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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. To check status of ftp daemon
service vsftpd status
htpasswd -c /etc/httpd/webpass e
First boot process
iptables -F
2. What command starts the same menu as the text-mode First Boot process?
elinks
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
setup
parted; check x
3. When an rpm install fails for xxxx because the same version is already apparently installed - run ____ to just install it all again
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
ServerAdmin
rpm -ivh --replacepkgs xxxx*
-i
4. How to make sure apache starts automatically on next reboot?
showmount -e
chkconfig httpd on
elinks
5
5. Create the basic cache directories in /var/spool/squid with the following command:
yum update kernel
select (followed by the device name such as /dev/hdb)
squid -z
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)
6. 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)
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
First boot process
lvdisplay -D /dev/rootvg/tmplv
7. Perform a simple check of the file system. minor-num is x.
yum install vsftpd
setsebool -P squid_connect_any 1
telnetd : ALL EXCEPT 192.168.1.10
parted; check x
8. rpm option to show me the package files
resize2fs
iptables -F
iptables
-l
9. The simplest way to install Apache
yum install httpd
NameVirtualHost
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
pirut
10. pam ___ will tell me if any files in the pam package have changed since it was first installed
rpm -qc
rpm -V
/etc/init.d/httpd restart
/etc/init.d/httpd start
11. 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
/etc/init.d/vsftpd start
resize2fs /dev/myvg/homevol
rpm -ivh --replacepkgs xxxx*
12. Where is vsftpd.conf?
lvdisplay -D /dev/rootvg/tmplv
/etc/vsftpd
ServerName
e2fsadm
13. Use grep to count how many repositories have been configured in the file server1.repo
Warning
: Invalid argument supplied for foreach() in
/var/www/html/basicversity.com/show_quiz.php
on line
183
14. Create a usb boot disk if the usb stick is /dev/sdc and the file you need is in your present directory
rpm -V zip
rpm -Va
dd if=./diskboot.img of=/dev/sdc
pirut
15. List sboth the client hostname or IP address and mounted directory in host:dir format. This info should not be considered reliable.
showmount -a
lvextend -L4G /dev/rootvg/tmplv
var/www/html
yum install httpd
16. The most straightforward way to make sure Apache starts in bootlevels 3 and 5
chkconfig --level 35 httpd on
-i (do not use -U or -F!)
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
tune2fs
17. 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 ____
showmount -a
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
elinks
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
18. Are SELinux and iptables-based firewalls are enabled by default?
rpm -e zip
rpm -V
Yes
ErrorLog
19. If you want to add an iptables command to forward TCP port 80 traffic to TCP port 3128 - you would use the following:
dd if=./diskboot.img of=/dev/sdc
setup
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
iptables -F
20. The rpm ____ option installs the package - if it isn't already installed.
-i
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)
fdisk -l
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
21. Tthe file that might contain: oldvg - rootvg - etc.
wget (http://devmon.dev.schwab.com/index.html)
ErrorLog
ls -Z
/etc/lvmtab
22. If in doubt about package names - you can find them in the ...
/var/ftp/pub
service vsftpd status
-l
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)
23. Virtual Host Configuration: Specifies an IP address for multiple virtual hosts.
chmod 701
NameVirtualHost
First boot process
grep '[.*]' server1.repo
24. What service is allowed through the default firewall?
service vsftpd status
ssh
-i
LVM
25. To list under which run levels the web service will start
setsebool -P htttpd.enable.homedirs 1
rpm -V zip
chkconfig --list httpd
/etc/init.d/httpd start
26. rpm options include rpm -q [package name] or rpm -qf [path/file] or rmp -q____
--import file
yum clean all
var/ftp/pub
(rpm -q)p file (for rpmfile name)
27. 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
CustomLog
setsebool -P htttpd.enable.homedirs 1
yum update kernel
AllowOverride
28. Logical partitions on a hard drive always start with number ____; on the first PATA/IDE hard drive on a PC - that is hda____.
5
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
setup
ssh
29. 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
setsebool -P htttpd.enable.homedirs 1
ServerTokens
chkconfig --list httpd
NameVirtualHost
30. Virtual Host Configuration: Creates an error log; the location is based on the DocumentRoot.
ErrorLog
fdisk
telnetd : ALL EXCEPT 192.168.1.10
iptables
31. 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
squid -z
showmount -a
yum update kernel
telnetd : ALL EXCEPT 192.168.1.10
32. The default Red Hat Enterprise Linux firewall blocks access to an NFS server. While inelegant - the following command 'flushes -' or turns off - the standard Linux firewall from the local computer.
iptables -F
setsebool -P htttpd.enable.homedirs 1
ssh
/ (root) - /boot and linux swap
33. 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.
showmount -a
rpm -V
setsebool -P squid_connect_any 1
fdisk -l
34. 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
resize2fs
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
/boot
35. ____ prints superblock and block group information.
/etc/vsftpd
pirut
squid -z
dumpe2fs
36. What is the first post installation step?
setup
-i (do not use -U or -F!)
setsebool -P htttpd.enable.homedirs 1
First boot process
37. ___ http://devmon.dev.schwab.com/index.html will make a local copy of the index.html file from devmon
telnetd : ALL EXCEPT 192.168.1.10
wget (http://devmon.dev.schwab.com/index.html)
fdisk -l
system-config-firewall
38. For http - if you implement 'UserDir public_html' - you need to also ____ /home/michael if you want /home/michael/public_html accessible
NameVirtualHost
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)
/etc/init.d/httpd restart
chmod 701
39. After extending file system 'homevol' - unmount it and then run _____ to make the filesystem size match the new larger volume.
resize2fs /dev/myvg/homevol
e2fsadm
yum install vsftpd
system-config-firewall
40. ____ is used for creating ext2 and ext3 file systems
chkconfig vsftpd on
setsebool -P squid_connect_any 1
ssh
mke2fs
41. Virtual Host Configuration: Names the URL for the virtual host.
yum clean all
ServerName
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
/etc/squid/
42. What is the standard directory for file sharing with vsFTP?
ServerName
/ (root) - /boot and linux swap
var/ftp/pub
First boot process
43. 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
fdisk
-K
-l
44. How to start apache service?
/etc/init.d/httpd start
iptables -F
var/www/html
ServerName
45. ______ will show me volume info including vg - size - etc of /dev/rootvg/tmplv
lvdisplay -D /dev/rootvg/tmplv
ServerAdmin
service vsftpd status
telnetd : ALL EXCEPT 192.168.1.10
46. How to disable the firewall on the current system?
iptables -F
(rpm -q)p file (for rpmfile name)
nfs
lvextend -L4G /dev/rootvg/tmplv
47. 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
ls -Z
iptables
rpm -V zip
elinks
48. 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)
setup
setsebool -P htttpd.enable.homedirs 1
CustomLog
e2fsadm
49. httpd ___ to update the httpd package - automatically answering yes to all the questions
NameVirtualHost
-i (do not use -U or -F!)
yum -y update
/etc/init.d/httpd start
50. what port needs to be open to access ftp?
port 21
/etc/vsftpd
AllowOverride
/etc/squid/