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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. rpm ____ to import the rpm key for integrity checking
--import file
/etc/httpd/conf/
chmod 701
parted; mklabel k
2. Where to find the main apache config file?
var/ftp/pub
rpm -e zip
/etc/httpd/conf/
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)
3. What parts of rhel6 should be installed to separate volumes?
rpm -qc
dumpe2fs
e2fsadm
/ (root) - /boot and linux swap
4. Are SELinux and iptables-based firewalls are enabled by default?
Yes
LVM
chkconfig vsftpd on
/etc/httpd/conf/
5. ______ will show me volume info including vg - size - etc of /dev/rootvg/tmplv
/etc/init.d/httpd start
lvdisplay -D /dev/rootvg/tmplv
yum install httpd
/etc/squid/
6. To verify integrity of an rpm package - ____/rpm-gpg/RPM-GPG-KEY-redhat-release
setsebool -P htttpd.enable.homedirs 1
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
5
yum -y update
7. 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 -l
chcon -R -t httpd_sys_content_t /home/michael/public_html
service vsftpd status
8. Create a disk label for the partition table called k
resize2fs /dev/myvg/homevol
parted; mklabel k
port 21
ServerTokens
9. Create the basic cache directories in /var/spool/squid with the following command:
(rpm -q)p file (for rpmfile name)
squid -z
/etc/init.d/httpd restart
rpm -V
10. It's much more difficult and much more time-consuming to revise partitions with utilities such as ____ or parted after RHEL is installed.
fdisk
/etc/init.d/httpd restart
/ (root) - /boot and linux swap
iptables -F
11. 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
setsebool -P squid_connect_any 1
chmod 701
rpm -ivh --replacepkgs xxxx*
/etc/vsftpd
12. How to start the vsftp service automatically on boot?
select (followed by the device name such as /dev/hdb)
chkconfig vsftpd on
/etc/init.d/httpd start
-l
13. What service is allowed through the default firewall?
ssh
var/www/html
yum install httpd
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
14. what utility can be used to open port 80?
rpm -V zip
chkconfig httpd on
/etc/init.d/httpd start
system-config-firewall
15. Use parted to display disk geometry for /dev/hda and end up in shell
ServerName
yum install httpd
NameVirtualHost
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:
setup
showmount -e
ServerAdmin
fdisk -l
17. 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
-i
/etc/vsftpd
elinks
18. 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
setsebool -P htttpd.enable.homedirs 1
elinks
var/ftp/pub
19. 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
First boot process
fdisk
/boot
/etc/httpd/conf/
20. If rhel6 is in the /media directory - where is the XML file on that DVD with a database of packages and package groups?
service vsftpd status
/media/repodata
/etc/init.d/httpd start
NameVirtualHost
21. ____ prints superblock and block group information.
rpm -Va
CustomLog
dumpe2fs
/etc/init.d/httpd start
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
iptables
yum clean all
chmod 705
chkconfig --list httpd
23. The rpm ____ option installs the package - if it isn't already installed.
-i
yum install mod_ssl squid
Yes
rpm -qc
24. How do you restart the apache web server?
/etc/init.d/httpd restart
-l
squid -z
CustomLog
25. Where is the config dir for vsftpd?
yum install httpd
/etc/vsftpd
(rpm -q)p file (for rpmfile name)
squid -z
26. Where is the main apache data directory?
chmod 701
var/www/html
chcon -R -t httpd_sys_content_t /home/michael/public_html
chmod 705
27. Where is vsftpd.conf?
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
elinks
showmount -a
/etc/vsftpd
28. 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.
AllowOverride
resize2fs
ServerTokens
rpm -V
29. Logical partitions on a hard drive always start with number ____; on the first PATA/IDE hard drive on a PC - that is hda____.
5
showmount -a
lvdisplay -D /dev/rootvg/tmplv
/etc/squid/
30. 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:
htpasswd -c /etc/httpd/webpass e
ServerAdmin
fdisk -l
port 21
31. If you want to add an iptables command to forward TCP port 80 traffic to TCP port 3128 - you would use the following:
/var/ftp/pub
parted; check x
rpm -V zip
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
32. How to disable the firewall on the current system?
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
iptables -F
-i
lvdisplay -D /dev/rootvg/tmplv
33. What command starts the same menu as the text-mode First Boot process?
htpasswd -c /etc/httpd/webpass e
setup
CustomLog
NameVirtualHost
34. rpm ____ [name of package] to verify the package - once you have manually imported the key
parted; mklabel k
yum install vsftpd
-K
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
35. 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
elinks
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
ServerTokens
DocumentRoot
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)
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
e2fsadm
service vsftpd status
lvextend -L4G /dev/rootvg/tmplv
37. Virtual Host Configuration: Assigns an e-mail address for the specified virtual host.
ErrorLog
yum install httpd
ServerAdmin
LVM
38. SELinux must be configured to Allow HTTPD To Read Home Directories. (Alternatively - activate the httpd_enable_homedirs boolean with the __ command.)
setsebool -P htttpd.enable.homedirs 1
chkconfig vsftpd on
parted; mklabel k
fdisk -l
39. How to install vsftpd?
yum install vsftpd
-i (do not use -U or -F!)
chmod 701
squid -z
40. rpm ____ verifies the installed zip rpm against the rpm database
/etc/squid/
yum clean all
rpm -V zip
-K
41. httpd ___ to update the httpd package - automatically answering yes to all the questions
yum -y update
/ (root) - /boot and linux swap
port 21
rpm -V
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
chmod 701
ls -Z
yum install vsftpd
chcon -R -t httpd_sys_content_t /home/michael/public_html
43. '____ /var/www' will tell you the ACL settings of /var/www
NameVirtualHost
port 21
ls -Z
setsebool -P htttpd.enable.homedirs 1
44. ____ is used for creating ext2 and ext3 file systems
/etc/vsftpd
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
Yes
mke2fs
45. rpm ____ verifies all installed rpms against the rpm database
/boot
iptables -F
rpm -Va
parted; mklabel k
46. Tthe file that might contain: oldvg - rootvg - etc.
nfs
/etc/lvmtab
iptables -F
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
47. The simplest way to install Apache
yum install httpd
/ (root) - /boot and linux swap
fdisk
mke2fs
48. List sboth the client hostname or IP address and mounted directory in host:dir format. This info should not be considered reliable.
tune2fs
showmount -a
lvextend -L4G /dev/rootvg/tmplv
yum install httpd
49. 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
showmount -a
/etc/init.d/vsftpd start
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
lvextend -L4G /dev/rootvg/tmplv
50. If in doubt about package names - you can find them in the ...
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!)
/ (root) - /boot and linux swap
ls -Z