The correct command sequence to create and mount logical volumes on a Linux system is:
What command will remove a physical volume from a volume group? (Specify ONLY the command without any path or parameters.)
What are the options to node.startup in the iscsid.conf file? (Choose TWO correct answers.)
In the below example output, which columns detail the percent of time the CPU spent running non-kernel code and the percent of time the CPU spent running kernel code? (Choose TWO 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
In capacity planning exercises, which tools assist in listing and identifying processes of interest? (Choose TWO correct answers.)
What option in the collectd configuration file is required in order to define what to start monitoring?
A system with SysV-init has a service installed called apache2. Which file controls the start and stop of this service and is referenced by the various runlevel directories?
Why is the root file system mounted read-only during boot and remounted with write permission later on?
What are the main network services used by the PXE protocol? (Choose TWO correct answers.)
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)
Which of the following commands displays the physical path of the kernel module named dummy?
Which directory contains system-specific systemd unit files? (Specify the full path to the directory.)
What command is used to send messages to all users currently logged in? (Specify ONLY the command without any path or parameters.)
Which of the following is a userspace application used to modify EFI entries on a Linux system?
Which of the following tools are used to measure memory usage? (Choose THREE correct answers.)
Which of the following commands will provide the PIDs of the processes sorted by which are using the most CPU cycles on the Linux system?
What happens if the Linux kernel can ' t mount the root filesystem when booting?
What is the command to add another IP address (192.168.1.2) to a network interface (eth0) that already has (at least) one IP address in the 192.168.1.0/24 subnet?
A network client has an ethernet interface (eth0) configured with an IP address in the subnet 192.168.0.0/24. This subnet has a router, with the IP address 192.168.0.1, that connects this subnet to the Internet. What needs to be done on the client to enable it to use the router as its default gateway? (Choose TWO correct answers.)
Which of the following filter keywords for tcpdump specify the transfer direction for network packets? (Choose TWO correct answers.)
Under which of the following circumstances would the command ping output the string (DUP!)?
Considering the following kernel IP routing table below, which of the following commands must be used to remove the route to the network 10.10.1.0/24? (Select TWO answers)
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
203.0.113.162 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0
172.16.87.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
192.168.246.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
10.10.1.0 192.168.246.11 255.255.255.0 UG 0 0 0 eth1
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
0.0.0.0 203.0.113.162 0.0.0.0 UG 0 0 0 ppp0
Consider the following /etc/fstab file:
/dev/hda1 swap swap defaults 0 0
/dev/hda2 / ext2 defaults 1 1
/dev/hda3 /home ext2 defaults 1 2
none /proc proc defaults 0 0
/dev/sdb1 /media/usb0 vfat user,noauto 0 0
What is one of the possible commands that an ordinary (non-root) user can use to mount the /dev/sdb1 partition on the /media/usb0 mount point? (Please enter the command with all parameters and/or options but without any file system type options.)
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)
Which of the following are common Linux filesystem types used for root partitions? (Choose THREE correct answers.)
What does a 0 in the last field (fsck order) of /etc/fstab indicate about the filesystem?
According to the Filesystem Hierarchy Standard (FHS), what is the path to the Linux kernel source and may be a symbolic link to the real Linux source code? (Please specify the full path with no version information.)
A new kernel version needs to be compiled to use a new feature. If the old kernel configuration file is available, which make target creates a configuration file for the new kernel based on the configuration of the old kernel?
On a server running the 3.4.50-11 Linux kernel, which file in the /boot directory contains the kernel configuration parameters?
Which directory contains the system-specific udev rule files? (Specify the absolute path including the directory name)
What is the device name for the first SCSI tape drive on a system when used without automatic rewinding after each write operation? (Please specify the full path to the device.)
Which of the following files will be looked for and used by GNU make, if one of them exists, unless a different file is specified on the command line when trying to compile software from source code? (Choose TWO correct answers.)
When a makefile is included in a source code package, what are commonly defined targets in the file?
Which file contains the text message that is displayed after logging into the console? (Specify the full name of the file, including path.)