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New LPI 201-450 Exam Dumps Collection (Question 3 - Question 12)

Question No: 3

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


Question No: 4

Which directory contains system-specific systemd unit files? (Specify the full path to the directory.)

Answer:

/lib/systemd/system


Question No: 5

Which of the following properties should be recorded in order to monitor the quality of a network link? (Choose two.)

A. Bandwidth in both directions

B. Number of nodes using the link

C. Effective Latency

D. Number of IPv4 and IPv6 packets

E. Number of used TCP ports

Answer: AC


Question No: 6

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


Question No: 7

What command is used to send messages to all users currently logged in? (Specify ONLY the command without any path or parameters.)

Answer:

wall


Question No: 8

Which /etc/hosts.allow entries will permit access to sshd for users from the 192.168.1.0/24 subnet? (Choose TWO correct answers.)

A. sshd : 192.168.1. B. sshd : 192.168.1

C. sshd : 192.168.1.0 netmask 255.255.255.0

D. sshd : 192.168.1.0/255.255.255.0

E. sshd : 192.168.1.0

Answer: AD


Question No: 9

Which of the following commands restores only those files containing lpi in their name from the archive lpifiles.tar.gz?

A. tar xvzf lpifiles.tar.gz --wildcards u2021*lpi*u2021

B. tar xvzwf lpifiles.tar.gz u2021*lpi*u2021

C. tar -xvfz lpifiles.tar.gz --deep u2021*lpi*u2021

D. tar -xvzf lpifiles.tar.gz --subdirs u2021*lpi*u2021

E. tar xvzf lpifiles.tar.gz --globbing u2021*lpi*u2021

Answer: A


Question No: 10

Which one of these directories should not be backed up?

A. /backup

B. /etc

C. /opt

D. /proc

E. /var/log

Answer: D


Question No: 11

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


Question No: 12

Which of the following commands can be used to script interactions with various TCP or UDP services?

A. ftp

B. nc

C. tcpdump

D. strings

E. wget

Answer: B


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