The Replace Guide To EX200 Free Practice Test

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NEW QUESTION 1
CORRECT TEXT
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


Solution:
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.

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 2
CORRECT TEXT
The firewall must be open.


Solution:
/etc/init.d/iptables start
iptables -F
iptables -X
iptables -Z
/etc/init.d/iptables save
chkconfig iptables on

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 3
CORRECT TEXT
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.


Solution:
Yum-config-manager --add-repo=http://content.example.com/rhel7.0/x86-64/dvd” 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.

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 4
CORRECT TEXT
Your System is configured in 192.168.0.0/24 Network and your nameserver is 192.168.0.254. Make successfully resolve to server1.example.com.


Solution:
nameserver is specified in question,
* 1. Vi /etc/resolv.conf
nameserver 192.168.0.254
* 2. host server1.example.com

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 5
CORRECT TEXT
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.


Solution:

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.

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 6
CORRECT TEXT
Configure a task: plan to run echo hello command at 14:23 every day.


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

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 7
CORRECT TEXT
Install the appropriate kernel update from http://server.domain11.example.com/pub/updates.
The following criteria must also be met:
The updated kernel is the default kernel when the system is rebooted The original kernel remains available and bootable on the system


Solution:
✑ ftp server.domain11.example.com Anonymous login
ftp> cd /pub/updates ftp> ls ftp> mget kernel* ftp> bye
✑ rpm -ivh kernel*
✑ vim /etc/grub.conf
Check the updatted kernel is the first kernel and the orginal kernel remains available. set default=0
wq!

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 8
CORRECT TEXT
Update the kernel from ftp://instructor.example.com/pub/updates. According the following requirements:
✑ The updated kernel must exist as default kernel after rebooting the system.
✑ The original kernel still exists and is available in the system.


Solution:
rpm -ivh kernel-firm…
rpm -ivh kernel...

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 9
CORRECT TEXT
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.)


Solution:
# 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)

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 10
CORRECT TEXT
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.


Solution:
mkdir –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/&

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 11
CORRECT TEXT
Configure a cron Task.
User natasha must configure a cron job, local time 14:23 runs and executes: */bin/echo hiya every day.


Solution:
crontab –e –u natasha
23 14/bin/echo hiya
crontab -l -u natasha // view
systemctlenable crond
systemcdlrestart crond

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 12
CORRECT TEXT
Part 1 (on Node1 Server)
Task 14 [Managing SELinux Security]
You will configure a web server running on your system serving content using a non- standard port (82)


Solution:
*
[root@node1 ~]# curl http://node1.domain15.example.com
curl: (7) Failed to connect to node1.domain15.example.com port 80: Connection refused
[root@node1 ~]# yum install httpd
[root@node1 ~]# systemctl enable --now httpd
Created symlink /etc/systemd/system/multi-user.target.wants/httpd.service
/usr/lib/systemd/system/httpd.service.
[root@node1 ~]# systemctl start httpd
[root@node1 ~]# systemctl status httpd
Status: "Running, listening on: port 80"
*
[root@node1 ~]# wget http://node1.domain15.example.com
2021-03-23 13:27:28 ERROR 403: Forbidden.
[root@node1 ~]# semanage port -l | grep http
http_port_t tcp 80, 81, 443, 488, 8008, 8009, 8443, 9000
[root@node1 ~]# semanage port -a -t http_port_t -p tcp 82
[root@node1 ~]# semanage port -l | grep http
http_port_t tcp 82, 80, 81, 443, 488, 8008, 8009, 8443, 9000
[root@node1 ~]# firewall-cmd --zone=public --list-all
[root@node1 ~]# firewall-cmd --permanent --zone=public --add-port=82/tcp
[root@node1 ~]# firewall-cmd --reload
[root@node1 ~]# curl http://node1.domain15.example.com
OK
*
root@node1 ~]# wget http://node1.domain15.example.com:82
Connection refused.
[root@node1 ~]# vim /etc/httpd/conf/httpd.conf Listen 82
[root@node1 ~]# systemctl restart httpd
[root@node1 ~]# wget http://node1.domain15.example.com:82
2021-03-23 13:31:41 ERROR 403: Forbidden.
[root@node1 ~]# curl http://node1.domain15.example.com:82
OK

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 13
CORRECT TEXT
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.


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

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 14
CORRECT TEXT
Create a user alex with a userid of 3400. The password for this user should be redhat.


Solution:
✑ useradd -u 3400 alex
✑ passwd alex
✑ su -alex

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 15
CORRECT TEXT
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.


Solution:
✑ 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

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 16
CORRECT TEXT
Make on data that only the user owner and group owner member can fully access.


Solution:
✑ chmod 770 /data
✑ Verify using : ls -ld /data Preview should be like:
drwxrwx--- 2 root sysadmin 4096 Mar 16 18:08 /data
To change the permission on directory we use the chmod command.
According to the question that only the owner user (root) and group member (sysadmin) can fully access the directory so: chmod 770 /data

Does this meet the goal?
  • A. Yes
  • B. Not Mastered

Answer: A

NEW QUESTION 17
......

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