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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. What parts of rhel6 should be installed to separate volumes?
wget (http://devmon.dev.schwab.com/index.html)
/ (root) - /boot and linux swap
-K
lvdisplay -D /dev/rootvg/tmplv
2. pam ___ will tell me if any files in the pam package have changed since it was first installed
rpm -V
Yes
setsebool -P squid_connect_any 1
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
3. Where is vsftpd.conf?
-i
Yes
/etc/vsftpd
chkconfig --level 35 httpd on
4. Where is the vsftp pub dir?
/var/ftp/pub
rpm -ivh --replacepkgs xxxx*
setsebool -P squid_connect_any 1
First boot process
5. After extending file system 'homevol' - unmount it and then run _____ to make the filesystem size match the new larger volume.
pirut
lvdisplay -D /dev/rootvg/tmplv
/etc/lvmtab
resize2fs /dev/myvg/homevol
6. ____ is used for creating ext2 and ext3 file systems
mke2fs
yum update kernel
var/www/html
rpm -e zip
7. This line placed in /etc/hosts.deny denies all services except TFTP to computers in the example.org domain
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
-K
parted; check x
tune2fs
8. When an rpm install fails for xxxx because the same version is already apparently installed - run ____ to just install it all again
squid -z
telnetd : ALL EXCEPT 192.168.1.10
rpm -ivh --replacepkgs xxxx*
DocumentRoot
9. For http - if you implement 'UserDir public_html' - you need to also ____ /home/michael if you want /home/michael/public_html accessible
setsebool -P htttpd.enable.homedirs 1
/etc/init.d/vsftpd start
telnetd : ALL EXCEPT 192.168.1.10
chmod 701
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
port 21
dd if=./diskboot.img of=/dev/sdc
ServerTokens
yum update kernel
11. If in doubt about package names - you can find them in the ...
rpm -V
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/init.d/httpd start
parted /dev/hda print
12. 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
-i (do not use -U or -F!)
setsebool -P squid_connect_any 1
/var/ftp/pub
/ (root) - /boot and linux swap
13. _____ will change the size of /dev/rootvg/tmplv to 4 gig
pirut
lvextend -L4G /dev/rootvg/tmplv
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
ssh
14. How to start apache service?
Yes
yum update kernel
rpm -qc
/etc/init.d/httpd start
15. What service is allowed through the default firewall?
yum install vsftpd
ssh
/etc/httpd/conf/
parted /dev/hda print
16. 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:
ssh
showmount -e
DocumentRoot
yum install vsftpd
17. SELinux must be configured to Allow HTTPD To Read Home Directories. (Alternatively - activate the httpd_enable_homedirs boolean with the __ command.)
/etc/init.d/vsftpd start
ls -Z
chcon -R -t httpd_sys_content_t /home/michael/public_html
setsebool -P htttpd.enable.homedirs 1
18. To verify integrity of an rpm package - ____/rpm-gpg/RPM-GPG-KEY-redhat-release
/etc/squid/
lvdisplay -D /dev/rootvg/tmplv
iptables -F
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
19. If rhel6 is in the /media directory - where is the XML file on that DVD with a database of packages and package groups?
/etc/lvmtab
ServerAdmin
/media/repodata
rpm -V
20. 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.
NameVirtualHost
iptables -F
wget (http://devmon.dev.schwab.com/index.html)
lvextend -L4G /dev/rootvg/tmplv
21. Perform a simple check of the file system. minor-num is x.
parted; check x
/etc/vsftpd
(rpm -q)p file (for rpmfile name)
rpm -Va
22. For http - if you implement 'UserDir public_html' - you need to also ____ /home/michael/public_html if you want /home/michael/public_html accessible
chmod 705
pirut
--import file
filesystem type is not ext2 or ext3
23. 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 ____
parted; mklabel k
elinks
fdisk
grep '[.*]' server1.repo
24. Run the ____ command to find the device associated with the USB key.
fdisk -l
-i
wget (http://devmon.dev.schwab.com/index.html)
ls -Z
25. To select a different device without having to restart parted - use the ____ command . Then - you can view its partition table or configure it.
yum clean all
setsebool -P htttpd.enable.homedirs 1
-i (do not use -U or -F!)
select (followed by the device name such as /dev/hdb)
26. The most straightforward way to make sure Apache starts in bootlevels 3 and 5
Yes
chkconfig --list httpd
showmount -a
chkconfig --level 35 httpd on
27. To list under which run levels the web service will start
chkconfig --list httpd
AllowOverride
showmount -a
e2fsadm
28. Where is the main apache data directory?
var/www/html
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
(rpm -q)p file (for rpmfile name)
/etc/squid/
29. ____ is used to modify file system parameters
htpasswd -c /etc/httpd/webpass e
iptables -F
filesystem type is not ext2 or ext3
tune2fs
30. httpd ___ to update the httpd package - automatically answering yes to all the questions
/boot
yum -y update
/etc/squid/
fdisk -l
31. What command starts the same menu as the text-mode First Boot process?
setup
rpm -V
chkconfig vsftpd on
chkconfig httpd on
32. I ran 'e2label /dev/sda' and got 'bad magic number' Why?
dumpe2fs
filesystem type is not ext2 or ext3
ServerTokens
/etc/squid/
33. ____ prints superblock and block group information.
dumpe2fs
var/www/html
elinks
yum clean all
34. output from ____ is: Disk /dev/cciss/c0d0: 36.4 GB - 36414750720 bytes... plus listing of partitions - for each physical drive
/etc/httpd/conf/
First boot process
fdisk -l
chkconfig vsftpd on
35. What is the first post installation step?
yum clean all
CustomLog
elinks
First boot process
36. 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)
/etc/init.d/vsftpd start
ServerAdmin
chmod 701
CustomLog
37. 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
Yes
lvdisplay -D /dev/rootvg/tmplv
AllowOverride
rpm -ivh --replacepkgs xxxx*
38. Create a usb boot disk if the usb stick is /dev/sdc and the file you need is in your present directory
dd if=./diskboot.img of=/dev/sdc
chcon -R -t httpd_sys_content_t /home/michael/public_html
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)
-i (do not use -U or -F!)
39. 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
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
AllowOverride
yum install httpd
40. ___ http://devmon.dev.schwab.com/index.html will make a local copy of the index.html file from devmon
wget (http://devmon.dev.schwab.com/index.html)
yum update kernel
htpasswd -c /etc/httpd/webpass e
setsebool -P htttpd.enable.homedirs 1
41. what utility can be used to open port 80?
system-config-firewall
grep '[.*]' server1.repo
NameVirtualHost
/etc/httpd/conf/
42. Logical partitions on a hard drive always start with number ____; on the first PATA/IDE hard drive on a PC - that is hda____.
dumpe2fs
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
ssh
5
43. Apache supports security by specifying active ports through the Listen and ____ directives.
NameVirtualHost
grep '[.*]' server1.repo
mke2fs
port 21
44. You can use the ____ tool after installation to add any package groups that you missed.
chkconfig vsftpd on
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
ServerTokens
pirut
45. How do you restart the apache web server?
/boot
/etc/init.d/httpd restart
wget (http://devmon.dev.schwab.com/index.html)
nfs
46. How to start the vsftp service?
ServerName
wget (http://devmon.dev.schwab.com/index.html)
showmount -a
/etc/init.d/vsftpd start
47. rpm ____ to import the rpm key for integrity checking
--import file
/etc/vsftpd
-l
chkconfig --level 35 httpd on
48. rpm option to show me the package files
wget (http://devmon.dev.schwab.com/index.html)
ServerAdmin
-l
telnetd : ALL EXCEPT 192.168.1.10
49. List sboth the client hostname or IP address and mounted directory in host:dir format. This info should not be considered reliable.
var/ftp/pub
showmount -a
/etc/lvmtab
rpm -V
50. rpm ____ to install kernel updates
-i (do not use -U or -F!)
DocumentRoot
setsebool -P squid_connect_any 1
yum clean all