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Test your basic knowledge |
RHCE: Red Hat Certified Engineer
Start Test
Study First
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. ___ http://devmon.dev.schwab.com/index.html will make a local copy of the index.html file from devmon
wget (http://devmon.dev.schwab.com/index.html)
tune2fs
rpm -ivh --replacepkgs xxxx*
lvdisplay -D /dev/rootvg/tmplv
2. Virtual Host Configuration: Specifies an IP address for multiple virtual hosts.
chkconfig --level 35 httpd on
rpm -V
NameVirtualHost
yum -y update
3. You can check the status of your share. If it's working - you should see the contents of the /etc/exports directory when you run the following command:
port 21
/etc/init.d/httpd restart
grep '[.*]' server1.repo
showmount -e
4. After you edit /etc/exports - run service ___ stop...
nfs
/etc/vsftpd
/boot
resize2fs /dev/myvg/homevol
5. You need to configure firewalls and allow SELinux access in appropriate ways. Firewalls must allow access to the standard HTTP port - 80. SELinux must be configured to 'Allow HTTPD To Read Home Directories'. Finally - the ACL must be revised accordin
yum clean all
squid -z
AllowOverride
chcon -R -t httpd_sys_content_t /home/michael/public_html
6. ____ configuration is not available via text mode RHEL installation.
LVM
wget (http://devmon.dev.schwab.com/index.html)
fdisk -l
dumpe2fs
7. rpm ____ to install kernel updates
var/ftp/pub
-i (do not use -U or -F!)
yum install httpd
chkconfig --list httpd
8. How to start the vsftp service automatically on boot?
squid -z
chkconfig vsftpd on
CustomLog
chcon -R -t httpd_sys_content_t /home/michael/public_html
9. Where is vsftpd.conf?
grep '[.*]' server1.repo
/etc/vsftpd
showmount -e
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
10. httpd ___ to update the httpd package - automatically answering yes to all the questions
yum -y update
e2fsadm
iptables -F
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
11. Virtual Host Configuration: Creates an error log; the location is based on the DocumentRoot.
ssh
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
ErrorLog
chmod 705
12. 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
chkconfig vsftpd on
-i
rpm -V
13. Run the ____ command to find the device associated with the USB key.
rpm -qc
-i
fdisk -l
iptables
14. Virtual Host Configuration: Names the URL for the virtual host.
/ (root) - /boot and linux swap
/etc/lvmtab
ServerName
/boot
15. Virtual Host Configuration: Creates an custom log; the location is based on the DocumentRoot. (from http://www.books24x7.com/book/id_18196/viewer.asp?bookid=18196&chunkid=218985502)
CustomLog
/var/ftp/pub
rpm -V
-i
16. What is the standard directory for file sharing with vsFTP?
/var/ftp/pub
yum clean all
/etc/lvmtab
var/ftp/pub
17. httpd ___ shows me what config files were installed when the httpd package was installed
setsebool -P htttpd.enable.homedirs 1
rpm -qc
rpm -Va
rpm -V
18. For http - if you implement 'UserDir public_html' - you need to also ____ /home/michael if you want /home/michael/public_html accessible
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
chmod 701
/etc/init.d/vsftpd start
/ (root) - /boot and linux swap
19. List sboth the client hostname or IP address and mounted directory in host:dir format. This info should not be considered reliable.
showmount -a
chmod 701
ServerName
iptables -F
20. Virtual Host Configuration: Sets a root directory for the virtual host.
chcon -R -t httpd_sys_content_t /home/michael/public_html
/media/repodata
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
DocumentRoot
21. If you want to add an iptables command to forward TCP port 80 traffic to TCP port 3128 - you would use the following:
--import file
/ (root) - /boot and linux swap
tune2fs
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
22. I ran 'e2label /dev/sda' and got 'bad magic number' Why?
lvdisplay -D /dev/rootvg/tmplv
CustomLog
/etc/vsftpd
filesystem type is not ext2 or ext3
23. 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
grep '[.*]' server1.repo
fdisk
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
setsebool -P htttpd.enable.homedirs 1
24. ____ prints superblock and block group information.
dumpe2fs
-i
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
ServerTokens
25. To select a different device without having to restart parted - use the ____ command . Then - you can view its partition table or configure it.
yum install mod_ssl squid
select (followed by the device name such as /dev/hdb)
iptables
htpasswd -c /etc/httpd/webpass e
26. If you configure other directories for Web services - you'll need to change their ACL settings. For example - if you create and then use the /www directory - run the following commands:
dd if=./diskboot.img of=/dev/sdc
-l
rpm -Va
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
27. When you configure Squid on your system - you need to allow access through appropriate ports and SELinux settings. The simplest approach with respect to Squid configuration assumes that all clients use the default Squid port 3128 - using TCP - where
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
tune2fs
fdisk -l
iptables
28. Virtual Host Configuration: Assigns an e-mail address for the specified virtual host.
setup
ServerAdmin
parted /dev/hda print
port 21
29. For SELinux - you'll at least want to use the Security Level Configuration tool to activate the Allow Squid Daemon To Connect To The Network option - also known as the squid_connect_any boolean. Alternatively - you can activate this boolean with the
-K
AllowOverride
pirut
setsebool -P squid_connect_any 1
30. ______ will show me volume info including vg - size - etc of /dev/rootvg/tmplv
e2fsadm
grep '[.*]' server1.repo
fdisk -l
lvdisplay -D /dev/rootvg/tmplv
31. I just finished editing my /etc/yum.repos.d/*repo file and want yum to use the new info - so I run ____
-i (do not use -U or -F!)
yum clean all
filesystem type is not ext2 or ext3
/boot
32. The RPM database also maintains an MD5 checksum of each file. With the checksum - you can use the ____ package command to determine whether any file from that RPM package has changed.
iptables
var/www/html
yum clean all
rpm -V
33. How to start apache service?
showmount -e
/etc/init.d/httpd start
chcon -R -t httpd_sys_content_t /home/michael/public_html
NameVirtualHost
34. 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.
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)
chkconfig --level 35 httpd on
iptables -F
rpm -V
35. How to start the vsftp service?
-i
/etc/init.d/vsftpd start
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
/ (root) - /boot and linux swap
36. To install both mod_ssl and squid packages
yum install mod_ssl squid
grep '[.*]' server1.repo
dumpe2fs
-i
37. 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
var/ftp/pub
ServerTokens
yum clean all
fdisk -l
38. Where is the vsftp pub dir?
yum install vsftpd
-K
setsebool -P squid_connect_any 1
/var/ftp/pub
39. How to make sure apache starts automatically on next reboot?
yum install mod_ssl squid
rpm -Va
chkconfig httpd on
/etc/squid/
40. Where is the config dir for vsftpd?
/etc/vsftpd
chmod 701
/boot
telnetd : ALL EXCEPT 192.168.1.10
41. In httpd.conf - '____ None' disables any .htaccess files. Otherwise - .htaccess can allow others to administer your server - starting from the DocumentRoot directory. If .htaccess is in a subdirectory - such as /var/www/html/data/ - the additional di
fdisk
AllowOverride
/var/ftp/pub
iptables -F
42. Create a usb boot disk if the usb stick is /dev/sdc and the file you need is in your present directory
parted /dev/hda print
dd if=./diskboot.img of=/dev/sdc
rpm -Va
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
43. The simplest way to install Apache
nfs
ls -Z
lvextend -L4G /dev/rootvg/tmplv
yum install httpd
44. To check status of ftp daemon
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
service vsftpd status
/etc/vsftpd
var/ftp/pub
45. How to disable the firewall on the current system?
iptables -F
lvdisplay -D /dev/rootvg/tmplv
parted; check x
chcon -R -t httpd_sys_content_t /home/michael/public_html
46. ____ is used for creating ext2 and ext3 file systems
iptables
iptables -F
mke2fs
parted; check x
47. Are SELinux and iptables-based firewalls are enabled by default?
Yes
rpm -e zip
--import file
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
48. How do you restart the apache web server?
rpm -ivh --replacepkgs xxxx*
yum clean all
select (followed by the device name such as /dev/hdb)
/etc/init.d/httpd restart
49. What is the first post installation step?
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
nfs
lvdisplay -D /dev/rootvg/tmplv
First boot process
50. rpm ____ verifies the installed zip rpm against the rpm database
ls -Z
chkconfig vsftpd on
LVM
rpm -V zip