Lpi 201-450 Online Practice Questions and Exam Preparation

Lpi 201-450 Online Questions & Answers

• Question 51:

  After a lot of write operations, the administrator want to ensure that the kernel flushes the file system buffers to disk. Which command will accomplish this? (Specify ONLY the command without any path or parameters.)

  sync

• Question 52:

  Which of the following commands can be used to list IPv4 addresses and MAC addresses for IP devices that the system has seen on the local network?

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

• Question 53:

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

• Question 54:

  In which directory tree are files modified when changing kernel parameters using the command sysctl?

  A. /sys/kernel/
  B. /proc/kernel/
  C. /proc/sys/
  D. /lib/sys/
  E. /sys/proc/
  C. /proc/sys/

• Question 55:

  How can the label root be added to the ext2 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
  B. tune2fs -L root /dev/sda1 C. echo 'root' > /proc/fs/sda1/label

• Question 56:

  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
  A. Bandwidth in both directions
  C. Effective Latency

• Question 57:

  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)

  device.map

• Question 58:

  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)

  uid

• Question 59:

  Which of the following commands is used to set up a RAID volume?

  A. makerd
  B. mdadm
  C. mkfs.raid
  D. makeraid
  E. rdconfig
  B. mdadm

• Question 60:

  Which of the following commands creates a Btrfs subvolume named volume in/mnt?

  A. btrfs subvolume add -n volume /mnt
  B. btrfs create subvolume /mnt volume
  C. btrfs-subvolume create /mnt/volume
  D. btrfs subvolume new volume /mnt
  E. btrfs subvolume create /mnt/volume
  E. btrfs subvolume create /mnt/volume