Ultimate Guide to the EX200 - Latest Dec 05, 2021 Edition Available Now
2021 Updated Verified Pass EX200 Exam - Real Questions & Answers
EX200 Exam topics
Candidates must know the exam topics before they start of preparation. Because it will really help them in hitting the core. Our Red Hat EX200 dumps will include the following topics:
- Deploy, configure, and maintain systems
- Manage users and groups
- Create and configure file systems
- Operate running systems
- Manage security
- Manage basic networking
- Understand and use essential tools
- Configure local storage
NEW QUESTION 41
Add 3 users: harry, natasha, tom.
The requirements: The Additional group of the two users: harry, Natasha is the admin group. The user: tom's login shell should be non-interactive.
Answer:
Explanation:
see explanation below.
Explanation
# useradd -G admin harry
# useradd -G admin natasha
# useradd -s /sbin/nologin tom
# id harry;id Natasha (Show additional group)
# cat /etc/passwd
(Show the login shell)
OR
# system-config-users
NEW QUESTION 42
Download ftp://192.168.0.254/pub/boot.iso to /root, and mounted automatically under /media/cdrom and which take effect automatically at boot-start.
Answer:
Explanation:
Answer see in the explanation.
Explanation/Reference:
# cd /root; wget ftp://192.168.0.254/pub/boot.iso
# mkdir -p /media/cdrom
# vim /etc/fstab
/root/boot.iso /media/cdrom iso9660 defaults,loop 0 0
# mount -a
mount [-t vfstype] [-o options] device dir
NEW QUESTION 43
The following command is issued on two docker nodes:
docker network create --driver bridge isolated_nw
Afterwards, one container is started at each node with the parameter --network=isolated_nw. It turns out
that the containers can not interact with each other. What must be done in order to allow the containers to
interact with each other? (Choose two correct answers.)
- A. Use a host network instead of a bridged network.
- B. Add the option --inter-containerto the docker network createcommand.
- C. Start the containers on the same node.
- D. Change the --networkparameter of docker create to --network=isolated_nw,nofence.
- E. Use an overlay network instead of a bridged network.
Answer: C,D
Explanation:
Explanation/Reference:
Reference https://docs.docker.com/v17.09/engine/userguide/networking/#bridge-networks
NEW QUESTION 44
SIMULATION
In the system, mounted the iso image /root/examine.iso to/mnt/iso directory. And enable automatically mount (permanent mount) after restart system.
Answer:
Explanation:
See explanation below.
Explanation/Reference:
Explanation:
/etc/fstab:
/root/examine.iso /mnt/iso iso9660 loop 0 0 mount -a
mount | grep examine
NEW QUESTION 45
One Package named zsh is dump on ftp://server1.example.com under /pub/updates directory and your FTP server is 192.168.0.254. Install the package zsh.
Answer:
Explanation:
see explanation below.
Explanation
* rpm -ivh ftp://server1/example.com/pub/updates/zsh-*
or
* Login to ftp server : ftp ftp://server1.example.com using anonymous user.
* Change the directory: cd pub and cd updates
* Download the package: mget zsh-*
* Quit from the ftp prompt : bye
* Install the package
* rpm -ivh zsh-*
* Verify either package is installed or not : rpm -q zsh
NEW QUESTION 46
SIMULATION
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/Reference:
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 47
Copy /etc/fstab document to /var/TMP directory. According the following requirements to configure the permission of this document.
* The owner of this document must be root.
* This document belongs to root group.
* User mary have read and write permissions for this document.
* User alice have read and execute permissions for this document.
* Create user named bob, set uid is 1000. Bob have read and write permissions for this document.
* All users has read permission for this document in the system.
Answer:
Explanation:
see explanation below.
Explanation
cp /etc/fstab /var/tmp
chown root:root /var/tmp/fstab
chmod a-x /var/tmp/fstab
setfacl -m u:mary:rw /var/tmp/fstab
setfacl -m u:alice:rx /var/tmp/fstab
useradd -u 1000 bob
NEW QUESTION 48
A service should be provided to arbitrary clients on the Internet using HTTPS. Any standard client on the
Internet should be able to consume the service without further configuration. Which of the following
approaches can be used to implement these requirements? (Choose three correct answers.)
- A. Use a load balancer that decrypts incoming requests and passes them on in plain HTTP.
- B. Use a certificate issuing service to request certificates during each server deployment.
- C. Install a wildcard certificate and the respective private key on all the backend servers.
- D. Generate a self-signed certificates during the deployment of each backend server.
- E. Configure the web servers to not use a server certificate when serving HTTPS.
Answer: A,B,D
NEW QUESTION 49
SIMULATION
Search files.
Find out files owned by jack, and copy them to directory /root/findresults
Answer:
Explanation:
See explanation below.
Explanation/Reference:
Explanation: mkdir/root/findfiles
find / -user jack -exec cp -a {} /root/findfiles/ \; ls /root/findresults
NEW QUESTION 50
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:
Answer see in the explanation.
Explanation/Reference:
# 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 51
We are working on /data initially the size is 2GB. The /dev/test0/lvtestvolume is mount on /data. Now you required more space on /data but you already added all disks belong to physical volume. You saw that you have unallocated space around 5 GB on your harddisk. Increase the size of lvtestvolume by 5GB.
Answer:
Explanation:
see explanation below.
* Create a partition having size 5 GB and change the syste id '8e'.
* use partprobe command
* pvcreate /dev/hda9 Suppose your partition number is hda9.
* vgextend test0 /dev/hda9 vgextend command add the physical disk on volume group.
* lvextend -L+5120M /dev/test0/lvtestvolume
* verify using lvdisplay /dev/test0/lvtestvolume.
NEW QUESTION 52
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:
see explanation below.
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 53
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 54
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
system-config-authentication &
NEW QUESTION 55
CORRECT TEXT
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:
# 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 56
Search a String
Find out all the columns that contains the string seismic within /usr/share/dict/words, then copy all these columns to /root/lines.tx in original order, there is no blank line, all columns must be the accurate copy of the original columns.
Answer:
Explanation:
see explanation below.
Explanation
grep seismic /usr/share/dict/words> /root/lines.txt
NEW QUESTION 57
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:
see explanation below.
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 58
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:
Answer see in the explanation.
Explanation/Reference:
# 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 59
How is cloud-init integrated with a managed system image?
- A. cloud-init provides systemd units which must be included in several stages of the booting process of the
instance. - B. cloud-init provides the cloud-init-workercommand which has to be invoked periodically within the
running instance. - C. cloud-init provides the cloud-init-daemonservice which is launched during startup and keeps the
instance in sync with the desired configuration. - D. cloud-init provides a Linux kernel module that must be included and loaded in the instance's initramfs.
- E. cloud-init provides its own startup mechanism which replaces the instance's original init system, such as
systemd.
Answer: D
NEW QUESTION 60
SIMULATION
Configure your web services, download from http://instructor.example.com/pub/serverX.html And the services must be still running after system rebooting.
Answer:
Explanation:
See explanation below.
Explanation/Reference:
Explanation: cd /var/www/html
wget http://instructor.example.com/pub/serverX.html mv serverX.html index.html /etc/init.d/httpd restart chkconfig httpd on
NEW QUESTION 61
Find all lines in the file /usr/share/dict/words that contain the string seismic. Put a copy of all these lines in their original order in the file /root/wordlist. /root/wordlist should contain no empty lines and all lines must be exact copies of the original lines in /usr/share/dict/words.
Answer:
Explanation:
see explanation below.
Explanation
grep seismic /usr/share/dict/words> /root/wordlist
NEW QUESTION 62
CORRECT TEXT
Install a FTP server, and request to anonymous download from /var/ftp/pub catalog. (it needs you to configure yum direct to the already existing file server. )
Answer:
Explanation:
# cd /etc/yum.repos.d
# vim local.repo
[local]
name=local.repo
baseurl=file:///mnt
enabled=1
gpgcheck=0
# yum makecache
# yum install -y vsftpd
# service vsftpd restart
# chkconfig vsftpd on
# chkconfig --list vsftpd
# vim /etc/vsftpd/vsftpd.conf
anonymous_enable=YES
NEW QUESTION 63
......
RedHat EX200 Exam Syllabus Topics:
| Topic | Details |
|---|---|
| Topic 1 |
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| Topic 2 |
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Preparation for EX200 exam
The most helpful type of preparation is following training courses like those disclosed below:
- RH199 RHCSA Rapid Track course
The RHCSA Rapid Track course (RH199) combines Red Hat System Administration I (RH124) and Red Hat System Administration II (RH134), teaching the objectives in a fast and efficient way. This program relates to Red Hat® Enterprise Linux® and is designed for experienced Linux system administrators. The course proves a convenient way of preparing for the EX200 exam as it is focused on all the necessary topics, such as the configuration of network services, process management, tuning, server administration, package management, and troubleshooting, among the rest.
- RH134Red Hat System Administration II
This is the second part of the RHCSA training track for IT professionals and logically follows the contents of Red Hat System Administration I (RH124). This is a valuable resource for anyone interested in developing better skills in storage configuration and management, management of security features such as SELinux, installation and deployment of Red Hat® Enterprise Linux®, basic system tuning, command-line automation and productivity, control of recurring system tasks, management of the boot process, and troubleshooting.
This course is designed for Windows system administrators and network administrators desiring to boost their skills. The ideal audience also includes Linux system administrators whose duties involve using established standards and procedures for configuring, installing, maintaining, and upgrading Linux systems.
- RH124 Red Hat System Administration I Course
This is the first of two system administration courses needed to start managing Red Hat Enterprise Linux servers. It lasts for 5 days during which you will learn core skills, such as physical storage and file systems managing, software components and services installing and configuring, running processes management and monitoring, and others. The course will also provide you with in-depth coverage of areas like establishing network connections and controlling firewall restrictions, administering users and groups, troubleshooting, and remote management with SSH and the Web Console. It will cost $3600 or 12 Training Units to enroll.
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