Exam Code: RH302 (Practice Exam Latest Test Questions VCE PDF)
Exam Name: Red Hat Certified Engineer on Redhat Enterprise Linux 5 (Labs)
Certification Provider: Red Hat
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Q11. CORRECT TEXT
You are an Administrator of example.com domain. You need to configure the DNS for www.example.com by providing the round-robin load balancing. You should load balance to 5 hosts for www having IP: 192.100.0.1, 192.100.0.2, 192.100.0.3, 192.100.0.4 and 192.100.0.5.
Where DNS is 192.100.0.X (X is your DNS Server).
Answer and Explanation:
1. Rename the file named.caching-nameserver.conf into named.conf file located into
/var/named/chroot/etc
#mv /var/named/chroot/etc/named.caching-nameserver.conf /var/named/chroot/etc/named.conf
2. Check the permission and ownership as well as SELinux Context should be like as:
-rw-r----- root named system_u:object_r:named_conf_t /var/named/chroot/etc/named.conf
If selinux context is mismatch use the restorecon -R /var command
3. vi /etc/named.conf
zone "example.com" IN {
type master;
file "example.com.zone";
};
/var/named/chroot/etc/named.conf file is used to register the zone as well as specify the global option for DNS server. There are two types of zone, i. Master, which contains the original data. ii.
Slave, backup of master. Here is the example of master zone configuration.
4. vi /var/named/chroot/var/named/example.com.zone
$TTL 345345
@ IN SOA @ webmaster.example.com.(
101; Serial Number
1H; Refresh Time
1M; Retry Time
1W; Expire Time
1D; Minimum Time to Live
)
@ IN NS 192.100.0.X
www 0 IN A 192.100.0.1
www 0 IN A 192.100.0.2
www 0 IN A 192.100.0.3
www 0 IN A 192.100.0.4
www 0 IN A 192.100.0.5
3. service named start
4. rndc reload
5. chkconfig named on
6. Check the permission as well as SELinux Context should like this:
-rw-r--r-- root named root:object_r:named_zone_t
/var/named/chroot/var/named/example.com.zone
If selinux context is mismatch use the restorecon -R /var command
7. service named start
8. rndc reload
9. chkconfig named on
Zone file should create on /var/named/chroot/var/named. Default Directory Path is specified on
/var/named/chroot/etc/named.conf file.
$TTLàTime To Live, How much seconds cache server stores the information about DNS. And Five Parameters specified Serial Number used by slave to synchronize with master server. Refresh and Retry Time used by slave server. NS is the Name (DNS) server where lookup the domain. A (Associated IP) for particular host.
Q12. CORRECT TEXT
There is a FTP server 192.168.0.254 and all required packages are dumped in /var/ftp/pub of that server and anonymous login is enabled. Install the Redhat Enterprise Linux 5 as an anonymous by creating following partitions:
/ 1000
/boot 200
/home 1000
/var 1000
/usr 4000
swap 2X256 (RAM SIZE)
Answer and Explanation:
Note: Examiner will provide you the Installation startup CD. And here mentioned size may vary see on the exam paper.
1. Insert the CD on CD-ROM and start the system.
2. In Boot: Prompt type linux askmethod
3. It will display the Language, keyboard selection.
4. It will ask you for the installation method.
5. Select the FTP from the list
6. It will ask the IP Address, Net mask, Gateway and Name Server. Select Use
Dynamic IP Configuration: because DHCP Server will be configured in your exam lab.
7. It will ask for the FTP site name and Redhat Enterprise Linux Directory.
Specify the FTP Server: 192.168.0.254
Directory: pub à Because anonymous login on /var/ftp.
8. After Connecting to the FTP Server Installation will start. Go up to the partition screen by selecting the different Options.
9. Create the partition According to the Question because Size and what-what partition should you create at installation time is specified in your question
10. Then select the MBR Options, time zone and go upto package selections.
It is another Most Important Time of installation. Due to the time limit, you should be care about the installation packages. At Exam time you these packages are enough.
X-Window System
GNOME Desktop
(these two packages are generally not required)
Administration Tools.
System Tools
Windows File Server
FTP Servers
Mail Servers
Web Servers
Network Servers
Editors
Text Based Internet
Server Configuration Tools
Printing Supports
When installation will complete, your system will reboot. Jump for another Question.
Q13. CORRECT TEXT
You are working as an administrator of example.com domain. There are five web servers( www), three mail servers(mail1, mail2, mail). Configure the DNS for www, mail, mail1, mail2 by specifying mail.example.com is the Primary Mail Server for example.com domain. Where 192.168.100.1-5 for www, 6,7,8 for mail, mail1, m ail2 and 192.168.0.X for DNS.
Answer and Explanation:
1. Rename the file named.caching-nameserver.conf into named.conf file located into
/var/named/chroot/etc
#mv /var/named/chroot/etc/named.caching-nameserver.conf /var/named/chroot/etc/named.conf
2. Check the permission and ownership as well as SELinux Context should be like as:
-rw-r----- root named system_u:object_r:named_conf_t /var/named/chroot/etc/named.conf
If selinux context is mismatch use the restorecon -R /var command
3. vi /etc/named.conf
zone "example.com" IN {
type master;
file "example.com.zone";
};
/var/named/chroot/etc/named.conf file is used to register the zone as well as specify the global option for DNS server. There are two types of zone, i. Master, which contains the original data. ii.
Slave, backup of master. Here is the example of master zone configuration.
4. vi /var/named/chroot/var/named/example.com.zone
$TTL 345345
@ IN SOA @ webmaster.example.com.(
101; Serial Number
1H; Refresh Time
1M; Retry Time
1W; Expire Time
1D; Minimum Time to Live
)
@ IN NS 192.100.0.X
www 0 IN A 192.100.0.1
www 0 IN A 192.100.0.2
www 0 IN A 192.100.0.3
www 0 IN A 192.100.0.4
www 0 IN A 192.100.0.5
mail IN A 192.100.0.6
mail1 IN A 192.100.0.7
mail2 IN A 192.100.0.8
@ IN MX 5 mail.example.com.
@ IN MX 8 mail1.example.com.
@ IN MX 10 mail2.example.com.
3. service named start
4. rndc reload
5. chkconfig named on
6. Check the permission as well as SELinux Context should like this:
-rw-r--r-- root named root:object_r:named_zone_t
/var/named/chroot/var/named/example.com.zone
If selinux context is mismatch use the restorecon -R /var command
7. service named start
8. rndc reload
9. chkconfig named on
Zone file should create on /var/named/chroot/var/named. Default Directory Path is specified on
/var/named/chroot/etc/named.conf file.
$TTLàTime To Live, How much seconds cache server stores the information about DNS. And Five Parameters specified Serial Number used by slave to synchronize with master server. Refresh and Retry Time used by slave server. NS is the Name (DNS) server where lookup the domain. A (Associated IP) for particular host.
DNS has mechanism to load balance the request from clients. You can verify using host www.example.com command. MX resource records are used to define mail handler or exchanger for the domain. MX record must pass the positive integer value. This integer value is used by remote Mail Transport Agent (MTA) to determine, which host has delivery priority for the zone. The Lowest integer value will get the priority.
Q14. CORRECT TEXT
There are mixed lots of System running on Linux and Windows OS. Some users are working on Windows Operating System. Your printer is connected on linux server. You want to share the printer-using samba so that users working on windows also can print. Configure the samba serve to share printer.
Answer and Explanation:
1. vi /etc/samba/smb.conf
[global]
netbios name=station?
workgroup=linuxgroup
security=share
printcap name=/etc/printcap
load printers=yes
printing=cups
[printers]
path=/var/spool/samba
browsable=yes
printable=yes
guest ok=no
writable=no
Samba servers helps to share the data between linux and windows. Configuration file is /etc/samba/smb.conf. There are some pre-defined section, i. global à use to define the global options, ii. Printers à use to share the printers, iii. homes à use to share the user's home directory.
/etc/printcap file contains all installed printers name. Printing is print system used on server.
Q15. CORRECT TEXT
You are giving the debug RHCT exam. The examiner told you that the password of root is redhat.
When you tried to login displays the error message and redisplayed the login screen. You changed the root password, again unable to login as a root. How will you make Successfully Login as a root.
Answer and Explanation:
When root unable to login into the system think:
1. Is password correct?
2. Is account expired?
3. Is terminal Blocked?
Do these Steps:Boot the System on Single user mode.Change the passwordCheck the account expire date by using chage -l root command.
If account is expired, set net expire date: chage -E "NEVER" root
1. Check the file /etc/securetty à Which file blocked to root login from certain terminal.
2. If terminal is deleted or commented write new or uncomment.
3. Reboot the system and login as a root.
Q16. CORRECT TEXT
Create the partition having 100MB size and mount it on /mnt/neo
Answer and Explanation:
18. Use fdisk /dev/hda àTo create new partition.
19. Type n àFor New partitions
20. It will ask for Logical or Primary Partitions. Press l for logical.
21. It will ask for the Starting Cylinder: Use the Default by pressing Enter Key.
22. Type the Size: +100M àYou can Specify either Last cylinder of Size here.
23. Press P to verify the partitions lists and remember the partitions name.
24. Press w to write on partitions table.
25. Either Reboot or use partprobe command.
26. Use mkfs -t ext3 /dev/hda? Where ? is your partition number
27. Or
28. mke2fs -j /dev/hda? àTo create ext3 filesystem.
29. mkdir /mnt/neo
30. vi /etc/fstab
31. Write:
32. /dev/hda? /mnt/neo ext3 defaults 1 2
33. Verify by mounting on current Sessions also:
34. mount /dev/hda? /mnt/neo
Q17. CORRECT TEXT
/data Directory is shared from the server1.example.com server. Mount the shared directory that:
d. when user try to access, automatically should mount
e. when user doesn't use mounted directory should unmount automatically after 50 seconds.
f. Shared directory should mount on /mnt/data on your machine.
Answer and Explanation:
6. vi /etc/auto.master
/mnt /etc/auto.misc --timeout=50
7. vi /etc/auto.misc
8. data -rw,soft,intr server1.example.com:/data
9. service autofs restart
10. chkconfig autofs on
When you mount the other filesystem, you should unmount the mounted filesystem, Automount feature of linux helps to mount at access time and after certain seconds, when user unaccess the mounted directory, automatically unmount the filesystem.
/etc/auto.master is the master configuration file for autofs service. When you start the service, it reads the mount point as defined in /etc/auto.master.
Q18. CORRECT TEXT
neo user tried by:
dd if=/dev/zero of=/home/neo/somefile bs=1024 count=70
files created successfully. Again neo tried to create file having 70K using following command:
dd if=/dev/zero of=/home/neo/somefile bs=1024 count=70
But he is unable to create the file. Make the user can create the file less then 70K.
Answer and Explanation:
Very Tricky question from redhat. Actually question is giving scenario to you to implement quota to neo user. You should apply the quota to neo user on /home that neo user shouldn't occupied space more than 70K.
1. vi /etc/fstab
LABEL=/home /home ext3 defaults,usrquota 0 0 àTo enable the quota on filesystem you should mount the filesystem with usrquota for user quota and grpquota for group quota.
2. touch /home/aquota.user àCreating blank quota database file.
3. mount -o remount /home àRemounting the /home with updated mount options. You can verify that /home is mounted with usrquota options or not using mount command.
4. quotacheck -u /home àInitialization the quota on /home
5. edquota -u neo /home àQuota Policy editor
See the snapshot
1 Disk quotas for user neo (uid 500):
2 Filesystem blocks soft hard inodes soft hard
4 /dev/mapper/vo-myvol 2 30 70 1 0 0
Can you set the hard limit 70 and soft limit as you think like 30.
Q19. CORRECT TEXT
There is a HTTP server 192.168.0.254 and all required packages are dumped in /var/www/html/rhel4 of that server. Install the Redhat Enterprise Linux 5 by creating following partitions:
/ 1000
/boot 200
/home 1000
/var 1000
/usr 4000
swap 2X256 (RAM SIZE)
Answer and Explanation:
Note: Examiner will provide you the Installation startup CD. And here mentioned size may vary see on the exam paper.
1. Insert the CD on CD-ROM and start the system.
2. In Boot: Prompt type linux askmethod
3. It will display the Language, keyboard selection.
4. It will ask you for the installation method.
5. Select the HTTP from the list
6. It will ask the IP Address, Net mask, Gateway and Name Server. Select Use
Dynamic IP Configuration: because DHCP Server will be configured in your exam lab.
7. It will ask for the Web site name and Redhat Enterprise Linux Directory.
Specify the HTTP Server: 192.168.0.254
Directory: rhel4 à Because Default Directory for http is /var/www/html
8. After Connecting to the HTTP Server Installation start. Go upto the partition screen by selecting the different Options.
9. Create the partition According to the Question because Size and what-what partition should you create at installation time is specified in your question
10. Then select the MBR Options, time zone and go upto package selections.
It is another Most Important Time of installation. Due to the time limit, you should be care about the installation packages. At Exam time you these packages are enough.
X-Window System
GNOME Desktop
(these two packages are generally not required)
Administration Tools.
System Tools
Windows File Server
FTP Servers
Mail Servers
Web Servers
Network Servers
Editors
Text Based Internet
Server Configuration Tools
Printing Supports
When installation will complete, your system will reboot. Jump for another Question.
Q20. CORRECT TEXT
Create the directory /storage and group owner should be the sysusers group.
Answer and Explanation:
1. chgrp sysusers /storage
2. Verify using ls -ld /storage command. You should get like
drwxr-x--- 2 root sysusers 4096 Mar 16 17:59 /storage
chgrp command is used to change the group ownership of particular files or directory.
Another way you can use the chown command.
chown root:sysusers /storage