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Test your basic knowledge |
Redhat Linux Administration
Start Test
Study First
Subject
:
it-skills
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
telnetd : ALL EXCEPT 192.168.1.10
ServerName
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
DocumentRoot
2. ___ to update the httpd package - automatically answering yes to all the questions
rpm -V pam
yum -y update httpd
bootable partitions
dd if=./diskboot.img of=/dev/sdc
3. ____ is used for creating ext2 and ext3 file systems
NameVirtualHost
mke2fs
e2fsadm
NameVirtualHost
4. ____ prints superblock and block group information.
fdisk -l
chkconfig --level 35 httpd on
example
dumpe2fs
5. rpm ____ to import the rpm key for integrity checking
rpm -V pam
showmount -a
--import file
tune2fs
6. Virtual Host Configuration: Assigns an e-mail address for the specified virtual host.
ServerAdmin
5
arted; mklabel k
fdisk
7. ____ configuration is not available via text mode RHEL installation.
LVM
NameVirtualHost
yum install mod_ssl squid
yum install httpd
8. create the basic cache directories in /var/spool/squid with the following command:
ErrorLog
rpm -qc httpd
squid -z
yum -y update httpd
9. Apache supports security by specifying active ports through the Listen and ____ directives.
example
NameVirtualHost
ok
rpm -V
10. use grep to count how many repositories have been configured in the file server1.repo
/etc/lvmtab
lvdisplay -D /dev/rootvg/tmplv
grep "[.*]" server1.repo
example
11. 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:
fdisk
dumpe2fs
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
elinks
12. To select a different device without having to restart parted - use the ____ command . Then - you can view its partition table or configure it.
dd if=./diskboot.img of=/dev/sdc
hkconfig --list httpd
dumpe2fs
select (followed by the device name such as /dev/hdb)
13. It's much more difficult and much more time-consuming to revise partitions with utilities such as ____ or parted after RHEL is installed.
NameVirtualHost
mke2fs
-i
fdisk
14. Perform a simple check of the file system. minor-num is x.
parted; check x
rpm -V
fdisk -l
(rpm -q)p file (for rpmfile name)
15. You can use the ____ tool after installation to add any package groups that you missed.
e2fsadm
pirut
squid -z
(rpm -q)p file (for rpmfile name)
16. Virtual Host Configuration: Specifies an IP address for multiple virtual hosts.
fdisk -l
(rpm -q)p file (for rpmfile name)
NameVirtualHost
yum -y update httpd
17. rpm options include rpm -q [package name] or rpm -qf [path/file] or rmp -q____
(rpm -q)p file (for rpmfile name)
ServerTokens OS from http.conf
/etc/lvmtab
ok
18. The most straightforward way to make sure Apache starts in bootlevels 3 and 5
nfs
chkconfig --level 35 httpd on
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
parted; check x
19. To verify integrity of an rpm package - ____/rpm-gpg/RPM-GPG-KEY-redhat-release
iptables
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
arted; mklabel k
-K
20. 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)
CustomLog
example
wget (http://devmon.dev.schwab.com/index.html)
setsebool -P squid_connect_any 1
21. ____ is used to modify file system parameters
e2fsadm
tune2fs
fdisk
nfs
22. The RPM database also maintains an MD5 checksum of each file. With the checksum - you can use the ____ package command to determine whether any file from that RPM package has changed.
squid -z
resize2fs /dev/myvg/homevol
wget (http://devmon.dev.schwab.com/index.html)
rpm -V
23. The simplest way to install Apache
yum install httpd
lvextend -L4G /dev/rootvg/tmplv
select (followed by the device name such as /dev/hdb)
yum install mod_ssl squid
24. 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
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
25. rpm ____ [name of package] to verify the package - once you have manually imported the key
rpm -Va
rpm -V pam
-K
chkconfig --level 35 httpd on
26. ___ will tell me if any files in the pam package have changed since it was first installed
rpm -V pam
setsebool -P squid_connect_any 1
iptables -F
resize2fs
27. List sboth the client hostname or IP address and mounted directory in host:dir format. This info should not be considered reliable.
ok
CustomLog
select (followed by the device name such as /dev/hdb)
showmount -a
28. The file that might contain: oldvg - rootvg - etc.
yum install mod_ssl squid
/etc/lvmtab
yum install httpd
grep "[.*]" server1.repo
29. output from ____ is: Disk /dev/cciss/c0d0: 36.4 GB - 36414750720 bytes... plus listing of partitions - for each physical drive
ServerName
-i
fdisk -l
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
30. rpm ____ to install kernel updates
ServerName
-i (do not use -U or -F!)
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
rpm -qc httpd
31. _____ will change the size of /dev/rootvg/tmplv to 4 gig
resize2fs /dev/myvg/homevol
NameVirtualHost
lvextend -L4G /dev/rootvg/tmplv
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
32. 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
showmount -e
dd if=./diskboot.img of=/dev/sdc
ServerName
telnetd : ALL EXCEPT 192.168.1.10
33. You just finished editing your /etc/yum.repos.d/*repo file and want yum to use the new info - so you run ____
bootable partitions
mke2fs
yum clean all
arted; mklabel k
34. 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:
resize2fs /dev/myvg/homevol
wget (http://devmon.dev.schwab.com/index.html)
filesystem type is not ext2 or ext3
htpasswd -c /etc/httpd/webpass e
35. Run the ____ command to find the device associated with the USB key.
yum update kernel
fdisk
ServerAdmin
fdisk -l
36. To check status of ftp daemon
yum install mod_ssl squid
fdisk -l
-K
service vsftpd status
37. 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:
select (followed by the device name such as /dev/hdb)
showmount -e
AllowOverride
chkconfig --level 35 httpd on
38. 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
ServerName
chcon -R -t httpd_sys_content_t /home/michael/public_html
/etc/squid/
39. Virtual Host Configuration: Creates an error log; the location is based on the DocumentRoot.
ErrorLog
resize2fs
chkconfig --level 35 httpd on
arted; mklabel k
40. Virtual Host Configuration: Sets a root directory for the virtual host.
htpasswd -c /etc/httpd/webpass e
grep "[.*]" server1.repo
fdisk -l
DocumentRoot
41. logical partitions on a hard drive always start with number ____; on the first PATA/IDE hard drive on a PC - that is hda____.
tune2fs
pirut
5
yum install httpd
42. when an rpm install fails for xxxx because the same version is already apparently installed - run ____ to just install it all again
iptables -F
/boot
rpm -ivh --replacepkgs xxxx*
ServerTokens OS from http.conf
43. use parted to display disk geometry for /dev/hda and end up in shell
parted /dev/hda print
--import file
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
elinks
44. ____ can expand and shrink ext2 and ext3 file systems
ok
ls -Z
resize2fs
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
45. for http - if you implement "UserDir public_html" - you need to also ____ /home/michael/public_html if you want /home/michael/public_html accessible
telnetd : ALL EXCEPT 192.168.1.10
/etc/lvmtab
chmod 705
ErrorLog
46. rpm ____ verifies all installed rpms against the rpm database
chmod 705
5
rpm -Va
rpm -V zip
47. Create a disk label for the partition table called k
ls -Z
arted; mklabel k
resize2fs
(rpm -q)p file (for rpmfile name)
48. after you edit /etc/exports - run service ___ stop...
(rpm -q)p file (for rpmfile name)
yum install httpd
service vsftpd status
nfs
49. 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 ____
dumpe2fs
-i
elinks
e2fsadm
50. ___________ can be on a RAID device
fdisk -l
rpm -V zip
bootable partitions
5