RH202 Dumps with Practice Exam Questions Answers

There is a server having 172.24.254.254 and 172.25.254.254. Your System lies on 172.24.0.0/16. Make successfully ping to 172.25.254.254 by Assigning following IP:

172.24.0.x Where x is your station number.

Answer and Explanation:

• uk.co.certification.simulator.questionpool.PList@2588a250

In the lab server is playing the role of router, IP forwarding is enabled. Just set the Correct IP and gateway, you can ping to 172.25.254.254.

There are more then 400 Computers in your Office. You are appointed as a System Administrator. But you don’t have Router. So, you are going to use your One Linux Server as a Router. How will you enable IP packets forward?

Answer and Explanation:

1. /proc is the virtual filesystem, we use /proc to modify the kernel parameters at running time.

# echo “1” >/proc/sys/net/ipv4/ip_forward

2. /etc/sysctl.conf  when System Reboot on next time, /etc/rc.d/rc.sysinit scripts reads the file /etc/sysctl.conf. To enable the IP forwarding on next reboot also you need to set the parameter.

net.ipv4.ip_forward=1

Here 0 means disable, 1 means enable.

One Logical Volume named lv1 is created under vg0. The Initial Size of that Logical Volume is 100MB. Now you required the size 500MB. Make successfully the size of that Logical Volume 500M without losing any data. As well as size should be increased online.

Answer and Explanation:

The LVM system organizes hard disks into Logical Volume (LV) groups. Essentially, physical hard disk partitions (or possibly RAID arrays) are set up in a bunch of equal-sized chunks known as Physical Extents (PE). As there are several other concepts associated with the LVM system, let's start with some basic definitions:

• Physical Volume (PV)is the standard partition that you add to the LVM mix. Normally, a physical volume is a standard primary or logical partition. It can also be a RAID array.
• Physical Extent (PE)is a chunk of disk space. Every PV is divided into a number of equal sized PEs. Every PE in a LV group is the same size. Different LV groups can have different sized PEs.
• Logical Extent (LE)is also a chunk of disk space. Every LE is mapped to a specific PE.
• Logical Volume (LV)is composed of a group of LEs. You can mount a filesystem such as /home and /var on an LV.
• Volume Group (VG)is composed of a group of LVs. It is the organizational group for LVM. Most of the commands that you'll use apply to a specific VG.

1. Verify the size of Logical Volume: lvdisplay /dev/vg0/lv1

2. Verify the Size on mounted directory: df –h or df –h mounted directory name

3. Use : lvextend –L+400M /dev/vg0/lv1

4. ext2online –d /dev/vg0/lv1  to bring extended size online.

5. Again Verify using lvdisplay and df –h command.

Make Successfully Resolve to server1.example.com where DNS Server is 192.168.0.254.

Answer and Explanation: 1. vi /etc/resolv.conf

Write : nameserver 192.168.0.254

Add a new logical partition having size 100MB and create the /data which will be the mount point for the new partition.

Answer and Explanation:

• Use fdisk /dev/hdaTo create new partition.
• Type nFor New partitions
• It will ask for Logical or Primary Partitions. Press l for logical.
• It will ask for the Starting Cylinder: Use the Default by pressing Enter Key.
• Type the Size: +100MYou can Specify either Last cylinder of Size here.
• Press P to verify the partitions lists and remember the partitions name.
• Press w to write on partitions table.
• Either Reboot or use partprobe command.
• Use mkfs –t ext3 /dev/hda?
• Or
• mke2fs –j /dev/hda? To create ext3 filesystem.
• vi /etc/fstab
• Write:
• /dev/hda?/dataext3defaults0 0

• Verify by mounting on current Sessions also:

• mount /dev/hda? /data