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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. 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.
fdisk
-l
setsebool -P squid_connect_any 1
rpm -V
2. How to disable the firewall on the current system?
iptables -F
service vsftpd status
yum install vsftpd
yum update kernel
3. rpm ____ to import the rpm key for integrity checking
rpm -Va
--import file
LVM
rpm -V
4. 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.
iptables -F
resize2fs /dev/myvg/homevol
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)
First boot process
5. After you edit /etc/exports - run service ___ stop...
-l
nfs
ServerAdmin
htpasswd -c /etc/httpd/webpass e
6. 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 -y update
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
fdisk -l
e2fsadm
7. Where is the main apache data directory?
var/www/html
rpm -V zip
/etc/vsftpd
grep '[.*]' server1.repo
8. If rhel6 is in the /media directory - where is the XML file on that DVD with a database of packages and package groups?
lvdisplay -D /dev/rootvg/tmplv
chkconfig --level 35 httpd on
/media/repodata
e2fsadm
9. 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 ____
resize2fs /dev/myvg/homevol
fdisk -l
elinks
rpm -V
10. I just finished editing my /etc/yum.repos.d/*repo file and want yum to use the new info - so I run ____
5
var/www/html
yum clean all
pirut
11. 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:
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
htpasswd -c /etc/httpd/webpass e
(rpm -q)p file (for rpmfile name)
elinks
12. How to start the vsftp service automatically on boot?
resize2fs /dev/myvg/homevol
yum update kernel
chkconfig vsftpd on
parted; mklabel k
13. SELinux must be configured to Allow HTTPD To Read Home Directories. (Alternatively - activate the httpd_enable_homedirs boolean with the __ command.)
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)
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)
setsebool -P htttpd.enable.homedirs 1
14. How to start the vsftp service?
/ (root) - /boot and linux swap
filesystem type is not ext2 or ext3
/etc/init.d/vsftpd start
service vsftpd status
15. To verify integrity of an rpm package - ____/rpm-gpg/RPM-GPG-KEY-redhat-release
setup
-i (do not use -U or -F!)
setsebool -P squid_connect_any 1
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
16. 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
-K
rpm -qc
parted; mklabel k
/boot
17. To install both mod_ssl and squid packages
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
yum install mod_ssl squid
pirut
select (followed by the device name such as /dev/hdb)
18. Tthe file that might contain: oldvg - rootvg - etc.
rpm -e zip
rpm -V
5
/etc/lvmtab
19. Where is vsftpd.conf?
/etc/vsftpd
NameVirtualHost
/etc/lvmtab
setsebool -P squid_connect_any 1
20. I ran 'e2label /dev/sda' and got 'bad magic number' Why?
filesystem type is not ext2 or ext3
DocumentRoot
rpm -e zip
Yes
21. rpm ____ to install kernel updates
/var/ftp/pub
ErrorLog
NameVirtualHost
-i (do not use -U or -F!)
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)
Yes
fdisk -l
telnetd : ALL EXCEPT 192.168.1.10
CustomLog
23. Where is the vsftp pub dir?
chcon -R -t httpd_sys_content_t /home/michael/public_html
/etc/lvmtab
/var/ftp/pub
rpm -V
24. 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)
setup
ServerAdmin
/etc/httpd/conf/
25. Where is the config dir for vsftpd?
e2fsadm
-l
/etc/vsftpd
rpm -V zip
26. 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
rpm -V
chcon -R -t httpd_sys_content_t /home/michael/public_html
var/www/html
pirut
27. To check status of ftp daemon
nfs
service vsftpd status
rpm -V
fdisk -l
28. The rpm ____ option installs the package - if it isn't already installed.
ls -Z
port 21
LVM
-i
29. _____ will change the size of /dev/rootvg/tmplv to 4 gig
lvdisplay -D /dev/rootvg/tmplv
lvextend -L4G /dev/rootvg/tmplv
var/ftp/pub
rpm -qc
30. Perform a simple check of the file system. minor-num is x.
5
parted; check x
/etc/lvmtab
fdisk -l
31. rpm options include rpm -q [package name] or rpm -qf [path/file] or rmp -q____
fdisk -l
htpasswd -c /etc/httpd/webpass e
chmod 701
(rpm -q)p file (for rpmfile name)
32. The simplest way to install Apache
ServerTokens
-i (do not use -U or -F!)
yum install httpd
e2fsadm
33. httpd ___ to update the httpd package - automatically answering yes to all the questions
-i (do not use -U or -F!)
fdisk
ssh
yum -y update
34. Are SELinux and iptables-based firewalls are enabled by default?
LVM
service vsftpd status
Yes
lvdisplay -D /dev/rootvg/tmplv
35. You can use the ____ tool after installation to add any package groups that you missed.
NameVirtualHost
pirut
service vsftpd status
telnetd : ALL EXCEPT 192.168.1.10
36. What is the standard directory for file sharing with vsFTP?
-l
var/ftp/pub
/etc/vsftpd
tune2fs
37. How do you restart the apache web server?
rpm -V zip
/etc/init.d/httpd restart
fdisk -l
e2fsadm
38. Virtual Host Configuration: Creates an error log; the location is based on the DocumentRoot.
(rpm -q)p file (for rpmfile name)
ErrorLog
setsebool -P squid_connect_any 1
NameVirtualHost
39. How to install apache?
dumpe2fs
yum install httpd
var/ftp/pub
setup
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
lvdisplay -D /dev/rootvg/tmplv
setsebool -P squid_connect_any 1
showmount -e
var/www/html
41. List sboth the client hostname or IP address and mounted directory in host:dir format. This info should not be considered reliable.
NameVirtualHost
/etc/init.d/vsftpd start
showmount -a
-l
42. The most straightforward way to make sure Apache starts in bootlevels 3 and 5
setup
chkconfig --level 35 httpd on
lvdisplay -D /dev/rootvg/tmplv
rpm -e zip
43. output from ____ is: Disk /dev/cciss/c0d0: 36.4 GB - 36414750720 bytes... plus listing of partitions - for each physical drive
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
fdisk -l
5
-l
44. What is the first post installation step?
var/www/html
telnetd : ALL EXCEPT 192.168.1.10
First boot process
yum install mod_ssl squid
45. How to start apache service?
parted; check x
yum clean all
/etc/init.d/httpd 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)
46. ___ http://devmon.dev.schwab.com/index.html will make a local copy of the index.html file from devmon
wget (http://devmon.dev.schwab.com/index.html)
chkconfig httpd on
/etc/vsftpd
yum install mod_ssl squid
47. 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
ErrorLog
rpm -V zip
/etc/vsftpd
yum update kernel
48. Create a disk label for the partition table called k
NameVirtualHost
/media/repodata
parted; mklabel k
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
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
-i
ssh
/etc/squid/
iptables
50. Create the basic cache directories in /var/spool/squid with the following command:
iptables -F
NameVirtualHost
squid -z
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)