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LPI 201-450 Practice Test Questions, LPI 201-450 Exam Practice Test Questions
The LPI 201-450 exam issued by the Linux Professional Institute validates the ability of the candidates to administer small- and medium-sized mixed networks. Passing this test along with another associated exam, LPI 202-450, leads to awarding the LPIC-2 certification.
NEW QUESTION # 93
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/dns.conf
- D. /etc/resolv.conf
- E. /etc/network
Answer: B,D
NEW QUESTION # 94
What is a key difference between a zImage and bzImage kernel image?
- A. zImage is compressed using gzip, bzImage is compressed using bzip2.
- B. zImage gets loaded completely into low memory. bzImage will load into high memory once low memory is full.
- C. zImage is for 2.6 series kernels, bzImage is for 3.x series kernels.
- D. zImage is limited to 64k, bzImage has no such restriction.
Answer: B
NEW QUESTION # 95
Which of the following commands shows capabilities and usable frequencies for the wireless interface wlan0?
- A. iw phy wlan0 show
- B. iw phy0 show
- C. iw phy pyh0 info
- D. iw dev wlan0 show
- E. iw dev wlan0 info
Answer: C
NEW QUESTION # 96
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 : 192.168.1.0
- B. sshd : 192.168.1.0 netmask 255.255.255.0
- C. sshd : 192.168.1.
- D. sshd : 192.168.1
- E. sshd : 192.168.1.0/255.255.255.0
Answer: C,E
NEW QUESTION # 97
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. RAM used for buffers
- B. RAM available for filesystem buffers
- C. Available free RAM
- D. RAM used for filesystem cache
- E. Used swap space
Answer: A,C,D
NEW QUESTION # 98
What does the -p3 option to the patch command do?
- A. patch continues execution as long as there are three or fewer errors.
- B. It instructs patch to look up to three lines of context before or after the declared line in the original file for a match.
- C. It will strip off path information from each file mentioned in the patch file up to and including the third / character.
- D. patch will keep three previous versions of each file in the output to prevent loss of change history.
- E. It instructs patch to conform more strictly to the POSIX standard.
Answer: C
NEW QUESTION # 99
CORRECT TEXT
A database application requires a maximum shared memory segment (shmmax) of 2GB (2147483648 Bytes). Which configuration file should be modified to set this kernel parameter permanently? (Specify the full name of the file, including path.)
Answer:
Explanation:
/etc/sysctl.conf
NEW QUESTION # 100
CORRECT TEXT
What command ensures that the file systems are written to disk after a lot of write operations? (Specify ONLY the command without any path or parameters.)
Answer:
Explanation:
sync
NEW QUESTION # 101
Fill in the blank.
After installation of a self-compiled kernel, modules that need to be loaded cannot be found. What make target was likely missed while installing the kernel? (Specify ONLY the make target without any command or parameters.)
Answer:
Explanation:
modules_install
NEW QUESTION # 102
Due to extreme system use, a Linux system requires some additional swap space. To initialize 5 GB of additional swap space, which combination of commands should be used?
- A. touch -5G /tmp/swapfile; swapon /tmp/swapfile
- B. dd if=/dev/zero of=/tmp/swapfile bs=1024 count=5120000; mkswap /tmp/ swapfile; mount /tmp/swapfile
- C. dd if=/dev/zero of=/tmp/swapfile bs=1024 count=5120000; swapon /tmp/swapfile
- D. dd if=/dev/zero of=/tmp/swapfile bs=1024 count=5120000; mkswap /tmp/ swapfile; swapon /tmp/swapfile
- E. mkswap /tmp/swapfile 512000; swapon /tmp/swapfile
Answer: D
NEW QUESTION # 103
What does a 0 in the last field (fsck order) of /etc/fstab indicate about the filesystem?
- A. The filesystem does not require an fsck check when being mounted.
- B. The filesystem should be checked before filesystems with higher values.
- C. The filesystem has been disabled from being checked and mounted on the system.
- D. The filesystem should be checked after filesystems with higher values.
- E. The filesystem check counter is ignored.
Answer: A
NEW QUESTION # 104
A correctly formatted entry has been added to /etc/hosts.deny to prevent certain clients from connecting to a service but this is having no effect. What could be the cause of this?
(Choose TWO correct answers.)
- A. There is a conflicting entry in /etc/hosts.allow.
- B. The service does not support tcpwrapper.
- C. The machine needs to be restarted.
- D. The service needs to be restarted.
- E. tcpd needs to be sent the HUP signal.
Answer: A,B
NEW QUESTION # 105
What information is found in the following excerpt from the file /proc/mdstat? (Choose two.)
- A. 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
- B. The information [UU_] means, that the raid is missing one disk and is not fully redundant
- C. One of the disks in /dev/md0 has failed and a spare disk is used to recreate full redundancy
- 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 spare disk /dev/sda1 is used to restore full redundancy after the current recovery
Answer: B,C
NEW QUESTION # 106
What is the purpose of the smartd daemon?
- A. It monitors process activity and helps the kernel decide which processes to kill when the kernel overcommits.
- B. It attempts to automatically repair file systems upon a failed file system check.
- C. It monitors certain disk drives and attempts to predict when they will fail.
- D. It is a user space daemon used for reading smart cards and integrated circuit chips.
Answer: C
NEW QUESTION # 107
Which command is used to make an exact copy, at a single point in time, of a logical volume while still allowing the original logical volume to be updated?
- A. lvm2
- B. lvsnapshot
- C. lvcclone
- D. lvsnap
- E. lvcreate
Answer: E
NEW QUESTION # 108
In the output of sar -b, what does tps stand for?
- A. Terrabit per second
- B. Traffic per second
- C. Transfers per second
- D. Total data per second
- E. Terrabyte per second
Answer: C
NEW QUESTION # 109
CORRECT TEXT
What keyword is missing in the following line from /etc/fstab in order to make a USB flash device writeable by the user fred when mounted:
/dev/sda1 /mnt/usbflash vfat defaults,users,______=fred,umask=022, 0 0
(Provide the option name only without any settings)
Answer:
Explanation:
uid
NEW QUESTION # 110
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