EX200 RedHat Red Hat Certified System Administrator - RHCSA (8.2) Free Practice Exam Questions (2025 Updated)

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

getenforce // Check the current mode of SELinux // SELinux runs in enforcing mode // Check

getenforce 1

getenforce

vim /etc/selinux/config selinux=enforcing // To temporarily enable SELinux

wg

sestatus

*

[root@node1 ~]# useradd -u 3945 fred

[root@node1 ~]# echo "iamredhatman" | passwd --stdin fred

Changing password for user fred.

passwd: all authentication tokens updated successfully

/etc/sysconfig/selinux

SELINUX=enforcing

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.

# cat /etc/testfile | while read line;

do

echo $line | grep abcde | tee -a /tmp/testfile

done

OR

grep `abcde' /etc/testfile > /tmp/testfile

# fdisk /dev/sda

p

(check Partition table)

n

(create new partition: press e to create extended partition, press p to create the main partition, and the extended partition is further divided into logical partitions) Enter

+2G

t

l

W

partx -a /dev/sda

partprobe

mkswap /dev/sda8

Copy UUID

swapon -a

vim /etc/fstab

UUID=XXXXX swap swap defaults 0 0

(swapon -s)

chmod 770 /archive

Verify using : ls -ld /archive Preview should be like:

drwxrwx--- 2 root sysuser 4096 Mar 16 18:08 /archive

To change the permission on directory we use the chmod command. According to the question that only the owner user (root) and group member (sysuser) can fully access the directory so: chmod 770 /archive

cd;umount /shrink

e2fsck -f /dev/mapper/vgsrv-shrink

resize2fs /dev/mapper/vgsrv-shrink 220M

lvreduce -L 220M /dev/mapper/vgsrv-shrink

mount -a

*

[root@node2 ~]# lsblk

NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT

vdb 252:16 0 5G 0 disk

└─vdb1 252:17 0 4.2G 0 part

└─vgrz-lvrz 253:2 0 4.1G 0 lvm /datarz

vdc 252:32 0 5G 0 disk

vdd 252:48 0 5G 0 disk

vde 252:64 0 10G 0 disk

[root@node2 ~]# parted /dev/vdc mklabel msdos

[root@node2 ~]# parted /dev/vdc mkpart primary 1MiB 4200MiB

[root@node2 ~]# parted /dev/vdc set 1 lvm on

*

[root@node2 ~]# udevadm settle

[root@node2 ~]# pvcreate /dev/vdc1

Physical volume "/dev/vdc1" successfully created.

[root@node2 ~]# vgcreate -s 16M datavg /dev/vdc1

Volume group "datavg" successfully created

[root@node2 ~]# lvcreate -n datalv -L 4000M datavg

Logical volume "datalv" created.

[root@node2 ~]# mkfs.xfs /dev/datavg/datalv

[root@node2 ~]# mkdir /data

[root@node2 ~]# blkid

/dev/mapper/datavg-datalv: UUID="7397a292-d67d-4632-941e-382e2bd922ce" BLOCK_SIZE="512" TYPE="xfs"

*

[root@node2 ~]# vim /etc/fstab

UUID=7397a292-d67d-4632-941e-382e2bd922ce /data xfs defaults 0 0

[root@node2 ~]# mount UUID=7397a292-d67d-4632-941e-382e2bd922ce /data

[root@node2 ~]# reboot

[root@node2 ~]# df -hT

Filesystem Type Size Used Avail Use% Mounted on

/dev/mapper/datavg-datalv xfs 3.9G 61M 3.9G 2% /data

* [root@node1 ~]# groupadd sharegrp

[root@node1 ~]# useradd harry

[root@node1 ~]# useradd natasha

[root@node1 ~]# usermod -aG sharegrp harry

[root@node1 ~]# usermod -aG sharegrp natasha

[root@node1 ~]# useradd -s /sbin/nologin copper

[root@node1 ~]# echo "redhat" | passwd --stdin harry

[root@node1 ~]# echo "redhat" | passwd --stdin natasha

[root@node1 ~]# echo "redhat" | passwd --stdin copper

### For Checking ###

[root@node1 ~]# su - copper

This account is currently not available.

[root@node1 ~]# su - natasha

[root@node1 ~]# id

[root@node1 ~]# su - harry

[root@node1 ~]# id

/etc/yum.repos.d/base.repo

[base]

name=base

baseurl=http://instructor.example.com/pub/rhel6/dvd

gpgcheck=0

yum list

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.

*

[root@node1 ~]# nmcli connection show

[root@node1 ~]# nmcli connection add con-name static ifname enp1s0 type ethernet ipv4.addresses 172.25.15.10/24 ipv4.gateway 172.25.15.2 ipv4.dns 172.25.15.2

[root@node1 ~]# nmcli connection modify static ipv4.method manual connection.autoconnect yes

[root@node1 ~]# nmcli connection modify static +ipv4.addresses 10.0.0.5/24

[root@node1 ~]# nmcli connection up static

[root@node1 ~]# nmcli connection show

[root@node1 ~]# hostnamectl set-hostname node1.domain15.example.com

[root@node1 ~]# hostnamectl status

[root@node1 ~]# nmcli connection down static

*

[root@node1 ~]# nmcli connection up static

[root@node1 ~]# ip addr show

[root@node1 ~]# reboot

### For checking ###

[root@node1 ~]# ip addr show

[root@node1 ~]# netstat -nr

[root@node1 ~]# cat /etc/resolv.conf

*

[root@node1 ~]# cat /etc/passwd | grep nologin > /root/strings

[root@node1 ~]# cat /root/strings

bin:x:1:1:bin:/bin:/sbin/nologin

daemon:x:2:2:daemon:/sbin:/sbin/nologin

adm:x:3:4:adm:/var/adm:/sbin/nologin

lp:x:4:7:lp:/var/spool/lpd:/sbin/nologin

mail:x:8:12:mail:/var/spool/mail:/sbin/nologin

# groupadd -g 600 admin

rpm -ivh kernel-firm…

rpm -ivh kernel...

# useradd -u 601 -s /sbin/nologin user1

# passwd user1

redhat

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