q pkg.rpm --scripts
system-config-firewall tui
vncpasswd
/etc/yum.repos.d

24. Extract a gzipped tar ball in your home directory
rsync /home/test1.html root@server6.example.com:/var/pub
$ tar xzvf home.tar.gz /home
yum provides "*/sbin/sshd"
rpm -q pkg.rpm --scripts

25. Install a pkg.rpm locally
rpm localinstall pkg.rpm --nogpgcheck
# ls -l /usr/share/doc | grep httpd
system-config-date
rsync -PHR /home/test1.html root@server6.example.com:/var/pub

26. tar options for file name - gzip - and bzip2
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)
#rpm -qi [package name]
tar fzj
/etc/sysconfig/iptables

27. Display packages that match the pathname
yum provides
/etc/sysconfig/vncservers rpm -ql tigervnc-server
#yum groupremove "group name"
IPtables forward chain

28. Process packets coming out of the system
#yum install [package name]
tar cxtv
IPtables output chain
[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

29. Delete a rule from iptables
#iptables -D INPUT -p tcp --dport 21 -j accpet
logwatch
Fully Qualified Domain Name
#virsh destroy domain-id

30. Set process priority with renice - -20 highest - 20 lowest - 0 is default
#iptables -F
service sshd restart
# renice -10 proc-id
# star -x -f=home.star

31. Query configuration files with RPM
#rpm -qac [package name]
ln -s /pub /var/www/html/pub
# grep -i
$ tar czvf home.tar.gz /home

32. Start vsftp service
/var/www/html/
palimpsest
/etc/ssh/sshd_config
vsftpd restart

33. Use lftp to connect
#rpm -qad [package name]
2>&1
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd
rpm -q pkg.rpm --scripts

34. Stores filewall rules for the system.
#yum remove [package name]
chkconfig vsftpd on
#yum grouplist
/etc/sysconfig/iptables

35. Create a symbolic link to /pub on the FTP and name it pub
logwatch
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)
ln -s /pub /var/www/html/pub
#yum grouplist

36. All messages sent at info priority or higher
.spec
$ tar xzvf home.tar.gz /home
/var/log/messages
#uname -r

37. Import a public key
rpm --import [public key location]
IPtables forward chain
# vi /etc/inittab change - id:3:initdefault:
nautilus

38. File holding services - ports - protocols assoicated
# cat /var/log/messages | grep [Ff]ailed | less
/var/log/maillog
#iptables -D INPUT -p tcp --dport 21 -j accpet
/etc/services

39. Persist the web server on boot
chkconfig httpd on
/etc/sysconfig/vncservers rpm -ql tigervnc-server
/etc/hosts
# cat /var/log/messages | grep [Ff]ailed | less

40. Remote file copy /home/test1.html to the /var/pub directory on server6
rpm localinstall pkg.rpm --nogpgcheck
#rpm -qad [package name]
rsync /home/test1.html root@server6.example.com:/var/pub
/etc/ssh/sshd_config

41. Disks available for partitions
/dev
MailTo=student@server6.example.com
updating the kernel
yum install firefox4

42. Gets kernel version and release number
#uname -r
logwatch
#iptables -I INPUT -p tcp --dport 21 -j Accept
/etc/sysconfig/iptables

43. Messages related to cron log
/etc/sysconfig/network
$ tar xzvf home.tar.gz /home
rsync /home/test1.html root@server6.example.com:/var/pub
/var/log/cron

44. Remote copy /home/test1.html to the /var/pub directory on server6 with progress - preserving hard links - and using relative path names
vncpasswd
rsync -PHR /home/test1.html root@server6.example.com:/var/pub
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd
#yum groupremove "group name"

45. Append this to the /etc/rsyslog.conf to send mail to student@server6.example.com
/etc/sysconfig/vncservers rpm -ql tigervnc-server
yum remove firefox4
MailTo=student@server6.example.com
nautilus

46. Contains RPM database
2>&1
/var/lib/rpm
# virsh create /etc/libvert/qemu/vm_file_name.xml
#yum groupinstall "group name"

47. Get more information on a package availale through yum
#yum info [package name]
#yum remove [package name]
/etc/rsyslog.conf
/etc/sysconfig/iptables

48. Create a tar ball with gzip compression of the home dir
$ tar czvf home.tar.gz /home
tar czvf /tmp/etc.tar.gz /etc
#yum groupremove "group name"
#iptables -L

49. Install a package named firefox4
yum install firefox4
cp /home/test1.html /var/www/html/test1.html
#uname -r
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd

50. Install a package with yum
rpm --import [public key location]
# yum
logwatch
#yum install [package name]