201-450 Exam Questions - Online Test

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New LPI 201-450 Exam Dumps Collection (Question 5 - Question 14)

New Questions 5

How can the label root be added to the ext4 filesystem on /dev/sda1?

A. relabel /dev/sda1 root

B. tune2fs -L root /dev/sda1

C. echo 'root' > /proc/fs/sda1/label

D. labelfs --device /dev/sda1 root

Answer: B

New Questions 6

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 Questions 7

Which of the following are common Linux filesystem types used for root partitions? (Choose THREE correct answers.)

A. ext4

B. VFAT

C. NTFS

D. XFS

E. Btrfs

Answer: ADE

New Questions 8

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 Questions 9

The main configuration file for autofs has this entry:

/home /etc/auto.home

What is the meaning of the /etc/auto.home file?

A. It has the indirect maps for the mounting of file systems.

B. It has configuration information, such as passwords and keys, for the remote file server.

C. It has configuration information on settings for the /home mount point.

D. It is the holds the SSL key to allow authentication to the remote file server.

Answer: A

New Questions 10

Which commands are used to load modules into the Linux kernel? (Choose TWO correct answers.)

A. insmod

B. loadmod

C. kernload

D. modprobe

E. probemod

Answer: AD

New Questions 11

During booting, when the Linux kernel loads an initramfs file, which command from the initramfs will be executed first, if present?

A. /init

B. /initrd

C. /linuxrc

D. /rc.local

E. /sbin/init

Answer: A

New Questions 12

What option in the collectd configuration file is required in order to define what to start monitoring?

A. LoadModule

B. Module

C. Plugin

D. LoadPlugin

Answer: D

New Questions 13

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 is for 2.6 series kernels, bzImage is for 3.x series kernels.

C. zImage is limited to 64k, bzImage has no such restriction.

D. zImage gets loaded completely into low memory. bzImage will load into high memory once low memory is full.

Answer: D

New Questions 14

Which of the following is a side effect of extensive usage of swap space?

A. The root filesystem may become full because swap space is always located on the system root partition.

B. The overall system performance may degrade because of heavy hard disk use and memory reorganization.

C. Since processes always exist completely in either RAM or swap, regular RAM may become unused if the kernel does not move processes back from the swap space to memory.

D. The memory may become fragmented and slow down the access to memory pages. However, this can be kept to a minimum by the regular use of memfrag -d.

E. Applications need to restart because their virtual memory addresses change to reflect memory relocation to the swap address area.

Answer: B

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