Test your basic knowledge |

RHCE: Red Hat Certified Engineer

Subjects : certifications, it-skills, rhce

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. How to start the vsftp service?
rpm -V
comps.xml (comps.xml file in the /usr/share/comps/i386 directory - -- or Web Server package group - as documented on the first installation CD in the Server/repodatata/comps-rhel5-server-core.xml file)
/etc/init.d/vsftpd start
/ (root) - /boot and linux swap

2. How to install apache?
DocumentRoot
Yes
lvextend -L4G /dev/rootvg/tmplv
yum install httpd

3. How to install vsftpd?
yum install vsftpd
DocumentRoot
/etc/init.d/vsftpd start
iptables -F

4. To install both mod_ssl and squid packages
setup
yum install mod_ssl squid
showmount -e
chcon -R -t httpd_sys_content_t /home/michael/public_html

5. I ran 'e2label /dev/sda' and got 'bad magic number' Why?
filesystem type is not ext2 or ext3
yum clean all
/var/ftp/pub
CustomLog

6. How do you restart the apache web server?
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
parted /dev/hda print
/etc/init.d/httpd restart
/ (root) - /boot and linux swap

7. This line placed in /etc/hosts.deny sends a customized error message for Telnet users on the crack.org domain saying sorry [insert client info] - access denied
/ (root) - /boot and linux swap
rpm -V
--import file
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)

8. Create a usb boot disk if the usb stick is /dev/sdc and the file you need is in your present directory
dd if=./diskboot.img of=/dev/sdc
yum clean all
resize2fs
service vsftpd status

9. For linux ext2 there is an easier way than using resize2fs. LVM 1 ships with a utility called __________ which does the lvextend and resize2fs for you (it can also do file system shrinking)
DocumentRoot
iptables -F
e2fsadm
ls -Z

10. To list under which run levels the web service will start
iptables
chkconfig --list httpd
iptables -F
First boot process

11. Logical partitions on a hard drive always start with number ____; on the first PATA/IDE hard drive on a PC - that is hda____.
iptables -F
grep '[.*]' server1.repo
5
-l

12. httpd ___ to update the httpd package - automatically answering yes to all the questions
yum -y update
chkconfig --list httpd
chcon -R -t httpd_sys_content_t /home/michael/public_html
AllowOverride

13. What is the first post installation step?
port 21
First boot process
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
/media/repodata

14. Perform a simple check of the file system. minor-num is x.
dd if=./diskboot.img of=/dev/sdc
rpm -V zip
parted; check x
var/ftp/pub

15. rpm ____ to install kernel updates
yum install mod_ssl squid
-i (do not use -U or -F!)
chcon -R -t httpd_sys_content_t /home/michael/public_html
var/ftp/pub

16. Where is the main apache data directory?
var/www/html
chkconfig vsftpd on
/etc/httpd/conf/
chkconfig --list httpd

17. When an rpm install fails for xxxx because the same version is already apparently installed - run ____ to just install it all again
/etc/lvmtab
/etc/init.d/vsftpd start
rpm -ivh --replacepkgs xxxx*
(rpm -q)p file (for rpmfile name)

18. This line placed in /etc/hosts.deny will mean that only computer allowed to access our Telnet server has an IP address of 192.168.1.10
port 21
ServerName
comps.xml (comps.xml file in the /usr/share/comps/i386 directory - -- or Web Server package group - as documented on the first installation CD in the Server/repodatata/comps-rhel5-server-core.xml file)
telnetd : ALL EXCEPT 192.168.1.10

19. The simplest way to install Apache
e2fsadm
yum install httpd
rpm -V
lvextend -L4G /dev/rootvg/tmplv

20. httpd ___ shows me what config files were installed when the httpd package was installed
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
/etc/init.d/vsftpd start
comps.xml (comps.xml file in the /usr/share/comps/i386 directory - -- or Web Server package group - as documented on the first installation CD in the Server/repodatata/comps-rhel5-server-core.xml file)
rpm -qc

21. Are SELinux and iptables-based firewalls are enabled by default?
Yes
/var/ftp/pub
nfs
dd if=./diskboot.img of=/dev/sdc

22. The rpm ____ option installs the package - if it isn't already installed.
LVM
yum install httpd
-i
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128

23. What is the standard directory for file sharing with vsFTP?
/etc/lvmtab
yum install mod_ssl squid
rpm -qc
var/ftp/pub

24. How to start the vsftp service automatically on boot?
chkconfig vsftpd on
/etc/httpd/conf/
chmod 701
ServerTokens

25. Virtual Host Configuration: Specifies an IP address for multiple virtual hosts.
rpm -qc
NameVirtualHost
yum install vsftpd
/var/ftp/pub

26. ___ http://devmon.dev.schwab.com/index.html will make a local copy of the index.html file from devmon
ls -Z
wget (http://devmon.dev.schwab.com/index.html)
yum install vsftpd
grep '[.*]' server1.repo

27. pam ___ will tell me if any files in the pam package have changed since it was first installed
rpm -V
parted; mklabel k
setsebool -P squid_connect_any 1
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/

28. Virtual Host Configuration: Creates an error log; the location is based on the DocumentRoot.
ErrorLog
rpm -V zip
service vsftpd status
comps.xml (comps.xml file in the /usr/share/comps/i386 directory - -- or Web Server package group - as documented on the first installation CD in the Server/repodatata/comps-rhel5-server-core.xml file)

29. OS from http.conf - this line looks deceptively simple; it limits what readers see about your Web server when you browse to a nonexistent page. If you don't use this command - outsiders can see whether you've loaded modules such as Perl - Python - an
ServerTokens
(rpm -q)p file (for rpmfile name)
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
chkconfig httpd on

30. Virtual Host Configuration: Names the URL for the virtual host.
chkconfig --list httpd
/etc/init.d/httpd start
ServerName
chcon -R -t httpd_sys_content_t /home/michael/public_html

31. How to make sure apache starts automatically on next reboot?
var/ftp/pub
rpm -V
/ (root) - /boot and linux swap
chkconfig httpd on

32. Where is the vsftp pub dir?
/etc/vsftpd
/var/ftp/pub
rpm -V
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)

33. How to start apache service?
(rpm -q)p file (for rpmfile name)
wget (http://devmon.dev.schwab.com/index.html)
resize2fs
/etc/init.d/httpd start

34. It's much more difficult and much more time-consuming to revise partitions with utilities such as ____ or parted after RHEL is installed.
rpm -V
yum -y update
ssh
fdisk

35. What service is allowed through the default firewall?
ssh
resize2fs /dev/myvg/homevol
/etc/lvmtab
rpm -qc

36. I just ran rpm -ivh zip-2.3-8.i386.rpm .. whooops - now I don't want this on my system so to get it off via rpm I type ____
filesystem type is not ext2 or ext3
chkconfig vsftpd on
rpm -e zip
parted; check x

37. rpm ____ verifies the installed zip rpm against the rpm database
/etc/httpd/conf/
rpm -V zip
rpm -qc
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)

38. Create the basic cache directories in /var/spool/squid with the following command:
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
squid -z
rpm -V zip
iptables -F

39. How to disable the firewall on the current system?
setsebool -P htttpd.enable.homedirs 1
lvdisplay -D /dev/rootvg/tmplv
iptables -F
iptables -F

40. Create a disk label for the partition table called k
port 21
ls -Z
parted; mklabel k
resize2fs

41. rpm option to show me the package files
grep '[.*]' server1.repo
yum install httpd
-l
chkconfig httpd on

42. Virtual Host Configuration: Sets a root directory for the virtual host.
rpm -qc
DocumentRoot
nfs
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128

43. If you want to add an iptables command to forward TCP port 80 traffic to TCP port 3128 - you would use the following:
wget (http://devmon.dev.schwab.com/index.html)
-i
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
ServerName

44. ____ is used to modify file system parameters
squid -z
ErrorLog
NameVirtualHost
tune2fs

45. This line placed in /etc/hosts.deny denies all services except TFTP to computers in the example.org domain
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
lvextend -L4G /dev/rootvg/tmplv
/ (root) - /boot and linux swap
rpm -e zip

46. Where is vsftpd.conf?
/boot
yum install mod_ssl squid
/etc/vsftpd
/etc/init.d/httpd start

47. For http - if you implement 'UserDir public_html' - you need to also ____ /home/michael/public_html if you want /home/michael/public_html accessible
chmod 705
e2fsadm
yum install httpd
First boot process

48. If in doubt about package names - you can find them in the ...
fdisk -l
comps.xml (comps.xml file in the /usr/share/comps/i386 directory - -- or Web Server package group - as documented on the first installation CD in the Server/repodatata/comps-rhel5-server-core.xml file)
rpm -ivh --replacepkgs xxxx*
showmount -e

49. The default Red Hat Enterprise Linux firewall blocks access to an NFS server. While inelegant - the following command 'flushes -' or turns off - the standard Linux firewall from the local computer.
parted; mklabel k
iptables -F
AllowOverride
comps.xml (comps.xml file in the /usr/share/comps/i386 directory - -- or Web Server package group - as documented on the first installation CD in the Server/repodatata/comps-rhel5-server-core.xml file)

50. Tthe file that might contain: oldvg - rootvg - etc.
/etc/lvmtab
5
chkconfig vsftpd on
ServerName