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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. 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
chkconfig --level 35 httpd on
NameVirtualHost
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
2. 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
AllowOverride
chkconfig httpd on
setup
ServerTokens
3. 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 ____
rpm -V
elinks
setup
htpasswd -c /etc/httpd/webpass e
4. Virtual Host Configuration: Assigns an e-mail address for the specified virtual host.
yum install mod_ssl squid
chmod 701
ServerAdmin
/etc/httpd/conf/
5. 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
AllowOverride
pirut
setsebool -P squid_connect_any 1
yum install httpd
6. output from ____ is: Disk /dev/cciss/c0d0: 36.4 GB - 36414750720 bytes... plus listing of partitions - for each physical drive
dumpe2fs
iptables -F
fdisk -l
/boot
7. Tthe file that might contain: oldvg - rootvg - etc.
yum install httpd
yum install vsftpd
/etc/init.d/httpd restart
/etc/lvmtab
8. How do you restart the apache web server?
5
NameVirtualHost
/etc/init.d/httpd restart
/etc/init.d/vsftpd start
9. 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.
yum update kernel
/etc/init.d/vsftpd start
iptables -F
parted; mklabel k
10. ____ is used for creating ext2 and ext3 file systems
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)
mke2fs
elinks
11. For http - if you implement 'UserDir public_html' - you need to also ____ /home/michael if you want /home/michael/public_html accessible
/ (root) - /boot and linux swap
NameVirtualHost
/etc/lvmtab
chmod 701
12. 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)
dd if=./diskboot.img of=/dev/sdc
CustomLog
setsebool -P squid_connect_any 1
/ (root) - /boot and linux swap
13. 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
squid -z
chkconfig --level 35 httpd on
/etc/vsftpd
yum update kernel
14. Where is the vsftp pub dir?
chkconfig --list httpd
/var/ftp/pub
chmod 705
parted; check x
15. The rpm ____ option installs the package - if it isn't already installed.
htpasswd -c /etc/httpd/webpass e
-i
/media/repodata
/etc/lvmtab
16. I just finished editing my /etc/yum.repos.d/*repo file and want yum to use the new info - so I run ____
yum update kernel
ServerName
yum clean all
yum install mod_ssl squid
17. The main Squid configuration file is ____/squid.conf
select (followed by the device name such as /dev/hdb)
dumpe2fs
chkconfig httpd on
/etc/squid/
18. 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:
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)
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
--import file
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
19. I ran 'e2label /dev/sda' and got 'bad magic number' Why?
dd if=./diskboot.img of=/dev/sdc
CustomLog
/ (root) - /boot and linux swap
filesystem type is not ext2 or ext3
20. ______ will show me volume info including vg - size - etc of /dev/rootvg/tmplv
/ (root) - /boot and linux swap
iptables
-i
lvdisplay -D /dev/rootvg/tmplv
21. Create a disk label for the partition table called k
(rpm -q)p file (for rpmfile name)
parted; mklabel k
yum install mod_ssl squid
mke2fs
22. '____ /var/www' will tell you the ACL settings of /var/www
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)
chcon -R -t httpd_sys_content_t /home/michael/public_html
--import file
ls -Z
23. 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
rpm -V
ServerTokens
iptables
resize2fs /dev/myvg/homevol
24. How to install apache?
yum install httpd
elinks
/etc/lvmtab
rpm -V
25. rpm ____ [name of package] to verify the package - once you have manually imported the key
chmod 701
-K
setsebool -P htttpd.enable.homedirs 1
parted; check x
26. 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
showmount -a
/media/repodata
First boot process
27. rpm options include rpm -q [package name] or rpm -qf [path/file] or rmp -q____
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
(rpm -q)p file (for rpmfile name)
tune2fs
chkconfig --level 35 httpd on
28. Where to find the main apache config file?
/etc/httpd/conf/
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
yum install httpd
yum install vsftpd
29. To select a different device without having to restart parted - use the ____ command . Then - you can view its partition table or configure it.
-i (do not use -U or -F!)
ls -Z
select (followed by the device name such as /dev/hdb)
rpm -V
30. After you edit /etc/exports - run service ___ stop...
-i
fdisk -l
nfs
/ (root) - /boot and linux swap
31. ____ prints superblock and block group information.
dumpe2fs
yum install httpd
-l
Yes
32. How to make sure apache starts automatically on next reboot?
ErrorLog
rpm -qc
rpm -V
chkconfig httpd on
33. To install both mod_ssl and squid packages
wget (http://devmon.dev.schwab.com/index.html)
/etc/squid/
-l
yum install mod_ssl squid
34. Are SELinux and iptables-based firewalls are enabled by default?
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
Yes
ServerName
service vsftpd status
35. ____ is used to modify file system parameters
tune2fs
squid -z
yum install httpd
ssh
36. 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:
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)
ErrorLog
htpasswd -c /etc/httpd/webpass e
/etc/httpd/conf/
37. It's much more difficult and much more time-consuming to revise partitions with utilities such as ____ or parted after RHEL is installed.
fdisk
pirut
/etc/httpd/conf/
select (followed by the device name such as /dev/hdb)
38. 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:
setsebool -P htttpd.enable.homedirs 1
showmount -e
AllowOverride
CustomLog
39. What is the first post installation step?
showmount -e
chcon -R -t httpd_sys_content_t /home/michael/public_html
rpm -ivh --replacepkgs xxxx*
First boot process
40. What service is allowed through the default firewall?
telnetd : ALL EXCEPT 192.168.1.10
/var/ftp/pub
ssh
elinks
41. Virtual Host Configuration: Names the URL for the virtual host.
ServerName
yum install mod_ssl squid
/etc/httpd/conf/
squid -z
42. SELinux must be configured to Allow HTTPD To Read Home Directories. (Alternatively - activate the httpd_enable_homedirs boolean with the __ command.)
/media/repodata
setsebool -P htttpd.enable.homedirs 1
yum install httpd
tune2fs
43. what port needs to be open to access ftp?
/etc/vsftpd
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
port 21
service vsftpd status
44. Virtual Host Configuration: Creates an error log; the location is based on the DocumentRoot.
ErrorLog
NameVirtualHost
/etc/init.d/vsftpd start
parted; check x
45. httpd ___ to update the httpd package - automatically answering yes to all the questions
yum -y update
lvextend -L4G /dev/rootvg/tmplv
nfs
setup
46. Virtual Host Configuration: Sets a root directory for the virtual host.
DocumentRoot
ServerTokens
showmount -e
ssh
47. To check status of ftp daemon
/etc/vsftpd
service vsftpd status
DocumentRoot
lvdisplay -D /dev/rootvg/tmplv
48. rpm option to show me the package files
-l
fdisk -l
select (followed by the device name such as /dev/hdb)
ServerAdmin
49. What parts of rhel6 should be installed to separate volumes?
/etc/httpd/conf/
yum install vsftpd
setsebool -P squid_connect_any 1
/ (root) - /boot and linux swap
50. If rhel6 is in the /media directory - where is the XML file on that DVD with a database of packages and package groups?
showmount -e
dd if=./diskboot.img of=/dev/sdc
/etc/init.d/vsftpd start
/media/repodata