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Vendor: Red Hat
Exam Code: EX200
Exam Name: Red Hat Certified System Administrator (RHCSA) (v6+v7 version)
Part C V6 Exam B Questions –
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------------------------------------------ For v6 Exam B ------------------------------------------RHCE Test Configuration Instructions You will be working with two systems for this exam. One system is the physical system at which you are seated. The other system is a virtual system which is hosted on your physical system and has been pre-installed with Red Hat Enterprise Linux. The default firewall configuration has been enabled. Unless otherwise specified, all exam items are to be performed on the virtual system onl y. You do not have root access to the physical host system but you may use it as necessary to test services that you may be required to configure on your virtual system. Be aware that you are not permitted to communicate with other examinees during this exam. You are also prohibited from connecting to the systems of other examinees. The testing system and the network will be monitored, and misuse of either will result in a grade of zero on the exam. Your virtual system should have the following network configuration:
* Hostname: host.domain11.example.com * IP address: 192.168.0.100+X * Netmask: 255.255.255.0 * Gateway: 192.168.0.254 * Name server: 192.168.0.254
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Free VCE and PDF Exam Dumps from PassLeader Your virtual system will be rebooted before it is graded, so make sure that all changes you implement are persistent across reboots. You should also be aware the scoring items will be evaluated by whether they work as specified. Consequently, a correctly configured networking service will earn no points if networking itself is broken. Password Recovery and initial setting Solution: go to single usermode with the help of grub #passwd Note:- if the command does not execute #lokkit
--disabled
#lokkit
--selinux=permissive
#passwd change the root password according to mentioned question. IP, DNS, Netmask, Gateway setting #setup Select network configuration and then set the IP, DNS, Netmask, Gateway according to the question paper. #service network restart ------------------------------------------------------------------------------------------------------- ------------------------- About password cracking, we need to install a graphical interface and crack the root password by ourselves during the RHCSA exam, amend the root password in accordance with the questions requirements. Both single user mode and re.break can be used. re.break steps: delete console=ttys0,115200n8, add rd.break at the end entering the following commands after entering the exchange mode: mount
-o remount,rw /sysroot
chroot /sysroot passwd touch
/.autorelabel
exit reboot
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Free VCE and PDF Exam Dumps from PassLeader Installation of the graphical interface: You may need to install a graphical interface by yourself in exam, install in accordance with the following commands in case that startx cannot be started: yum -y install
xorg*
yum -y install
gnome*
yum -y install
glx*
startx or init 5 Finish the password modification, note that here is exam using virtual machine password modification, rather than the physical machine password. About IP setting, please check the other information in the exam questions to learn the virtual machine IP setting and the host name information. hostnamectl set-hostname station.domain11.example.com nmcli connection modify eno16777736 ipv4.method manual nmcli connection modify eno16777736 ipv4.addresses '172.24.11.10/24 172.24.11.254' nmcli connection modify eno16777736 ipv4.dns '172.24.11.250' nmcli connection up eno16777736 nmcli con show eno16777736 | grep ipv4 host server.domain11.example.com route -n nm-connection-editor graphical interface can also be used to amend IP. Start to answer questions after finishing to modify the above information. --------------------------------------------------------------------------------------------------------------------------------Question 76 SELinux must be running in the Enforcing mode. Answers:
Getenforce setenforce 1
// Check the current mode of SELinux // SELinux runs in enforcing mode
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// Check
vim /etc/selinux/config selinux=enforcing
// To temporarily enable SELinux
:wq sestatus
Question 77 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. Answers:
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 78 Resize the logical volume vo and its filesystem to 290 MB. Make sure that the filesystem contents remain intact. Note: Partitions are seldom the same size requested, so a size within the range of 260 MB to 320 MB is acceptable. Answers:
df -hT lvextend -L +100M /dev/vg0/vo
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// home is LVM mounted directory
xfs_growfs /home/
Note: This step is only need to do in our practice environment, you
don’t need
to do in the real
exam resize2fs /dev/vg0/vo
// Use this command 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 –Ht
Question 79 Create the following users, groups, and group memberships: A group named adminuser A user natasha who belongs to adminuser as a seco ndary group A user harry who also belongs to adm inuser 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 Answers:
# 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
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Free VCE and PDF Exam Dumps from PassLeader # passwd harry # passwd sarrah Question 80 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 can read and write /var/tmp/fstab. the user harry can neither write nor read /var/tmp/fstab. all other users (current or future) can read /var/tmp/fstab. Answers:
# 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 wo n'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 81
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Free VCE and PDF Exam Dumps from PassLeader Set cronjob for user natasha to do /bin/echo hiya at 14:23 Answers:
# crontab -e -u natasha 23 14 * * * /bin/echo hiya :wq!
Question 82 Create a collaborative directory /home/admins with the following characteristics: Group ownership of /home/admins is adminuser. The directory should be readable, writable, and accessible to members of adminuser, but not to any other user. (It is understood that root has access to all files and directories on the system.) Files created in /home/admins automatically have group ownership set to the adminuser group. Answers:
mkdir /home/admins chgrp -R adminuser /home/admins chmod
g+w /home/admins
chmod
g+s /home/admins
Question 83 … …
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