The Secret Of LPI 201-450 Exam Topics

NEW QUESTION 1
The following is an excerpt from the output of tcpdump -nli eth1:
13:03:17.277327 IP 192.168.123.5.1065 > 192.168.5.112.21: Flags [.], ack 1 (truncated)
13:03:17.598624 IP 192.168.5.112.21 > 192.168.123.5.1065: Flags [P.], seq (truncated)
Which network service or protocol was used?

• A. FTP
• B. HTTP
• C. SSH
• D. DNS
• E. DHCP

Answer: A

NEW QUESTION 2
If all of the following files and/or symlinks exist in a SysV-init runlevel directory, which of the following will be executed first when booting the system directly into the runlevel?

• A. S99lpi
• B. K99lpi
• C. PRE-S99lpi
• D. S98lpi
• E. S99a-lpi

Answer: D

NEW QUESTION 3
What happens if the Linux kernel can't mount the root filesystem when booting?

• A. An error message is shown and the administrator is asked by the kernel to specify a valid root filesystem to continue the boot process.
• B. An error message is shown and the system reboots after a keypress.
• C. An error message is shown and the system boots in maintenance mode.
• D. An error message is shown showing which device couldn't be mounted or informing that init couldn't be found.
• E. An error message is shown stating that the corresponding kernel module couldn't be loaded.

Answer: D

NEW QUESTION 4
Which is the main configuration file for the SystemV init process? (Specify the full name of the file, including path.)

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
/etc/inittab

NEW QUESTION 5
Which of the following files are used to resolve hostnames to IP addresses? (Choose TWO correct answers.)

• A. /etc/systems
• B. /etc/hosts
• C. /etc/network
• D. /etc/dns.conf
• E. /etc/resolv.conf

Answer: BE

NEW QUESTION 6
What mount option must be used in /etc/fstab when mounting an iSCSI target?

• A. _santarget
• B. iscsi
• C. waitiscsi
• D. _netdev

Answer: D

NEW QUESTION 7
What effect does the –f option to the update-rc.d command have on files in the /etc/rcX.d/ and /etc/init.d/ directories?

• A. It will force the removal of the symlinks in /etc/rcX.d/ even when the links are read only
• B. It will remove both the symlinks in /etc/rcX.d/ and the init script in /etc/init.d/
• C. It will remove the init script in /etc/init.d/ and the symlinks in /etc/rcX.d/ and update the package information of installed files
• D. It will force the removal of symlinks in /etc/rcX.d/ even if the corresponding init script still exists in/etc/init.d/

Answer: D

NEW QUESTION 8
Please enter the complete path to the main SysV init process configuration file.

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
/etc/inittab

NEW QUESTION 9
Which of the following is a userspace application used to modify EFI entries on a Linux system?

• A. efieditor
• B. configefi
• C. efimanager
• D. efiboottmgr
• E. efibootedit

Answer: D

NEW QUESTION 10
What does a 0 in the last field (fsck order) of /etc/fstab indicate about the filesystem?

• A. The filesystem should be checked before filesystems with higher values.
• B. The filesystem should be checked after filesystems with higher values.
• C. The filesystem check counter is ignored.
• D. The filesystem has been disabled from being checked and mounted on the system.
• E. The filesystem does not require an fsck check when being mounted.

Answer: E

NEW QUESTION 11
Which of the following init systems comes along with an own UEFI boot loader?

• A. systemd
• B. SysVinit
• C. Upstart
• D. OpenRC
• E. launchd

Answer: A

NEW QUESTION 12
Which of the following commands lists IPv4 addresses and MAC addresses of network nodes that the local system has seen on its directly connected IP networks?

• A. arp
• B. ifconfig
• C. ipadm
• D. iwlist

Answer: A

NEW QUESTION 13
On a Linux node with multiple active networks interfaces, each having a default route to the Internet, which default route is preferred?

• A. The default route with the highest metric value
• B. The default route with the highest MTU value
• C. The default route with the lowest TTL value
• D. The default route with the highest TTL value
• E. The default route with the lowest metric value

Answer: E

NEW QUESTION 14
What mechanism does collectd use to gather monitoring information on systems?

• A. It uses a library of plugins.
• B. A master server connects to a collectd service on each machine to retrieve the information.
• C. It collects its own information on each server and sends that to a master server.
• D. It makes SNMP queries to the clients being monitored.

Answer: A

NEW QUESTION 15
Which of the filter keywords below could be used in the following command:
tcpdump –i eth0 ______203.0.113.8 (Choose three.)

• A. host
• B. ip
• C. src
• D. dst
• E. ipv6

Answer: ACD

NEW QUESTION 16
In this example output, which descriptions match the purpose of the free, buff and cache columns? (Choose THREE correct answers.)
# vmstat 1 100
procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
0 0 0 282120 134108 5797012 0 0 0 2 0 0 0 0 100 0
0 0 0 282120 134108 5797012 0 0 0 0 1007 359 0 0 100 0
0 0 0 282120 134108 5797012 0 0 0 0 1117 577 0 0 100 0
0 0 0 282120 134108 5797012 0 0 0 0 1007 366 0 0 100 0

• A. Used swap space
• B. RAM available for filesystem buffers
• C. Available free RAM
• D. RAM used for buffers
• E. RAM used for filesystem cache

Answer: CDE

NEW QUESTION 17
Which command is used to unload a single module currently loaded by the kernel without unloading any modules that it depends upon? (Specify the command with or without path information)

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
rmmod, /sbin/rmmod

NEW QUESTION 18
Which of the following is an example path to a Linux software RAID array?

• A. /dev/raid0
• B. /dev/rd1
• C. /dev/pr0
• D. /dev/md1

Answer: D

NEW QUESTION 19
Which directory contains system-specific systemd unit files? (Specify the full path to the directory.)

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
/lib/systemd/system

NEW QUESTION 20
The correct command sequence to create and mount logical volumes on a Linux system is:

• A. lvcreate, pvcreate, vgcreate, mkfs, mount
• B. pvcreate, vgcreate, lvcreate, mkfs, mount
• C. vgcreate, lvcreate, pvcreate, mount, mkfs
• D. mkfs, pvcreate, vgcreate, lvcreate, mount
• E. pvcreate, lvcreate, vgcreate, mkfs, mount

Answer: B

NEW QUESTION 21
In the following output, the load averages represent the system load averages for what time frames? 12:10:05 up 18 days, 19:00, 2 users, load average: 0.47, 24.71, 35.31

• A. 1, 5 and 15 minutes
• B. 1, 15 and 30 minutes
• C. 1, 15, and 30 seconds
• D. 15, 30 and 60 minutes
• E. 15, 30 and 60 seconds

Answer: A

NEW QUESTION 22
What is the main template file used by autofs?

• A. default.maps
• B. auto.conf
• C. auto.master
• D. autofs.master

Answer: C

NEW QUESTION 23
Which of the following commands shows capabilities and usable frequencies for the wireless interface wlan0?

• A. iw phy pyh0 info
• B. iw dev wlan0 info
• C. iw dev wlan0 show
• D. iw phy wlan0 show
• E. iw phy0 show

Answer: A

NEW QUESTION 24
After installing a compiled kernel, it can not find any modules that are needed to be loaded. What make target was likely missed while installing the kernel?

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
make modules_install, modules_install

NEW QUESTION 25
Which file tells GRUB the paths of the filesystem partitions in both Linux format and in the GRUB syntax? (Specify the file name only with no path information)

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:
device.map

NEW QUESTION 26
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