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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 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)
select (followed by the device name such as /dev/hdb)
rpm -qc httpd
iptables
2. rpm ____ verifies the installed zip rpm against the rpm database
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
rpm -V zip
wget (http://devmon.dev.schwab.com/index.html)
mke2fs
3. It's much more difficult and much more time-consuming to revise partitions with utilities such as ____ or parted after RHEL is installed.
fdisk
showmount -e
filesystem type is not ext2 or ext3
ServerAdmin
4. 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 ____
AllowOverride
elinks
rpm -qc httpd
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
5. 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
--import file
yum -y update httpd
lvdisplay -D /dev/rootvg/tmplv
setsebool -P squid_connect_any 1
6. Run the ____ command to find the device associated with the USB key.
resize2fs /dev/myvg/homevol
telnetd : ALL EXCEPT 192.168.1.10
ls -Z
fdisk -l
7. 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:
mke2fs
dd if=./diskboot.img of=/dev/sdc
rpm -ivh --replacepkgs xxxx*
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
8. rpm options include rpm -q [package name] or rpm -qf [path/file] or rmp -q____
nfs
e2fsadm
(rpm -q)p file (for rpmfile name)
rpm -V zip
9. You ran "e2label /dev/sda" and got "bad magic number" Why?
lvdisplay -D /dev/rootvg/tmplv
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
arted; mklabel k
filesystem type is not ext2 or ext3
10. after you edit /etc/exports - run service ___ stop...
/etc/squid/
DocumentRoot
grep "[.*]" server1.repo
nfs
11. ___ shows me what config files were installed when the httpd package was installed
pirut
rpm -qc httpd
ok
resize2fs /dev/myvg/homevol
12. ___ will tell me if any files in the pam package have changed since it was first installed
yum install httpd
-K
ok
rpm -V pam
13. If you want to add an iptables command to forward TCP port 80 traffic to TCP port 3128 - you would use the following:
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
hkconfig --list httpd
resize2fs
yum -y update httpd
14. rpm ____ to import the rpm key for integrity checking
--import file
yum install httpd
ServerAdmin
yum install mod_ssl squid
15. The rpm ____ option installs the package - if it isn't already installed.
nfs
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
-i
bootable partitions
16. 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
grep "[.*]" server1.repo
-i (do not use -U or -F!)
-i
iptables
17. logical partitions on a hard drive always start with number ____; on the first PATA/IDE hard drive on a PC - that is hda____.
5
NameVirtualHost
e2fsadm
NameVirtualHost
18. ___ http://devmon.dev.schwab.com/index.html will make a local copy of the index.html file from devmon
chmod 701
bootable partitions
wget (http://devmon.dev.schwab.com/index.html)
yum install httpd
19. for http - if you implement "UserDir public_html" - you need to also ____ /home/michael if you want /home/michael/public_html accessible
chmod 701
fdisk -l
wget (http://devmon.dev.schwab.com/index.html)
/etc/squid/
20. use parted to display disk geometry for /dev/hda and end up in shell
arted; mklabel k
chmod 701
parted /dev/hda print
/boot
21. 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:
fdisk
elinks
chkconfig --level 35 httpd on
htpasswd -c /etc/httpd/webpass e
22. Virtual Host Configuration: Creates an error log; the location is based on the DocumentRoot.
ServerName
rpm -V
ErrorLog
dumpe2fs
23. Virtual Host Configuration: Names the URL for the virtual host.
ServerName
chkconfig --level 35 httpd on
filesystem type is not ext2 or ext3
showmount -a
24. ____ configuration is not available via text mode RHEL installation.
ServerAdmin
LVM
/etc/squid/
rpm -V zip
25. 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:
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
showmount -e
NameVirtualHost
arted; mklabel k
26. ____ is used for creating ext2 and ext3 file systems
yum clean all
filesystem type is not ext2 or ext3
mke2fs
nfs
27. ;'___ /var/www' will tell you the ACL settings of /var/www
elinks
ls -Z
dd if=./diskboot.img of=/dev/sdc
setsebool -P squid_connect_any 1
28. ____ can expand and shrink ext2 and ext3 file systems
/boot
yum update kernel
resize2fs
--import file
29. List sboth the client hostname or IP address and mounted directory in host:dir format. This info should not be considered reliable.
showmount -a
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
lvdisplay -D /dev/rootvg/tmplv
(rpm -q)p file (for rpmfile name)
30. ____.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.
setsebool -P htttpd.enable.homedirs 1
-l
example
iptables
31. To select a different device without having to restart parted - use the ____ command . Then - you can view its partition table or configure it.
arted; mklabel k
rpm -ivh --replacepkgs xxxx*
select (followed by the device name such as /dev/hdb)
yum update kernel
32. rpm option to show me the package files
-l
select (followed by the device name such as /dev/hdb)
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
setsebool -P squid_connect_any 1
33. To check status of ftp daemon
service vsftpd status
arted; mklabel k
fdisk -l
yum install mod_ssl squid
34. how to install both mod_ssl and squid packages
e2fsadm
rpm -qc httpd
yum install mod_ssl squid
resize2fs
35. The file that might contain: oldvg - rootvg - etc.
/etc/lvmtab
yum install mod_ssl squid
chcon -R -t httpd_sys_content_t /home/michael/public_html
NameVirtualHost
36. rpm ____ [name of package] to verify the package - once you have manually imported the key
-K
fdisk -l
telnetd : ALL EXCEPT 192.168.1.10
rpm -qc httpd
37. Virtual Host Configuration: Assigns an e-mail address for the specified virtual host.
DocumentRoot
ServerAdmin
mke2fs
e2fsadm
38. for http - if you implement "UserDir public_html" - you need to also ____ /home/michael/public_html if you want /home/michael/public_html accessible
service vsftpd status
DocumentRoot
dumpe2fs
chmod 705
39. 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
mke2fs
ls -Z
rpm -V pam
40. Perform a simple check of the file system. minor-num is x.
rpm -V zip
AllowOverride
LVM
parted; check x
41. 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
fdisk -l
/boot
htpasswd -c /etc/httpd/webpass e
/etc/lvmtab
42. To verify integrity of an rpm package - ____/rpm-gpg/RPM-GPG-KEY-redhat-release
(rpm -q)p file (for rpmfile name)
rpm -ivh --replacepkgs xxxx*
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
dumpe2fs
43. output from ____ is: Disk /dev/cciss/c0d0: 36.4 GB - 36414750720 bytes... plus listing of partitions - for each physical drive
5
rpm -V pam
mke2fs
fdisk -l
44. This line: in /etc/hosts.allow: telnetd : 172.16.72.0/255.255.254.0 is ____
rpm -V zip
rpm -V
nfs
ok
45. The simplest way to install Apache
-K
(rpm -q)p file (for rpmfile name)
yum install httpd
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
46. You just finished editing your /etc/yum.repos.d/*repo file and want yum to use the new info - so you run ____
iptables
grep "[.*]" server1.repo
lvdisplay -D /dev/rootvg/tmplv
yum clean all
47. create the basic cache directories in /var/spool/squid with the following command:
--import file
AllowOverride
squid -z
showmount -e
48. 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 - and PHP. Sharing this
elinks
hkconfig --list httpd
rpm -V pam
ServerTokens OS from http.conf
49. ______ will show me volume info including vg - size - etc of /dev/rootvg/tmplv
lvdisplay -D /dev/rootvg/tmplv
wget (http://devmon.dev.schwab.com/index.html)
select (followed by the device name such as /dev/hdb)
iptables
50. 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
resize2fs /dev/myvg/homevol
lvdisplay -D /dev/rootvg/tmplv
chcon -R -t httpd_sys_content_t /home/michael/public_html
elinks