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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
ServerTokens
-l
/etc/vsftpd
yum install vsftpd
2. Where is vsftpd.conf?
-l
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)
/etc/vsftpd
fdisk -l
3. 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
/etc/vsftpd
parted; mklabel k
showmount -a
yum update kernel
4. This line placed in /etc/hosts.deny denies all services except TFTP to computers in the example.org domain
/etc/init.d/httpd start
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
parted; check x
5. Virtual Host Configuration: Creates an error log; the location is based on the DocumentRoot.
ErrorLog
resize2fs
select (followed by the device name such as /dev/hdb)
yum install httpd
6. If in doubt about package names - you can find them in the ...
/etc/init.d/vsftpd start
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)
grep '[.*]' server1.repo
LVM
7. I just finished editing my /etc/yum.repos.d/*repo file and want yum to use the new info - so I run ____
yum install httpd
yum install mod_ssl squid
yum install vsftpd
yum clean all
8. After extending file system 'homevol' - unmount it and then run _____ to make the filesystem size match the new larger volume.
select (followed by the device name such as /dev/hdb)
parted /dev/hda print
resize2fs /dev/myvg/homevol
chcon -R -t httpd_sys_content_t /home/michael/public_html
9. Apache supports security by specifying active ports through the Listen and ____ directives.
var/www/html
NameVirtualHost
ErrorLog
ServerTokens
10. 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 ____
yum install httpd
iptables -F
elinks
var/www/html
11. What is the standard directory for file sharing with vsFTP?
system-config-firewall
var/ftp/pub
/etc/squid/
ssh
12. It's much more difficult and much more time-consuming to revise partitions with utilities such as ____ or parted after RHEL is installed.
dumpe2fs
lvdisplay -D /dev/rootvg/tmplv
filesystem type is not ext2 or ext3
fdisk
13. The main Squid configuration file is ____/squid.conf
-i (do not use -U or -F!)
/etc/httpd/conf/
chkconfig vsftpd on
/etc/squid/
14. rpm ____ verifies the installed zip rpm against the rpm database
/ (root) - /boot and linux swap
rpm -V zip
select (followed by the device name such as /dev/hdb)
--import file
15. The most straightforward way to make sure Apache starts in bootlevels 3 and 5
e2fsadm
system-config-firewall
chkconfig --level 35 httpd on
nfs
16. Virtual Host Configuration: Specifies an IP address for multiple virtual hosts.
NameVirtualHost
yum install httpd
/etc/lvmtab
lvdisplay -D /dev/rootvg/tmplv
17. 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
chmod 701
iptables
parted; mklabel k
--import file
18. ____ can expand and shrink ext2 and ext3 file systems
system-config-firewall
resize2fs
showmount -a
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
19. How to install apache?
tune2fs
yum install httpd
/etc/squid/
yum install vsftpd
20. 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
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
filesystem type is not ext2 or ext3
parted; mklabel k
/boot
21. You can use the ____ tool after installation to add any package groups that you missed.
chkconfig --list httpd
yum clean all
pirut
(rpm -q)p file (for rpmfile name)
22. what port needs to be open to access ftp?
Yes
port 21
/etc/vsftpd
resize2fs /dev/myvg/homevol
23. Perform a simple check of the file system. minor-num is x.
squid -z
parted; check x
mke2fs
setsebool -P htttpd.enable.homedirs 1
24. How do you restart the apache web server?
dumpe2fs
/etc/init.d/httpd restart
AllowOverride
resize2fs
25. Virtual Host Configuration: Names the URL for the virtual host.
setsebool -P htttpd.enable.homedirs 1
ServerName
yum clean all
/media/repodata
26. What parts of rhel6 should be installed to separate volumes?
/ (root) - /boot and linux swap
rpm -ivh --replacepkgs xxxx*
tune2fs
ErrorLog
27. Where to find the main apache config file?
/etc/vsftpd
iptables -F
/etc/init.d/httpd restart
/etc/httpd/conf/
28. If rhel6 is in the /media directory - where is the XML file on that DVD with a database of packages and package groups?
chcon -R -t httpd_sys_content_t /home/michael/public_html
/media/repodata
rpm -e zip
tune2fs
29. Create the basic cache directories in /var/spool/squid with the following command:
telnetd : ALL EXCEPT 192.168.1.10
squid -z
/etc/vsftpd
e2fsadm
30. When an rpm install fails for xxxx because the same version is already apparently installed - run ____ to just install it all again
chkconfig httpd on
yum install mod_ssl squid
-K
rpm -ivh --replacepkgs xxxx*
31. 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
pirut
chcon -R -t httpd_sys_content_t /home/michael/public_html
/etc/lvmtab
yum install mod_ssl squid
32. rpm option to show me the package files
system-config-firewall
-l
wget (http://devmon.dev.schwab.com/index.html)
/etc/squid/
33. What is the first post installation step?
setsebool -P htttpd.enable.homedirs 1
fdisk -l
setsebool -P squid_connect_any 1
First boot process
34. The rpm ____ option installs the package - if it isn't already installed.
resize2fs
/etc/init.d/vsftpd start
ErrorLog
-i
35. Where is the vsftp pub dir?
port 21
elinks
/var/ftp/pub
rpm -ivh --replacepkgs xxxx*
36. Run the ____ command to find the device associated with the USB key.
mke2fs
rpm -qc
ServerName
fdisk -l
37. Virtual Host Configuration: Sets a root directory for the virtual host.
fdisk -l
First boot process
DocumentRoot
parted /dev/hda print
38. 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:
showmount -e
chmod 705
chkconfig httpd on
yum install vsftpd
39. SELinux must be configured to Allow HTTPD To Read Home Directories. (Alternatively - activate the httpd_enable_homedirs boolean with the __ command.)
iptables -F
/etc/httpd/conf/
htpasswd -c /etc/httpd/webpass e
setsebool -P htttpd.enable.homedirs 1
40. 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)
CustomLog
Yes
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
ls -Z
41. For http - if you implement 'UserDir public_html' - you need to also ____ /home/michael if you want /home/michael/public_html accessible
-i
yum -y update
parted; mklabel k
chmod 701
42. 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
setsebool -P htttpd.enable.homedirs 1
resize2fs /dev/myvg/homevol
/etc/httpd/conf/
telnetd : ALL EXCEPT 192.168.1.10
43. I ran 'e2label /dev/sda' and got 'bad magic number' Why?
/etc/init.d/vsftpd start
filesystem type is not ext2 or ext3
ls -Z
e2fsadm
44. Use grep to count how many repositories have been configured in the file server1.repo
45. ____ is used to modify file system parameters
yum install httpd
rpm -qc
tune2fs
--import file
46. After you edit /etc/exports - run service ___ stop...
chcon -R -t httpd_sys_content_t /home/michael/public_html
nfs
5
yum install httpd
47. Create a usb boot disk if the usb stick is /dev/sdc and the file you need is in your present directory
rpm -qc
ServerName
dd if=./diskboot.img of=/dev/sdc
resize2fs /dev/myvg/homevol
48. Logical partitions on a hard drive always start with number ____; on the first PATA/IDE hard drive on a PC - that is hda____.
yum install httpd
tune2fs
5
setup
49. ______ will show me volume info including vg - size - etc of /dev/rootvg/tmplv
/boot
lvdisplay -D /dev/rootvg/tmplv
fdisk
chmod 701
50. rpm options include rpm -q [package name] or rpm -qf [path/file] or rmp -q____
(rpm -q)p file (for rpmfile name)
lvextend -L4G /dev/rootvg/tmplv
fdisk -l
chkconfig vsftpd on