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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. The simplest way to install Apache
-l
chmod 705
ServerAdmin
yum install httpd
2. Virtual Host Configuration: Sets a root directory for the virtual host.
nfs
DocumentRoot
htpasswd -c /etc/httpd/webpass e
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
3. output from ____ is: Disk /dev/cciss/c0d0: 36.4 GB - 36414750720 bytes... plus listing of partitions - for each physical drive
fdisk
chcon -R -t httpd_sys_content_t /home/michael/public_html
First boot process
fdisk -l
4. You can use the ____ tool after installation to add any package groups that you missed.
select (followed by the device name such as /dev/hdb)
pirut
resize2fs /dev/myvg/homevol
dd if=./diskboot.img of=/dev/sdc
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
parted; mklabel k
AllowOverride
CustomLog
fdisk -l
6. 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
/boot
chkconfig --list httpd
--import file
/etc/vsftpd
7. ____ prints superblock and block group information.
dumpe2fs
parted; mklabel k
/etc/lvmtab
CustomLog
8. Where is the vsftp pub dir?
fdisk -l
/boot
/var/ftp/pub
/ (root) - /boot and linux swap
9. 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)
e2fsadm
rpm -ivh --replacepkgs xxxx*
/media/repodata
rpm -qc
10. Logical partitions on a hard drive always start with number ____; on the first PATA/IDE hard drive on a PC - that is hda____.
yum clean all
/etc/squid/
5
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
11. httpd ___ to update the httpd package - automatically answering yes to all the questions
yum -y update
rpm -ivh --replacepkgs xxxx*
yum install vsftpd
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
12. 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
chmod 705
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
lvdisplay -D /dev/rootvg/tmplv
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)
13. 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
chkconfig httpd on
chcon -R -t httpd_sys_content_t /home/michael/public_html
ErrorLog
rpm -V
14. Virtual Host Configuration: Specifies an IP address for multiple virtual hosts.
nfs
NameVirtualHost
First boot process
chcon -R -t httpd_sys_content_t /home/michael/public_html
15. _____ will change the size of /dev/rootvg/tmplv to 4 gig
lvextend -L4G /dev/rootvg/tmplv
parted /dev/hda print
rpm -ivh --replacepkgs xxxx*
yum install httpd
16. What is the standard directory for file sharing with vsFTP?
var/ftp/pub
iptables
/etc/httpd/conf/
tune2fs
17. rpm ____ [name of package] to verify the package - once you have manually imported the key
-K
tune2fs
/etc/httpd/conf/
grep '[.*]' server1.repo
18. ______ will show me volume info including vg - size - etc of /dev/rootvg/tmplv
lvdisplay -D /dev/rootvg/tmplv
--import file
yum install mod_ssl squid
fdisk -l
19. 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
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
-K
var/www/html
20. To list under which run levels the web service will start
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
chkconfig --list httpd
/etc/vsftpd
/boot
21. If you want to add an iptables command to forward TCP port 80 traffic to TCP port 3128 - you would use the following:
Yes
ErrorLog
/etc/init.d/vsftpd start
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
22. Perform a simple check of the file system. minor-num is x.
CustomLog
parted; check x
DocumentRoot
/etc/init.d/httpd start
23. What service is allowed through the default firewall?
port 21
rpm -ivh --replacepkgs xxxx*
parted; mklabel k
ssh
24. 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
chmod 701
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)
--import file
25. 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.
/etc/vsftpd
fdisk
iptables -F
showmount -a
26. Tthe file that might contain: oldvg - rootvg - etc.
/etc/lvmtab
AllowOverride
-i (do not use -U or -F!)
chmod 701
27. The main Squid configuration file is ____/squid.conf
showmount -e
chmod 701
chkconfig vsftpd on
/etc/squid/
28. If in doubt about package names - you can find them in the ...
ServerAdmin
dd if=./diskboot.img of=/dev/sdc
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)
rpm -Va
29. How to install apache?
setsebool -P squid_connect_any 1
rpm -qc
rpm -ivh --replacepkgs xxxx*
yum install httpd
30. After extending file system 'homevol' - unmount it and then run _____ to make the filesystem size match the new larger volume.
resize2fs /dev/myvg/homevol
chmod 701
fdisk -l
iptables -F
31. This line placed in /etc/hosts.deny denies all services except TFTP to computers in the example.org domain
chkconfig --list httpd
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
telnetd : ALL EXCEPT 192.168.1.10
/etc/init.d/vsftpd start
32. How to disable the firewall on the current system?
showmount -e
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
iptables -F
resize2fs /dev/myvg/homevol
33. List sboth the client hostname or IP address and mounted directory in host:dir format. This info should not be considered reliable.
fdisk -l
showmount -a
elinks
rpm -V
34. rpm options include rpm -q [package name] or rpm -qf [path/file] or rmp -q____
yum -y update
5
NameVirtualHost
(rpm -q)p file (for rpmfile name)
35. Are SELinux and iptables-based firewalls are enabled by default?
Yes
filesystem type is not ext2 or ext3
showmount -a
CustomLog
36. 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 ____
elinks
resize2fs /dev/myvg/homevol
/etc/httpd/conf/
rpm -V
37. 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:
htpasswd -c /etc/httpd/webpass e
5
elinks
First boot process
38. How to make sure apache starts automatically on next reboot?
chkconfig httpd on
5
(rpm -q)p file (for rpmfile name)
-l
39. To install both mod_ssl and squid packages
yum -y update
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
yum install mod_ssl squid
/etc/init.d/httpd start
40. Virtual Host Configuration: Assigns an e-mail address for the specified virtual host.
rpm -ivh --replacepkgs xxxx*
system-config-firewall
rpm -V
ServerAdmin
41. pam ___ will tell me if any files in the pam package have changed since it was first installed
rpm -V
system-config-firewall
rpm -e zip
rpm -qc
42. Create the basic cache directories in /var/spool/squid with the following command:
ErrorLog
squid -z
wget (http://devmon.dev.schwab.com/index.html)
ServerAdmin
43. 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:
filesystem type is not ext2 or ext3
showmount -e
resize2fs /dev/myvg/homevol
ssh
44. What parts of rhel6 should be installed to separate volumes?
e2fsadm
/ (root) - /boot and linux swap
ServerAdmin
yum install vsftpd
45. 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/vsftpd
var/ftp/pub
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
46. The most straightforward way to make sure Apache starts in bootlevels 3 and 5
/etc/vsftpd
rpm -e zip
var/www/html
chkconfig --level 35 httpd on
47. Apache supports security by specifying active ports through the Listen and ____ directives.
dd if=./diskboot.img of=/dev/sdc
yum clean all
NameVirtualHost
-i (do not use -U or -F!)
48. ____ can expand and shrink ext2 and ext3 file systems
resize2fs
chcon -R -t httpd_sys_content_t /home/michael/public_html
chkconfig --list httpd
chmod 701
49. For http - if you implement 'UserDir public_html' - you need to also ____ /home/michael/public_html if you want /home/michael/public_html accessible
elinks
iptables -F
chmod 705
yum -y update
50. For http - if you implement 'UserDir public_html' - you need to also ____ /home/michael if you want /home/michael/public_html accessible
dumpe2fs
chmod 701
grep '[.*]' server1.repo
Yes