[2021-New] Red Hat EX200 Dumps With Update Exam Questions (21-27)

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Q1. CORRECT TEXT

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.

Answer: # 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

DocumentRoot /var/www/html/

ServerName station.domain40.example.com

</VirtualHost>

Q2. CORRECT TEXT

Find the files owned by harry, and copy it to catalog: /opt/dir

Answer: # cd /opt/

# mkdir dir

# find / -user harry -exec cp -rfp {} /opt/dir/ \;

Q3. CORRECT TEXT

Change the logical volume capacity named vo from 190M to 300M. and the size of the floating range should set between 280 and 320. (This logical volume has been mounted in advance.)

Answer: # vgdisplay

(Check the capacity of vg, if the capacity is not enough, need to create pv , vgextend , lvextend)

# lvdisplay (Check lv)

# lvextend -L +110M /dev/vg2/lv2

# resize2fs /dev/vg2/lv2

mount -a

(Verify)

------------------------------------------------------------------------------- (Decrease lvm)

# umount /media

# fsck -f /dev/vg2/lv2

# resize2fs -f /dev/vg2/lv2 100M

# lvreduce -L 100M /dev/vg2/lv2

# mount -a

# lvdisplay (Verify)

# e2fsck -f /dev/vg1/lvm02

# resize2fs -f /dev/vg1/lvm02

# mount /dev/vg1/lvm01 /mnt

# lvreduce -L 1G -n /dev/vg1/lvm02

# lvdisplay (Verify)

Q4. CORRECT TEXT

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.

Answer: # 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

DocumentRoot /var/www/html/

ServerName station.domain40.example.com

</VirtualHost>

Q5. CORRECT TEXT

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/data. And the size of the floating range should set between 380M and 400M.

Answer: # 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

Q6. CORRECT TEXT

Copy /etc/fstab to /var/tmp name admin, the user1 could read, write and modify it, while user2 without any permission.

Answer: # cp /etc/fstab /var/tmp/

# chgrp admin /var/tmp/fstab

# setfacl -m u:user1:rwx /var/tmp/fstab

# setfacl -m u:user2:--- /var/tmp/fstab

# ls -l

-rw-rw-r--+ 1 root admin 685 Nov 10 15:29 /var/tmp/fstab

Q7. CORRECT TEXT

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

Answer: # 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