あなたを余裕でEX200試験合格させます！100%試験高合格率保証 [2023]
EX200問題集本日限定！無料アクセスが可能に！fromGoShiken
RHCSA EX200 試験は、IT プロフェッショナルのスキルを現実世界の環境下でテストする実技試験です。この試験は、典型的な RHEL システム管理の役割に直面する IT プロフェッショナルが直面するタスクや課題をシミュレートするように設計されています。試験は、ソフトウェアのインストールや設定、ユーザーやグループの管理、ファイルシステムの管理、ネットワークサービスの構成など、さまざまなシステム管理タスクを実行することを求める一連のタスクから構成されています。
RHCSA試験は、候補者がライブシステムで実際のタスクを実行する必要がある実践的なテストです。試験は、システム管理者が日常業務で実行するタスクをシミュレートする一連の実践的な演習から構成されています。候補者は、コマンドラインインターフェースを使用してシステム管理タスクを実行する能力だけでなく、RHELシステムで発生する可能性のある一般的な問題をトラブルシューティングする能力を証明する必要があります。RHCSA認定は、Red Hat Certified Engineer（RHCE）やRed Hat Certified Architect（RHCA）などのより高度な認定の前提条件であり、Linuxシステム管理のキャリアを追求したい人にとって必須のステップです。
質問 # 18
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.
正解：
解説：
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.
質問 # 19
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.
正解：
解説：
see explanation below.
Explanation
# cd /home/
# mkdir admins /
# chown .admin admins/
# chmod 770 admins/
# chmod g+s admins/
質問 # 20
SELinux must run in force mode.
正解：
解説：
/etc/sysconfig/selinux
SELINUX=enforcing
質問 # 21
Locate all the files owned by ira and copy them to the / root/findresults directory.
正解：
解説：
# 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
質問 # 22
Who ever creates the files/directories on a data group owner should automatically be in the same group owner as data.
正解：
解説：
1. chmod g+s /data
2. Verify using: ls -ld /data
Permission should be like this: drwxrws--- 2 root sysadmin 4096 Mar 16 18:08 /data 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
質問 # 23
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
正解：
解説：
# 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)
質問 # 24
Notes:
NFS: NFS instructor.example.com:/var/ftp/pub/rhel6/dvd
YUM: http://instructor.example.com/pub/rhel6/dvd
ldap: http://instructor.example.com/pub/EXAMPLE-CA-CERT
- A. Install dialog package.
正解：A
質問 # 25
CORRECT TEXT
Configure a task: plan to run echo hello command at 14:23 every day.
正解：
解説：
# which echo
# crontab -e
23 14 * * * /bin/echo hello
# crontab -l (Verify)
質問 # 26
SIMULATION
There is a local logical volumes in your system, named with common and belong to VGSRV volume group, mount to the /common directory. The definition of size is 128 MB.
Requirement:
Extend the logical volume to 190 MB without any loss of data. The size is allowed between 160-160 MB after extending.
正解：
解説：
See explanation below.
Explanation/Reference:
Explanation: lvextend -L 190M /dev/mapper/vgsrv-common resize2fs /dev/mapper/vgsrv-common
質問 # 27
SIMULATION
According the following requirements to create a local directory /common/admin.
This directory has admin group.
This directory has read, write and execute permissions for all admin group members.
Other groups and users don't have any permissions.
All the documents or directories created in the/common/admin are automatically inherit the admin group.
正解：
解説：
See explanation below.
Explanation/Reference:
Explanation:
mkdir -p /common/admin
chgrp admin /common/admin
chmod 2770 /common/admin
質問 # 28
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.
正解：
解説：
# 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
質問 # 29
SIMULATION
The firewall must be open.
正解：
解説：
See explanation below.
Explanation/Reference:
Explanation: /etc/init.d/iptables start
iptables -F
iptables -X
iptables -Z
/etc/init.d/iptables save
chkconfig iptables on
質問 # 30
Configure a default software repository for your system.
One
YUM has already provided to configure your system on http://server.domain11.example.com/pub/ x86_64/Server, and can be used normally.
正解：
解説：
see explanation below.
Explanation
Yum-config-manager
--add-repo=http://content.example.com/rhel7.0/x86-64/dvd" is to generate a file vim content.example.com_rhel7.0_x86_64_dvd.repo, Add a line gpgcheck=0 Yumcleanall Yumrepolist Almost 4305 packages are right, Wrong Yum Configuration will lead to some following questions cannot be worked out.
質問 # 31
Which of the following statements describes the principal concept behind test driven development?
- A. All tests are generated automatically from the tested source code.
- B. The only acceptable reason to write a test is to prevent fixed bugs from occurring again.
- C. Instead of testing software automatically, manual tests are performed and logged daily.
- D. Tests are written before the function / method is implemented.
- E. Tests may not be written by the same development team that wrote the tested code.
正解：D
解説：
Explanation/Reference:
Reference https://en.wikipedia.org/wiki/Test-driven_development
質問 # 32
Add admin group and set gid=600
正解：
解説：
Answer see in the explanation.
Explanation/Reference:
# groupadd -g 600 admin
質問 # 33
Configure the verification mode of your host account and the password as LDAP. And it can ldapuser40.
The password is set as "password". And the certificate login successfully through can be downloaded from http://ip/dir/ldap.crt. After the user logs on , the user has no host directory unless you configure the autofs in the following questions.
正解：
解説：
Answer see in the explanation.
Explanation/Reference:
system-config-authentication
LDAP Server: ldap//instructor.example.com (In domain form, not write IP) OR
# yum groupinstall directory-client (1.krb5-workstation 2.pam-krb5 3.sssd)
# system-config-authentication
1.User Account Database: LDAP
2.LDAP Search Base DN: dc=example,dc=com
3.LDAP Server: ldap://instructor.example.com (In domain form, not write IP) 4.Download CA Certificate
5.Authentication Method: LDAP password
6.Apply
getent passwd ldapuser40
質問 # 34
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.
正解：
解説：
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
質問 # 35
Configure your NFS services. Share the directory by the NFS Shared services.
正解：
解説：
/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
質問 # 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.
正解：
解説：
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.
質問 # 37
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.
正解：
解説：
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
質問 # 38
Create a 2G swap partition which take effect automatically at boot-start, and it should not affect the original swap partition.
正解：
解説：
# 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)
質問 # 39
Part 1 (on Node1 Server)
Task 2 [Installing and Updating Software Packages]
Configure your system to use this location as a default repository:
http://utility.domain15.example.com/BaseOS
http://utility.domain15.example.com/AppStream
Also configure your GPG key to use this location
http://utility.domain15.example.com/RPM-GPG-KEY-redhat-release
正解：
解説：
* [root@node1 ~]# vim /etc/yum.repos.d/redhat.repo
[BaseOS]
name=BaseOS
baseurl=http://utility.domain15.example.com/BaseOS
enabled=1
gpgcheck=1
gpgkey=http://utility.domain15.example.com/RPM-GPG-KEY-redhat-release
[AppStream]
name=AppStream
baseurl=http://utility.domain15.example.com/AppStream
enabled=1
gpgcheck=1
gpgkey=http://utility.domain15.example.com/RPM-GPG-KEY-redhat-release
[root@node1 ~]# yum clean all
[root@node1 ~]# yum repolist
[root@node1 ~]# yum list all
質問 # 40
Configure a task: plan to run echo "file" command at 14:23 every day.
正解：
解説：
Answer see in the explanation.
Explanation/Reference:
(a) Created as administrator
# crontab -u natasha -e
23 14 * * * /bin/echo "file"
(b)Created as natasha
# su - natasha
$ crontab -e
23 14 * * * /bin/echo "file"
質問 # 41
There is a local logical volumes in your system, named with common and belong to VGSRV volume group, mount to the /common directory. The definition of size is 128 MB.
Requirement:
Extend the logical volume to 190 MB without any loss of dat
a. The size is allowed between 160-160 MB after extending.
正解：
解説：
lvextend -L 190M /dev/mapper/vgsrv-common resize2fs /dev/mapper/vgsrv-common
質問 # 42
Configure your web services, download from http://instructor.example.com/pub/serverX.html And the services must be still running after system rebooting.
正解：
解説：
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
質問 # 43
......
RHCSA試験は、候補者がライブシステム上でタスクを実行することを要求する実技試験です。この形式により、候補者は実際の環境でタスクを実行する能力を示すことができます。試験は2時間半で、20〜25の問題から構成されています。試験料は400ドルです。
学習材料は有効なEX200効率的問題集：https://www.goshiken.com/RedHat/EX200-mondaishu.html
最新RHCSA EX200実際の無料試験解答：https://drive.google.com/open?id=10gtv8b3eAIGSyuf9oJsneiveAlqrL0xf