EX200 Certification Exam Dumps Questions in here [Jul-2022]
Updated EX200 Exam Practice Test Questions
Red Hat EX200: Exam topics
The EX200 certification exam covers 10 main topics that you need to master before taking the test. Thus, you should know the following details of the exam content:
- Managing Basic Networking
The subtopics of this objective include your understanding of how to configure hostname resolution, IPv4 & IPv6 addresses, and network services to start automatically at boot. Your skills in restricting network access with the use of firewall-cmd/firewall are also one of the important abilities to possess.
- Creating and Configuring File Systems
To succeed in this objective, you need to have expertise in configuring disk compression, extending existing logical volumes, managing layered storage, as well as diagnosing and correcting file permission problems. You should also know how to mount and unmount network file systems with the use of NFS, configure and create the set-GID directories, and have the ability to mount, create, use, and unmount ext4, xfs, and vfat file systems.
- Managing Security
In this section, there will be the evaluation of your knowledge of how to list and identify process context and SELinux file, address and diagnose routine SELinux policy violations, and use boolean settings to modify system SELinux settings. You need to know about the configuration of firewall settings with the use of firewall-cmd/firewalld and key-based authentication for SSH as well. Restoring default file contexts and setting the enforcing and permissive modes for SELinux are also the skills you should have.
- Configuring Local Storage
This topic will test your skills in creating and deleting logical volumes, adding new partitions and logical volumes, swapping to a system non-destructively, and assigning physical volumes to volume groups. It is also important to know how to create, list, and delete partitions on GPT and MBR disks as well as how to configure systems to mount the file systems at boot by universally UUID or label.
- Operating Running Systems
This area requires that you have knowledge of how to manage tuning profiles, preserve system journals, securely transfer files between systems, and adjust process scheduling. You will be able to answer the questions related to the interruption of the boot process in order to gain access to a system, identification of the memory/CPU intensive processes and killing of these processes, as well as adjustment of the process scheduling. This domain also evaluates your knowledge of how to shut down, boot, and reboot a system normally.
- Creating Simple Shell Scripts
This section covers your full understanding of the usage of Looping constructs to process file and command-line input, script inputs, output of shell commands within a script, and shell command exit codes. Also, you should know how to conditionally execute code.
- Managing Users and Groups
The domain covers your skills in creating, deleting, and modifying local groups, group memberships, and local user accounts. If you know how to configure superuser access and adjust password aging and change passwords for local user accounts, you will be able to answer the questions from this area.
- Deploying, Configuring, and Maintaining Systems
For this subject, you need to have skills in scheduling tasks using cron and at, configuring the time service clients, working with package module streams, as well as starting and stopping services and configuring them to start automatically at boot. It is also essential to know how to modify the system bootloader and configure systems to boot into a specific target automatically. Your ability to update and install software packages from a remote repository, Red Hat Network, or from the local file system will also define your overall result.
- Understanding and Using Essential Tools
In this domain, it is important to know how to use regular and grep expressions to analyze text, create soft and hard links, use input-output redirection, and log in the users and switch them in multiuser targets. It also includes your expertise in accessing the remote systems with the use of SSH and shell prompt and issue commands with correct syntax. Your ability to unpack, compress, uncompress, and archive files with the use of star, tar, bzip2, and gzip will be crucial.
Role of Red Hat Certified Engineer (EX200) Exam
Red Hat Certified Engineer (EX200) confirms the mindset, skills, and tasks needed to successfully provide consulting and implementation services across a broad range of Red Hat products and technologies for enterprise computing environments. Closest LPI certification. Red Hat Certified Engineer (EX200) confirms the possession of in-depth knowledge of the specific skills required for system administration, network administration, storage administration, and server management on Red Hat Enterprise Linux 6 systems. Processes, tools, and utilities related to enterprise computing. Proven expertise in designing complex enterprise-class Linux systems.
Red Hat Certified Engineer (EX200) confirms the ability to provide advanced technical guidance for reimplementations of existing complex Red Hat Enterprise Linux 6 systems. Regularly engaged in providing technical support for an enterprise-class Red Hat Enterprise Linux system. Focus on system administration, network administration, storage administration, and server management which are also covered in our Red Hat EX200 Dumps. Recommended for candidates who want to stay current with the latest products and technologies in the Red Hat portfolio. Professionalism, integrity, and commitment to professional standards.
NEW QUESTION 27
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.
Answer:
Explanation:
See explanation below.
Explanation/Reference:
Explanation:
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
NEW QUESTION 28
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.
Answer:
Explanation:
below
iptables -F
service iptables save
iptables -A INPUT -s 172.25.0.0/16 -j REJECT
service iptables save
service iptables restart
NEW QUESTION 29
Create a catalog under /home named admins. Its respective group is requested to be the admin group. The group users could read and write, while other users are not allowed to access it. The files created by users from the same group should also be the admin group.
Answer:
Explanation:
# cd /home/
# mkdir admins /
# chown .admin admins/
# chmod 770 admins/
# chmod g+s admins/
NEW QUESTION 30
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.
Answer:
Explanation:
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
NEW QUESTION 31
SIMULATION
A YUM source has been provided in the
http://instructor.example.com/pub/rhel6/dvd
Configure your system and can be used normally.
Answer:
Explanation:
See explanation below.
Explanation/Reference:
Explanation:
/etc/yum.repos.d/base.repo
[base]
name=base
baseurl=http://instructor.example.com/pub/rhel6/dvd
gpgcheck=0
yum list
NEW QUESTION 32
Configure your Host Name, IP Address, Gateway and DNS.
Host name: station.domain40.example.com
/etc/sysconfig/network
hostname=abc.com
hostname abc.com
IP Address:172.24.40.40/24
Gateway172.24.40.1
DNS:172.24.40.1
Answer:
Explanation:
Answer see in the explanation.
Explanation/Reference:
# cd /etc/syscofig/network-scripts/
# ls
# vim ifcfg-eth0 (Configure IP Address, Gateway and DNS) IPADDR=172.24.40.40 GATEWAY=172.24.40.1
DNS1=172.24.40.1
# vim /etc/sysconfig/network
(Configure Host Name)
HOSTNAME= station.domain40.example.com
OR
Graphical Interfaces:
System->Preference->Network Connections (Configure IP Address, Gateway and DNS) Vim /etc/ sysconfig/network
(Configure Host Name)
NEW QUESTION 33
Create a user alex with a userid of 3400. The password for this user should be redhat.
Answer:
Explanation:
see explanation below.
* useradd -u 3400 alex
* passwd alex
* su -alex
NEW QUESTION 34
Which of the following HTTP methods are used by REST? (Choose three correct answers.)
- A. DELETE
- B. CREATE
- C. REPLACE
- D. PUT
- E. GET
Answer: A,D,E
Explanation:
Explanation/Reference:
Reference https://restfulapi.net/http-methods/
NEW QUESTION 35
SIMULATION
Configure your NFS services. Share the directory by the NFS Shared services.
Answer:
Explanation:
See explanation below.
Explanation/Reference:
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 36
Create a backup
Create a backup file named /root/backup.tar.bz2, contains the content of /usr/local, tar must use bzip2 to compress.
Answer:
Explanation:
cd /usr/local
tar -jcvf /root/backup.tar.bz2
mkdir /test
tar -jxvf /root/backup.tar.bz2 -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 -j to -z.
NEW QUESTION 37
Upgrade the kernel, start the new kernel by default. kernel download from this address:
ftp://server1.domain10.example.com/pub/update/new.kernel
Answer:
Explanation:
see explanation below.
Explanation
Download the new kernel file and then install it.
[root@desktop8 Desktop]# ls
kernel-2.6.32-71.7.1.el6.x86_64.rpm
kernel-firmware-2.6.32-71.7.1.el6.noarch.rpm
[root@desktop8 Desktop]# rpm -ivh kernel-*
Preparing... ###########################################
[100%]
1:kernel-firmware
########################################### [ 50%]
2:kernel
########################################### [100%]
Verify the grub.conf file, whether use the new kernel as the default boot. [root@desktop8 Desktop]# cat
/boot/grub/grub.conf default=0
title Red Hat Enterprise Linux Server (2.6.32-71.7.1.el6.x86_64)
root (hd0,0)
kernel /vmlinuz-2.6.32-71.7.1.el6.x86_64 ro root=/dev/mapper/vol0-root rd_LVM_LV=vol0/root rd_NO_LUKS rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us crashkernel=auto rhgb quiet initrd /initramfs-2.6.32-71.7.1.el6.x86_64.img
NEW QUESTION 38
Create a Shared Directory.
Create a shared directory /home/admins, make it has the following characteristics:
/home/admins belongs to group adminuser
This directory can be read and written by members of group adminuser Any files created in /home/ admin, group automatically set as adminuser.
Answer:
Explanation:
mkdir /home/admins
chgrp -R adminuser /home/admins
chmodg+w /home/admins
chmodg+s /home/admins
NEW QUESTION 39
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/dat a. And the size of the floating range should set between 380M and 400M.
Answer:
Explanation:
# 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
NEW QUESTION 40
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.
Answer:
Explanation:
see explanation below.
Explanation
below
* iptables -F
* service iptables save
* iptables -A INPUT -s 172.25.0.0/16 -j REJECT
* service iptables save
* service iptables restart
NEW QUESTION 41
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.
Answer:
Explanation:
See explanation below.
Explanation/Reference:
Explanation: Using the browser open the URL in the question, download kernel file to root or home directory.
uname -r// check the current kernel version
rpm -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="http://content.example.com/rhel7.0/x86-64/ errata" 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 "kernel full name"
Grub2-mkconfig -o/boot/grub2/grub.cfg// Refresh
NEW QUESTION 42
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
Answer:
Explanation:
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!
NEW QUESTION 43
Set cronjob for user natasha to do /bin/echo hiya at 14:23.
Answer:
Explanation:
see explanation below.
Explanation
# crontab -e -u natasha
23 14 * * * /bin/echo hiya
wq!
NEW QUESTION 44
Create a swap space, set the size is 600 MB, and make it be mounted automatically after rebooting the system (permanent mount).
Answer:
Explanation:
if=/dev/zero of=/swapfile bs=1M count=600 mkswap /swapfile
/etc/fstab:
/swapfile swap swap defaults 0 0 mount -a
NEW QUESTION 45
CORRECT TEXT
Create a 2G swap partition which take effect automatically at boot-start, and it should not affect the original swap partition.
Answer:
Explanation:
# 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
theextended 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)
NEW QUESTION 46
CORRECT TEXT
Create a volume group, and set 16M as a extends. And divided a volume group containing 50 extends on volume group lv, make it as ext4 file system, and mounted automatically under /mnt/data.
Answer:
Explanation:
# pvcreate /dev/sda7 /dev/sda8
# vgcreate -s 16M vg1 /dev/sda7 /dev/sda8
# lvcreate -l 50 -n lvm02
# mkfs.ext4 /dev/vg1/lvm02
# blkid /dev/vg1/lv1
# vim /etc/fstab
# mkdir -p /mnt/data
UUID=xxxxxxxx /mnt/data ext4 defaults 0 0
# vim /etc/fstab
# mount -a
# mount
(Verify)
NEW QUESTION 47
Which of the following information is contained in the output of git status? (Choose three correct answers.)
- A. Changed files that will be part of the next commit.
- B. Untracked files which are not subject to version control.
- C. Changed files that will not be part of the next commit.
- D. Locked files which cannot be edited until the lock is released.
- E. Unchanged files which have not been edited locally.
Answer: A,B,E
NEW QUESTION 48
......
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