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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. pam ___ will tell me if any files in the pam package have changed since it was first installed
yum -y update
fdisk -l
rpm -V
First boot process
2. To verify integrity of an rpm package - ____/rpm-gpg/RPM-GPG-KEY-redhat-release
chkconfig vsftpd on
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
grep '[.*]' server1.repo
wget (http://devmon.dev.schwab.com/index.html)
3. I ran 'e2label /dev/sda' and got 'bad magic number' Why?
resize2fs
yum clean all
filesystem type is not ext2 or ext3
pirut
4. ____ can expand and shrink ext2 and ext3 file systems
yum install httpd
fdisk -l
parted; mklabel k
resize2fs
5. what utility can be used to open port 80?
ServerTokens
pirut
select (followed by the device name such as /dev/hdb)
system-config-firewall
6. Run the ____ command to find the device associated with the USB key.
var/ftp/pub
--import file
fdisk -l
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
7. 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)
First boot process
e2fsadm
/etc/init.d/httpd restart
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
8. For http - if you implement 'UserDir public_html' - you need to also ____ /home/michael/public_html if you want /home/michael/public_html accessible
ServerTokens
rpm -qc
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
chmod 705
9. For http - if you implement 'UserDir public_html' - you need to also ____ /home/michael if you want /home/michael/public_html accessible
/etc/vsftpd
chmod 701
yum install vsftpd
ls -Z
10. rpm ____ verifies the installed zip rpm against the rpm database
var/ftp/pub
CustomLog
rpm -V zip
ssh
11. What is the first post installation step?
First boot process
setsebool -P squid_connect_any 1
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
-i (do not use -U or -F!)
12. The simplest way to install Apache
yum install httpd
wget (http://devmon.dev.schwab.com/index.html)
chmod 701
/ (root) - /boot and linux swap
13. How to install vsftpd?
yum install vsftpd
squid -z
/boot
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
14. 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
rpm -V
filesystem type is not ext2 or ext3
/var/ftp/pub
chcon -R -t httpd_sys_content_t /home/michael/public_html
15. Virtual Host Configuration: Sets a root directory for the virtual host.
elinks
DocumentRoot
wget (http://devmon.dev.schwab.com/index.html)
ls -Z
16. Are SELinux and iptables-based firewalls are enabled by default?
/boot
service vsftpd status
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
Yes
17. httpd ___ shows me what config files were installed when the httpd package was installed
yum install mod_ssl squid
rpm -qc
yum -y update
/ (root) - /boot and linux swap
18. Where is vsftpd.conf?
ls -Z
setsebool -P htttpd.enable.homedirs 1
-i
/etc/vsftpd
19. To list under which run levels the web service will start
tune2fs
/etc/vsftpd
yum install vsftpd
chkconfig --list httpd
20. Use parted to display disk geometry for /dev/hda and end up in shell
rpm -ivh --replacepkgs xxxx*
parted /dev/hda print
/etc/vsftpd
filesystem type is not ext2 or ext3
21. If you want to add an iptables command to forward TCP port 80 traffic to TCP port 3128 - you would use the following:
chkconfig vsftpd on
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
chmod 701
ErrorLog
22. 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
23. 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
iptables -F
ErrorLog
ServerTokens
yum update kernel
24. You can use the ____ tool after installation to add any package groups that you missed.
pirut
chkconfig vsftpd on
ServerName
yum install httpd
25. The main Squid configuration file is ____/squid.conf
/etc/squid/
rpm -V
yum -y update
tune2fs
26. ____ is used for creating ext2 and ext3 file systems
chkconfig httpd on
yum install vsftpd
DocumentRoot
mke2fs
27. Virtual Host Configuration: Specifies an IP address for multiple virtual hosts.
NameVirtualHost
select (followed by the device name such as /dev/hdb)
chmod 701
ErrorLog
28. How to make sure apache starts automatically on next reboot?
e2fsadm
yum install httpd
ls -Z
chkconfig httpd on
29. 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
/etc/init.d/httpd restart
iptables -F
AllowOverride
/etc/vsftpd
30. It's much more difficult and much more time-consuming to revise partitions with utilities such as ____ or parted after RHEL is installed.
e2fsadm
rpm -V
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
fdisk
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
telnetd : ALL EXCEPT 192.168.1.10
iptables
rpm -V
dd if=./diskboot.img of=/dev/sdc
32. ____ prints superblock and block group information.
LVM
/etc/httpd/conf/
dumpe2fs
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)
33. httpd ___ to update the httpd package - automatically answering yes to all the questions
yum -y update
e2fsadm
squid -z
LVM
34. rpm ____ [name of package] to verify the package - once you have manually imported the key
yum install httpd
grep '[.*]' server1.repo
-K
rpm -qc
35. 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
dumpe2fs
fdisk -l
chkconfig vsftpd on
36. This line placed in /etc/hosts.deny denies all services except TFTP to computers in the example.org domain
LVM
ErrorLog
(rpm -q)p file (for rpmfile name)
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
37. How to disable the firewall on the current system?
-K
iptables -F
yum install httpd
var/www/html
38. Create a disk label for the partition table called k
-l
parted; mklabel k
parted; check x
chkconfig httpd on
39. rpm ____ to install kernel updates
parted; check x
-i (do not use -U or -F!)
/etc/vsftpd
mke2fs
40. Virtual Host Configuration: Names the URL for the virtual host.
wget (http://devmon.dev.schwab.com/index.html)
/etc/init.d/vsftpd start
/etc/vsftpd
ServerName
41. ______ will show me volume info including vg - size - etc of /dev/rootvg/tmplv
ServerAdmin
elinks
fdisk -l
lvdisplay -D /dev/rootvg/tmplv
42. After extending file system 'homevol' - unmount it and then run _____ to make the filesystem size match the new larger volume.
(rpm -q)p file (for rpmfile name)
chkconfig vsftpd on
var/www/html
resize2fs /dev/myvg/homevol
43. 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
yum install httpd
elinks
setsebool -P squid_connect_any 1
chkconfig vsftpd on
44. ____ is used to modify file system parameters
-i (do not use -U or -F!)
tune2fs
ServerAdmin
fdisk -l
45. rpm option to show me the package files
grep '[.*]' server1.repo
-l
/etc/squid/
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
46. 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
chmod 705
First boot process
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
47. rpm ____ to import the rpm key for integrity checking
ServerTokens
var/ftp/pub
--import file
iptables -F
48. Where to find the main apache config file?
ServerName
rpm -V
/etc/httpd/conf/
fdisk -l
49. I just finished editing my /etc/yum.repos.d/*repo file and want yum to use the new info - so I run ____
rpm -Va
yum clean all
yum -y update
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
50. How do you restart the apache web server?
chmod 705
rpm -Va
dd if=./diskboot.img of=/dev/sdc
/etc/init.d/httpd restart