Free LPI 201-450 Exam Questions

Become LPI Certified with updated 201-450 exam questions and correct answers

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Total 162 Questions | Updated On: Aug 21, 2019

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Question 1

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 toensure an efficient usage of the available hardware

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

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

D : ve the web application’s scripts and content a ram disk in order to ensure fast access and to avoid the need for swap space

E : date the hardware to increase the amount of available RAM to avoid using swap space

Answer: A,C

Question 2

Which files are updated as devices are mounted and unmounted to provide information on

the currently mounted devices and the options used? (Choose TWO correct answers.)

A : /proc/dtab

B : /etc/mtab

C : /etc/fstab

D : /proc/mounts

E : /proc/devices

Answer: C

Question 3

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 : ed swap space

B : M available for filesystem buffers

C : ailable free RAM

D : M used for buffers

E : RAM used for filesystem cache

Answer: A,C,D

Question 4

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

A : error message is shown and the administrator is asked by the kernel to specify a valid root filesystem to continue the boot process.

B : error message is shown and the system reboots after a keypress.

C : error message is shown and the system boots in maintenance mode.

D : error message is shown showing which device couldn't be mounted or informing that init couldn't be found.

E : error message is shown stating that the corresponding kernel module couldn't be loaded.

Answer: D

Question 5

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

A : adm --remove /dev/md0 /dev/sdd1

B : adm --zero-superblock /dev/sdf3

C : adm --force-fault /dev/md2 /dev/sde2

D : adm --fail /dev/md0 /dev/sdc1

E : adm /dev/md0 --offline /dev/sdc1

Answer: D

Page: 1 / 33

Total 162 Questions | Updated On: Aug 21, 2019

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