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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. httpd ___ to update the httpd package - automatically answering yes to all the questions
tune2fs
/etc/init.d/httpd start
yum -y update
iptables -F
2. '____ /var/www' will tell you the ACL settings of /var/www
ls -Z
fdisk -l
chkconfig httpd on
chcon -R -t httpd_sys_content_t /home/michael/public_html
3. How to make sure apache starts automatically on next reboot?
/var/ftp/pub
rpm -V
DocumentRoot
chkconfig httpd on
4. 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.
chmod 701
telnetd : ALL EXCEPT 192.168.1.10
iptables -F
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
5. It's much more difficult and much more time-consuming to revise partitions with utilities such as ____ or parted after RHEL is installed.
fdisk
-l
chkconfig --level 35 httpd on
/boot
6. Create the basic cache directories in /var/spool/squid with the following command:
iptables
squid -z
-i (do not use -U or -F!)
e2fsadm
7. Create a disk label for the partition table called k
htpasswd -c /etc/httpd/webpass e
parted; mklabel k
fdisk -l
nfs
8. Virtual Host Configuration: Names the URL for the virtual host.
ServerName
parted; check x
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)
/etc/vsftpd
9. 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)
chkconfig --level 35 httpd on
CustomLog
grep '[.*]' server1.repo
-i
10. 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
rpm -V
chmod 705
yum install httpd
11. What command starts the same menu as the text-mode First Boot process?
iptables -F
setup
rpm -Va
-K
12. If in doubt about package names - you can find them in the ...
mke2fs
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
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)
tune2fs
13. What is the standard directory for file sharing with vsFTP?
yum install vsftpd
var/ftp/pub
fdisk
parted /dev/hda print
14. ______ will show me volume info including vg - size - etc of /dev/rootvg/tmplv
yum install httpd
lvdisplay -D /dev/rootvg/tmplv
yum update kernel
-i (do not use -U or -F!)
15. How to start apache service?
dd if=./diskboot.img of=/dev/sdc
-i
/etc/init.d/httpd start
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
16. How to disable the firewall on the current system?
/etc/httpd/conf/
yum install httpd
iptables -F
chkconfig vsftpd on
17. rpm ____ [name of package] to verify the package - once you have manually imported the key
iptables -F
e2fsadm
yum install mod_ssl squid
-K
18. How to start the vsftp service automatically on boot?
chkconfig vsftpd on
yum install httpd
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
/var/ftp/pub
19. 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
/etc/httpd/conf/
squid -z
setsebool -P squid_connect_any 1
First boot process
20. 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:
yum install vsftpd
lvdisplay -D /dev/rootvg/tmplv
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
showmount -e
21. 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
chmod 705
telnetd : ALL EXCEPT 192.168.1.10
-l
NameVirtualHost
22. Run the ____ command to find the device associated with the USB key.
fdisk -l
setsebool -P htttpd.enable.homedirs 1
lvextend -L4G /dev/rootvg/tmplv
showmount -e
23. What parts of rhel6 should be installed to separate volumes?
/var/ftp/pub
chkconfig vsftpd 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)
/ (root) - /boot and linux swap
24. How to install apache?
yum install httpd
/etc/init.d/httpd start
AllowOverride
system-config-firewall
25. After extending file system 'homevol' - unmount it and then run _____ to make the filesystem size match the new larger volume.
setup
chmod 705
resize2fs /dev/myvg/homevol
yum update kernel
26. Where to find the main apache config file?
AllowOverride
/etc/httpd/conf/
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
/media/repodata
27. Virtual Host Configuration: Specifies an IP address for multiple virtual hosts.
NameVirtualHost
/etc/lvmtab
rpm -Va
-l
28. 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
DocumentRoot
setsebool -P squid_connect_any 1
e2fsadm
AllowOverride
29. To check status of ftp daemon
showmount -a
service vsftpd status
wget (http://devmon.dev.schwab.com/index.html)
e2fsadm
30. 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
fdisk
htpasswd -c /etc/httpd/webpass e
/etc/httpd/conf/
31. What service is allowed through the default firewall?
select (followed by the device name such as /dev/hdb)
NameVirtualHost
ssh
tune2fs
32. ____ is used for creating ext2 and ext3 file systems
mke2fs
CustomLog
(rpm -q)p file (for rpmfile name)
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
33. Use parted to display disk geometry for /dev/hda and end up in shell
tune2fs
chcon -R -t httpd_sys_content_t /home/michael/public_html
-l
parted /dev/hda print
34. For http - if you implement 'UserDir public_html' - you need to also ____ /home/michael if you want /home/michael/public_html accessible
service vsftpd status
fdisk
chmod 701
e2fsadm
35. Tthe file that might contain: oldvg - rootvg - etc.
showmount -e
/etc/lvmtab
yum clean all
chkconfig --level 35 httpd on
36. After you edit /etc/exports - run service ___ stop...
/media/repodata
e2fsadm
var/www/html
nfs
37. 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
iptables
NameVirtualHost
pirut
38. 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
/media/repodata
rpm -ivh --replacepkgs xxxx*
chcon -R -t httpd_sys_content_t /home/michael/public_html
elinks
39. Logical partitions on a hard drive always start with number ____; on the first PATA/IDE hard drive on a PC - that is hda____.
iptables -F
5
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
mke2fs
40. Virtual Host Configuration: Creates an error log; the location is based on the DocumentRoot.
yum install mod_ssl squid
ErrorLog
showmount -a
yum -y update
41. rpm ____ verifies all installed rpms against the rpm database
rpm -Va
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
CustomLog
parted /dev/hda print
42. When an rpm install fails for xxxx because the same version is already apparently installed - run ____ to just install it all again
/etc/init.d/httpd start
resize2fs /dev/myvg/homevol
rpm -ivh --replacepkgs xxxx*
chmod 701
43. This line placed in /etc/hosts.deny denies all services except TFTP to computers in the example.org domain
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
showmount -a
chmod 705
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
44. ____ can expand and shrink ext2 and ext3 file systems
ServerTokens
yum -y update
chmod 705
resize2fs
45. rpm ____ to import the rpm key for integrity checking
yum update kernel
chmod 701
grep '[.*]' server1.repo
--import file
46. _____ will change the size of /dev/rootvg/tmplv to 4 gig
telnetd : ALL EXCEPT 192.168.1.10
LVM
5
lvextend -L4G /dev/rootvg/tmplv
47. what port needs to be open to access ftp?
port 21
-i (do not use -U or -F!)
select (followed by the device name such as /dev/hdb)
/etc/init.d/httpd start
48. Apache supports security by specifying active ports through the Listen and ____ directives.
/etc/vsftpd
resize2fs
NameVirtualHost
nfs
49. The main Squid configuration file is ____/squid.conf
chkconfig --level 35 httpd on
parted; check x
/etc/squid/
rpm -V
50. 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
iptables
var/www/html
/boot
chkconfig vsftpd on