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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. 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
wget (http://devmon.dev.schwab.com/index.html)
/ (root) - /boot and linux swap
AllowOverride
iptables -F
2. '____ /var/www' will tell you the ACL settings of /var/www
iptables -F
chkconfig --list httpd
ls -Z
NameVirtualHost
3. 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:
rpm -V
htpasswd -c /etc/httpd/webpass e
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
chkconfig httpd on
4. You can use the ____ tool after installation to add any package groups that you missed.
elinks
AllowOverride
pirut
showmount -e
5. Where to find the main apache config file?
/etc/httpd/conf/
5
port 21
yum install vsftpd
6. 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:
port 21
chmod 705
setup
htpasswd -c /etc/httpd/webpass e
7. How to start apache service?
service vsftpd status
-l
CustomLog
/etc/init.d/httpd start
8. 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*
elinks
fdisk
rpm -e zip
9. 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
rpm -V
iptables
yum -y update
5
10. Virtual Host Configuration: Assigns an e-mail address for the specified virtual host.
yum clean all
-i (do not use -U or -F!)
chmod 705
ServerAdmin
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
First boot process
ssh
/etc/httpd/conf/
12. httpd ___ to update the httpd package - automatically answering yes to all the questions
/etc/init.d/httpd restart
ServerAdmin
Yes
yum -y update
13. How to start the vsftp service automatically on boot?
/media/repodata
chkconfig --list httpd
chkconfig vsftpd on
iptables -F
14. For http - if you implement 'UserDir public_html' - you need to also ____ /home/michael if you want /home/michael/public_html accessible
iptables
chmod 701
/etc/lvmtab
/etc/init.d/httpd restart
15. What command starts the same menu as the text-mode First Boot process?
setsebool -P squid_connect_any 1
ServerName
setup
ServerAdmin
16. rpm ____ verifies the installed zip rpm against the rpm database
grep '[.*]' server1.repo
select (followed by the device name such as /dev/hdb)
e2fsadm
rpm -V zip
17. Use grep to count how many repositories have been configured in the file server1.repo
18. rpm ____ verifies all installed rpms against the rpm database
rpm -ivh --replacepkgs xxxx*
yum install vsftpd
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)
rpm -Va
19. 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 ____
service vsftpd status
elinks
dd if=./diskboot.img of=/dev/sdc
telnetd : ALL EXCEPT 192.168.1.10
20. After extending file system 'homevol' - unmount it and then run _____ to make the filesystem size match the new larger volume.
AllowOverride
LVM
resize2fs /dev/myvg/homevol
Yes
21. pam ___ will tell me if any files in the pam package have changed since it was first installed
rpm -Va
rpm -V
pirut
yum -y update
22. What parts of rhel6 should be installed to separate volumes?
yum clean all
/ (root) - /boot and linux swap
parted; check x
/media/repodata
23. What service is allowed through the default firewall?
ssh
yum install vsftpd
fdisk -l
CustomLog
24. rpm option to show me the package files
CustomLog
AllowOverride
/media/repodata
-l
25. Where is the main apache data directory?
/ (root) - /boot and linux swap
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
/boot
var/www/html
26. httpd ___ shows me what config files were installed when the httpd package was installed
rpm -V zip
rpm -qc
resize2fs
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
27. Create a usb boot disk if the usb stick is /dev/sdc and the file you need is in your present directory
chkconfig vsftpd on
/etc/squid/
dd if=./diskboot.img of=/dev/sdc
ServerAdmin
28. How to disable the firewall on the current system?
Yes
iptables -F
/etc/init.d/vsftpd start
DocumentRoot
29. Use parted to display disk geometry for /dev/hda and end up in shell
showmount -e
yum install mod_ssl squid
parted /dev/hda print
dumpe2fs
30. rpm options include rpm -q [package name] or rpm -qf [path/file] or rmp -q____
chkconfig --list httpd
/etc/httpd/conf/
wget (http://devmon.dev.schwab.com/index.html)
(rpm -q)p file (for rpmfile name)
31. This line placed in /etc/hosts.deny denies all services except TFTP to computers in the example.org domain
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)
yum install httpd
Yes
32. Perform a simple check of the file system. minor-num is x.
parted; check x
port 21
rpm -V
yum update kernel
33. Virtual Host Configuration: Specifies an IP address for multiple virtual hosts.
setsebool -P htttpd.enable.homedirs 1
NameVirtualHost
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
rpm -V
34. 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
rpm -qc
fdisk -l
/etc/vsftpd
ServerTokens
35. To list under which run levels the web service will start
e2fsadm
parted; mklabel k
yum install mod_ssl squid
chkconfig --list httpd
36. List sboth the client hostname or IP address and mounted directory in host:dir format. This info should not be considered reliable.
fdisk -l
var/ftp/pub
rpm -V
showmount -a
37. It's much more difficult and much more time-consuming to revise partitions with utilities such as ____ or parted after RHEL is installed.
e2fsadm
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
fdisk
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
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
iptables -F
squid -z
lvextend -L4G /dev/rootvg/tmplv
39. 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.
rpm -V
squid -z
chmod 705
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
40. To verify integrity of an rpm package - ____/rpm-gpg/RPM-GPG-KEY-redhat-release
ServerName
chkconfig --list httpd
NameVirtualHost
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
41. Tthe file that might contain: oldvg - rootvg - etc.
/etc/lvmtab
yum update kernel
CustomLog
yum install httpd
42. I just ran rpm -ivh zip-2.3-8.i386.rpm .. whooops - now I don't want this on my system so to get it off via rpm I type ____
nfs
fdisk
dd if=./diskboot.img of=/dev/sdc
rpm -e zip
43. Apache supports security by specifying active ports through the Listen and ____ directives.
fdisk -l
tune2fs
/etc/lvmtab
NameVirtualHost
44. Virtual Host Configuration: Sets a root directory for the virtual host.
NameVirtualHost
chkconfig --level 35 httpd on
yum -y update
DocumentRoot
45. ____ prints superblock and block group information.
ErrorLog
/etc/vsftpd
dumpe2fs
system-config-firewall
46. ____ is used for creating ext2 and ext3 file systems
yum -y update
/etc/httpd/conf/
mke2fs
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
47. Are SELinux and iptables-based firewalls are enabled by default?
chkconfig httpd on
rpm -V zip
Yes
NameVirtualHost
48. 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
setsebool -P htttpd.enable.homedirs 1
rpm -qc
fdisk
49. How to install vsftpd?
yum install vsftpd
fdisk
dd if=./diskboot.img of=/dev/sdc
select (followed by the device name such as /dev/hdb)
50. _____ will change the size of /dev/rootvg/tmplv to 4 gig
lvextend -L4G /dev/rootvg/tmplv
rpm -V
/etc/vsftpd
/var/ftp/pub