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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. Are SELinux and iptables-based firewalls are enabled by default?
lvdisplay -D /dev/rootvg/tmplv
showmount -e
Yes
-l
2. For http - if you implement 'UserDir public_html' - you need to also ____ /home/michael/public_html if you want /home/michael/public_html accessible
ServerName
chmod 705
AllowOverride
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. I just finished editing my /etc/yum.repos.d/*repo file and want yum to use the new info - so I run ____
ServerAdmin
yum update kernel
-l
yum clean all
4. The main Squid configuration file is ____/squid.conf
/etc/squid/
/boot
ServerName
--import file
5. To install both mod_ssl and squid packages
Yes
yum install mod_ssl squid
select (followed by the device name such as /dev/hdb)
grep '[.*]' server1.repo
6. For http - if you implement 'UserDir public_html' - you need to also ____ /home/michael if you want /home/michael/public_html accessible
yum install httpd
chmod 701
chkconfig httpd on
chmod 705
7. It's much more difficult and much more time-consuming to revise partitions with utilities such as ____ or parted after RHEL is installed.
fdisk
yum install httpd
iptables
chmod 705
8. output from ____ is: Disk /dev/cciss/c0d0: 36.4 GB - 36414750720 bytes... plus listing of partitions - for each physical drive
chmod 705
fdisk -l
resize2fs
ServerAdmin
9. How do you restart the apache web server?
parted /dev/hda print
yum clean all
showmount -e
/etc/init.d/httpd restart
10. ____ is used to modify file system parameters
var/www/html
ServerTokens
tune2fs
chkconfig --level 35 httpd on
11. To verify integrity of an rpm package - ____/rpm-gpg/RPM-GPG-KEY-redhat-release
CustomLog
yum install mod_ssl squid
parted; mklabel k
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
12. ____ configuration is not available via text mode RHEL installation.
parted; check x
LVM
var/ftp/pub
system-config-firewall
13. 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
yum install httpd
yum install vsftpd
chkconfig httpd on
14. Where to find the main apache config file?
squid -z
yum update kernel
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
/etc/httpd/conf/
15. httpd ___ to update the httpd package - automatically answering yes to all the questions
fdisk
yum -y update
DocumentRoot
nfs
16. I ran 'e2label /dev/sda' and got 'bad magic number' Why?
yum install vsftpd
filesystem type is not ext2 or ext3
yum install httpd
chmod 705
17. What parts of rhel6 should be installed to separate volumes?
iptables -F
rpm -V
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
/ (root) - /boot and linux swap
18. 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
dumpe2fs
yum install httpd
var/ftp/pub
19. Create a disk label for the partition table called k
yum clean all
/var/ftp/pub
parted; mklabel k
parted /dev/hda print
20. Where is the vsftp pub dir?
CustomLog
/var/ftp/pub
yum -y update
elinks
21. rpm option to show me the package files
-l
-i
5
/etc/squid/
22. 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
dd if=./diskboot.img of=/dev/sdc
iptables
/etc/init.d/vsftpd start
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
23. How to disable the firewall on the current system?
squid -z
iptables -F
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)
/boot
24. Use parted to display disk geometry for /dev/hda and end up in shell
ErrorLog
rpm -V
parted /dev/hda print
port 21
25. What service is allowed through the default firewall?
ssh
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
rpm -V zip
CustomLog
26. 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
27. rpm ____ to install kernel updates
rpm -qc
ssh
NameVirtualHost
-i (do not use -U or -F!)
28. Run the ____ command to find the device associated with the USB key.
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
/ (root) - /boot and linux swap
chcon -R -t httpd_sys_content_t /home/michael/public_html
fdisk -l
29. rpm ____ [name of package] to verify the package - once you have manually imported the key
ssh
parted; mklabel k
system-config-firewall
-K
30. what utility can be used to open port 80?
system-config-firewall
rpm -V
chcon -R -t httpd_sys_content_t /home/michael/public_html
setsebool -P htttpd.enable.homedirs 1
31. 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
fdisk -l
chmod 705
htpasswd -c /etc/httpd/webpass e
32. The rpm ____ option installs the package - if it isn't already installed.
ssh
-i
/var/ftp/pub
iptables
33. What is the standard directory for file sharing with vsFTP?
resize2fs /dev/myvg/homevol
select (followed by the device name such as /dev/hdb)
var/ftp/pub
resize2fs
34. ___ http://devmon.dev.schwab.com/index.html will make a local copy of the index.html file from devmon
mke2fs
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
/etc/init.d/vsftpd start
wget (http://devmon.dev.schwab.com/index.html)
35. 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 ____
e2fsadm
yum clean all
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
elinks
36. 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)
lvextend -L4G /dev/rootvg/tmplv
fdisk -l
NameVirtualHost
37. 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
/boot
rpm -Va
ServerName
ServerTokens
38. 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:
resize2fs
5
showmount -e
yum clean all
39. 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
squid -z
DocumentRoot
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
ServerAdmin
40. rpm ____ to import the rpm key for integrity checking
/boot
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
--import file
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
41. what port needs to be open to access ftp?
port 21
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)
yum install mod_ssl squid
/etc/httpd/conf/
42. 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
port 21
telnetd : ALL EXCEPT 192.168.1.10
AllowOverride
/etc/lvmtab
43. Create the basic cache directories in /var/spool/squid with the following command:
lvextend -L4G /dev/rootvg/tmplv
squid -z
filesystem type is not ext2 or ext3
/var/ftp/pub
44. 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)
showmount -a
dumpe2fs
grep '[.*]' server1.repo
45. 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)
yum install httpd
e2fsadm
showmount -e
ServerAdmin
46. Virtual Host Configuration: Assigns an e-mail address for the specified virtual host.
ServerAdmin
/ (root) - /boot and linux swap
dumpe2fs
/etc/squid/
47. 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:
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
rpm -V
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
parted; mklabel k
48. SELinux must be configured to Allow HTTPD To Read Home Directories. (Alternatively - activate the httpd_enable_homedirs boolean with the __ command.)
var/www/html
port 21
yum install httpd
setsebool -P htttpd.enable.homedirs 1
49. If you want to add an iptables command to forward TCP port 80 traffic to TCP port 3128 - you would use the following:
system-config-firewall
/ (root) - /boot and linux swap
rpm -V zip
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
50. ____ prints superblock and block group information.
dumpe2fs
rpm -e zip
chmod 705
-l