[Jul-2022] EX200 exam torrent RedHat study guide [Q28-Q48]

[Jul-2022] EX200 exam torrent RedHat study guide

Use Valid New EX200 Test Notes & EX200 Valid Exam Guide

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What Is RHCSA Exam?

To earn the Red Hat Certified System Administrator, candidates will have to pass one exam coded EX200. This test will evaluate a candidate's knowledge and abilities with system administration that is found across many different types of environments and deployment scenarios. The skills tested in this exam will act as the foundation for system administration across all Red Hat products. In particular, EX200 exam revolves around Red Hat Enterprise Linux 8.2 and is 3 hours long, with the registration fee being USD 400. When it comes to the prerequisites of this exam, it is recommended to take both the official RH124 and RH134 courses before attempting the final test. Passing EX200 will bring home the Red Hat Certified System Administrator certificate.

NEW QUESTION 28
Configure a task: plan to run echo hello command at 14:23 every day.

Answer:

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

NEW QUESTION 29
Make on data that only the user owner and group owner member can fully access.

Answer:

Explanation:
see explanation below.
Explanation
* 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

NEW QUESTION 30
Upgrading the kernel as 2.6.36.7.1, and configure the system to Start the default kernel, keep the old kernel available.

Answer:

Explanation:
# cat /etc/grub.conf
# cd /boot
# lftp it
# get dr/dom/kernel-xxxx.rpm
# rpm -ivh kernel-xxxx.rpm
# vim /etc/grub.conf
default=0

NEW QUESTION 31
Configure your NFS services. Share the directory by the NFS Shared services.

Answer:

Explanation:
/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

NEW QUESTION 32
SELinux must run in force mode.

Answer:

Explanation:
see explanation below.
Explanation
/etc/sysconfig/selinux
SELINUX=enforcing

NEW QUESTION 33
How does Prometheus gather information about monitored hosts and services?

A. It queries a relational database for metrics written to the database by monitored applications.
B. It implements the ICMP and SNMP protocols to ping and query remote services.
C. It opens a webhook where monitored applications have to submit various metrics.
D. It runs scripts on the Prometheus server which perform tests and return various metrics.
E. It uses HTTP to retrieve JSON encoded metrics from the monitored objects.

Answer: D

Explanation:
Explanation/Reference:
Reference https://dzone.com/articles/monitoring-with-prometheus

NEW QUESTION 34
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".

Answer:

Explanation:
See explanation below.
Explanation/Reference:
Explanation: system-config-authentication &

NEW QUESTION 35
Who ever creates the files/directories on archive group owner should be automatically should be the same group owner of archive.

Answer:

Explanation:
chmod g+s /archive
Verify using: ls -ld /archive Permission should be like:
drwxrws--- 2 root sysuser 4096 Mar 16 18:08 /archive
If SGID bit is set on directory then who every users creates the files on directory group owner automatically the owner of parent directory.
To set the SGID bit: chmod g+s directory
To Remove the SGID bit: chmod g-s directory

NEW QUESTION 36
Create the user named eric and deny to interactive login.

Answer:

Explanation:
see explanation below.
Explanation
* 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.

NEW QUESTION 37
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.

Answer:

Explanation:
see explanation below.
Explanation
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/&

NEW QUESTION 38
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.

Answer:

Explanation:
see explanation below.
Explanation
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.

NEW QUESTION 39
Create User Account.
Create the following user, group and group membership:
Adminuser group
User natasha, using adminuser as a sub group
User Harry, also using adminuser as a sub group
User sarah, can not access the SHELL which is interactive in the system, and is not a member of adminuser, natasha,harry,sarah password is redhat.

Answer:

Explanation:
groupadd adminuser
useradd natasha -G adminuser
useradd haryy -G adminuser
useradd sarah -s /sbin/nologin
Passwd user name // to modify password or echo redhat | passwd --stdin user name id natasha // to view user group.

NEW QUESTION 40
The firewall must be open.

Answer:

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

NEW QUESTION 41
Part 1 (on Node1 Server)
Task 7 [Accessing Linux File Systems]
Find all the files owned by user natasha and redirect the output to /home/alex/files.
Find all files that are larger than 5MiB in the /etc directory and copy them to /find/largefiles.

Answer:

Explanation:
[root@node1 ~]# find / -name natasha -type f > /home/natasha/files
[root@node1 ~]# cat /home/natasha/files
/var/spool/mail/natasha
/mnt/shares/natasha
[root@node1 ~]# mkdir /find
[root@node1 ~]# find /etc -size +5M > /find/largefiles
[root@node1 ~]# cat /find/largefiles
/etc/selinux/targeted/policy/policy.31
/etc/udev/hwdb.bin

NEW QUESTION 42
Which configuration option in the Ansible inventory is issued control privilege escalation of the remote user?

A. sudo
B. become
C. priv_user
D. super
E. elevate

Answer: B

Explanation:
Explanation/Reference:
Reference https://docs.ansible.com/ansible/2.6/user_guide/become.html

NEW QUESTION 43
Part 1 (on Node1 Server)
Task 9 [Managing Files from the Command Line]
Search the string nologin in the /etc/passwd file and save the output in /root/strings

Answer:

Explanation:
* [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

NEW QUESTION 44
Find the rows that contain abcde from file /etc/testfile, and write it to the file/tmp/testfile, and the sequence is requested as the same as /etc/testfile.

Answer:

Explanation:
Answer see in the explanation.
Explanation/Reference:
# cat /etc/testfile | while read line;
do
echo $line | grep abcde | tee -a /tmp/testfile
done
OR
grep `abcde' /etc/testfile > /tmp/testfile

NEW QUESTION 45
Part 2 (on Node2 Server)
Task 7 [Implementing Advanced Storage Features]
Create a thin-provisioned filesystem with the name think_fs from a pool think_pool using the devices.
The filesystem should be mounted on /strav and must be persistent across reboot

Answer:

Explanation:
* [root@node2 ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
vdd 252:48 0 5G 0 disk
vde 252:64 0 10G 0 disk
└─vdo1 253:4 0 50G 0 vdo /vbread
[root@node2 ~]# yum install stratis* -y
[root@node2 ~]# systemctl enable --now stratisd.service
[root@node2 ~]# systemctl start stratisd.service
[root@node2 ~]# systemctl status stratisd.service
[root@node2 ~]# stratis pool create think_pool /dev/vdd
[root@node2 ~]# stratis pool list
Name Total Physical Properties
think_pool 5 GiB / 37.63 MiB / 4.96 GiB ~Ca,~Cr
* [root@node2 ~]# stratis filesystem create think_pool think_fs
[root@node2 ~]# stratis filesystem list
Pool Name Name Used Created Device UUID
think_pool think_fs 546 MiB Mar 23 2021 08:21 /stratis/think_pool/think_fs ade6fdaab06449109540c2f3fdb9417d
[root@node2 ~]# mkdir /strav
[root@node2 ~]# lsblk
[root@node2 ~]# blkid
/dev/mapper/stratis-1-91ab9faf36a540f49923321ba1c5e40d-thin-fs-ade6fdaab06449109540c2f3fdb9417d: UUID="ade6fdaa-b064-4910-9540-c2f3fdb9417d" BLOCK_SIZE="512" TYPE="xfs"
* [root@node2 ~]# vim /etc/fstab
UUID=ade6fdaa-b064-4910-9540-c2f3fdb9417d /strav xfs defaults,x-systemd.requires=stratisd.service 0 0
[root@node2 ~]# mount /stratis/think_pool/think_fs /strav/
[root@node2 ~]# df -hT
/dev/mapper/stratis-1-91ab9faf36a540f49923321ba1c5e40d-thin-fs-ade6fdaab06449109540c2f3fdb9417d xfs 1.0T 7.2G 1017G 1% /strav

NEW QUESTION 46
Locate all the files owned by ira and copy them to the / root/findresults directory.

Answer:

Explanation:
# find / -user ira > /root/findresults (if /root/findfiles is a file)
# mkdir -p /root/findresults
# find / -user ira -exec cp -a {} /root/findresults\; [ if /root/findfiles is a directory] ls /root/findresults

NEW QUESTION 47
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

Answer:

Explanation:
see explanation below.
Explanation
* 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:

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

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