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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 will mean that only computer allowed to access our Telnet server has an IP address of 192.168.1.10
telnetd : ALL EXCEPT 192.168.1.10
filesystem type is not ext2 or ext3
chcon -R -t httpd_sys_content_t /home/michael/public_html
/etc/init.d/httpd start
2. To list under which run levels the web service will start
chkconfig --list httpd
var/ftp/pub
/etc/httpd/conf/
NameVirtualHost
3. 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 ____
/etc/httpd/conf/
/etc/init.d/vsftpd start
rpm -V
rpm -e zip
4. The rpm ____ option installs the package - if it isn't already installed.
/media/repodata
-i
var/ftp/pub
rpm -ivh --replacepkgs xxxx*
5. 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
fdisk
-i
ServerName
6. rpm ____ to install kernel updates
dd if=./diskboot.img of=/dev/sdc
system-config-firewall
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
-i (do not use -U or -F!)
7. 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
showmount -e
nfs
setsebool -P squid_connect_any 1
8. For http - if you implement 'UserDir public_html' - you need to also ____ /home/michael if you want /home/michael/public_html accessible
CustomLog
lvdisplay -D /dev/rootvg/tmplv
/etc/vsftpd
chmod 701
9. Where to find the main apache config file?
-i
/etc/httpd/conf/
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
lvdisplay -D /dev/rootvg/tmplv
10. How to start apache service?
/etc/init.d/httpd restart
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
chmod 701
/etc/init.d/httpd start
11. output from ____ is: Disk /dev/cciss/c0d0: 36.4 GB - 36414750720 bytes... plus listing of partitions - for each physical drive
fdisk -l
chkconfig vsftpd on
/etc/httpd/conf/
port 21
12. 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
iptables
tune2fs
iptables -F
rpm -V
13. If you want to add an iptables command to forward TCP port 80 traffic to TCP port 3128 - you would use the following:
showmount -a
yum clean all
setsebool -P squid_connect_any 1
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
14. 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)
var/ftp/pub
fdisk -l
dumpe2fs
e2fsadm
15. If rhel6 is in the /media directory - where is the XML file on that DVD with a database of packages and package groups?
/media/repodata
fdisk -l
htpasswd -c /etc/httpd/webpass e
resize2fs /dev/myvg/homevol
16. When an rpm install fails for xxxx because the same version is already apparently installed - run ____ to just install it all again
yum install vsftpd
setsebool -P htttpd.enable.homedirs 1
rpm -ivh --replacepkgs xxxx*
tune2fs
17. How to install apache?
system-config-firewall
/etc/init.d/httpd restart
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
yum install httpd
18. ____ can expand and shrink ext2 and ext3 file systems
NameVirtualHost
yum install httpd
ls -Z
resize2fs
19. 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
showmount -e
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)
20. List sboth the client hostname or IP address and mounted directory in host:dir format. This info should not be considered reliable.
showmount -a
wget (http://devmon.dev.schwab.com/index.html)
LVM
/etc/vsftpd
21. To verify integrity of an rpm package - ____/rpm-gpg/RPM-GPG-KEY-redhat-release
chcon -R -t httpd_sys_content_t /home/michael/public_html
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
-l
/media/repodata
22. The main Squid configuration file is ____/squid.conf
service vsftpd status
grep '[.*]' server1.repo
ErrorLog
/etc/squid/
23. After extending file system 'homevol' - unmount it and then run _____ to make the filesystem size match the new larger volume.
NameVirtualHost
iptables
DocumentRoot
resize2fs /dev/myvg/homevol
24. httpd ___ to update the httpd package - automatically answering yes to all the questions
yum -y update
5
yum install mod_ssl squid
-K
25. 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:
LVM
yum update kernel
/boot
showmount -e
26. pam ___ will tell me if any files in the pam package have changed since it was first installed
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
lvdisplay -D /dev/rootvg/tmplv
rpm -V
setsebool -P squid_connect_any 1
27. Virtual Host Configuration: Creates an error log; the location is based on the DocumentRoot.
/etc/init.d/httpd restart
/etc/vsftpd
ServerAdmin
ErrorLog
28. rpm ____ to import the rpm key for integrity checking
tune2fs
--import file
parted; mklabel k
-i (do not use -U or -F!)
29. Where is the vsftp pub dir?
ssh
/etc/httpd/conf/
/var/ftp/pub
pirut
30. '____ /var/www' will tell you the ACL settings of /var/www
ssh
rpm -Va
ls -Z
5
31. what utility can be used to open port 80?
/etc/vsftpd
/ (root) - /boot and linux swap
system-config-firewall
5
32. What is the first post installation step?
yum install httpd
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
First boot process
showmount -e
33. 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
34. 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 ____
resize2fs /dev/myvg/homevol
-K
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
elinks
35. 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
NameVirtualHost
rpm -ivh --replacepkgs xxxx*
setsebool -P squid_connect_any 1
nfs
36. It's much more difficult and much more time-consuming to revise partitions with utilities such as ____ or parted after RHEL is installed.
mke2fs
/ (root) - /boot and linux swap
yum install mod_ssl squid
fdisk
37. 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
/etc/httpd/conf/
system-config-firewall
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
LVM
38. Where is the config dir for vsftpd?
/etc/vsftpd
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
/etc/init.d/httpd start
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
39. Some computers built before 1998 may have a BIOS that limits access to hard disks beyond the 1024th cylinder. Some older BIOSs report only 1024 cylinders on a hard drive no matter how many actual cylinders are present. Computers that are subject to t
-i
NameVirtualHost
-i (do not use -U or -F!)
/boot
40. Apache supports security by specifying active ports through the Listen and ____ directives.
wget (http://devmon.dev.schwab.com/index.html)
parted; check x
ErrorLog
NameVirtualHost
41. How to install vsftpd?
setsebool -P htttpd.enable.homedirs 1
rpm -ivh --replacepkgs xxxx*
yum install vsftpd
chmod 701
42. To install both mod_ssl and squid packages
yum install httpd
chkconfig --list httpd
chkconfig --level 35 httpd on
yum install mod_ssl squid
43. 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
yum update kernel
DocumentRoot
squid -z
-i (do not use -U or -F!)
44. Create a disk label for the partition table called k
parted; mklabel k
iptables -F
fdisk -l
yum install vsftpd
45. What command starts the same menu as the text-mode First Boot process?
setup
rpm -V zip
5
dd if=./diskboot.img of=/dev/sdc
46. I ran 'e2label /dev/sda' and got 'bad magic number' Why?
fdisk -l
parted /dev/hda print
filesystem type is not ext2 or ext3
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
47. 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:
First boot process
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
chkconfig --list httpd
48. To select a different device without having to restart parted - use the ____ command . Then - you can view its partition table or configure it.
chkconfig vsftpd on
/etc/init.d/vsftpd start
select (followed by the device name such as /dev/hdb)
resize2fs /dev/myvg/homevol
49. 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:
rpm -V zip
htpasswd -c /etc/httpd/webpass e
dumpe2fs
var/ftp/pub
50. To check status of ftp daemon
service vsftpd status
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
filesystem type is not ext2 or ext3
-K