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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. Apache supports security by specifying active ports through the Listen and ____ directives.
NameVirtualHost
rpm -V zip
First boot process
/etc/init.d/httpd start
2. The rpm ____ option installs the package - if it isn't already installed.
rpm -ivh --replacepkgs xxxx*
/etc/init.d/vsftpd start
/boot
-i
3. Are SELinux and iptables-based firewalls are enabled by default?
Yes
showmount -e
telnetd : ALL EXCEPT 192.168.1.10
/etc/vsftpd
4. If you want to add an iptables command to forward TCP port 80 traffic to TCP port 3128 - you would use the following:
/media/repodata
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
pirut
elinks
5. SELinux must be configured to Allow HTTPD To Read Home Directories. (Alternatively - activate the httpd_enable_homedirs boolean with the __ command.)
setsebool -P htttpd.enable.homedirs 1
chcon -R -t httpd_sys_content_t /home/michael/public_html
rpm -qc
/etc/vsftpd
6. If in doubt about package names - you can find them in the ...
ErrorLog
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/httpd restart
(rpm -q)p file (for rpmfile name)
7. ____ is used for creating ext2 and ext3 file systems
ServerAdmin
mke2fs
tune2fs
showmount -a
8. Virtual Host Configuration: Names the URL for the virtual host.
showmount -e
chmod 701
resize2fs
ServerName
9. ___ http://devmon.dev.schwab.com/index.html will make a local copy of the index.html file from devmon
pirut
wget (http://devmon.dev.schwab.com/index.html)
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
Yes
10. 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
mke2fs
iptables
nfs
Yes
11. If you want to create a database file named webpass in the /etc/httpd directory - for user 'e' - you'd start with the following command:
iptables -F
htpasswd -c /etc/httpd/webpass e
chkconfig httpd on
yum install httpd
12. After extending file system 'homevol' - unmount it and then run _____ to make the filesystem size match the new larger volume.
resize2fs /dev/myvg/homevol
/etc/httpd/conf/
dd if=./diskboot.img of=/dev/sdc
/etc/init.d/httpd restart
13. To list under which run levels the web service will start
e2fsadm
chkconfig --list httpd
yum -y update
DocumentRoot
14. If rhel6 is in the /media directory - where is the XML file on that DVD with a database of packages and package groups?
/etc/init.d/httpd restart
/etc/vsftpd
/media/repodata
iptables
15. To install both mod_ssl and squid packages
yum install httpd
chkconfig --list httpd
yum install mod_ssl squid
showmount -a
16. Use grep to count how many repositories have been configured in the file server1.repo
Warning
: Invalid argument supplied for foreach() in
/var/www/html/basicversity.com/show_quiz.php
on line
183
17. Create a usb boot disk if the usb stick is /dev/sdc and the file you need is in your present directory
/etc/lvmtab
chkconfig --list httpd
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
dd if=./diskboot.img of=/dev/sdc
18. What service is allowed through the default firewall?
LVM
ssh
AllowOverride
rpm -V zip
19. To update a kernel - 1) ____ 2) boot new kernel to test 3) revert to old kernel if problems 4) yum remove kernel-oldversion if no problems
parted /dev/hda print
yum clean all
chkconfig httpd on
yum update kernel
20. _____ will change the size of /dev/rootvg/tmplv to 4 gig
lvextend -L4G /dev/rootvg/tmplv
/ (root) - /boot and linux swap
chkconfig vsftpd on
rpm -ivh --replacepkgs xxxx*
21. To verify integrity of an rpm package - ____/rpm-gpg/RPM-GPG-KEY-redhat-release
fdisk
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
service vsftpd status
rpm -ivh --replacepkgs xxxx*
22. ____ prints superblock and block group information.
NameVirtualHost
dumpe2fs
rpm -qc
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)
23. 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:
showmount -e
nfs
var/www/html
squid -z
24. rpm options include rpm -q [package name] or rpm -qf [path/file] or rmp -q____
elinks
yum install mod_ssl squid
yum install httpd
(rpm -q)p file (for rpmfile name)
25. When an rpm install fails for xxxx because the same version is already apparently installed - run ____ to just install it all again
ServerAdmin
rpm -ivh --replacepkgs xxxx*
ServerTokens
nfs
26. Tthe file that might contain: oldvg - rootvg - etc.
setup
htpasswd -c /etc/httpd/webpass e
grep '[.*]' server1.repo
/etc/lvmtab
27. Where to find the main apache config file?
chmod 705
/etc/httpd/conf/
parted; check x
rpm -ivh --replacepkgs xxxx*
28. You can use the ____ tool after installation to add any package groups that you missed.
rpm -ivh --replacepkgs xxxx*
system-config-firewall
fdisk -l
pirut
29. How to start the vsftp service?
iptables
AllowOverride
port 21
/etc/init.d/vsftpd start
30. How to make sure apache starts automatically on next reboot?
-i
-i (do not use -U or -F!)
chkconfig httpd on
var/www/html
31. rpm ____ to install kernel updates
parted; check x
wget (http://devmon.dev.schwab.com/index.html)
-i (do not use -U or -F!)
dd if=./diskboot.img of=/dev/sdc
32. To check status of ftp daemon
service vsftpd status
yum install httpd
AllowOverride
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
33. 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
NameVirtualHost
mke2fs
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
AllowOverride
34. How to start apache service?
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
/etc/init.d/httpd start
/boot
/etc/lvmtab
35. 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.
iptables -F
/etc/squid/
/var/ftp/pub
showmount -a
36. The most straightforward way to make sure Apache starts in bootlevels 3 and 5
chkconfig --level 35 httpd on
squid -z
chkconfig httpd on
First boot process
37. ____ can expand and shrink ext2 and ext3 file systems
e2fsadm
resize2fs
/etc/httpd/conf/
dumpe2fs
38. Perform a simple check of the file system. minor-num is x.
parted; check x
parted; mklabel k
squid -z
AllowOverride
39. Run the ____ command to find the device associated with the USB key.
/etc/vsftpd
yum install mod_ssl squid
ServerTokens
fdisk -l
40. 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
/etc/vsftpd
showmount -a
ServerTokens
-K
41. 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:
/etc/init.d/httpd start
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
CustomLog
/etc/vsftpd
42. '____ /var/www' will tell you the ACL settings of /var/www
-i (do not use -U or -F!)
iptables -F
ls -Z
tune2fs
43. httpd ___ to update the httpd package - automatically answering yes to all the questions
/media/repodata
chmod 705
yum -y update
ssh
44. To select a different device without having to restart parted - use the ____ command . Then - you can view its partition table or configure it.
select (followed by the device name such as /dev/hdb)
chmod 701
--import file
rpm -ivh --replacepkgs xxxx*
45. rpm ____ verifies all installed rpms against the rpm database
ServerAdmin
showmount -e
select (followed by the device name such as /dev/hdb)
rpm -Va
46. As you may not have access to the GUI during the Red Hat exams - you need to know how to use text-based browsers. The standard is ____
lvdisplay -D /dev/rootvg/tmplv
elinks
ServerName
var/ftp/pub
47. 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
lvdisplay -D /dev/rootvg/tmplv
telnetd : ALL EXCEPT 192.168.1.10
chkconfig --list httpd
showmount -a
48. Use parted to display disk geometry for /dev/hda and end up in shell
nfs
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
parted /dev/hda print
chcon -R -t httpd_sys_content_t /home/michael/public_html
49. How to install apache?
setsebool -P htttpd.enable.homedirs 1
/etc/lvmtab
yum install httpd
yum install httpd
50. what utility can be used to open port 80?
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
filesystem type is not ext2 or ext3
NameVirtualHost
system-config-firewall