The following command has just been run successfully: cd /opt; tar xvf /dev/nst0; What will happen if the command sequence is run again?

The contents of /opt will have additional content added from the next file on the tape.

An error saying that there is no tape present is generated because the tape has been ejected after being used.

The contents of /opt will be restored again.

The entire contents of /opt will be replaced with the contents of the next file on the tape.

The contents of /opt will have additional content added from the next file on the tape.

A regular user, joe, has just run:./configure && make && make install to build and install a program. However, the installation fails. What could be done to install the program? (Choose TWO correct answers.)

Run make install with root privileges.

Rerun ./configure with a --prefix option where the user has permissions to write.

Install the binaries manually with suinstall.

Run make install with root privileges.

Do not run ./configure in order to maintain the default configuration for correct installation.

Rerun ./configure with a --prefix option where the user has permissions to write.

Run make install_local to install into /usr/local/.

Which of the following commands restores only those files containing lpi in their name from the archive lpifiles.tar.gz?

tar xvzf lpifiles.tar.gz --wildcards '*lpi*'

tar xvzwf lpifiles.tar.gz '*lpi*'

tar -xvfz lpifiles.tar.gz --deep '*lpi*'

tar -xvzf lpifiles.tar.gz --subdirs '*lpi*'

tar xvzf lpifiles.tar.gz --globbing '*lpi*'

What information is found in the following excerpt from the file /proc/mdstat? (Choose two.)

One of the disks in /dev/md0 has failed and a spare disk is used to recreate full redundancy

The information [UU_] means, that the raid is missing one disk and is not fully redundant

One of the disks in /dev/md0 has failed and a spare disk is used to recreate full redundancy

The spare disk /dev/sda1 is used to restore full redundancy after the current recovery

The information [UU_] means, that the raid is missing one disk and is not fully redundant

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

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

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

btrfs subvolume create /mnt/volume

btrfs subvolume add -n volume /mnt

btrfs create subvolume /mnt volume

btrfs-subvolume create /mnt/volume

btrfs subvolume new volume /mnt

btrfs subvolume create /mnt/volume

What is the purpose of a system mount unit?

It is used by the command systemd-mount and allows users to mount partitions to mount points of their choice

It is used only to mount network file systems to local mount points. It cannot be used for local media

It is created by the command systemd-fstab-generator to integrate entries from /etc/fstab into the system boot process

It is used by the command mount when using system to mount and unmount file systems

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?

It will force the removal of symlinks in /etc/rcX.d/ even if the corresponding init script still exists in /etc/init.d/

It will force the removal of the symlinks in /etc/rcX.d/ even when the links are read only

It will remove both the symlinks in /etc/rcX.d/ and the init script in /etc/init.d/

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

It will force the removal of symlinks in /etc/rcX.d/ even if the corresponding init script still exists in /etc/init.d/

What is the purpose of an initramfs during the Linux system start?

It loads required modules and starts sub sytems like LVM to make the root file system accessible to the kernel

It moves the kernel from normal system memory to initram memory to speed up kernel access

It copies the root file system's content to RAM to speed up the system and reduce writes to disk

It creates a ram disk to store volatile data for directories like /tmp to reduce writes to disk

After the downloading patch-4.6.4.xz from http://kernel.org, what are the next steps to prepare thebuild of a version 4.6.4 Linux kernel? (Choose two.)

Uncompress the file using xz to get the uncompressed patch file

Use patch to apply the uncompressed patch file to the source directory of any previous kernel version

Uncompress the file and move the resulting directory to /usr/src/linux

Apply the patch file to the kernel source directory containing kernel version 4.6.0

Apply the patch file to the kernel source directory containing kernel version 4.6.3

Uncompress the file using xz to get the uncompressed patch file

Use patch to apply the uncompressed patch file to the source directory of any previous kernel version

After manually compiling and installing a new kernel, what has to be done regarding the initramfs?

During the compilation of the Linux kernel, a new initramfs is built automatically. The new initramfs only needs to be installed

To initramfs is independent of the kernel and should not be modified unless the hardware configuration of the machine has changed

Since the initramfs contains kernel modules, a new initramfs must be built for the new kernel

During the compilation of the Linux kernel, a new initramfs is built automatically. The new initramfs only needs to be installed

The system should be restarted since the initramfs reconfigures itself for the new kernel during the startup of the system

Which of the following properties should be recorded in order to monitor the quality of a network link? (Choose two.)

Number of IPv4 and IPv6 packets

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.)

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

Update the hardware to increase the amount of available RAM to avoid using swap space

Delay any hardware upgrade until there is a significant consumption of swap space to ensure an efficient usage of the available hardware

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

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

Move the web application's scripts and content a ram disk in order to ensure fast access and to avoid the need for swap space

Update the hardware to increase the amount of available RAM to avoid using swap space

Which of the following configuration files are used by tcpwrapper?

/etc/hosts.allow and /etc/hosts.deny

/etc/tcpd.allow and etc/tcpd.deny

/etc/tcpwrapper.allow and /etc/tcpwrapper.deny

/etc/hosts.allow and /etc/hosts.deny

/etc/service.allow and /etc/service.deny

Which of the following commands adds a static IPv6 address to the network interface eth0?

ip -6 addr add new 2001:db8::1337/64 dev eth0

ip add addr 2001:db8::1337/64 dev eth0

ip -6 add addr 2001:db8::1337/64 dev eth0

ip addr add 2001:db8::1337/64 dev eth0

ip -6 addr add new 2001:db8::1337/64 dev eth0

ip addr add -6 2001:db8::1337/64 dev eth0

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

The default route with the lowest metric value

The default route with the highest metric value

The default route with the highest MTU value

The default route with the lowest TTL value

The default route with the highest TTL value

The default route with the lowest metric value

LPI 201-450 Practice Test 4 - Free Online Exam Questions 121-160

Which of the following are common backup systems used in Linux? (Choose TWO correct answers.)

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