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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. Virtual Host Configuration: Names the URL for the virtual host.
-i (do not use -U or -F!)
nfs
ServerName
fdisk
2. ___________ can be on a RAID device
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
bootable partitions
dumpe2fs
-l
3. 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:
elinks
showmount -e
arted; mklabel k
yum update kernel
4. ____ is used to modify file system parameters
ls -Z
tune2fs
rpm -qc httpd
/boot
5. It's much more difficult and much more time-consuming to revise partitions with utilities such as ____ or parted after RHEL is installed.
lvdisplay -D /dev/rootvg/tmplv
fdisk -l
fdisk
NameVirtualHost
6. To verify integrity of an rpm package - ____/rpm-gpg/RPM-GPG-KEY-redhat-release
select (followed by the device name such as /dev/hdb)
ErrorLog
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
iptables
7. create a usb boot disk if the usb stick is /dev/sdc and the file you need is in your present directory
elinks
dd if=./diskboot.img of=/dev/sdc
select (followed by the device name such as /dev/hdb)
ServerName
8. 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
yum clean all
DocumentRoot
ServerAdmin
9. ;'___ /var/www' will tell you the ACL settings of /var/www
/etc/squid/
rpm -V
ls -Z
grep "[.*]" server1.repo
10. 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:
-l
htpasswd -c /etc/httpd/webpass e
-i (do not use -U or -F!)
/etc/lvmtab
11. ____.com - ____.net - and ____.org domains are generic domain names that can't be assigned on the Internet. You can therefore use any of these domain names on your private network.
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
lvdisplay -D /dev/rootvg/tmplv
example
12. when an rpm install fails for xxxx because the same version is already apparently installed - run ____ to just install it all again
/boot
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
rpm -ivh --replacepkgs xxxx*
-i
13. ___ will tell me if any files in the pam package have changed since it was first installed
rpm -V pam
chmod 705
hkconfig --list httpd
example
14. after extending file system "homevol" - unmount it and then run _____ to make the filesystem size match the new larger volume.
resize2fs /dev/myvg/homevol
mke2fs
rpm -Va
yum -y update httpd
15. rpm ____ to import the rpm key for integrity checking
ServerName
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
--import file
yum update kernel
16. ____ is used for creating ext2 and ext3 file systems
lvextend -L4G /dev/rootvg/tmplv
dumpe2fs
mke2fs
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
17. after you edit /etc/exports - run service ___ stop...
htpasswd -c /etc/httpd/webpass e
nfs
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
yum update kernel
18. If you want to add an iptables command to forward TCP port 80 traffic to TCP port 3128 - you would use the following:
yum clean all
fdisk
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
chcon -R -t httpd_sys_content_t /home/michael/public_html
19. The most straightforward way to make sure Apache starts in bootlevels 3 and 5
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
ServerAdmin
ServerTokens OS from http.conf
chkconfig --level 35 httpd on
20. ___ http://devmon.dev.schwab.com/index.html will make a local copy of the index.html file from devmon
AllowOverride
ServerTokens OS from http.conf
resize2fs
wget (http://devmon.dev.schwab.com/index.html)
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
telnetd : ALL EXCEPT 192.168.1.10
yum clean all
NameVirtualHost
chcon -R -t httpd_sys_content_t /home/michael/public_html
22. The simplest way to install Apache
yum install httpd
ServerName
example
rpm -V pam
23. This line: in /etc/hosts.allow: telnetd : 172.16.72.0/255.255.254.0 is ____
/boot
service vsftpd status
elinks
ok
24. To list under which run levels the web service will start
hkconfig --list httpd
/etc/lvmtab
ErrorLog
LVM
25. The main Squid configuration file is ____/squid.conf
showmount -a
ServerTokens OS from http.conf
/etc/squid/
bootable partitions
26. Virtual Host Configuration: Specifies an IP address for multiple virtual hosts.
NameVirtualHost
-i
resize2fs
yum install httpd
27. SELinux must be configured to Allow HTTPD To Read Home Directories. (Alternatively - activate the httpd_enable_homedirs boolean with the __ command.)
yum install httpd
lvdisplay -D /dev/rootvg/tmplv
setsebool -P htttpd.enable.homedirs 1
chcon -R -t httpd_sys_content_t /home/michael/public_html
28. use parted to display disk geometry for /dev/hda and end up in shell
rpm -qc httpd
iptables -F
chcon -R -t httpd_sys_content_t /home/michael/public_html
parted /dev/hda print
29. use grep to count how many repositories have been configured in the file server1.repo
grep "[.*]" server1.repo
chcon -R -t httpd_sys_content_t /home/michael/public_html
filesystem type is not ext2 or ext3
ErrorLog
30. for http - if you implement "UserDir public_html" - you need to also ____ /home/michael/public_html if you want /home/michael/public_html accessible
-l
dumpe2fs
chmod 705
/etc/lvmtab
31. You can use the ____ tool after installation to add any package groups that you missed.
AllowOverride
/boot
pirut
chmod 701
32. 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
yum -y update httpd
chcon -R -t httpd_sys_content_t /home/michael/public_html
select (followed by the device name such as /dev/hdb)
setsebool -P squid_connect_any 1
33. To select a different device without having to restart parted - use the ____ command . Then - you can view its partition table or configure it.
select (followed by the device name such as /dev/hdb)
/etc/lvmtab
chmod 705
arted; mklabel k
34. ___ to update the httpd package - automatically answering yes to all the questions
rpm -V pam
telnetd : ALL EXCEPT 192.168.1.10
yum -y update httpd
hkconfig --list httpd
35. You ran "e2label /dev/sda" and got "bad magic number" Why?
filesystem type is not ext2 or ext3
ErrorLog
rpm -V zip
service vsftpd status
36. create the basic cache directories in /var/spool/squid with the following command:
squid -z
5
/boot
resize2fs /dev/myvg/homevol
37. The file that might contain: oldvg - rootvg - etc.
/etc/lvmtab
yum clean all
yum install httpd
rpm -V zip
38. 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)
telnetd : ALL EXCEPT 192.168.1.10
ServerAdmin
CustomLog
nfs
39. 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
NameVirtualHost
-i
elinks
40. rpm ____ verifies all installed rpms against the rpm database
wget (http://devmon.dev.schwab.com/index.html)
rpm -Va
select (followed by the device name such as /dev/hdb)
fdisk
41. List sboth the client hostname or IP address and mounted directory in host:dir format. This info should not be considered reliable.
iptables
showmount -a
5
setsebool -P squid_connect_any 1
42. 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
lvextend -L4G /dev/rootvg/tmplv
chmod 705
chcon -R -t httpd_sys_content_t /home/michael/public_html
example
43. 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
showmount -e
rpm -V
wget (http://devmon.dev.schwab.com/index.html)
44. 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)
nfs
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
/boot
45. for http - if you implement "UserDir public_html" - you need to also ____ /home/michael if you want /home/michael/public_html accessible
chmod 701
hkconfig --list httpd
fdisk -l
resize2fs
46. Virtual Host Configuration: Assigns an e-mail address for the specified virtual host.
ServerAdmin
rpm -Va
/boot
rpm -V
47. ____ prints superblock and block group information.
hkconfig --list httpd
NameVirtualHost
arted; mklabel k
dumpe2fs
48. ____ configuration is not available via text mode RHEL installation.
5
tune2fs
yum -y update httpd
LVM
49. Perform a simple check of the file system. minor-num is x.
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
elinks
parted; check x
setsebool -P htttpd.enable.homedirs 1
50. ____ can expand and shrink ext2 and ext3 file systems
htpasswd -c /etc/httpd/webpass e
ServerTokens OS from http.conf
resize2fs
squid -z