RH202 Exam Dumps : RHCT (Redhat Certified Technician) RH202

One Logical Volume is created named as myvol under vo volume group and is mounted. The Initial Size of that Logical Volume is 124MB. Make successfully that the size of Logical Volume 245MB without losing any data. The size of logical volume 240MB to 255MB will be acceptable.

Answer and Explanation:

1.First check the size of Logical Volume: lvdisplay /dev/vo/myvol

2.Increase the Size of Logical Volume: lvextend -L+121M /dev/vo/myvol

3.Make Available the size on online: ext2online /dev/vo/myvol

4.Verify the Size of Logical Volume: lvdisplay /dev/vo/myvol

5.Verify that the size comes in online or not: df -h

We can extend the size of logical Volume using the lvextend command. As well as to decrease the size of Logical Volume, use the lvresize command. In LVM v2 we can extend the size of Logical Volume without unmount as well as we can bring the actual size of Logical Volume on online using ext2online command.

Create the partition having 100MB size and mount it on /mnt/neo

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? Where ? is your partition number
• Or
• mke2fs –j /dev/hda? To create ext3 filesystem.
• mkdir /mnt/neo
• vi /etc/fstab
• Write:
• /dev/hda?/mnt/neoext3defaults1 2
• Verify by mounting on current Sessions also:
• mount /dev/hda? /mnt/neo

Add a job on Cron schedule to display Hello World on every two Seconds in terminal 8.

Answer and Explanation:

1.cat >schedule

*/2 * * * * /bin/echo “Hello World” >/dev/tty8

• crontab schedule
• Verify using: crontab –l
• service crond restart

Cron helps to schedule on recurring events. Pattern of Cron is:

MinuteHourDay of MonthMonth Day of WeekCommands

0-590-231-311-120-7 where 0 and 7 means Sunday.

Note * means every. To execute the command on every two minutes */2.

To add the scheduled file on cron job: crontab filename

To List the Cron Shedule: crontab –l

To Edit the Schedule: crontab –e

To Remove the Schedule: crontab –r