EX200事前に試験練習テストで使おう（最新136問題)
有効なEX200試験解答PDF一年無料更新
RedHat EX200 認定試験の出題範囲：
| トピック | 出題範囲 |
|---|---|
| トピック 1 |
|
| トピック 2 |
|
質問 12
Make on /archive directory that only the user owner and group owner member can fully access.
正解:
解説:
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
質問 13
Create a 512M partition, make it as ext4 file system, mounted automatically under /mnt/data and which take effect automatically at boot-start.
正解:
解説:
# fdisk /dev/vda
n
+512M
w
# partprobe /dev/vda
# mkfs -t ext4 /dev/vda5
# mkdir -p /data
# vim /etc/fstab
/dev/vda5 /data ext4 defaults 0 0
# mount -a
質問 14
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.
正解:
解説:
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.
質問 15
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
正解:
解説:
* [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
質問 16
SIMULATION
Create a volume group, and set the size is 500M, the size of single PE is 16M. Create logical volume named lv0 in this volume group, set size is 20 PE, make it as ext3 file system, and mounted automatically under data.
正解:
解説:
See explanation below.
Explanation/Reference:
Explanation: fdisk /dev/vda
pvcreate /dev/vda3
vgcreate -s 16M vg0 /dev/vda3
lvcreate -n lv0 -l 20 vg0
mkfs.ext3 /dev/mapper/vg0-lv0
mkdir /data
/etc/fstab:
/dev/mapper/vg0-lv0 /data ext3 defaults 0 0
mount -a
mount | grep data
質問 17
Successfully resolve to server1.example.com where your DNS server is 172.24.254.254.
正解:
解説:
see explanation below.
Explanation
* 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.
質問 18
SIMULATION
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.
正解:
解説:
See explanation below.
Explanation/Reference:
Explanation: grep seismic /usr/share/dict/words > /root/lines.txt
質問 19
Configure
a HTTP server, which can be accessed through http://station.domain40.example.com.
Please
download the released page from http://ip/dir/example.html.
正解:
解説:
see explanation below.
Explanation
# yum install -y httpd
# chkconfig httpd on
# cd /var/www/html
#
wget http://ip/dir/example.html
# cp example.com index.html
# vim /etc/httpd/conf/httpd.conf
NameVirtualHost 192.168.0.254:80
<VirtualHost 192.168.0.254:80>
DocumentRoot /var/www/html/
ServerName station.domain40.example.com
</VirtualHost>
質問 20
Which of the following information is contained in the output of git status? (Choose three correct answers.)
- A. Locked files which cannot be edited until the lock is released.
- B. Changed files that will be part of the next commit.
- C. Untracked files which are not subject to version control.
- D. Changed files that will not be part of the next commit.
- E. Unchanged files which have not been edited locally.
正解: B,C,E
質問 21
CORRECT TEXT
Add admin group and set gid=600
正解:
解説:
# groupadd -g 600 admin
質問 22
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 23
Part 1 (on Node1 Server)
Task 3 [Managing Local Users and Groups]
Create the following users, groups and group memberships:
A group named sharegrp
A user harry who belongs to sharegrp as a secondary group
A user natasha who also belongs to sharegrp as a secondary group
A user copper who does not have access to an interactive shell on the system and who is not a member of sharegrp.
harry, natasha and copper should have the password redhat
正解:
解説:
* [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
質問 24
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.
正解:
解説:
below
iptables -F
service iptables save
iptables -A INPUT -s 172.25.0.0/16 -j REJECT
service iptables save
service iptables restart
質問 25
What is the Puppet equivalent to an Ansible Playbook called?
- A. A Puppet Factsheet
- B. A Puppet Manifest
- C. A Puppet Catalog
- D. A Puppet Declaration
- E. A Puppet Playbook
正解: C
解説:
Explanation/Reference:
質問 26
CORRECT TEXT
Configure the system synchronous as 172.24.40.10.
正解:
解説:
Graphical Interfaces:
System-->Administration-->Date & Time
OR
# system-config-date
質問 27
What happens when a merge conflict occurs in git? (Choose two correct answers.)
- A. A new branch containing the remote changes is created.
- B. Conflict markers are added to the files.
- C. The newest version is placed in the local repository.
- D. The affected files are flagged as conflicting.
- E. The conflicting files remain unchanged in the local repository.
正解: C,D
質問 28
Configure autofs.
Configure the autofs automatically mount to the home directory of LDAP, as required:
server.domain11.example.com use NFS to share the home to your system. This file system contains a pre configured home directory of user ldapuserX.
Home directory of ldapuserX is:
server.domain11.example.com /home/guests/ldapuser
Home directory of ldapuserX should automatically mount to the ldapuserX of the local /home/guests Home directory's write permissions must be available for users ldapuser1's password is password
正解:
解説:
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$, it maybe exist multi-level directory, this needs to change the server.domain11.example.com:/home/guests/ to server.domain11.example.com:/home/guests/ldapuserX. What is multi-level directory? It means there is a directory of ldapuserX under the /home/guests/ldapuserX in the questions. This directory is the real directory.
質問 29
Open kmcrl value of 5 , and can verify in /proc/ cmdline
正解:
解説:
# vim /boot/grub/grub.conf
kernel/vmlinuz-2.6.32-71.el6.x86_64 ro root=/dev/mapper/GLSvg-GLSrootrd_LVM_LV=GLSvg/GLSroot rd_LVM_LV=GLSvg/GLSswaprd_NO_LUKSrd_NO_MDrd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us crashkernel=auto rhgb quiet kmcrl=5 Restart to take effect and verification:
# cat /proc/cmdline
ro root=/dev/mapper/GLSvg-GLSroot rd_LVM_LV=GLSvg/GLSroot rd_LVM_LV=GLSvg/GLSswap rd_NO_LUKS rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us rhgb quiet kmcrl=5
質問 30
Part 1 (on Node1 Server)
Task 15 [Running Containers]
Create a container named logserver with the image rhel8/rsyslog found from the registry registry.domain15.example.com:5000 The container should run as the root less user shangril a. use redhat as password [sudo user] Configure the container with systemd services as the shangrila user using the service name, "container-logserver" so that it can be persistent across reboot.
Use admin as the username and admin123 as the credentials for the image registry.
正解:
解説:
* [root@workstation ~]# ssh shangrila@node1
[shangrila@node1 ~]$ podman login registry.domain15.example.com:5000
Username: admin
Password:
Login Succeeded!
[shangrila@node1 ~]$ podman pull registry.domain15.example.com:5000/rhel8/rsyslog
[shangrila@node1 ~]$ podman run -d --name logserver registry.domain15.example.com:5000/rhel8/rsyslog
021b26669f39cc42b8e94eab886ba8293d6247bf68e4b0d76db2874aef284d6d
[shangrila@node1 ~]$ mkdir -p ~/.config/systemd/user
[shangrila@node1 ~]$ cd ~/.config/systemd/user
* [shangrila@node1 user]$ podman generate systemd --name logserver --files --new
/home/shangrila/.config/systemd/user/container-logserver.service
[shangrila@node1 ~]$ systemctl --user daemon-reload
[shangrila@node1 user]$ systemctl --user enable --now container-logserver.service
[shangrila@node1 ~]$ podman ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
7d9f7a8a4d63 registry.domain15.example.com:5000/rhel8/rsyslog:latest /bin/rsyslog.sh 2 seconds ago logserver
[shangrila@node1 ~]$ sudo reboot
[shangrila@node1 ~]$ cd .config/systemd/user
[shangrila@node1 user]$ systemctl --user status
質問 31
Create the following users, groups, and group memberships:
A group named adminuser.
A user natasha who belongs to adminuser as a secondary group A user harry who also belongs to adminuser as a secondary group.
A user sarah who does not have access to an interactive shell on the system, and who is not a member of adminuser, natasha, harry, and sarah should all have the password of redhat.
正解:
解説:
groupadd sysmgrs
useradd -G sysmgrs Natasha
We can verify the newly created user by cat /etc/passwd)
# useradd -G sysmgrs harry
# useradd -s /sbin/nologin sarrh
# passwd Natasha
# passwd harry
# passwd sarrah
質問 32
Open kmcrl value of 5 , and can verify in /proc/ cmdline
正解:
解説:
see explanation below.
Explanation
# vim /boot/grub/grub.conf
kernel/vmlinuz-2.6.32-71.el6.x86_64 ro root=/dev/mapper/GLSvg-GLSrootrd_LVM_LV=GLSvg/GLSroot rd_LVM_LV=GLSvg/GLSswaprd_NO_LUKSrd_NO_MDrd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us crashkernel=auto rhgb quiet kmcrl=5 Restart to take effect and verification:
# cat /proc/cmdline
ro root=/dev/mapper/GLSvg-GLSroot rd_LVM_LV=GLSvg/GLSroot rd_LVM_LV=GLSvg/GLSswap rd_NO_LUKS rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us rhgb quiet kmcrl=5
質問 33
Configure a cron Task.
User natasha must configure a cron job, local time 14:23 runs and executes: */bin/echo hiya every day.
正解:
解説:
see explanation below.
Explanation
crontab -e -u natasha
23 14/bin/echo hiya
crontab -l -u natasha // view
systemctlenable crond
systemcdlrestart crond
質問 34
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:
see explanation below.
Explanation
# 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 35
Which of the following gitcommands is used to manage files in a repository? (Choose two correct answers.)
- A. git mv
- B. git cp
- C. git move
- D. git copy
- E. git rm
正解: A,E
質問 36
Your System is going to use as a Router for two networks. One Network is 192.168.0.0/24 and Another Network is 192.168.1.0/24. Both network's IP address has assigned. How will you forward the packets from one network to another network?
正解:
解説:
echo "1" >/proc/sys/net/ipv4/ip_forward
vi /etc/sysctl.conf
net.ipv4.ip_forward = 1
If you want to use the Linux System as a Router to make communication between different networks, you need enable the IP forwarding. To enable on running session just set value 1 to
/proc/sys/net/ipv4/ip_forward. As well as automatically turn on the IP forwarding features on next boot set on /etc/sysctl.conf file.
質問 37
......
Red Hat Certified System Administrator - RHCSA無料更新認定サンプル問題：https://jp.fast2test.com/EX200-premium-file.html
試験本場前にトレンドなRedHat EX200のPDF問題集を試そう：https://drive.google.com/open?id=1BWSS5X4VYO0c2E59jUDqXABLlnaoy10e