Test your basic knowledge |

RHCSA Commands

Subjects : certifications, it-skills, rhcsa

Instructions:

Answer 50 questions in 15 minutes.
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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. Stores IPtables rules (filter) chains - input forward output are persistant
/etc/sysconfig/iptables
#iptables -D INPUT -p tcp --dport 21 -j accpet
#rpm -qad [package name]
nautilus

2. Delete a rule from iptables
#iptables -D INPUT -p tcp --dport 21 -j accpet
/etc/sysconfig/iptables
rsync /home/test1.html root@server6.example.com:/var/pub
#iptables -I INPUT -p tcp --dport 21 -j Accept

3. Searches for page within the #man yum
/var/log/maillog
man search :/repository
#virsh destroy domain-id
rpm -q pkg.rpm --scripts

4. Documentation about sysconfig network scripts
yum provides
/usr/share/doc/initscripts-*/sysconfig.txt
rhn_register
yum provides "*/sbin/sshd"

5. Configuration for VNC
/etc/sysconfig/vncservers rpm -ql tigervnc-server
rpm --import [public key location]
/etc/sysconfig/resolv.conf
# vi /etc/inittab change - id:3:initdefault:

6. Create a tar ball with gzip compression of the home dir
vsftpd
# cat /var/log/messages | grep [Ff]ailed | less
$ tar czvf home.tar.gz /home
GUI menu system/administratrion/firewall

7. Remote file copy /home/test1.html to the /var/pub directory on server6
#yum
chkconfig httpd on
rsync /home/test1.html root@server6.example.com:/var/pub
GUI menu system/administratrion/firewall

8. Show IP address with the IP command
/etc/yum.repos.d
rsync /home/test1.html root@server6.example.com:/var/pub
yum list
#ip addr show

9. tar options for file name - gzip - and bzip2
/etc/sysconfig/iptables
#iptables -L
tar fzj
chkconfig vsftpd on

10. Messages related to cron log
vncviewer -via student@server6 localhost:2
/var/log/cron
#rpm -qi [package name]
/etc/rsyslog.conf

11. Install a package group with yum
[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
#yum groupinstall "group name"
#iptables -I INPUT -p tcp --dport 21 -j Accept
/etc/sysconfig/iptables

12. Process packets being forwarded through the system
rpm -q pkg.rpm --scripts
IPtables forward chain
#rpm -qi [package name]
yum search firefox

13. Repos for yum
nautilus
yum provides
2>&1
/etc/yum.repos.d

14. Use lftp to connect
palimpsest
lftp student@server6 httpd configuration /etc/httpd/conf/httpd.conf rpm -ql httpd
*.debug /var/log/debug.log service rsyslog restart
/var/log/messages

15. Start a VM
#uname -r
#virsh destroy domain-id
yum info firefox4
# virsh create /etc/libvert/qemu/vm_file_name.xml

16. Enable anonymous users - disable local accounts - and disable any uploads to the FTP server
/etc/vsftpd/vsftpd.conf rpm -ql vsftpd
Fully Qualified Domain Name
IPtables input chain
service ntpd restart

17. Install the VNC server package
# grep -i
yum install tigervnc-server
chkconfig vsftpd on
.spec

18. Persist FTP on boot
/etc/services
chkconfig vsftpd on
service vncserver restart chkconfig vncserver on
#rpm -ivh [package name]

19. Edit files with cat until the _EOF is found
cat >> some_file << _EOF
ssh-keygen
$ grep -v ^# /etc/nsswitch.conf
yum list

20. Where are HTML pages hosted?
service ntpd restart
/var/www/html/
yum update
2>&1

21. Rpm upgrade package u upgrade v verbose h hash
#iptables -L
GUI menu system/administratrion/firewall
#rpm -uvh [package name]
.spec

22. Restart ssh services
/etc/ssh/sshd_config
service sshd restart
ln -s /pub /var/www/html/pub
chkconfig vsftpd on

23. Remote file copy /home/test1.html to the /var/pub directory on server6 while preserving metadata
rsync -a /home/test1.html root@server6.example.com:/var/pub
#rpm -ivh [package name]
ssh-copy-id root@server6.example.com
tar cxtv

24. File holding services - ports - protocols assoicated
$ grep -v ^# /etc/nsswitch.conf
/etc/services
tar cxtv
#iptables -D INPUT -p tcp --dport 21 -j accpet

25. Process packets coming out of the system
chkconfig httpd on
#yum remove [package name]
IPtables output chain
updating the kernel

26. Redirect errors to std out
2>&1
ssh-copy-id root@server6.example.com
rpm localinstall pkg.rpm --nogpgcheck
/var/log/secure

27. List installed and available packages
/usr/share/doc/initscripts-*/sysconfig.txt
system-config-firewall (Push the enable button and check the appropriate boxes. Check.)
yum list
yum info firefox4

28. Grep with ignoring case
tar fzj
chkconfig httpd on
# grep -i
yum remove firefox4

29. Shell config tool gropued like GUI firewall configurater.
system-config-firewall tui
#ip addr show
/etc/services
# star -xattr -H=exustar -c -f=home.star /home/

30. Create a symbolic link to /pub on the FTP and name it pub
tar xvzf /tmp/etc.tar.gz /etc
#rpm -qa | grep [package name]
updating the kernel
ln -s /pub /var/www/html/pub

31. Create a gzip-compressed backup of /etc in /tmp
#virsh list
# vi /etc/inittab change - id:3:initdefault:
tar czvf /tmp/etc.tar.gz /etc
yum update

32. Query all documentation with RPM
#yum install [package name]
$ grep -v ^# /etc/nsswitch.conf
#rpm -qad [package name]
tar xvzf /tmp/etc.tar.gz /etc

33. Register on the RHN
system-config-date
rhn_register
/var/lib/rpm
2>&1

34. handles dependencies while RPMs do not uses preconfigured repos
#yum
/usr/share/doc/initscripts-*/sysconfig.txt
#rpm -qad [package name]
rsync -a /home/test1.html root@server6.example.com:/var/pub

35. RPM package naming
/etc/ssh/sshd_config
tar cxtv
name-version-release.architecture.rpm
/var/log/messages

36. Email related messages log
/etc/vsftpd/vsftpd.conf rpm -ql vsftpd
yum list
/var/log/maillog
nautilus

37. Repo config file
palimpsest
#rpm -qa | grep [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
#virsh list

38. Search for a package with firefox in the description
cp /home/test1.html /var/www/html/test1.html
IPtables output chain
#virsh list
yum search firefox

39. GUI File Manager
#yum groupinstall "group name"
ntpdate -b instructor
yum provides
nautilus

40. Update a package
rhn_register
/var/log/maillog
yum update
#yum info [package name]

41. List scripts that can be run after installation of pkg.rpm
yum info firefox4
rpm -q pkg.rpm --scripts
/etc/sysconfig/iptables
/var/log/messages

42. File containing information to create rpm package - RPM packages contain these files: libraries or application - any documentation - any configuration files
#yum groupremove "group name"
yum install firefox4
.spec
#yum info [package name]

43. Kill a VM
GUI menu system/administratrion/firewall
ln -s /pub /var/www/html/pub
#virsh destroy domain-id
#yum grouplist

44. Acting as a router with forwarding
#ip addr show
IPtables output chain
ip masqu
rsync -a /home/test1.html root@server6.example.com:/var/pub

45. Restart vnc and persist on boot
service vncserver restart chkconfig vncserver on
rsync /home/test1.html root@server6.example.com:/var/pub
# cat /var/log/messages | grep [Ff]ailed | less
ntpdate -b instructor

46. Disk Utility Command
# grep -i
/etc/yum.repos.d/
palimpsest
# vi /etc/inittab change - id:3:initdefault:

47. Primary configuration of ssh
/etc/ssh/sshd_config
#yum grouplist
rsync -a /home/test1.html root@server6.example.com:/var/pub
.spec

48. Local file copy of /home/test1.html to /var/www/html/test1.html
[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
add/remove software GUI
cp /home/test1.html /var/www/html/test1.html
#rpm -qad [package name]

49. Install with RPM
yum provides
#ip addr show
Fully Qualified Domain Name
#rpm -ivh [package name]

50. Install the star compression tool create an archive with the star tool.
yum provides "*/sbin/sshd"
# star -xattr -H=exustar -c -f=home.star /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
tar cxtv

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Can you answer 50 questions in 15 minutes?

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RHCSA Commands

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