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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. 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)
port 21
rpm -V
CustomLog
htpasswd -c /etc/httpd/webpass e
2. To list under which run levels the web service will start
chkconfig --list httpd
service vsftpd status
yum install mod_ssl squid
ServerName
3. To verify integrity of an rpm package - ____/rpm-gpg/RPM-GPG-KEY-redhat-release
yum update kernel
chkconfig vsftpd on
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
/ (root) - /boot and linux swap
4. What is the first post installation step?
-i (do not use -U or -F!)
ssh
ServerTokens
First boot process
5. List sboth the client hostname or IP address and mounted directory in host:dir format. This info should not be considered reliable.
squid -z
showmount -a
yum clean all
yum install httpd
6. 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:
dd if=./diskboot.img of=/dev/sdc
ServerName
showmount -e
--import file
7. 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.
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
iptables -F
chcon -R -t httpd_sys_content_t /home/michael/public_html
/etc/squid/
8. 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
showmount -a
telnetd : ALL EXCEPT 192.168.1.10
rpm -ivh --replacepkgs xxxx*
9. 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
dumpe2fs
iptables -F
chcon -R -t httpd_sys_content_t /home/michael/public_html
lvextend -L4G /dev/rootvg/tmplv
10. If in doubt about package names - you can find them in the ...
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
/ (root) - /boot and linux swap
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)
11. When an rpm install fails for xxxx because the same version is already apparently installed - run ____ to just install it all again
ls -Z
rpm -ivh --replacepkgs xxxx*
First boot process
wget (http://devmon.dev.schwab.com/index.html)
12. ____ can expand and shrink ext2 and ext3 file systems
chcon -R -t httpd_sys_content_t /home/michael/public_html
/etc/vsftpd
resize2fs
yum install httpd
13. The most straightforward way to make sure Apache starts in bootlevels 3 and 5
chkconfig --list httpd
5
chkconfig --level 35 httpd on
select (followed by the device name such as /dev/hdb)
14. Perform a simple check of the file system. minor-num is x.
lvdisplay -D /dev/rootvg/tmplv
5
parted; check x
rpm -V
15. It's much more difficult and much more time-consuming to revise partitions with utilities such as ____ or parted after RHEL is installed.
htpasswd -c /etc/httpd/webpass e
fdisk
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
yum install httpd
16. ____ is used to modify file system parameters
/etc/vsftpd
tune2fs
rpm -e zip
ServerTokens
17. output from ____ is: Disk /dev/cciss/c0d0: 36.4 GB - 36414750720 bytes... plus listing of partitions - for each physical drive
fdisk -l
rpm -V
-i (do not use -U or -F!)
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)
18. This line placed in /etc/hosts.deny denies all services except TFTP to computers in the example.org domain
(rpm -q)p file (for rpmfile name)
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
/etc/lvmtab
19. _____ will change the size of /dev/rootvg/tmplv to 4 gig
/media/repodata
parted /dev/hda print
/etc/lvmtab
lvextend -L4G /dev/rootvg/tmplv
20. To check status of ftp daemon
service vsftpd status
telnetd : ALL EXCEPT 192.168.1.10
rpm -Va
/boot
21. Run the ____ command to find the device associated with the USB key.
select (followed by the device name such as /dev/hdb)
chkconfig --level 35 httpd on
fdisk -l
yum clean all
22. Create the basic cache directories in /var/spool/squid with the following command:
squid -z
yum clean all
yum install httpd
nfs
23. 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
rpm -e zip
AllowOverride
fdisk -l
chmod 701
24. The main Squid configuration file is ____/squid.conf
chmod 705
-K
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
/etc/squid/
25. SELinux must be configured to Allow HTTPD To Read Home Directories. (Alternatively - activate the httpd_enable_homedirs boolean with the __ command.)
DocumentRoot
dumpe2fs
rpm -e zip
setsebool -P htttpd.enable.homedirs 1
26. what port needs to be open to access ftp?
5
yum install vsftpd
/etc/lvmtab
port 21
27. If you want to add an iptables command to forward TCP port 80 traffic to TCP port 3128 - you would use the following:
filesystem type is not ext2 or ext3
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
service vsftpd status
fdisk -l
28. How to start the vsftp service automatically on boot?
mke2fs
nfs
yum install httpd
chkconfig vsftpd on
29. How to start apache service?
tune2fs
wget (http://devmon.dev.schwab.com/index.html)
/etc/init.d/httpd start
yum clean all
30. For http - if you implement 'UserDir public_html' - you need to also ____ /home/michael/public_html if you want /home/michael/public_html accessible
tune2fs
chmod 705
showmount -a
chkconfig httpd on
31. 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 : ALL EXCEPT 192.168.1.10
ServerAdmin
iptables
showmount -e
32. rpm ____ to install kernel updates
fdisk
/etc/init.d/vsftpd start
ServerTokens
-i (do not use -U or -F!)
33. If rhel6 is in the /media directory - where is the XML file on that DVD with a database of packages and package groups?
/etc/vsftpd
var/ftp/pub
/media/repodata
yum update kernel
34. what utility can be used to open port 80?
yum install httpd
system-config-firewall
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
Yes
35. Where is vsftpd.conf?
ssh
NameVirtualHost
setup
/etc/vsftpd
36. Tthe file that might contain: oldvg - rootvg - etc.
resize2fs /dev/myvg/homevol
/etc/lvmtab
/ (root) - /boot and linux swap
NameVirtualHost
37. Create a disk label for the partition table called k
port 21
(rpm -q)p file (for rpmfile name)
parted; mklabel k
First boot process
38. Where is the main apache data directory?
mke2fs
var/www/html
NameVirtualHost
yum clean all
39. 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
-i
/etc/init.d/httpd restart
ServerName
ServerTokens
40. Where is the config dir for vsftpd?
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
select (followed by the device name such as /dev/hdb)
--import file
/etc/vsftpd
41. rpm option to show me the package files
telnetd : ALL EXCEPT 192.168.1.10
chmod 701
yum update kernel
-l
42. pam ___ will tell me if any files in the pam package have changed since it was first installed
service vsftpd status
rpm -V
yum install mod_ssl squid
ErrorLog
43. How to make sure apache starts automatically on next reboot?
chkconfig httpd on
5
LVM
/etc/squid/
44. 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
45. httpd ___ to update the httpd package - automatically answering yes to all the questions
/etc/init.d/vsftpd start
setup
rpm -qc
yum -y update
46. Virtual Host Configuration: Creates an error log; the location is based on the DocumentRoot.
pirut
ErrorLog
wget (http://devmon.dev.schwab.com/index.html)
port 21
47. I just finished editing my /etc/yum.repos.d/*repo file and want yum to use the new info - so I run ____
yum clean all
yum install vsftpd
/etc/vsftpd
var/www/html
48. How to install apache?
ServerTokens
5
var/ftp/pub
yum install httpd
49. 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 squid_connect_any 1
resize2fs
mke2fs
yum clean all
50. rpm ____ verifies all installed rpms against the rpm database
rpm -Va
(rpm -q)p file (for rpmfile name)
chcon -R -t httpd_sys_content_t /home/michael/public_html
/etc/init.d/vsftpd start