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RedHat EX200 Exam Practice Questions (P. 4)

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Question #16
SIMULATION -
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:
See explanation below.
# 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 #17
SIMULATION -
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:
See explanation below.
# 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

Question #18
SIMULATION -
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.

Correct Answer:
See explanation below.
# 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 #19
SIMULATION -
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:
See explanation below.
# 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 #20
SIMULATION -

Add admin group and set gid=600 -

Correct Answer:
See explanation below.
# groupadd -g 600 admin
chatbot-img GPT-4o - Answer
The correct approach to tackle the simulation task given is to initially create the admin group with a specific GID of 600, if it doesn't already exist. You can achieve this using the command `sudo groupadd -g 600 admin`. To confirm that the group was added with the correct GID, you can utilize `grep 600 /etc/group`. This action checks the /etc/group file for the entry of the admin group with the GID 600, ensuring the group is set up as requested. If the admin group is already present and you need to change its GID to 600, use `groupmod admin --gid 600`.

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