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Vendor: RedHat
Certifications: RHCSA
Exam Name: Red Hat Certified System Administrator – RHCSA
Exam Code: EX200
Total Questions: 24 Q&As
EX200 dumps
QUESTION 1
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.
Correct Answer:
# 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

QUESTION 2
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.
Correct Answer:
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

QUESTION 3
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, EX200 dumps and mounted automatically under /mnt/data. And the size of the floating range should set between 380M and 400M.
Correct 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

QUESTION 4
Create a 2G swap partition which take effect automatically at boot-start, and it should not affect the original swap partition.
Correct Answer:
# fdisk /dev/sda
(check Partition table)
(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
# partx -a /dev/sda
# partprobe
# mkswap /dev/sda8
# Copy UUID
# swapon -a
# vim /etc/fstab
UUID=XXXX swap swap defaults 0 0
(swapon -s)

QUESTION 5
Find the files owned by harry, and copy it to catalog: /opt/dir
Correct Answer:
# cd /opt/
# mkdir dir
# find / -user harry -exec cp -rfp {} /opt/dir/ \;

QUESTION 6
Configure a task: plan to run echo hello command at 14:23 every day.
Correct Answer:
# which echo
# crontab –e
23 14 * * * /bin/echo hello
# crontab -l (Verify)

QUESTION 7
Create a 512M partition, make it as ext4 file system, mounted automatically under /mnt/data and which take effect automatically at boot-start.
Correct Answer:
# fdisk /dev/vda
# partprobe /dev/vda
# mkfs -t ext4 /dev/vda5
# mkdir -p /data
# vim /etc/fstab
/dev/vda5 /data ext4 defaults 0 0
# mount -a

QUESTION 8
Upgrading the kernel as 2.6.36.7.1, and configure the system to Start the default kernel, keep the old kernel available.
Correct 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

QUESTION 9
Configure autofs to make sure after login successfully, it has the home directory autofs, which is shared as /rhome/ldapuser40 at the ip: 172.24.40.10. and it also requires that, EX200 dumps other ldap users can use the home directory normally.
Correct Answer:
# chkconfig autofs on
# cd /etc/
# vim /etc/auto.master
/rhome /etc/auto.ldap
# cp auto.misc auto.ldap
# vim auto.ladp
ldapuser40 -rw,soft,intr 172.24.40.10:/rhome/ldapuser40
* -rw,soft,intr 172.16.40.10:/rhome/&
# service autofs stop
# server autofs start
# showmount -e 172.24.40.10
# su – ladpuser40

QUESTION 10
Configure the system synchronous as 172.24.40.10.
Correct Answer:
Graphical Interfaces:
System–>Administration–>Date & Time
OR
# system-config-date

QUESTION 11
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.
Correct Answer:
# 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)

QUESTION 12
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.)
Correct 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)
OR
# e2fsck -f /dev/vg1/lvm02
# resize2fs -f /dev/vg1/lvm02
# mount /dev/vg1/lvm01 /mnt
# lvreduce -L 1G -n /dev/vg1/lvm02
# lvdisplay (Verify)

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