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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. pam ___ will tell me if any files in the pam package have changed since it was first installed
rpm -V
ServerName
fdisk -l
mke2fs
2. The simplest way to install Apache
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
yum install httpd
iptables -F
rpm -e zip
3. After you edit /etc/exports - run service ___ stop...
-i
yum update kernel
/var/ftp/pub
nfs
4. What parts of rhel6 should be installed to separate volumes?
setsebool -P squid_connect_any 1
ErrorLog
/ (root) - /boot and linux swap
ssh
5. 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 ____
CustomLog
Yes
elinks
e2fsadm
6. 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
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
htpasswd -c /etc/httpd/webpass e
lvdisplay -D /dev/rootvg/tmplv
parted; check x
7. 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)
yum install httpd
e2fsadm
/etc/vsftpd
/etc/lvmtab
8. 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 vsftpd
/etc/squid/
lvextend -L4G /dev/rootvg/tmplv
5
9. ____ is used for creating ext2 and ext3 file systems
mke2fs
iptables
showmount -a
NameVirtualHost
10. Apache supports security by specifying active ports through the Listen and ____ directives.
filesystem type is not ext2 or ext3
NameVirtualHost
var/www/html
yum install httpd
11. To install both mod_ssl and squid packages
/ (root) - /boot and linux swap
/etc/lvmtab
yum install mod_ssl squid
yum install httpd
12. How to start apache service?
yum -y update
/etc/init.d/httpd start
dd if=./diskboot.img of=/dev/sdc
filesystem type is not ext2 or ext3
13. 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 -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
/media/repodata
port 21
LVM
14. If you want to add an iptables command to forward TCP port 80 traffic to TCP port 3128 - you would use the following:
select (followed by the device name such as /dev/hdb)
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
parted; mklabel k
/etc/httpd/conf/
15. How to start the vsftp service automatically on boot?
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
rpm -Va
showmount -e
chkconfig vsftpd on
16. 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)
wget (http://devmon.dev.schwab.com/index.html)
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
17. What is the standard directory for file sharing with vsFTP?
ErrorLog
chcon -R -t httpd_sys_content_t /home/michael/public_html
var/ftp/pub
squid -z
18. 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.
rpm -V
/etc/vsftpd
iptables -F
var/www/html
19. rpm option to show me the package files
/etc/init.d/httpd start
-l
yum clean all
5
20. ____ can expand and shrink ext2 and ext3 file systems
resize2fs
filesystem type is not ext2 or ext3
lvdisplay -D /dev/rootvg/tmplv
wget (http://devmon.dev.schwab.com/index.html)
21. The main Squid configuration file is ____/squid.conf
yum install httpd
-i
telnetd : ALL EXCEPT 192.168.1.10
/etc/squid/
22. rpm ____ verifies the installed zip rpm against the rpm database
port 21
/etc/httpd/conf/
/boot
rpm -V zip
23. rpm ____ to import the rpm key for integrity checking
yum -y update
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
/etc/init.d/httpd start
--import file
24. How to install vsftpd?
yum install vsftpd
telnetd : ALL EXCEPT 192.168.1.10
chcon -R -t httpd_sys_content_t /home/michael/public_html
/etc/httpd/conf/
25. what port needs to be open to access ftp?
-K
port 21
ssh
telnetd : ALL EXCEPT 192.168.1.10
26. 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 ____
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)
Yes
rpm -e zip
27. _____ will change the size of /dev/rootvg/tmplv to 4 gig
AllowOverride
yum install httpd
setsebool -P squid_connect_any 1
lvextend -L4G /dev/rootvg/tmplv
28. 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
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
lvextend -L4G /dev/rootvg/tmplv
yum update kernel
pirut
29. Use parted to display disk geometry for /dev/hda and end up in shell
port 21
parted /dev/hda print
/etc/init.d/httpd start
resize2fs /dev/myvg/homevol
30. 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
/boot
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
rpm -qc
ServerAdmin
31. 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 start
/etc/lvmtab
NameVirtualHost
32. httpd ___ shows me what config files were installed when the httpd package was installed
/etc/lvmtab
select (followed by the device name such as /dev/hdb)
rpm -qc
service vsftpd status
33. Virtual Host Configuration: Assigns an e-mail address for the specified virtual host.
iptables
parted; check x
ServerAdmin
htpasswd -c /etc/httpd/webpass e
34. Perform a simple check of the file system. minor-num is x.
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
chmod 705
parted; check x
yum install httpd
35. The most straightforward way to make sure Apache starts in bootlevels 3 and 5
chkconfig --level 35 httpd on
yum clean all
lvextend -L4G /dev/rootvg/tmplv
mke2fs
36. Where is the vsftp pub dir?
/var/ftp/pub
rpm -V
service vsftpd status
yum install httpd
37. How to disable the firewall on the current system?
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)
(rpm -q)p file (for rpmfile name)
iptables -F
telnetd : ALL EXCEPT 192.168.1.10
38. Where is vsftpd.conf?
/etc/init.d/httpd start
telnetd : ALL EXCEPT 192.168.1.10
/etc/vsftpd
yum install mod_ssl squid
39. When an rpm install fails for xxxx because the same version is already apparently installed - run ____ to just install it all again
fdisk -l
rpm -e zip
grep '[.*]' server1.repo
rpm -ivh --replacepkgs xxxx*
40. What service is allowed through the default firewall?
ssh
chmod 701
setup
rpm -e zip
41. 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:
setsebool -P squid_connect_any 1
First boot process
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
yum install vsftpd
42. List sboth the client hostname or IP address and mounted directory in host:dir format. This info should not be considered reliable.
yum install httpd
ls -Z
rpm -V
showmount -a
43. 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.
iptables -F
telnetd : ALL EXCEPT 192.168.1.10
/etc/init.d/httpd restart
rpm -V
44. 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
fdisk -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)
ServerAdmin
45. You can use the ____ tool after installation to add any package groups that you missed.
resize2fs
ServerAdmin
yum install mod_ssl squid
pirut
46. How do you restart the apache web server?
ServerAdmin
e2fsadm
NameVirtualHost
/etc/init.d/httpd restart
47. I ran 'e2label /dev/sda' and got 'bad magic number' Why?
setup
(rpm -q)p file (for rpmfile name)
filesystem type is not ext2 or ext3
system-config-firewall
48. 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:
lvextend -L4G /dev/rootvg/tmplv
-K
Yes
showmount -e
49. rpm ____ verifies all installed rpms against the rpm database
rpm -Va
e2fsadm
resize2fs /dev/myvg/homevol
rpm -V
50. How to start the vsftp service?
resize2fs
yum install vsftpd
/etc/init.d/vsftpd start
iptables -F