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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. How to install vsftpd?
/etc/init.d/httpd start
resize2fs /dev/myvg/homevol
rpm -ivh --replacepkgs xxxx*
yum install vsftpd
2. 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.
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
CustomLog
iptables -F
rpm -qc
3. How to start apache service?
-K
fdisk
/etc/init.d/httpd start
/etc/lvmtab
4. 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 ____
/var/ftp/pub
yum -y update
rpm -e zip
/etc/httpd/conf/
5. Virtual Host Configuration: Specifies an IP address for multiple virtual hosts.
fdisk -l
mke2fs
NameVirtualHost
/etc/vsftpd
6. The simplest way to install Apache
ServerTokens
/var/ftp/pub
yum install httpd
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
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
CustomLog
setsebool -P squid_connect_any 1
AllowOverride
nfs
8. 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
showmount -e
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
9. What parts of rhel6 should be installed to separate volumes?
wget (http://devmon.dev.schwab.com/index.html)
iptables -F
yum update kernel
/ (root) - /boot and linux swap
10. '____ /var/www' will tell you the ACL settings of /var/www
ls -Z
mke2fs
parted; mklabel k
elinks
11. ____ prints superblock and block group information.
iptables -F
dumpe2fs
dd if=./diskboot.img of=/dev/sdc
setsebool -P squid_connect_any 1
12. How to start the vsftp service?
rpm -V
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
/etc/init.d/vsftpd start
yum clean all
13. How to make sure apache starts automatically on next reboot?
lvdisplay -D /dev/rootvg/tmplv
/var/ftp/pub
ErrorLog
chkconfig httpd on
14. 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)
lvdisplay -D /dev/rootvg/tmplv
setsebool -P htttpd.enable.homedirs 1
e2fsadm
/boot
15. 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.
chmod 701
e2fsadm
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
rpm -V
16. rpm ____ verifies all installed rpms against the rpm database
/media/repodata
ErrorLog
rpm -ivh --replacepkgs xxxx*
rpm -Va
17. 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
18. httpd ___ to update the httpd package - automatically answering yes to all the questions
yum -y update
LVM
mke2fs
chkconfig --list httpd
19. Where is the config dir for vsftpd?
chkconfig httpd on
--import file
/etc/vsftpd
yum install httpd
20. For http - if you implement 'UserDir public_html' - you need to also ____ /home/michael if you want /home/michael/public_html accessible
chmod 701
5
service vsftpd status
dd if=./diskboot.img of=/dev/sdc
21. rpm ____ verifies the installed zip rpm against the rpm database
/etc/squid/
rpm -V zip
var/www/html
chkconfig --list httpd
22. How to disable the firewall on the current system?
select (followed by the device name such as /dev/hdb)
/boot
iptables -F
rpm -qc
23. what port needs to be open to access ftp?
port 21
/etc/squid/
resize2fs /dev/myvg/homevol
-K
24. List sboth the client hostname or IP address and mounted directory in host:dir format. This info should not be considered reliable.
NameVirtualHost
showmount -a
setsebool -P squid_connect_any 1
/etc/vsftpd
25. Create the basic cache directories in /var/spool/squid with the following command:
/etc/squid/
squid -z
nfs
select (followed by the device name such as /dev/hdb)
26. 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
ErrorLog
resize2fs
yum -y update
27. 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
CustomLog
chkconfig vsftpd on
service vsftpd status
/boot
28. To install both mod_ssl and squid packages
ErrorLog
yum install mod_ssl squid
port 21
var/www/html
29. To verify integrity of an rpm package - ____/rpm-gpg/RPM-GPG-KEY-redhat-release
showmount -e
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
yum clean all
wget (http://devmon.dev.schwab.com/index.html)
30. If in doubt about package names - you can find them in the ...
/etc/vsftpd
yum install mod_ssl squid
ServerAdmin
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)
31. The most straightforward way to make sure Apache starts in bootlevels 3 and 5
chkconfig --level 35 httpd on
system-config-firewall
rpm -qc
yum install httpd
32. Use parted to display disk geometry for /dev/hda and end up in shell
parted /dev/hda print
squid -z
ssh
/etc/httpd/conf/
33. What is the first post installation step?
First boot process
/etc/init.d/httpd start
rpm -Va
var/ftp/pub
34. SELinux must be configured to Allow HTTPD To Read Home Directories. (Alternatively - activate the httpd_enable_homedirs boolean with the __ command.)
service vsftpd status
NameVirtualHost
/etc/init.d/httpd restart
setsebool -P htttpd.enable.homedirs 1
35. How to start the vsftp service automatically on boot?
parted; check x
var/ftp/pub
chkconfig vsftpd on
--import file
36. 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:
-l
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
select (followed by the device name such as /dev/hdb)
AllowOverride
37. To check status of ftp daemon
fdisk
service vsftpd status
setup
yum install httpd
38. Tthe file that might contain: oldvg - rootvg - etc.
--import file
/etc/lvmtab
mke2fs
ServerName
39. When an rpm install fails for xxxx because the same version is already apparently installed - run ____ to just install it all again
e2fsadm
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
rpm -ivh --replacepkgs xxxx*
chmod 705
40. To select a different device without having to restart parted - use the ____ command . Then - you can view its partition table or configure it.
chcon -R -t httpd_sys_content_t /home/michael/public_html
NameVirtualHost
select (followed by the device name such as /dev/hdb)
/var/ftp/pub
41. You can use the ____ tool after installation to add any package groups that you missed.
pirut
select (followed by the device name such as /dev/hdb)
showmount -e
/etc/init.d/vsftpd start
42. rpm ____ to import the rpm key for integrity checking
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
--import file
select (followed by the device name such as /dev/hdb)
rpm -V
43. I just finished editing my /etc/yum.repos.d/*repo file and want yum to use the new info - so I run ____
yum clean all
rpm -Va
-i
/etc/lvmtab
44. If rhel6 is in the /media directory - where is the XML file on that DVD with a database of packages and package groups?
chkconfig --level 35 httpd on
/ (root) - /boot and linux swap
/media/repodata
mke2fs
45. 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
chcon -R -t httpd_sys_content_t /home/michael/public_html
/etc/vsftpd
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
dd if=./diskboot.img of=/dev/sdc
46. 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:
yum install httpd
yum install vsftpd
setup
htpasswd -c /etc/httpd/webpass e
47. The main Squid configuration file is ____/squid.conf
LVM
parted; check x
/etc/squid/
iptables
48. I ran 'e2label /dev/sda' and got 'bad magic number' Why?
(rpm -q)p file (for rpmfile name)
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
First boot process
filesystem type is not ext2 or ext3
49. Perform a simple check of the file system. minor-num is x.
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
parted; check x
showmount -e
fdisk
50. Are SELinux and iptables-based firewalls are enabled by default?
filesystem type is not ext2 or ext3
--import file
Yes
ErrorLog