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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. 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
chkconfig --list httpd
yum update kernel
ssh
ls -Z
2. rpm ____ to import the rpm key for integrity checking
system-config-firewall
--import file
ssh
wget (http://devmon.dev.schwab.com/index.html)
3. Create a disk label for the partition table called k
/etc/init.d/httpd restart
/etc/vsftpd
parted; mklabel k
service vsftpd status
4. rpm option to show me the package files
--import file
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
chkconfig vsftpd on
-l
5. What parts of rhel6 should be installed to separate volumes?
/ (root) - /boot and linux swap
resize2fs
rpm -V
yum clean all
6. The most straightforward way to make sure Apache starts in bootlevels 3 and 5
showmount -e
/etc/httpd/conf/
mke2fs
chkconfig --level 35 httpd on
7. List sboth the client hostname or IP address and mounted directory in host:dir format. This info should not be considered reliable.
resize2fs
parted; mklabel k
showmount -a
filesystem type is not ext2 or ext3
8. '____ /var/www' will tell you the ACL settings of /var/www
e2fsadm
ls -Z
rpm -ivh --replacepkgs xxxx*
--import file
9. SELinux must be configured to Allow HTTPD To Read Home Directories. (Alternatively - activate the httpd_enable_homedirs boolean with the __ command.)
e2fsadm
var/ftp/pub
-K
setsebool -P htttpd.enable.homedirs 1
10. 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
dd if=./diskboot.img of=/dev/sdc
chcon -R -t httpd_sys_content_t /home/michael/public_html
chmod 701
11. 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
chmod 701
yum install vsftpd
/etc/vsftpd
chcon -R -t httpd_sys_content_t /home/michael/public_html
12. rpm options include rpm -q [package name] or rpm -qf [path/file] or rmp -q____
(rpm -q)p file (for rpmfile name)
service vsftpd status
pirut
Yes
13. rpm ____ verifies all installed rpms against the rpm database
DocumentRoot
rpm -e zip
iptables -F
rpm -Va
14. To check status of ftp daemon
rpm -V
parted; mklabel k
service vsftpd status
NameVirtualHost
15. What service is allowed through the default firewall?
rpm -ivh --replacepkgs xxxx*
squid -z
ssh
yum -y update
16. To verify integrity of an rpm package - ____/rpm-gpg/RPM-GPG-KEY-redhat-release
dd if=./diskboot.img of=/dev/sdc
-i
setsebool -P htttpd.enable.homedirs 1
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
17. The main Squid configuration file is ____/squid.conf
First boot process
rpm -V
/etc/squid/
ErrorLog
18. Logical partitions on a hard drive always start with number ____; on the first PATA/IDE hard drive on a PC - that is hda____.
DocumentRoot
5
yum install httpd
rpm -V zip
19. 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
var/www/html
resize2fs
chkconfig vsftpd on
ServerTokens
20. Perform a simple check of the file system. minor-num is x.
setup
/etc/vsftpd
lvdisplay -D /dev/rootvg/tmplv
parted; check x
21. 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 ____
/etc/init.d/vsftpd start
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-ports 3128
elinks
chkconfig httpd on
22. How to make sure apache starts automatically on next reboot?
yum install mod_ssl squid
var/ftp/pub
fdisk -l
chkconfig httpd on
23. To select a different device without having to restart parted - use the ____ command . Then - you can view its partition table or configure it.
htpasswd -c /etc/httpd/webpass e
select (followed by the device name such as /dev/hdb)
nfs
First boot process
24. ____ prints superblock and block group information.
yum install httpd
5
dumpe2fs
fdisk -l
25. Virtual Host Configuration: Specifies an IP address for multiple virtual hosts.
showmount -e
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
NameVirtualHost
/var/ftp/pub
26. 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:
port 21
yum install httpd
htpasswd -c /etc/httpd/webpass e
elinks
27. 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)
lvdisplay -D /dev/rootvg/tmplv
e2fsadm
chkconfig vsftpd on
setup
28. what port needs to be open to access ftp?
port 21
elinks
-l
5
29. 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:
NameVirtualHost
-i (do not use -U or -F!)
/etc/init.d/vsftpd start
chcon -R -u system_u /www/; chcon -R -t httpd_sys_content_t /www/
30. 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
/etc/init.d/httpd start
nfs
/boot
setsebool -P squid_connect_any 1
31. This line placed in /etc/hosts.deny denies all services except TFTP to computers in the example.org domain
chkconfig vsftpd on
ALL EXCEPT in.tftpd : .example.org (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
/etc/squid/
chkconfig --level 35 httpd on
32. 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
lvextend -L4G /dev/rootvg/tmplv
telnetd : ALL EXCEPT 192.168.1.10
htpasswd -c /etc/httpd/webpass e
33. _____ will change the size of /dev/rootvg/tmplv to 4 gig
lvextend -L4G /dev/rootvg/tmplv
yum install vsftpd
-K
yum update kernel
34. Virtual Host Configuration: Creates an error log; the location is based on the DocumentRoot.
ErrorLog
Yes
mke2fs
setsebool -P htttpd.enable.homedirs 1
35. Create a usb boot disk if the usb stick is /dev/sdc and the file you need is in your present directory
ssh
ServerName
dd if=./diskboot.img of=/dev/sdc
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
36. How to disable the firewall on the current system?
chkconfig httpd on
iptables -F
First boot process
parted /dev/hda print
37. What is the standard directory for file sharing with vsFTP?
htpasswd -c /etc/httpd/webpass e
var/ftp/pub
parted /dev/hda print
dumpe2fs
38. You can use the ____ tool after installation to add any package groups that you missed.
chkconfig --level 35 httpd on
pirut
rpm -V zip
AllowOverride
39. httpd ___ shows me what config files were installed when the httpd package was installed
var/ftp/pub
/etc/vsftpd
telnetd : .crack.org : twist /bin/echo Sorry %c - access denied (http://books24x7.com/viewer.asp?bookid=18196&chunkid=908275044)
rpm -qc
40. ______ will show me volume info including vg - size - etc of /dev/rootvg/tmplv
/etc/lvmtab
First boot process
lvdisplay -D /dev/rootvg/tmplv
setsebool -P htttpd.enable.homedirs 1
41. Where to find the main apache config file?
rpm -e zip
mke2fs
/etc/httpd/conf/
e2fsadm
42. How to install apache?
pirut
yum install httpd
chmod 701
ErrorLog
43. what utility can be used to open port 80?
tune2fs
setsebool -P htttpd.enable.homedirs 1
system-config-firewall
/etc/vsftpd
44. Virtual Host Configuration: Names the URL for the virtual host.
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)
var/www/html
ServerName
yum install vsftpd
45. rpm ____ [name of package] to verify the package - once you have manually imported the key
dumpe2fs
/etc/httpd/conf/
-K
var/www/html
46. Are SELinux and iptables-based firewalls are enabled by default?
Yes
/etc/vsftpd
ServerTokens
resize2fs
47. ____ configuration is not available via text mode RHEL installation.
fdisk -l
LVM
/etc/vsftpd
First boot process
48. To list under which run levels the web service will start
chkconfig --list httpd
ls -Z
(rpm -q)p file (for rpmfile name)
telnetd : ALL EXCEPT 192.168.1.10
49. 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
rpm --import /etc/pki(/rpm-gpg/RPM-GPG-KEY-redhat-release)
ssh
-i (do not use -U or -F!)
50. After extending file system 'homevol' - unmount it and then run _____ to make the filesystem size match the new larger volume.
ls -Z
chkconfig --level 35 httpd on
grep '[.*]' server1.repo
resize2fs /dev/myvg/homevol