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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. I just finished editing my /etc/yum.repos.d/*repo file and want yum to use the new info - so I run ____
chkconfig vsftpd on
lvdisplay -D /dev/rootvg/tmplv
chmod 705
yum clean all
2. pam ___ will tell me if any files in the pam package have changed since it was first installed
First boot process
rpm -V
ServerAdmin
rpm -ivh --replacepkgs xxxx*
3. If rhel6 is in the /media directory - where is the XML file on that DVD with a database of packages and package groups?
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
setsebool -P squid_connect_any 1
/media/repodata
tune2fs
4. rpm option to show me the package files
/var/ftp/pub
select (followed by the device name such as /dev/hdb)
-l
fdisk -l
5. Perform a simple check of the file system. minor-num is x.
chmod 705
fdisk -l
var/ftp/pub
parted; check x
6. 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
yum update kernel
var/www/html
-i
7. The most straightforward way to make sure Apache starts in bootlevels 3 and 5
chkconfig --level 35 httpd on
ServerTokens
setsebool -P htttpd.enable.homedirs 1
filesystem type is not ext2 or ext3
8. How to start apache service?
/etc/init.d/httpd start
/ (root) - /boot and linux swap
NameVirtualHost
iptables -F
9. How to start the vsftp service?
select (followed by the device name such as /dev/hdb)
/etc/init.d/vsftpd start
chcon -R -t httpd_sys_content_t /home/michael/public_html
yum clean all
10. The main Squid configuration file is ____/squid.conf
grep '[.*]' server1.repo
First boot process
LVM
/etc/squid/
11. rpm ____ verifies the installed zip rpm against the rpm database
DocumentRoot
rpm -V zip
-i (do not use -U or -F!)
yum install mod_ssl squid
12. This line placed in /etc/hosts.deny denies all services except TFTP to computers in the example.org domain
ServerAdmin
yum install vsftpd
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
rpm -V zip
13. What service is allowed through the default firewall?
ssh
chkconfig --level 35 httpd on
yum update kernel
parted; check x
14. SELinux must be configured to Allow HTTPD To Read Home Directories. (Alternatively - activate the httpd_enable_homedirs boolean with the __ command.)
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
elinks
setsebool -P htttpd.enable.homedirs 1
showmount -e
15. what port needs to be open to access ftp?
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
port 21
nfs
NameVirtualHost
16. rpm ____ [name of package] to verify the package - once you have manually imported the key
ServerName
-i
setup
-K
17. ____ prints superblock and block group information.
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
--import file
dumpe2fs
fdisk
18. Create the basic cache directories in /var/spool/squid with the following command:
select (followed by the device name such as /dev/hdb)
rpm -e zip
squid -z
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
19. 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
DocumentRoot
setup
chcon -R -t httpd_sys_content_t /home/michael/public_html
filesystem type is not ext2 or ext3
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
rpm -Va
fdisk -l
lvdisplay -D /dev/rootvg/tmplv
21. 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:
ls -Z
--import file
htpasswd -c /etc/httpd/webpass e
fdisk
22. If in doubt about package names - you can find them in the ...
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)
yum clean all
/ (root) - /boot and linux swap
chkconfig httpd on
23. 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 httpd on
dd if=./diskboot.img of=/dev/sdc
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
wget (http://devmon.dev.schwab.com/index.html)
24. To install both mod_ssl and squid packages
e2fsadm
/ (root) - /boot and linux swap
yum install mod_ssl squid
/etc/vsftpd
25. For http - if you implement 'UserDir public_html' - you need to also ____ /home/michael if you want /home/michael/public_html accessible
ServerAdmin
fdisk -l
-i
chmod 701
26. rpm ____ to install kernel updates
-i (do not use -U or -F!)
setsebool -P htttpd.enable.homedirs 1
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)
ServerName
27. What command starts the same menu as the text-mode First Boot process?
/ (root) - /boot and linux swap
iptables
ls -Z
setup
28. 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
-l
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
resize2fs /dev/myvg/homevol
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
29. The rpm ____ option installs the package - if it isn't already installed.
rpm -Va
-i
chkconfig httpd on
fdisk -l
30. output from ____ is: Disk /dev/cciss/c0d0: 36.4 GB - 36414750720 bytes... plus listing of partitions - for each physical drive
fdisk -l
CustomLog
service vsftpd status
rpm -ivh --replacepkgs xxxx*
31. Where is the vsftp pub dir?
/var/ftp/pub
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
yum install vsftpd
LVM
32. The simplest way to install Apache
/etc/init.d/httpd restart
nfs
yum install httpd
iptables -F
33. 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
pirut
yum install mod_ssl squid
34. Where is the config dir for vsftpd?
/etc/vsftpd
fdisk -l
lvextend -L4G /dev/rootvg/tmplv
rpm -e zip
35. How to disable the firewall on the current system?
chkconfig vsftpd on
iptables -F
/var/ftp/pub
fdisk -l
36. ____ configuration is not available via text mode RHEL installation.
CustomLog
rpm -ivh --replacepkgs xxxx*
LVM
setup
37. Are SELinux and iptables-based firewalls are enabled by default?
port 21
ServerName
squid -z
Yes
38. 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
/etc/init.d/httpd restart
chkconfig httpd on
/etc/vsftpd
39. Create a disk label for the partition table called k
showmount -e
tune2fs
parted; mklabel k
5
40. 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
ServerTokens
yum install httpd
-l
41. rpm ____ verifies all installed rpms against the rpm database
chmod 705
parted; mklabel k
rpm -V zip
rpm -Va
42. 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)
fdisk -l
e2fsadm
-l
ssh
43. 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:
-K
ls -Z
/etc/vsftpd
showmount -e
44. 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
setup
/boot
5
lvextend -L4G /dev/rootvg/tmplv
45. rpm options include rpm -q [package name] or rpm -qf [path/file] or rmp -q____
yum install mod_ssl squid
/var/ftp/pub
(rpm -q)p file (for rpmfile name)
telnetd : ALL EXCEPT 192.168.1.10
46. Where is vsftpd.conf?
/etc/vsftpd
LVM
var/ftp/pub
-K
47. ______ will show me volume info including vg - size - etc of /dev/rootvg/tmplv
yum install mod_ssl squid
yum install httpd
port 21
lvdisplay -D /dev/rootvg/tmplv
48. It's much more difficult and much more time-consuming to revise partitions with utilities such as ____ or parted after RHEL is installed.
parted; check x
-K
service vsftpd status
fdisk
49. 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
iptables -F
iptables
rpm -e zip
50. To verify integrity of an rpm package - ____/rpm-gpg/RPM-GPG-KEY-redhat-release
resize2fs /dev/myvg/homevol
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
rpm -ivh --replacepkgs xxxx*