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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. rpm ____ verifies the installed zip rpm against the rpm database
fdisk
-i
rpm -V zip
service vsftpd status
2. httpd ___ shows me what config files were installed when the httpd package was installed
rpm -qc
chkconfig --list httpd
/etc/init.d/httpd start
service vsftpd status
3. The most straightforward way to make sure Apache starts in bootlevels 3 and 5
AllowOverride
chkconfig --level 35 httpd on
ErrorLog
ServerAdmin
4. rpm ____ to import the rpm key for integrity checking
--import file
-l
parted; check x
/etc/squid/
5. ____ is used to modify file system parameters
tune2fs
setsebool -P htttpd.enable.homedirs 1
wget (http://devmon.dev.schwab.com/index.html)
grep '[.*]' server1.repo
6. To install both mod_ssl and squid packages
yum install mod_ssl squid
parted /dev/hda print
yum update kernel
/etc/httpd/conf/
7. _____ will change the size of /dev/rootvg/tmplv to 4 gig
parted /dev/hda print
lvextend -L4G /dev/rootvg/tmplv
(rpm -q)p file (for rpmfile name)
yum -y update
8. 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
LVM
NameVirtualHost
setsebool -P htttpd.enable.homedirs 1
telnetd : ALL EXCEPT 192.168.1.10
9. httpd ___ to update the httpd package - automatically answering yes to all the questions
ls -Z
yum -y update
First boot process
ServerName
10. 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:
system-config-firewall
rpm -qc
showmount -e
--import file
11. ____ can expand and shrink ext2 and ext3 file systems
resize2fs
Yes
/var/ftp/pub
ErrorLog
12. 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:
service vsftpd status
system-config-firewall
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
/ (root) - /boot and linux swap
13. For http - if you implement 'UserDir public_html' - you need to also ____ /home/michael if you want /home/michael/public_html accessible
chmod 701
rpm -V
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
ssh
14. Virtual Host Configuration: Creates an error log; the location is based on the DocumentRoot.
-i
ErrorLog
/etc/init.d/httpd restart
chkconfig --list httpd
15. If rhel6 is in the /media directory - where is the XML file on that DVD with a database of packages and package groups?
/media/repodata
ls -Z
showmount -a
chkconfig --list httpd
16. To list under which run levels the web service will start
yum install mod_ssl squid
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)
chkconfig --list httpd
var/ftp/pub
17. Virtual Host Configuration: Names the URL for the virtual host.
rpm -V zip
ServerName
squid -z
/etc/vsftpd
18. Use parted to display disk geometry for /dev/hda and end up in shell
chcon -R -t httpd_sys_content_t /home/michael/public_html
/var/ftp/pub
rpm -V zip
parted /dev/hda print
19. What command starts the same menu as the text-mode First Boot process?
rpm -V zip
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
setup
NameVirtualHost
20. After extending file system 'homevol' - unmount it and then run _____ to make the filesystem size match the new larger volume.
resize2fs /dev/myvg/homevol
lvextend -L4G /dev/rootvg/tmplv
tune2fs
wget (http://devmon.dev.schwab.com/index.html)
21. Are SELinux and iptables-based firewalls are enabled by default?
yum clean all
Yes
ssh
--import file
22. 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)
lvdisplay -D /dev/rootvg/tmplv
/ (root) - /boot and linux swap
showmount -a
CustomLog
23. Virtual Host Configuration: Sets a root directory for the virtual host.
setup
DocumentRoot
yum install httpd
showmount -e
24. SELinux must be configured to Allow HTTPD To Read Home Directories. (Alternatively - activate the httpd_enable_homedirs boolean with the __ command.)
/etc/vsftpd
var/ftp/pub
setsebool -P htttpd.enable.homedirs 1
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
25. what port needs to be open to access ftp?
port 21
ssh
service vsftpd status
chcon -R -t httpd_sys_content_t /home/michael/public_html
26. What parts of rhel6 should be installed to separate volumes?
/ (root) - /boot and linux swap
rpm -V zip
/var/ftp/pub
lvextend -L4G /dev/rootvg/tmplv
27. Create a usb boot disk if the usb stick is /dev/sdc and the file you need is in your present directory
mke2fs
yum -y update
dd if=./diskboot.img of=/dev/sdc
chcon -R -t httpd_sys_content_t /home/michael/public_html
28. ____ configuration is not available via text mode RHEL installation.
dumpe2fs
LVM
/etc/init.d/vsftpd start
grep '[.*]' server1.repo
29. Create the basic cache directories in /var/spool/squid with the following command:
squid -z
yum install vsftpd
rpm -Va
chkconfig --list httpd
30. How to install apache?
yum install httpd
fdisk
/etc/vsftpd
/etc/squid/
31. 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.
chkconfig vsftpd on
iptables -F
/etc/init.d/vsftpd start
nfs
32. 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
iptables
yum install vsftpd
mke2fs
nfs
33. 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
LVM
yum install vsftpd
AllowOverride
34. To check status of ftp daemon
/etc/lvmtab
var/www/html
service vsftpd status
-K
35. This line placed in /etc/hosts.deny denies all services except TFTP to computers in the example.org domain
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
showmount -a
5
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
36. ____ is used for creating ext2 and ext3 file systems
mke2fs
service vsftpd status
yum install vsftpd
rpm -Va
37. rpm option to show me the package files
Yes
grep '[.*]' server1.repo
tune2fs
-l
38. Virtual Host Configuration: Specifies an IP address for multiple virtual hosts.
setsebool -P htttpd.enable.homedirs 1
NameVirtualHost
chcon -R -t httpd_sys_content_t /home/michael/public_html
port 21
39. If in doubt about package names - you can find them in the ...
yum update kernel
ssh
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)
chkconfig vsftpd on
40. ______ will show me volume info including vg - size - etc of /dev/rootvg/tmplv
lvdisplay -D /dev/rootvg/tmplv
First boot process
DocumentRoot
ServerName
41. How to disable the firewall on the current system?
iptables -F
ls -Z
rpm -V
select (followed by the device name such as /dev/hdb)
42. 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 --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
NameVirtualHost
elinks
-K
43. The main Squid configuration file is ____/squid.conf
LVM
/etc/squid/
lvdisplay -D /dev/rootvg/tmplv
AllowOverride
44. what utility can be used to open port 80?
/etc/vsftpd
system-config-firewall
-i
/ (root) - /boot and linux swap
45. 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
setsebool -P htttpd.enable.homedirs 1
yum update kernel
-l
/ (root) - /boot and linux swap
46. Create a disk label for the partition table called k
ServerAdmin
grep '[.*]' server1.repo
parted; mklabel k
nfs
47. To verify integrity of an rpm package - ____/rpm-gpg/RPM-GPG-KEY-redhat-release
NameVirtualHost
/etc/lvmtab
service vsftpd status
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
48. pam ___ will tell me if any files in the pam package have changed since it was first installed
rpm -V
/etc/vsftpd
/ (root) - /boot and linux swap
chkconfig httpd on
49. When an rpm install fails for xxxx because the same version is already apparently installed - run ____ to just install it all again
parted; check x
/etc/lvmtab
ServerTokens
rpm -ivh --replacepkgs xxxx*
50. ____ prints superblock and block group information.
telnetd : ALL EXCEPT 192.168.1.10
rpm -ivh --replacepkgs xxxx*
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)
dumpe2fs