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RHCSA-EX200 Dump Free

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  • RHCSA-EX200 Dump Free – 50 Practice Questions to Sharpen Your Exam Readiness.
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RHCSA-EX200 Dump Free – 50 Practice Questions to Sharpen Your Exam Readiness.

Looking for a reliable way to prepare for your RHCSA-EX200 certification? Our RHCSA-EX200 Dump Free includes 50 exam-style practice questions designed to reflect real test scenarios—helping you study smarter and pass with confidence.

Using an RHCSA-EX200 dump free set of questions can give you an edge in your exam prep by helping you:

  • Understand the format and types of questions you’ll face
  • Pinpoint weak areas and focus your study efforts
  • Boost your confidence with realistic question practice

Below, you will find 50 free questions from our RHCSA-EX200 Dump Free collection. These cover key topics and are structured to simulate the difficulty level of the real exam, making them a valuable tool for review or final prep.

Question 1

SIMULATION -
Configure NTP.
Configure NTP service, Synchronize the server time, NTP server: classroom.example.com

 


Suggested Answer: See explanation below.

 

Configure the client:
Yum -y install chrony –
Vim /etc/chrony.conf –
Add: server classroom.example.com iburst
Start: systemctl enable chronyd –
systemctl restart chronyd
Validate: timedatectl status

 

Question 2

SIMULATION -
Configure autofs to make sure after login successfully, it has the home directory autofs, which is shared as /rhome/ldapuser40 at the ip: 172.24.40.10. and it also requires that, other ldap users can use the home directory normally.

 


Suggested Answer: See explanation below.

 

# chkconfig autofs on
# cd /etc/
# vim /etc/auto.master
/rhome /etc/auto.ldap
# cp auto.misc auto.ldap
# vim auto.ladp
ldapuser40 -rw,soft,intr 172.24.40.10:/rhome/ldapuser40
* -rw,soft,intr 172.16.40.10:/rhome/&
# service autofs stop
# server autofs start
# showmount -e 172.24.40.10
# su – ladpuser40

 

Question 3

SIMULATION -
A YUM repository has been provided at http://server.domain11.example.com/pub/x86_64/Server.
Configure your system to use this location as a default repository.

 


Suggested Answer: See explanation below.

 

vim/etc/yum.repos/base.repo
[base]
name=base
baseurl= http://server.domain11.example.com/pub/x86_64/Server gpgcheck=0 enable=1
Save and Exit –
Use yum list for validation, the configuration is correct if list the package information. If the Yum configuration is not correct then maybe cannot answer the following questions.

 

Question 4

SIMULATION -
Search a String -
Find out all the columns that contains the string seismic within /usr/share/dict/words, then copy all these columns to /root/lines.tx in original order, there is no blank line, all columns must be the accurate copy of the original columns.

 


Suggested Answer: See explanation below.

 

grep seismic /usr/share/dict/words > /root/lines.txt

 

Question 5

SIMULATION -
Create the user named eric and deny to interactive login.

 


Suggested Answer: See explanation below.

 

useradd eric
passwd eric
vi /etc/passwd
eric:x:505:505::/home/eric:/sbin/nologin
Which shell or program should start at login time is specified in /etc/passwd file? By default, Redhat Enterprise Linux assigns the /bin/bash shell to the users. To deny the interactive login, you should write /sbin/nologin or /bin/ false instead of login shell.

 

Question 6

SIMULATION -
Configure a user account.
Create a user iar uid is 3400. Password is redhat
ן¼

 


Suggested Answer: See explanation below.

 

useradd -u 3400 iar
passwd iar

 

Question 7

SIMULATION -
Create a volume group, and set 8M as a extends. Divided a volume group containing 50 extends on volume group lv (lvshare), make it as ext4 file system, and mounted automatically under /mnt/data. And the size of the floating range should set between 380M and 400M.

 


Suggested Answer: See explanation below.

 

# fdisk
# partprobe
# pvcreate /dev/vda6
# vgcreate -s 8M vg1 /dev/vda6 -s
# lvcreate -n lvshare -l 50 vg1 -l
# mkfs.ext4 /dev/vg1/lvshare
# mkdir -p /mnt/data
# vim /etc/fstab
/dev/vg1/lvshare /mnt/data ext4 defaults 0 0
# mount -a
# df -h

 

Question 8

SIMULATION -
Create one partitions having size 100MB and mount it on data.

 


Suggested Answer: See explanation below.

 

1. Use fdisk /dev/hda to create new partition.
2. Type n For New partitions.
3. It will ask for Logical or Primary Partitions. Press l for logical.
4. It will ask for the Starting Cylinder: Use the Default by pressing Enter
Key.
5. Type the Size: +100M you can specify either Last cylinder of size here.
6. Press P to verify the partitions lists and remember the partitions name.
7. Press w to write on partitions table.
8. Either Reboot or use partprobe command.
9. Use mkfs -t ext3 /dev/hda?
OR –
mke2fs -j /dev/hda? To create ext3 filesystem.
vi /etc/fstab
Write:
/dev/hda? /data ext3 defaults 1 2
Verify by mounting on current Sessions also: mount /dev/hda? /data

 

Question 9

SIMULATION -
Configure a task: plan to run echo hello command at 14:23 every day.

 


Suggested Answer: See explanation below.

 

# which echo
# crontab -e
23 14 * * * /bin/echo hello
# crontab -l (Verify)

 

Question 10

SIMULATION -
Create the following users, groups, and group memberships:
A group named adminuser.
A user natasha who belongs to adminuser as a secondary group A user harry who also belongs to adminuser as a secondary group.
A user sarah who does not have access to an interactive shell on the system, and who is not a member of adminuser, natasha, harry, and sarah should all have the password of redhat.

 


Suggested Answer: See explanation below.

 

groupadd sysmgrs
useradd -G sysmgrs Natasha
We can verify the newly created user by cat /etc/passwd)
# useradd -G sysmgrs harry
# useradd -s /sbin/nologin sarrh
# passwd Natasha
# passwd harry
# passwd sarrah

 

Question 11

SIMULATION -
In the system, mounted the iso image /root/examine.iso to/mnt/iso directory. And enable automatically mount (permanent mount) after restart system.

 


Suggested Answer: See explanation below.

 

/etc/fstab:
/root/examine.iso /mnt/iso iso9660 loop 0 0 mount -a
mount | grep examine

 

Question 12

SIMULATION -
Configure a default software repository for your system.
One YUM has already provided to configure your system on http://server.domain11.example.com/pub/ x86_64/Server, and can be used normally.

 


Suggested Answer: See explanation below.

 

Yum-config-manager –add-repo=http://content.example.com/rhel7.0/x86-64/dvdג€ is to generate a file vim content.example.com_rhel7.0_x86_64_dvd.repo, Add a line gpgcheck=0
Yumcleanall –
Yumrepolist –
Almost 4305 packages are right, Wrong Yum Configuration will lead to some following questions cannot be worked out.

 

Question 13

SIMULATION -
Change the logical volume capacity named vo from 190M to 300M. and the size of the floating range should set between 280 and 320. (This logical volume has been mounted in advance.)

 


Suggested Answer: See explanation below.

 

# vgdisplay
(Check the capacity of vg, if the capacity is not enough, need to create pv , vgextend , lvextend)
# lvdisplay (Check lv)
# lvextend -L +110M /dev/vg2/lv2
# resize2fs /dev/vg2/lv2
mount -a
(Verify)
——————————————————————————-
(Decrease lvm)
# umount /media
# fsck -f /dev/vg2/lv2
# resize2fs -f /dev/vg2/lv2 100M
# lvreduce -L 100M /dev/vg2/lv2
# mount -a
# lvdisplay (Verify)
OR –
# e2fsck -f /dev/vg1/lvm02
# resize2fs -f /dev/vg1/lvm02
# mount /dev/vg1/lvm01 /mnt
# lvreduce -L 1G -n /dev/vg1/lvm02
# lvdisplay (Verify)

 

Question 14

SIMULATION -
The user authentication has been provided by ldap domain in 192.168.0.254. According the following requirements to get ldapuser.
-LdapuserX must be able to login your system, X is your hostname number. But the ldapuser's home directory cannot be mounted, until you realize automatically mount by autofs server.
- All ldap user's password is "password".

 


Suggested Answer: See explanation below.

 

system-config-authentication &
<img src=”https://www.examtopics.com/assets/media/exam-media/04216/0005000001.png” alt=”Reference Image” />

 

Question 15

SIMULATION -
The system ldap.example.com provides an LDAP authentication service.
Your system should bind to this service as follows:
The base DN for the authentication service is dc=domain11, dc=example, dc=com LDAP is used to provide both account information and authentication information. The connection should be encrypted using the certificate at http://host.domain11.example.com/pub/domain11.crt
When properly configured, ldapuserX should be able to log into your system, but will not have a home directory until you have completed the autofs requirement.
Username: ldapuser11 -
Password: password -

 


Suggested Answer: See explanation below.

 

system-config-authentication LDAP user DN=dc=domain11,dc=example,dc=com Server= host.domain11.example.com
Certificate= http://host.domain11.example.com/pub/domain11.crt (enter url carefully, there maybe // or ..)
LDAP password –
OK –
starting sssd
su -ldapuser11 Display Bash prompt #exit

 

Question 16

SIMULATION -
You are new System Administrator and from now you are going to handle the system and your main task is Network monitoring, Backup and Restore. But you don't know the root password. Change the root password to redhat and login in default Runlevel.

 


Suggested Answer: See explanation below.

 

When you Boot the System, it starts on default Runlevel specified in /etc/inittab:
Id:?:initdefault:
When System Successfully boot, it will ask for username and password. But you don’t know the root’s password. To change the root password you need to boot the system into single user mode. You can pass the kernel arguments from the boot loader.
1. Restart the System.
2. You will get the boot loader GRUB screen.
3. Press a and type 1 or s for single mode ro root=LABEL=/ rhgb queit s
4. System will boot on Single User mode.
5. Use passwd command to change.
6. Press ctrl+d

 

Question 17

SIMULATION -
Configure a cron Task.
User natasha must configure a cron job, local time 14:23 runs and executes: */bin/echo hiya every day.

 


Suggested Answer: See explanation below.

 

crontab ג€”e ג€”u natasha
23 14/bin/echo hiya
crontab -l -u natasha // view
systemctlenable crond
systemcdlrestart crond

 

Question 18

SIMULATION -
Configure the permissions of /var/tmp/fstab
Copy the file /etc/fstab to /var/tmp/fstab. Configure the permissions of /var/tmp/fstab so that: the file /var/tmp/fstab is owned by the root user. the file /var/tmp/fstab belongs to the group root. the file /var/tmp/fstab should not be executable by anyone. the user natasha is able to read and write /var/tmp/fstab. the user harry can neither write nor read /var/tmp/fstab. all other users (current or future) have the ability to read /var/tmp/fstab.

 


Suggested Answer: See explanation below.

 

cp -a /etc/fstab /var/tmp
cd /var/tmp
ls -l
getfacl /var/tmp/fstab
chmod ugo-x /var/tmp/fstab
[ No need to do this, there won’t be execute permission for the file by default]
# setfacl -m u:natasha:rw /var/tmp/fstab # setfacl -m u:harry:0 /var/tmp/fstab(zero)
[Read permission will be there for all the users, by default. Check it using ls -l /var/tmp/fstab] Verify by
[ ls -la /var/tmp/fstab]

 

Question 19

SIMULATION -
Successfully resolve to server1.example.com where your DNS server is 172.24.254.254.

 


Suggested Answer: See explanation below.

 

vi /etc/resolv.conf
nameserver 172.24.254.254
host server1.example.com
On every clients, DNS server is specified in /etc/resolv.conf. When you request by name it tries to resolv from DNS server.

 

Question 20

SIMULATION -
Configure the FTP service in your system, allow remote access to anonymous login and download the program by this service. Service is still running after system rebooting.

 


Suggested Answer: See explanation below.

 

yum install vsftpd
/etc/init.d/vsftpd start
chkconfig vsftpd on

 

Question 21

SIMULATION -
SELinux must run in force mode.

 


Suggested Answer: See explanation below.

 

/etc/sysconfig/selinux
SELINUX=enforcing

 

Question 22

SIMULATION -
/data Directory is shared from the server1.example.com server. Mount the shared directory that:

 


Suggested Answer: See explanation below.

 

1. vi /etc/auto.master
/mnt /etc /auto.misc –timeout=50
vi /etc/auto.misc
data -rw,soft,intr server1.example.com:/data
service autofs restart
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.

 

Question 23

SIMULATION -
Create a backup -
Create a backup file named /root/backup.tar.bz2, contains the content of /usr/local, tar must use bzip2 to compress.

 


Suggested Answer: See explanation below.

 

cd /usr/local
tar ג€”jcvf /root/backup.tar.bz2
mkdir /test
tar ג€”jxvf /root/backup.tar.bz2 ג€”C /test// Decompression to check the content is the same as the /usr/loca after
If the questions require to use gzip to compress. change ג€”j to ג€”z.

 

Question 24

SIMULATION -
Create a 512M partition, make it as ext4 file system, mounted automatically under /mnt/data and which take effect automatically at boot-start.

 


Suggested Answer: See explanation below.

 

# fdisk /dev/vda
n
+512M
w
# partprobe /dev/vda
# mkfs -t ext4 /dev/vda5
# mkdir -p /data
# vim /etc/fstab
/dev/vda5 /data ext4 defaults 0 0
# mount -a

 

Question 25

SIMULATION -
Copy /etc/fstab document to /var/TMP directory. According the following requirements to configure the permission of this document.
✑ The owner of this document must be root.
✑ This document belongs to root group.
✑ User mary have read and write permissions for this document.
✑ User alice have read and execute permissions for this document.
✑ Create user named bob, set uid is 1000. Bob have read and write permissions for this document.
✑ All users has read permission for this document in the system.

 


Suggested Answer: See explanation below.

 

cp /etc/fstab /var/tmp
chown root:root /var/tmp/fstab
chmod a-x /var/tmp/fstab
setfacl ג€”m u:mary:rw /var/tmp/fstab
setfacl ג€”m u:alice:rx /var/tmp/fstab
useradd ג€”u 1000 bob

 

Question 26

SIMULATION -
You have a domain named www.rhce.com associated IP address is 192.100.0.2. Configure the Apache web server by implementing the SSL for encryption communication.

 


Suggested Answer: See explanation below.

 

vi /etc/httpd/conf.d/ssl.conf <VirtualHost 192.100.0.2> ServerName www.rhce.com DocumentRoot /var/www/rhce DirectoryIndex index.html index.htm
ServerAdmin
webmaster@rhce.com
SSLEngine on SSLCertificateFile /etc/httpd/conf/ssl.crt/server.crt SSLCertificateKeyFile /etc/httpd/conf/ssl.key/server.key </
VirtualHost>
cd /etc/httpd/conf
3 make testcert
Create the directory and index page on specified path. (Index page can download from ftp://server1.example.com at exam time) service httpd start|restart chkconfig httpd on
Apache can provide encrypted communications using SSL (Secure Socket Layer). To make use of encrypted communication, a client must request to https protocol, which is uses port 443. For HTTPS protocol required the certificate file and key file.

 

Question 27

SIMULATION -
One Logical Volume is created named as myvol under vo volume group and is mounted. The Initial Size of that Logical Volume is 400MB. Make successfully that the size of Logical Volume 200MB without losing any data. The size of logical volume 200MB to 210MB will be acceptable.

 


Suggested Answer: See explanation below.

 

First check the size of Logical Volume: lvdisplay /dev/vo/myvol
Make sure that the filesystem is in a consistent state before reducing:
# fsck -f /dev/vo/myvol
Now reduce the filesystem by 200MB.
# resize2fs /dev/vo/myvol 200M
It is now possible to reduce the logical volume. #lvreduce /dev/vo/myvol -L 200M
Verify the Size of Logical Volume: lvdisplay /dev/vo/myvol
Verify that the size comes in online or not: df -h

 

Question 28

SIMULATION -
Configure iptables, there are two domains in the network, the address of local domain is 172.24.0.0/16 other domain is 172.25.0.0/16, now refuse domain
172.25.0.0/16 to access the server.

 


Suggested Answer: See explanation below.

 

iptables -F
service iptables save
iptables -A INPUT -s 172.25.0.0/16 -j REJECT
service iptables save
service iptables restart

 

Question 29

SIMULATION -
One Logical Volume named lv1 is created under vg0. The Initial Size of that Logical Volume is 100MB. Now you required the size 500MB. Make successfully the size of that Logical Volume 500M without losing any data. As well as size should be increased online.

 


Suggested Answer: See explanation below.

 

The LVM system organizes hard disks into Logical Volume (LV) groups. Essentially, physical hard disk partitions (or possibly RAID arrays) are set up in a bunch of equal sized chunks known as Physical Extents (PE). As there are several other concepts associated with the LVM system, let’s start with some basic definitions:
Physical Volume (PV) is the standard partition that you add to the LVM mix. Normally, a physical volume is a standard primary or logical partition. It can also be a
RAID array.
Physical Extent (PE) is a chunk of disk space. Every PV is divided into a number of equal sized PEs. Every PE in a LV group is the same size. Different LV groups can have different sized PEs.
Logical Extent (LE) is also a chunk of disk space. Every LE is mapped to a specific PE.
Logical Volume (LV) is composed of a group of LEs. You can mount a file system such as /home and /var on an LV.
Volume Group (VG) is composed of a group of LVs. It is the organizational group for LVM. Most of the commands that you’ll use apply to a specific VG.
Verify the size of Logical Volume: lvdisplay /dev/vg0/lv1
Verify the Size on mounted directory: df -h or df -h mounted directory name
Use: lvextend -L+400M /dev/vg0/lv1
ext2online -d /dev/vg0/lv1 to bring extended size online.
Again Verify using lvdisplay and df -h command.

 

Question 30

SIMULATION -
One Domain RHCE is configured in your lab, your domain server is server1.example.com. nisuser2001, nisuser2002, nisuser2003 user are created on your server
192.168.0.254:/rhome/stationx/nisuser2001. Make sure that when NIS user login in your system automatically mount the home directory. Home directory is separately shared on server /rhome/stationx/ where x is your Station number.

 


Suggested Answer: See explanation below.

 

use the authconfig –nisserver=<NIS SERVER> –nisdomain=<NIS DOMAIN> — update
Example: authconfig –niserver=192.168.0.254 –nisdomain=RHCE –update or system-config-authentication
Click on Enable NIS –
Type the NIS Domain: RHCE –
Type Server 192.168.0.254 then click on next and ok
You will get a ok message.
Create a Directory /rhome/stationx where x is your station number. vi /etc/auto.master and write at the end of file /rhome/stationx /etc/auto.home –timeout=60 vi /etc/auto.home and write
* -rw,soft,intr 192.168.0.254:/rhome/stationx/&
Note: please specify your station number in the place of x.
Service autofs restart –
Login as the nisuser2001 or nisuser2002 on another terminal will be Success. According to question, RHCE domain is already configured. We have to make a client of RHCE domain and automatically mount the home directory on your system. To make a member of domain, we use the authconfig with option or system- config authentication command. There a are lots of authentication server i.e NIS, LDAB, SMB etc. NIS is a RPC related Services, no need to configure the DNS, we should specify the NIS server address.
Here Automount feature is available. When user tried to login, home directory will automatically mount. The automount service used the /etc/auto.master file. On
/etc/auto.master file we specified the mount point the configuration file for mount point.

 

Question 31

SIMULATION -
Add a new logical partition having size 100MB and create the data which will be the mount point for the new partition.

 


Suggested Answer: See explanation below.

 

1. Use fdisk /dev/hda-> To create new partition.
2. Type n ->For New partitions
3. It will ask for Logical or Primary Partitions. Press l for logical.
4. It will ask for the Starting Cylinder: Use the Default by pressing Enter
Keys –
5. Type the size: +100M you can specify either Last cylinder of size here.
6. Press P to verify the partitions lists and remember the partitions name.
7. Press w to write on partitions table.
8. Either Reboot or use partprobe command.
9. Use mkfs -t ext3 /dev/hda?
OR –
1. mke2fs -j /dev/hda? ->To create ext3 filesystem.
2. vi /etc/fstab
3. Write:
/dev/hda? /data ext3 defaults 0 0
4. Verify by mounting on current sessions also:
mount /dev/hda? /data

 

Question 32

SIMULATION -
Configure a task: plan to run echo "file" command at 14:23 every day.

 


Suggested Answer: See explanation below.

 

(a) Created as administrator
# crontab -u natasha -e
23 14 * * * /bin/echo “file”
(b)Created as natasha
# su – natasha
$ crontab -e
23 14 * * * /bin/echo “file”

 

Question 33

SIMULATION -
Install the Kernel Upgrade.
Install suitable kernel update from:
http://server.domain11.example.com/pub/updates.
Following requirements must be met:
Updated kernel used as the default kernel of system start-up.
The original kernel is still valid and can be guided when system starts up.

 


Suggested Answer: See explanation below.

 

Using the browser open the URL in the question, download kernel file to root or home directory. uname ג€”r// check the current kernel version rpm ג€”ivh kernel-*.rpm vi /boot/grub.conf// check
Some questions are: Install and upgrade the kernel as required. To ensure that grub2 is the default item for startup.
Yum repo : http://content.example.com/rhel7.0/x86-64/errata
OR –
uname -r // check kernel
Yum-config-manager –add-repo=ג€http://content.example.com/rhel7.0/x86-64/ errataג€
Yum clean all –
Yum list kernel// install directly
Yum -y install kernel// stuck with it, do not pipe! Please do not pipe!
Default enable new kernel grub2-editenv list// check
Modify grub2-set-default ג€kernel full nameג€
Grub2-mkconfig ג€”o/boot/grub2/grub.cfg// Refresh

 

Question 34

SIMULATION -
Find the files owned by harry, and copy it to catalog: /opt/dir

 


Suggested Answer: See explanation below.

 

# cd /opt/
# mkdir dir
# find / -user harry -exec cp -rfp {} /opt/dir/ ;

 

Question 35

SIMULATION -
Create a user alex with a userid of 3400. The password for this user should be redhat.

 


Suggested Answer: See explanation below.

 

useradd -u 3400 alex
passwd alex
su -alex

 

Question 36

SIMULATION -
Create a volume group, and set the size is 500M, the size of single PE is 16M. Create logical volume named lv0 in this volume group, set size is 20 PE, make it as ext3 file system, and mounted automatically under data.

 


Suggested Answer: See explanation below.

 

fdisk /dev/vda
pvcreate /dev/vda3
vgcreate ג€”s 16M vg0 /dev/vda3
lvcreate ג€”n lv0 ג€”l 20 vg0
mkfs.ext3 /dev/mapper/vg0-lv0
mkdir /data
/etc/fstab:
/dev/mapper/vg0-lv0 /data ext3 defaults 0 0
mount ג€”a
mount | grep data

 

Question 37

SIMULATION -
Configure your Host Name, IP Address, Gateway and DNS.
Host name: dtop5.dn.ws.com -
IP Address: 172.28.10.5/4 -
Gateway: 172.28.10.1 -
DNS: 172.28.10.1 -

 


Suggested Answer: See explanation below.

 

1. Configure Host Name
vim /etc/sysconfig/network NETWORKING=yes HOSTNAME=dtop5.dn.ws.com GATEWAY=172.28.10.1
2. Configure IP Address, Gateway and DNS
Configure the network by Network Manager:
<img src=”https://www.examtopics.com/assets/media/exam-media/04216/0002400001.jpg” alt=”Reference Image” />
Note: Please remember to choose two options:
Connect automatically –
Available to all users –
Click “Apply”, save and exit, and restart your network services:
# Service network restart
3. Validate these profiles:
a) Check gateway: # vim / etc / sysconfig / network
NETWORKING=yes –
HOSTNAME=dtop5.dn.ws.com –
GATEWAY=172.28.10.1 –
b) Check Host Name: # vim /etc/hosts
<img src=”https://www.examtopics.com/assets/media/exam-media/04216/0002500001.png” alt=”Reference Image” />
c) Check DNS: # vim /etc/resolv.conf
# Generated by NetworkManager
Search dn.ws.com –
Nameserver 172.28.10.1 –
d) Check Gateway: # vim /etc/sysconfig/network-scripts/ifcfg-eth0
<img src=”https://www.examtopics.com/assets/media/exam-media/04216/0002600001.png” alt=”Reference Image” />

 

Question 38

SIMULATION -
Copy /etc/fstab to /var/tmp name admin, the user1 could read, write and modify it, while user2 without any permission.

 


Suggested Answer: See explanation below.

 

# cp /etc/fstab /var/tmp/
# chgrp admin /var/tmp/fstab
# setfacl -m u:user1:rwx /var/tmp/fstab
# setfacl -m u:user2:— /var/tmp/fstab
# ls -l
-rw-rw-r–+ 1 root admin 685 Nov 10 15:29 /var/tmp/fstab

 

Question 39

SIMULATION -
User mary must configure a task.
Requirement: The local time at 14:23 every day echo "Hello World.".

 


Suggested Answer: See explanation below.

 

crontab -u mary -e
23 14 * * * echo “Hello World.”

 

Question 40

SIMULATION -
Find all lines in the file /usr/share/dict/words that contain the string seismic. Put a copy of all these lines in their original order in the file /root/wordlist. /root/wordlist should contain no empty lines and all lines must be exact copies of the original lines in /usr/share/dict/words.

 


Suggested Answer: See explanation below.

 

grep seismic /usr/share/dict/words> /root/wordlist

 

Question 41

SIMULATION -
Your System is going use as a router for 172.24.0.0/16 and 172.25.0.0/16. Enable the IP Forwarding.
1. echo "1" >/proc/sys/net/ipv4/ip_forward
2. vi /etc/sysctl.conf net.ipv4.ip_forward=1

 


Suggested Answer: See explanation below.

 

/proc is the virtual filesystem, containing the information about the running kernel.
To change the parameter of running kernel you should modify on /proc. From Next reboot the system, kernel will take the value from /etc/sysctl.conf.

 

Question 42

SIMULATION -
Resize the logical volume vo and its filesystem to 290 MB. Make sure that the filesystem contents remain intact.
Note: Partitions are seldom exactly the same size requested, so a size within the range of 260 MB to 320 MiB is acceptable.

 


Suggested Answer: See explanation below.

 

df -hT
lvextend -L +100M /dev/vg0/vo
lvscan
xfs_growfs /home/ // home is LVM mounted directory
Note: This step is only need to do in our practice environment, you do not need to do in the real exam resize2fs /dev/vg0/vo // Use this comand to update in the real exam df -hT
OR –
e2fsck -f/dev/vg0/vo
umount /home
resize2fs /dev/vg0/vo required partition capacity such as 100M lvreduce -l 100M /dev/vg0/vo mount /dev/vg0/vo /home df ג€”Ht

 

Question 43

SIMULATION -
Configure autofs.
Configure the autofs automatically mount to the home directory of LDAP, as required: server.domain11.example.com use NFS to share the home to your system. This file system contains a pre configured home directory of user ldapuserX.
Home directory of ldapuserX is:
server.domain11.example.com /home/guests/ldapuser
Home directory of ldapuserX should automatically mount to the ldapuserX of the local /home/guests Home directory's write permissions must be available for users ldapuser1's password is password

 


Suggested Answer: See explanation below.

 

yum install -y autofs
mkdir /home/rehome
/etc/auto.master
/home/rehome/etc/auto.ldap
Keep then exit –
cp /etc/auto.misc /etc/auto.ldap
/etc/auto.ldap
ldapuserX -fstype=nfs,rw server.domain11.example.com:/home/guests/
Keep then exit –
systemctl start autofs
systemctl enable autofs
su – ldapuserX// test
If the above solutions cannot create files or the command prompt is -bash-4.2$, it maybe exist multi-level directory, this needs to change the server.domain11.example.com:/home/guests/ to server.domain11.example.com:/home/guests/ldapuserX. What is multi-level directory? It means there is a directory of ldapuserX under the /home/guests/ldapuserX in the questions. This directory is the real directory.

 

Question 44

SIMULATION -
Configure your NFS services. Share the directory by the NFS Shared services.

 


Suggested Answer: See explanation below.

 

/etc/init.d/rpcbind start
/etc/init.d/nfslock start
/etc/init.d/nfs start
chkconfig rpcbind on
chkconfig nfslock on
chkconfig nfs on
showmount -e localhost

 

Question 45

SIMULATION -
Add 3 users: harry, natasha, tom.
The requirements: The Additional group of the two users: harry, Natasha is the admin group. The user: tom's login shell should be non-interactive.

 


Suggested Answer: See explanation below.

 

# useradd -G admin harry
# useradd -G admin natasha
# useradd -s /sbin/nologin tom
# id harry;id Natasha (Show additional group)
# cat /etc/passwd
(Show the login shell)
OR –
# system-config-users

 

Question 46

SIMULATION -
There is a local logical volumes in your system, named with common and belong to VGSRV volume group, mount to the /common directory. The definition of size is 128 MB.
Requirement:
Extend the logical volume to 190 MB without any loss of data. The size is allowed between 160-160 MB after extending.

 


Suggested Answer: See explanation below.

 

lvextend -L 190M /dev/mapper/vgsrv-common resize2fs /dev/mapper/vgsrv-common

 

Question 47

SIMULATION -
According the following requirements, configure autofs service and automatically mount to user's home directory in the ldap domain.
- Instructor.example.com (192.168.0.254) has shared /home/guests/ldapuserX home directory to your system by over NFS export, X is your hostname number.
- LdapuserX's home directory is exist in the instructor.example.com: /home/ guests/ldapuserX
- LdapuserX's home directory must be able to automatically mount to /home/ guests/ldapuserX in your system.
- Home directory have write permissions for the corresponding user.
However, you can log on to the ldapuser1 - ldapuser99 users after verification. But you can only get your corresponding ldapuser users. If your system's hostname is server1.example.com, you can only get ldapuser1's home directory.

 


Suggested Answer: See explanation below.

 

mkdir ג€”p /home/guests
cat /etc/auto.master:
/home/guests /etc/auto.ldap
cat /etc/auto.ldap:
ldapuser1 -rw instructor.example.com:/home/guests/ldapuser1
automatically mount all the user’s home directory #* -rw instructor.example.com:/home/guests/&

 

Question 48

SIMULATION -
Create a backup file named /root/backup.tar.bz2, which contains the contents of /usr/local, bar must use the bzip2 compression.

 


Suggested Answer: See explanation below.

 

cd /usr/local
tar -jcvf /root/backup.tar.bz2*
mkdir /test
tar -jxvf /root/backup.tar.bz2 -C /test/

 

Question 49

SIMULATION -
Create a logical volume -
Create a new logical volume as required:
Name the logical volume as database, belongs to datastore of the volume group, size is 50 PE.
Expansion size of each volume in volume group datastore is 16MB.
Use ext3 to format this new logical volume, this logical volume should automatically mount to /mnt/database

 


Suggested Answer: See explanation below.

 

fdisk -cu /dev/vda// Create a 1G partition, modified when needed partx ג€”a /dev/vda pvcreate /dev/vdax vgcreate datastore /dev/vdax ג€”s 16M lvcreateג€” l 50 ג€”n database datastore mkfs.ext3 /dev/datastore/database mkdir /mnt/database mount /dev/datastore/database /mnt/database/ df ג€”Th vi /etc/fstab
/dev/datastore /database /mnt/database/ ext3 defaults 0 0 mount ג€”a
Restart and check all the questions requirements.

 

Question 50

SIMULATION -
There are two different networks 192.168.0.0/24 and 192.168.1.0/24. Where 192.168.0.254 and
192.168.1.254 IP Address are assigned on Server. Verify your network settings by pinging 192.168.1.0/24 Network's Host.

 


Suggested Answer: See explanation below.

 

vi /etc/sysconfing/network NETWORKING=yes HOSTNAME=station?.example.com GATEWAY=192.168.0.254 service network restart
2.vi /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE=eth0
ONBOOT=yes –
BOOTPROTO=static –
IPADDR=X.X.X.X –
NETMASK=X.X.X.X –
GATEWAY=192.168.0.254 –
ifdown eth0
ifup eth0

 

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