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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. 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
iptables -F
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
/etc/squid/
ServerTokens
2. 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
resize2fs /dev/myvg/homevol
chkconfig httpd on
iptables
-l
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:
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
yum install vsftpd
/media/repodata
mke2fs
4. When an rpm install fails for xxxx because the same version is already apparently installed - run ____ to just install it all again
filesystem type is not ext2 or ext3
rpm -ivh --replacepkgs xxxx*
dumpe2fs
/ (root) - /boot and linux swap
5. Virtual Host Configuration: Specifies an IP address for multiple virtual hosts.
NameVirtualHost
-K
/var/ftp/pub
chkconfig vsftpd on
6. 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
rpm -ivh --replacepkgs xxxx*
telnetd : ALL EXCEPT 192.168.1.10
yum clean all
(rpm -q)p file (for rpmfile name)
7. 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
yum install vsftpd
AllowOverride
/var/ftp/pub
CustomLog
8. What command starts the same menu as the text-mode First Boot process?
rpm -ivh --replacepkgs xxxx*
Yes
setsebool -P htttpd.enable.homedirs 1
setup
9. pam ___ will tell me if any files in the pam package have changed since it was first installed
elinks
rpm -V
LVM
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
10. To verify integrity of an rpm package - ____/rpm-gpg/RPM-GPG-KEY-redhat-release
ErrorLog
/media/repodata
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
select (followed by the device name such as /dev/hdb)
11. 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 ____
(rpm -q)p file (for rpmfile name)
elinks
LVM
var/www/html
12. ____ configuration is not available via text mode RHEL installation.
yum install vsftpd
/ (root) - /boot and linux swap
ServerAdmin
LVM
13. It's much more difficult and much more time-consuming to revise partitions with utilities such as ____ or parted after RHEL is installed.
setup
yum clean all
dumpe2fs
fdisk
14. How to install apache?
telnetd : ALL EXCEPT 192.168.1.10
yum install httpd
setup
iptables -F
15. ______ will show me volume info including vg - size - etc of /dev/rootvg/tmplv
First boot process
/ (root) - /boot and linux swap
wget (http://devmon.dev.schwab.com/index.html)
lvdisplay -D /dev/rootvg/tmplv
16. rpm option to show me the package files
lvdisplay -D /dev/rootvg/tmplv
pirut
yum install vsftpd
-l
17. How to start the vsftp service?
htpasswd -c /etc/httpd/webpass e
5
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
/etc/init.d/vsftpd start
18. How to start the vsftp service automatically on boot?
rpm -V zip
dumpe2fs
e2fsadm
chkconfig vsftpd on
19. _____ will change the size of /dev/rootvg/tmplv to 4 gig
/etc/vsftpd
select (followed by the device name such as /dev/hdb)
ErrorLog
lvextend -L4G /dev/rootvg/tmplv
20. What is the first post installation step?
squid -z
chkconfig httpd on
/etc/httpd/conf/
First boot process
21. What service is allowed through the default firewall?
ssh
-i
telnetd : ALL EXCEPT 192.168.1.10
tune2fs
22. 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
5
dd if=./diskboot.img of=/dev/sdc
ServerTokens
/boot
23. Perform a simple check of the file system. minor-num is x.
parted; check x
setup
var/www/html
rpm -ivh --replacepkgs xxxx*
24. Where to find the main apache config file?
-i
tune2fs
yum clean all
/etc/httpd/conf/
25. ____ is used for creating ext2 and ext3 file systems
parted; check x
yum -y update
-i
mke2fs
26. The simplest way to install Apache
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
yum install httpd
chmod 705
27. Create the basic cache directories in /var/spool/squid with the following command:
/etc/lvmtab
chkconfig httpd on
showmount -e
squid -z
28. How to disable the firewall on the current system?
rpm -V
chcon -R -t httpd_sys_content_t /home/michael/public_html
iptables -F
/etc/init.d/vsftpd start
29. The most straightforward way to make sure Apache starts in bootlevels 3 and 5
/etc/vsftpd
NameVirtualHost
e2fsadm
chkconfig --level 35 httpd on
30. 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
resize2fs
chcon -R -t httpd_sys_content_t /home/michael/public_html
resize2fs /dev/myvg/homevol
showmount -a
31. Where is the vsftp pub dir?
ls -Z
/etc/init.d/vsftpd start
/var/ftp/pub
rpm -Va
32. 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 ____
rpm -e zip
yum install vsftpd
ServerName
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
33. '____ /var/www' will tell you the ACL settings of /var/www
ls -Z
wget (http://devmon.dev.schwab.com/index.html)
fdisk -l
rpm -V
34. I just finished editing my /etc/yum.repos.d/*repo file and want yum to use the new info - so I run ____
lvdisplay -D /dev/rootvg/tmplv
elinks
yum clean all
/media/repodata
35. After extending file system 'homevol' - unmount it and then run _____ to make the filesystem size match the new larger volume.
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
resize2fs /dev/myvg/homevol
squid -z
parted; check x
36. Virtual Host Configuration: Sets a root directory for the virtual host.
iptables -F
fdisk -l
First boot process
DocumentRoot
37. To install both mod_ssl and squid packages
dumpe2fs
yum install mod_ssl squid
ServerAdmin
Yes
38. 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.
-i (do not use -U or -F!)
fdisk
rpm -V
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
39. What parts of rhel6 should be installed to separate volumes?
/etc/vsftpd
chkconfig httpd on
/ (root) - /boot and linux swap
nfs
40. How to make sure apache starts automatically on next reboot?
fdisk -l
First boot process
/etc/vsftpd
chkconfig httpd on
41. 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:
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
showmount -a
htpasswd -c /etc/httpd/webpass e
rpm -Va
42. 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
port 21
nfs
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
/etc/httpd/conf/
43. rpm options include rpm -q [package name] or rpm -qf [path/file] or rmp -q____
setup
grep '[.*]' server1.repo
(rpm -q)p file (for rpmfile name)
yum clean all
44. rpm ____ to import the rpm key for integrity checking
iptables -F
rpm -V zip
First boot process
--import file
45. output from ____ is: Disk /dev/cciss/c0d0: 36.4 GB - 36414750720 bytes... plus listing of partitions - for each physical drive
/etc/init.d/vsftpd start
fdisk -l
setsebool -P squid_connect_any 1
DocumentRoot
46. 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
lvextend -L4G /dev/rootvg/tmplv
/media/repodata
CustomLog
47. How to start apache service?
/etc/init.d/httpd start
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
htpasswd -c /etc/httpd/webpass e
fdisk -l
48. rpm ____ verifies the installed zip rpm against the rpm database
fdisk
rpm -V
telnetd : ALL EXCEPT 192.168.1.10
rpm -V zip
49. what utility can be used to open port 80?
pirut
system-config-firewall
/etc/vsftpd
/etc/httpd/conf/
50. 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
system-config-firewall
yum update kernel
rpm -Va
e2fsadm