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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 ____ to import the rpm key for integrity checking
grep '[.*]' server1.repo
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
chkconfig httpd on
--import file
2. You can use the ____ tool after installation to add any package groups that you missed.
pirut
iptables -F
NameVirtualHost
chmod 701
3. what port needs to be open to access ftp?
telnetd : ALL EXCEPT 192.168.1.10
chmod 705
port 21
-l
4. Use grep to count how many repositories have been configured in the file server1.repo
5. If you want to add an iptables command to forward TCP port 80 traffic to TCP port 3128 - you would use the following:
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
yum install httpd
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
chmod 701
6. output from ____ is: Disk /dev/cciss/c0d0: 36.4 GB - 36414750720 bytes... plus listing of partitions - for each physical drive
-i
resize2fs
fdisk -l
/etc/init.d/vsftpd start
7. What service is allowed through the default firewall?
ssh
squid -z
/etc/squid/
var/ftp/pub
8. Apache supports security by specifying active ports through the Listen and ____ directives.
filesystem type is not ext2 or ext3
fdisk -l
NameVirtualHost
yum install vsftpd
9. What is the standard directory for file sharing with vsFTP?
chcon -R -t httpd_sys_content_t /home/michael/public_html
-K
var/ftp/pub
setsebool -P squid_connect_any 1
10. For http - if you implement 'UserDir public_html' - you need to also ____ /home/michael/public_html if you want /home/michael/public_html accessible
chmod 705
NameVirtualHost
iptables
rpm -V zip
11. Are SELinux and iptables-based firewalls are enabled by default?
ServerAdmin
Yes
(rpm -q)p file (for rpmfile name)
htpasswd -c /etc/httpd/webpass e
12. This line placed in /etc/hosts.deny denies all services except TFTP to computers in the example.org domain
iptables -F
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
/etc/squid/
resize2fs /dev/myvg/homevol
13. rpm ____ [name of package] to verify the package - once you have manually imported the key
DocumentRoot
-K
/etc/vsftpd
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
14. rpm ____ to install kernel updates
-i (do not use -U or -F!)
mke2fs
chmod 705
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)
15. Logical partitions on a hard drive always start with number ____; on the first PATA/IDE hard drive on a PC - that is hda____.
5
mke2fs
port 21
iptables -F
16. 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:
chkconfig vsftpd on
yum -y update
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
chkconfig --level 35 httpd on
17. Create the basic cache directories in /var/spool/squid with the following command:
squid -z
var/www/html
/etc/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)
18. The main Squid configuration file is ____/squid.conf
/etc/squid/
rpm -V
parted; check x
chcon -R -t httpd_sys_content_t /home/michael/public_html
19. 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.
-l
iptables -F
squid -z
-i
20. Where is the main apache data directory?
var/www/html
/boot
port 21
/etc/init.d/vsftpd start
21. Tthe file that might contain: oldvg - rootvg - etc.
/etc/lvmtab
-i (do not use -U or -F!)
showmount -a
parted; check x
22. The rpm ____ option installs the package - if it isn't already installed.
port 21
-i
First boot process
yum -y update
23. What parts of rhel6 should be installed to separate volumes?
/ (root) - /boot and linux swap
lvdisplay -D /dev/rootvg/tmplv
--import file
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
24. rpm options include rpm -q [package name] or rpm -qf [path/file] or rmp -q____
yum clean all
(rpm -q)p file (for rpmfile name)
/etc/lvmtab
yum install mod_ssl squid
25. 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
resize2fs /dev/myvg/homevol
-K
select (followed by the device name such as /dev/hdb)
setsebool -P squid_connect_any 1
26. 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
fdisk -l
dumpe2fs
/etc/squid/
AllowOverride
27. 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.
port 21
/etc/httpd/conf/
rpm -V
/etc/init.d/vsftpd start
28. Virtual Host Configuration: Creates an error log; the location is based on the DocumentRoot.
ErrorLog
dumpe2fs
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
ServerName
29. 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
parted /dev/hda print
port 21
/boot
lvdisplay -D /dev/rootvg/tmplv
30. pam ___ will tell me if any files in the pam package have changed since it was first installed
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
chkconfig --level 35 httpd on
rpm -V
rpm -qc
31. httpd ___ shows me what config files were installed when the httpd package was installed
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
rpm -qc
parted; mklabel k
mke2fs
32. 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
dd if=./diskboot.img of=/dev/sdc
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)
chcon -R -t httpd_sys_content_t /home/michael/public_html
33. When an rpm install fails for xxxx because the same version is already apparently installed - run ____ to just install it all again
elinks
rpm -ivh --replacepkgs xxxx*
setsebool -P squid_connect_any 1
-i
34. _____ will change the size of /dev/rootvg/tmplv to 4 gig
fdisk -l
First boot process
lvextend -L4G /dev/rootvg/tmplv
parted; mklabel k
35. To install both mod_ssl and squid packages
pirut
(rpm -q)p file (for rpmfile name)
ls -Z
yum install mod_ssl squid
36. Virtual Host Configuration: Specifies an IP address for multiple virtual hosts.
iptables -F
e2fsadm
NameVirtualHost
chcon -R -t httpd_sys_content_t /home/michael/public_html
37. 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
setup
-l
iptables
yum install vsftpd
38. ____ is used for creating ext2 and ext3 file systems
rpm -V
nfs
CustomLog
mke2fs
39. Virtual Host Configuration: Assigns an e-mail address for the specified virtual host.
rpm -ivh --replacepkgs xxxx*
fdisk -l
grep '[.*]' server1.repo
ServerAdmin
40. 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
rpm -V
iptables -F
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
yum update kernel
41. How to disable the firewall on the current system?
port 21
yum -y update
/var/ftp/pub
iptables -F
42. List sboth the client hostname or IP address and mounted directory in host:dir format. This info should not be considered reliable.
tune2fs
wget (http://devmon.dev.schwab.com/index.html)
showmount -a
fdisk -l
43. What command starts the same menu as the text-mode First Boot process?
setup
parted /dev/hda print
rpm -V
/etc/vsftpd
44. 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 ____
parted /dev/hda print
chmod 701
elinks
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
45. Where to find the main apache config file?
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
/etc/httpd/conf/
rpm -V
chkconfig vsftpd on
46. To list under which run levels the web service will start
yum install httpd
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
yum install mod_ssl squid
47. Where is vsftpd.conf?
/etc/vsftpd
rpm -V zip
ServerName
parted /dev/hda print
48. Use parted to display disk geometry for /dev/hda and end up in shell
parted /dev/hda print
chkconfig httpd on
/media/repodata
yum install httpd
49. How to make sure apache starts automatically on next reboot?
NameVirtualHost
/etc/init.d/vsftpd start
chkconfig httpd on
yum install httpd
50. ____ prints superblock and block group information.
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
dumpe2fs
First boot process
/etc/init.d/vsftpd start