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New LPI 201-450 Exam Dumps Collection (Question 6 - Question 15)

Q6. After manually compiling and installing a new kernel, what has to be done regarding the initramfs?

A. To initramfs is independent of the kernel and should not be modified unless the hardware configuration of the machine has changed

B. Since the initramfs contains kernel modules, a new initramfs must be built for the new kernel

C. During the compilation of the Linux kernel, a new initramfs is built automatically. The new initramfs only needs to be installed

D. The system should be restarted since the initramfs reconfigures itself for the new kernel during the startup of the system

Answer: C


Q7. Which of the following commands will erase the contents of the /dev/sdb3 partition?

A. rm /dev/sdb3

B. dd if=/dev/zero of=/dev/sdb3

C. dd of=/dev/zero if=/dev/sdb3

D. umount /dev/sdb3

Answer: B


Q8. The IDE hard drive /dev/hda does not have DMA enabled. Which command must be run to enable DMA on it?

A. hdparm -d /dev/hda

B. hdparm --dma /dev/hda

C. hdparm --dma /dev/hda1

D. hdparm -d /dev/hda1

E. hdparm -d 1 /dev/hda

Answer: E


Q9. What action should be performed after increasing the size of a logical volume?

A. Run vgresize.

B. Increase the size of the filesystem used for the logical volume.

C. Run lvresize.

D. Remount the logical volume.

Answer: B


Q10. What is the device name for the first SCSI tape drive on a system when used without automatic rewinding after each write operation? (Please specify the full path to the device.)

Answer:

/dev/nst0


Q11. Which single command will simulate a failed device within a RAID 5 array?

A. mdadm --remove /dev/md0 /dev/sdd1

B. mdadm --zero-superblock /dev/sdf3

C. mdadm --force-fault /dev/md2 /dev/sde2

D. mdadm --fail /dev/md0 /dev/sdc1

E. mdadm /dev/md0 --offline /dev/sdc1

Answer: D


Q12. The users of the local network complain that name resolution is not fast enough. Enter the command, without the path or any options, that shows the time taken to resolve a DNS query.

Answer:

dig, time dig, time host, time nslookup


Q13. A web application server contains 64GB of RAM and two swap partitions on normal hard disk drives, each with a size of 64 GB. Within the last month, the average number of user sessions on this server has grown by 20 percent. At the same time, the average usage of RAM increased from 65 to 75 percent, while the swap space is almost not used at all. It is expected that the number of user sessions will continue to increase by about 15 to 20 percent each month. Which of the following reactions would be appropriate in response to these observations? (Choose two.)

A. Delay any hardware upgrade until there is a significant consumption of swap space to ensure an efficient usage of the available hardware

B. Create a RAID 1 device on the two swap partitions to avoid data loss in case swap space has to be used in the future

C. Consider the installation of an additional application server to distribute the load if the expected growth continues over several months

D. Move the web applicationu2019s scripts and content a ram disk in order to ensure fast access and to avoid the need for swap space

E. Update the hardware to increase the amount of available RAM to avoid using swap space

Answer: CE


Q14. What information is found in the following excerpt from the file /proc/mdstat? (Choose two.)

A. One of the disks in /dev/md0 has failed and a spare disk is used to recreate full redundancy

B. The spare disk /dev/sda1 is used to restore full redundancy after the current recovery

C. The information [UU_] means, that the raid is missing one disk and is not fully redundant

D. The device is using version 1.2 metadata to allow LILO and GRUB Legacy to use /dev/md0 as the boot partition. This would not have been necessary with GRUB2

E. The information [3/2] means that 3 RAID disks belong to the array and 2 disks are spare. Together they equal the number of available disks

Answer: AC


Q15. Which file contains the text message that is displayed after logging into the console? (Specify the full name of the file, including path.)

Answer:

/etc/motd


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