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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: 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)
yum update kernel
CustomLog
rpm -qc httpd
rpm -V pam
2. If you want to add an iptables command to forward TCP port 80 traffic to TCP port 3128 - you would use the following:
-i
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
fdisk -l
resize2fs
3. when an rpm install fails for xxxx because the same version is already apparently installed - run ____ to just install it all again
rpm -ivh --replacepkgs xxxx*
fdisk
hkconfig --list httpd
bootable partitions
4. after you edit /etc/exports - run service ___ stop...
nfs
AllowOverride
dumpe2fs
rpm -ivh --replacepkgs xxxx*
5. for http - if you implement "UserDir public_html" - you need to also ____ /home/michael/public_html if you want /home/michael/public_html accessible
elinks
parted; check x
showmount -e
chmod 705
6. To verify integrity of an rpm package - ____/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)
rpm -ivh --replacepkgs xxxx*
arted; mklabel k
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
7. _____ will change the size of /dev/rootvg/tmplv to 4 gig
filesystem type is not ext2 or ext3
arted; mklabel k
rpm -ivh --replacepkgs xxxx*
lvextend -L4G /dev/rootvg/tmplv
8. ____ configuration is not available via text mode RHEL installation.
ServerName
setsebool -P htttpd.enable.homedirs 1
hkconfig --list httpd
LVM
9. ;'___ /var/www' will tell you the ACL settings of /var/www
ok
e2fsadm
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
ls -Z
10. To list under which run levels the web service will start
LVM
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
5
hkconfig --list httpd
11. ___ http://devmon.dev.schwab.com/index.html will make a local copy of the index.html file from devmon
(rpm -q)p file (for rpmfile name)
wget (http://devmon.dev.schwab.com/index.html)
-l
lvdisplay -D /dev/rootvg/tmplv
12. You ran "e2label /dev/sda" and got "bad magic number" Why?
filesystem type is not ext2 or ext3
dumpe2fs
yum install mod_ssl squid
ls -Z
13. ____ can expand and shrink ext2 and ext3 file systems
resize2fs
ServerAdmin
chkconfig --level 35 httpd on
rpm -Va
14. 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
hkconfig --list httpd
rpm -V zip
telnetd : ALL EXCEPT 192.168.1.10
pirut
15. To check status of ftp daemon
-i (do not use -U or -F!)
squid -z
service vsftpd status
tune2fs
16. ____ is used to modify file system parameters
DocumentRoot
tune2fs
-i (do not use -U or -F!)
-K
17. logical partitions on a hard drive always start with number ____; on the first PATA/IDE hard drive on a PC - that is hda____.
wget (http://devmon.dev.schwab.com/index.html)
AllowOverride
5
LVM
18. The file that might contain: oldvg - rootvg - etc.
-l
/etc/lvmtab
yum -y update httpd
ErrorLog
19. 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.
ServerAdmin
setsebool -P htttpd.enable.homedirs 1
rpm -V
fdisk -l
20. how to install both mod_ssl and squid packages
chmod 701
DocumentRoot
yum update kernel
yum install mod_ssl squid
21. SELinux must be configured to Allow HTTPD To Read Home Directories. (Alternatively - activate the httpd_enable_homedirs boolean with the __ command.)
--import file
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
showmount -a
setsebool -P htttpd.enable.homedirs 1
22. Run the ____ command to find the device associated with the USB key.
fdisk -l
-i
telnetd : ALL EXCEPT 192.168.1.10
filesystem type is not ext2 or ext3
23. use grep to count how many repositories have been configured in the file server1.repo
chmod 705
yum update kernel
grep "[.*]" server1.repo
tune2fs
24. ___ to update the httpd package - automatically answering yes to all the questions
yum -y update httpd
CustomLog
-K
yum clean all
25. Virtual Host Configuration: Specifies an IP address for multiple virtual hosts.
NameVirtualHost
--import file
rpm -ivh --replacepkgs xxxx*
rpm -qc httpd
26. 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
chmod 705
yum clean all
yum -y update httpd
/boot
27. Virtual Host Configuration: Creates an error log; the location is based on the DocumentRoot.
-i (do not use -U or -F!)
yum update kernel
ErrorLog
NameVirtualHost
28. 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
example
grep "[.*]" server1.repo
tune2fs
29. This line placed in /etc/hosts.deny denies all services except TFTP to computers in the example.org domain
--import file
dd if=./diskboot.img of=/dev/sdc
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
5
30. Virtual Host Configuration: Names the URL for the virtual host.
arted; mklabel k
squid -z
ServerName
example
31. 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:
rpm -V pam
showmount -e
e2fsadm
DocumentRoot
32. ___________ can be on a RAID device
/etc/lvmtab
arted; mklabel k
bootable partitions
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
33. This line: in /etc/hosts.allow: telnetd : 172.16.72.0/255.255.254.0 is ____
/boot
-l
(rpm -q)p file (for rpmfile name)
ok
34. 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
ServerTokens OS from http.conf
rpm -Va
mke2fs
chmod 705
35. The main Squid configuration file is ____/squid.conf
/etc/squid/
showmount -a
hkconfig --list httpd
ServerTokens OS from http.conf
36. 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)
chmod 705
fdisk
e2fsadm
chkconfig --level 35 httpd on
37. 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
NameVirtualHost
/etc/lvmtab
filesystem type is not ext2 or ext3
setsebool -P squid_connect_any 1
38. ____ prints superblock and block group information.
dumpe2fs
5
tune2fs
/boot
39. List sboth the client hostname or IP address and mounted directory in host:dir format. This info should not be considered reliable.
showmount -a
5
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
iptables
40. ______ will show me volume info including vg - size - etc of /dev/rootvg/tmplv
tune2fs
rpm -ivh --replacepkgs xxxx*
lvdisplay -D /dev/rootvg/tmplv
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
41. 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 ____
-l
chmod 705
yum -y update httpd
elinks
42. Virtual Host Configuration: Assigns an e-mail address for the specified virtual host.
ServerAdmin
yum install mod_ssl squid
service vsftpd status
nfs
43. rpm ____ to install kernel updates
fdisk -l
fdisk -l
-i (do not use -U or -F!)
chcon -R -t httpd_sys_content_t /home/michael/public_html
44. You just finished editing your /etc/yum.repos.d/*repo file and want yum to use the new info - so you run ____
yum clean all
ok
dd if=./diskboot.img of=/dev/sdc
--import file
45. The most straightforward way to make sure Apache starts in bootlevels 3 and 5
/etc/squid/
chkconfig --level 35 httpd on
AllowOverride
dumpe2fs
46. The simplest way to install Apache
dd if=./diskboot.img of=/dev/sdc
yum install httpd
rpm -qc httpd
rpm -V zip
47. output from ____ is: Disk /dev/cciss/c0d0: 36.4 GB - 36414750720 bytes... plus listing of partitions - for each physical drive
(rpm -q)p file (for rpmfile name)
fdisk -l
showmount -a
lvdisplay -D /dev/rootvg/tmplv
48. 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:
elinks
ls -Z
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
CustomLog
49. Virtual Host Configuration: Sets a root directory for the virtual host.
DocumentRoot
AllowOverride
ServerAdmin
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
50. To select a different device without having to restart parted - use the ____ command . Then - you can view its partition table or configure it.
setsebool -P htttpd.enable.homedirs 1
NameVirtualHost
lvdisplay -D /dev/rootvg/tmplv
select (followed by the device name such as /dev/hdb)