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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. ____ is used for creating ext2 and ext3 file systems
mke2fs
ls -Z
/etc/squid/
squid -z
2. To install both mod_ssl and squid packages
/etc/init.d/vsftpd start
yum install httpd
yum install mod_ssl squid
parted; check x
3. 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)
fdisk -l
filesystem type is not ext2 or ext3
e2fsadm
ssh
4. 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 ____
lvdisplay -D /dev/rootvg/tmplv
yum install httpd
rpm -e zip
port 21
5. If you want to add an iptables command to forward TCP port 80 traffic to TCP port 3128 - you would use the following:
First boot process
ls -Z
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
chkconfig httpd on
6. 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
7. _____ will change the size of /dev/rootvg/tmplv to 4 gig
e2fsadm
pirut
lvextend -L4G /dev/rootvg/tmplv
iptables -F
8. What service is allowed through the default firewall?
yum install httpd
ssh
chmod 701
port 21
9. What command starts the same menu as the text-mode First Boot process?
dd if=./diskboot.img of=/dev/sdc
setup
system-config-firewall
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
10. How to start apache service?
service vsftpd status
tune2fs
/boot
/etc/init.d/httpd start
11. To verify integrity of an rpm package - ____/rpm-gpg/RPM-GPG-KEY-redhat-release
iptables -F
setsebool -P squid_connect_any 1
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
/etc/init.d/httpd start
12. For http - if you implement 'UserDir public_html' - you need to also ____ /home/michael if you want /home/michael/public_html accessible
var/ftp/pub
ServerTokens
chmod 701
setsebool -P squid_connect_any 1
13. What is the standard directory for file sharing with vsFTP?
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
var/ftp/pub
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
/etc/vsftpd
14. ____ configuration is not available via text mode RHEL installation.
htpasswd -c /etc/httpd/webpass e
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
LVM
ErrorLog
15. If in doubt about package names - you can find them in the ...
ServerTokens
setsebool -P squid_connect_any 1
rpm -e zip
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)
16. The most straightforward way to make sure Apache starts in bootlevels 3 and 5
-i
chkconfig --level 35 httpd on
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)
-i (do not use -U or -F!)
17. ______ will show me volume info including vg - size - etc of /dev/rootvg/tmplv
CustomLog
wget (http://devmon.dev.schwab.com/index.html)
lvdisplay -D /dev/rootvg/tmplv
ssh
18. How to install apache?
ssh
yum install httpd
--import file
filesystem type is not ext2 or ext3
19. rpm options include rpm -q [package name] or rpm -qf [path/file] or rmp -q____
chkconfig httpd on
DocumentRoot
--import file
(rpm -q)p file (for rpmfile name)
20. 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
wget (http://devmon.dev.schwab.com/index.html)
chcon -R -t httpd_sys_content_t /home/michael/public_html
telnetd : ALL EXCEPT 192.168.1.10
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
21. How to make sure apache starts automatically on next reboot?
chkconfig httpd on
/etc/vsftpd
yum install mod_ssl squid
rpm -V
22. Virtual Host Configuration: Specifies an IP address for multiple virtual hosts.
nfs
DocumentRoot
NameVirtualHost
First boot process
23. rpm ____ verifies the installed zip rpm against the rpm database
rpm -V zip
--import file
elinks
tune2fs
24. Virtual Host Configuration: Assigns an e-mail address for the specified virtual host.
ServerAdmin
yum update kernel
yum install mod_ssl squid
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
25. How to start the vsftp service automatically on boot?
chcon -R -t httpd_sys_content_t /home/michael/public_html
dumpe2fs
chkconfig vsftpd on
CustomLog
26. To list under which run levels the web service will start
nfs
fdisk
chkconfig --list httpd
iptables -F
27. I just finished editing my /etc/yum.repos.d/*repo file and want yum to use the new info - so I run ____
service vsftpd status
rpm -qc
yum clean all
NameVirtualHost
28. How to disable the firewall on the current system?
var/www/html
iptables -F
chkconfig vsftpd on
lvdisplay -D /dev/rootvg/tmplv
29. Apache supports security by specifying active ports through the Listen and ____ directives.
NameVirtualHost
telnetd : ALL EXCEPT 192.168.1.10
yum install vsftpd
/etc/vsftpd
30. rpm ____ [name of package] to verify the package - once you have manually imported the key
iptables
-K
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
/etc/vsftpd
31. I ran 'e2label /dev/sda' and got 'bad magic number' Why?
yum install httpd
fdisk -l
filesystem type is not ext2 or ext3
iptables -F
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.
dumpe2fs
rpm -e zip
rpm -V
parted; mklabel k
33. Create a disk label for the partition table called k
parted; mklabel k
elinks
NameVirtualHost
fdisk -l
34. 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
/etc/httpd/conf/
fdisk -l
telnetd : ALL EXCEPT 192.168.1.10
fdisk -l
35. Where is the main apache data directory?
var/www/html
rpm -V
rpm -V
/etc/httpd/conf/
36. How do you restart the apache web server?
rpm -V
rpm -Va
/etc/init.d/httpd restart
select (followed by the device name such as /dev/hdb)
37. Perform a simple check of the file system. minor-num is x.
pirut
rpm -e zip
/etc/vsftpd
parted; check x
38. 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)
(rpm -q)p file (for rpmfile name)
yum install httpd
wget (http://devmon.dev.schwab.com/index.html)
39. output from ____ is: Disk /dev/cciss/c0d0: 36.4 GB - 36414750720 bytes... plus listing of partitions - for each physical drive
fdisk -l
DocumentRoot
resize2fs
NameVirtualHost
40. 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
iptables -F
/etc/init.d/httpd start
/etc/vsftpd
yum update kernel
41. 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
iptables
(rpm -q)p file (for rpmfile name)
chkconfig --list httpd
chcon -R -t httpd_sys_content_t /home/michael/public_html
42. rpm ____ to import the rpm key for integrity checking
--import file
yum update kernel
/etc/httpd/conf/
tune2fs
43. 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
LVM
/ (root) - /boot and linux swap
AllowOverride
dumpe2fs
44. To check status of ftp daemon
yum install httpd
/etc/squid/
rpm -qc
service vsftpd status
45. 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
setsebool -P htttpd.enable.homedirs 1
dumpe2fs
setsebool -P squid_connect_any 1
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)
46. 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
elinks
select (followed by the device name such as /dev/hdb)
ServerTokens
var/ftp/pub
47. Where is the config dir for vsftpd?
nfs
/etc/vsftpd
parted /dev/hda print
chmod 701
48. Virtual Host Configuration: Names the URL for the virtual host.
parted; mklabel k
fdisk
/etc/init.d/vsftpd start
ServerName
49. Virtual Host Configuration: Creates an error log; the location is based on the DocumentRoot.
var/ftp/pub
chmod 701
ErrorLog
First boot process
50. Logical partitions on a hard drive always start with number ____; on the first PATA/IDE hard drive on a PC - that is hda____.
wget (http://devmon.dev.schwab.com/index.html)
resize2fs
/etc/init.d/vsftpd start
5