Jul 2017 updated: Ucertify Red Hat RH302 latest exam 101-110

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Q101. CORRECT TEXT

Install the Redhat Linux RHEL 4 through NFS. Where your Server is server1.example.com having IP 172.24.254.254 and shared /var/ftp/pub. The size of the partitions are listed below:

/ à 1048

/home à 1028

/boot à 512

/var à 1028

/usr à 2048

Swap -> 1.5 of RAM Size

/archive à configure the RAID Level 0 of remaining all free space.

After completing the installation through NFS solve the following questions. There are two networks 172.24.0.0/16 and 172.25.0.0/16. As well as there are two domains example.com on 172.24.0.0/16 network and my133t.org on 172.25.0.0/16 network. Your system is based on example.com domain.

Answer and Explanation:

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 NFS Image 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 NFS Server Name and Redhat Enterprise Linux Directory.

Specify the NFS Server: 172.24.254.254

Directory: /var/ftp/pub

8. After Connecting to the NFS Server Installation start in GUI. 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. Create the two RAID partitions having equal size of remaining all free space.

11. Click on RAID button

12. Type mount point /archive

13. Select RAID Level 0

14. Click on ok

15. 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 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.

Q102. CORRECT TEXT

Configure the caching only-name server for example.com where DNS server is 192.100.0.254.

Answer and Explanation:

1. vi /var/named/chroot/etc/named.conf

options {

forwarders { 192.168.22.250; };

forward only;

};

2. service named start | restart

Caching-only name server forwards a request to another name server or to the root name servers in orders to determine the authoritative name server for the resolution. Once resolution has taken place, the caching-only name server stores the resolved information in a cache for the designated time to live period.

Q103. CORRECT TEXT

Your Local Domain is example.com. Configure the send mail server for you local LAN by following these conditions.

i. Any mail going from Local LAN should be masquerade to example.com

ii. Any incoming mail for info@example.com virtual address should be mapped to admin@example.com

iii. All outgoing mail should be send via smtp.abc.com mail server.

Answer and Explanation:

1. vi /etc/mail/local-host-names

example.com

2. vi /etc/mail/sendmail.mc

dnl # DEAMON_OPTIONS(`Port=smtp,Addr=127.0.0.1,Name=MTA`)dnl

MASQUERADE_AS(`example.com')dnl

define(`SMART_HOST',`smtp.abc.com')

3. m4 /etc/mail/sendmail.mc >/etc/mail/sendmail.cf

4. vi /etc/mail/virtusertable

info@example.com admin@example.com

5. vi /etc/mail/access

192.168.0 RELAY

/etc/mail/local-host-names file contains the aliases to hostname. Mail server program reads the

/etc/mail/sendmail.cf. To change the configuration on mail server, we should edit the

/etc/mail/sendmail.mc file and should generate the sendmail.cf using m4 command.

By default sendmail server allows to connect to local host only. So we should edit the

/etc/mail/sendmail.mc file to allow connect to other hosts.

By default sendmail server will not forward mail. We should specify on /etc/mail/access to relay or to block mail coming from domain or network or individual email address.

To masquerade the address, MASQUERADE_AS option is in /etc/mail/sendmail.mc.

SMART_HOST deliver all local mail locally and outgoing mail through another mail server.

/etc/mail/virtusertable file is used map virtual address to real address.

Eg.

info@example.com user1@example.com

enquiry@example.com admin@abc.com

Q104. CORRECT TEXT

Give Full Permission to owner user and owner group member but no permission to others on /data.

Answer and Explanation:

We can change the permission of file/directory either character symbol method or numeric

method.

Permission:

r-Read

w-Write

x-Execute

Permission Category

u- Owner User

g- Owner Group

o- Others

Operators

+ àAdd the Permissions

– àRemove the Permissions

= àAssigns the Permissions

Numeric Method:

4àRead

2àWrite

1àExecute

Total: 7, total for owner user, owner group member and for others : 777chmod u+rwx /datachmod

g+rwx /datachmod o-rwx /data

or

chmod 770 /dataVerify the /data : ls -ld /dataYou will get drwxrwx—

Q105. CORRECT TEXT

Make Secondary belongs the jackie and curtin users on sysuser group. But david user should not belongs to sysuser group.

Answer and Explanation:

1. usermod -G sysuser jackie

2. usermod -G sysuser curtin

3. Verify by reading /etc/group file

Using usermod command we can make user belongs to different group. There are two types of group one primary and another is secondary. Primary group can be only one but user can belongs to more than one group as secondary.

usermod -g groupname username à To change the primary group of the user

usermod -G groupname username à To make user belongs to secondary group.

Q106. CORRECT TEXT

One Package named zsh is dump on ftp://server1.example.com under /pub/updates directory and your FTP server is 192.168.0.254. Install the package zsh.

Answer and Explanation:

1. rpm -ivh ftp://server1/example.com/pub/updates/zsh-*

or

1. Login to ftp server : ftp ftp://server1.example.com using anonymous user.

2. Change the directory: cd pub and cd updates

3. Download the package: mget zsh-*

4. Quit from the ftp prompt : bye

5. Install the package

6. rpm -ivh zsh-*

7. Verify either package is installed or not : rpm -q zsh

Q107. CORRECT TEXT

Give Full Permission to owner user and owner group member but no permission to others on /data.

Answer and Explanation:

We can change the permission of file/directory either character symbol method or numeric method.

Permission:

r-Read

w-Write

x-Execute

Permission Category

u- Owner User

g- Owner Group

o- Others

Operators

+ à Add the Permissions

– à Remove the Permissions

= à Assigns the Permissions

Numeric Method:

4àRead

2à Write

1àExecute

Total: 7, total for owner user, owner group member and for others : 777

1. chmod u+rwx /data

2. chmod g+rwx /data

3. chmod o-rwx /data

or

chmod 770 /data

4. Verify the /data : ls -ld /data

5. You will get drwxrwx—

Q108. CORRECT TEXT

Create the group named sysadmin.

Answer and Explanation:

1. groupadd sysadmin

groupadd command is used to create the group and all group information is stored in /etc/group file.

Q109. CORRECT TEXT

Make Successfully Resolve to server1.example.com where DNS Server is 192.168.0.254.

Answer and Explanation: 

1. vi /etc/resolv.conf

Write: nameserver 192.168.0.254

Q110. CORRECT TEXT

You are giving RHCT Exam and in your Exam paper there is a question written, make successfully ping to 192.168.0.254.

Answer and Explanation:

In Network problem thinks to check:

1. IP Configuration: use ifconfig command either IP is assigned to interface or not?

2. Default Gateway is set or not?

3. Hostname is set or not?

4. Routing problem is there?

5. Device Driver Module is loaded or not?

6. Device is activated or not?

Check In this way:

1. use ifconfig command and identify which IP is assigned or not.

2. cat /etc/sysconfig/network à What, What is written here. Actually here are these parameters.

NETWORKING=yes or no

GATEWAY=x.x.x.x

HOSTNAME=?

NISDOMAIN=?

– Correct the file

3. Use vi /etc/sysconfig/network-scirpts/ifcfg-eth0 and check the proper options

DEVICE=eth0

ONBOOT=yes

BOOTPROTO=static

IPADDR=x.x.x.x

NETMAKS=x.x.x.x

GATEWAY=x.x.x.x

4. Use service network restart or start command

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