A Linux server running systemd booted to rescue.target for maintenance. Which commands are used to restore the server to its usual target? (Choose two.)
Which of the following commands displays the physical path of the kernel module named dummy?
Amodprobe ""i dummy
Bmodinfo ""n dummy
Cmodpath ""v dummy
Ddepmod ""n dummy
Emodshow ""p dummy
Which of the following is a userspace application used to modify EFI entries on a Linux system?
Aefieditor
Bconfigefi
Cefimanager
Defiboottmgr
Eefibootedit
Which of the following commands adds a static IPv6 address to the network interface eth0?
Aip add addr 2001:db8::1337/64 dev eth0
Bip -6 add addr 2001:db8::1337/64 dev eth0
Cip addr add 2001:db8::1337/64 dev eth0
Dip -6 addr add new 2001:db8::1337/64 dev eth0
Eip addr add -6 2001:db8::1337/64 dev eth0
After the downloading patch-4.6.4.xz from http://kernel.org, what are the next steps to prepare the build of a version 4.6.4 Linux kernel? (Choose two.)
AUncompress the file and move the resulting directory to /usr/src/linux
BApply the patch file to the kernel source directory containing kernel version 4.6.0
CApply the patch file to the kernel source directory containing kernel version 4.6.3
DUncompress the file using xz to get the uncompressed patch file
EUse patch to apply the uncompressed patch file to the source directory of any previous kernel version
Question 6
Linux Kernel
0
Question 7
Networking Configuration
Question 8
Advanced Storage Device Administration
Question 9
Filesystem and Devices
Question 10
Filesystem and Devices
Question 11
System Maintenance
Question 12
Filesystem and Devices
Question 13
Advanced Storage Device Administration
Question 14
Filesystem and Devices
Question 15
System Startup
Question 16
System Startup
Question 17
System Startup
Question 18
System Startup
Question 19
Linux Kernel
Question 20
System Maintenance
Question 21
Networking Configuration
Question 22
System Maintenance
Question 23
System Maintenance
Question 24
Capacity Planning
Question 25
Networking Configuration
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On a server running the 3.4.50-11 Linux kernel, which file in the /boot directory contains the kernel configuration parameters?
Aconfig-linux-3.4.50-11
Bconfig-3.4.50-11
Csystem-3.4.50-11
Dvmlinuz-3.4.50-11
Erc.config-3.4.50-11
Which of the following commands shows capabilities and usable frequencies for the wireless interface wlan0?
Aiw phy pyh0 info
Biw dev wlan0 info
Ciw dev wlan0 show
Diw phy wlan0 show
Eiw phy0 show
What is the minimum number of disks required in a fully redundant RAID5 array?
A1
B2
C3
D4
E5
The following command has just been run successfully:
Cd /opt; tar xvf /dev/nst0;
What will happen if the command sequence is run again?
AAn error saying that there is no tape present is generated because the tape has been ejected after being used
BThe contents of /opt will be restored again
CThe entire contents of /opt will be replaced with the contents of the next file on the tape
DThe contents of /opt will have additional content added from the next file on the tape
Which of the following commands erases the contents of the /dev/sdb3 partition?
Arm /dev/sdb3
Bdd if=/dev/zero of=/dev/sdb3
Cdd of=/dev/zero if=/dev/sdb3
Dumount /dev/sdb3
FILL BLANK -
What command is used to send messages to all users currently logged in? (Specify ONLY the command without any path or parameters.)
FILL BLANK -
What keyword is missing in the following line from /etc/fstab in order to grant the user fred write access to the files in the vfat file system on /dev/sdb1:
/dev/sdb1 /mnt/usbflash vfat defaults, _________=fred, umask=022, 0 0
(Specify ONLY the option name without any path or parameters.)
Which sub command to crypsetup shows information about an encrypted LUKS partition?
AluksDump
BluksInfo
CluksDebug
DluksLS
EluksShow
Which of the following is a CD-ROM filesystem standard?
AOSI 9660
BISO 9660
CSR0FS
DISO 8859
EROM-EO
Which of the following init systems comes along with an own UEFI boot loader?
Asystemd
BSysVinit
CUpstart
DOpenRC
Elaunchd
Which command is used to install a GRUB boot loader into the master boot record?
Agrub-install
Bgrub-mkconfig
Cgrub-install-mbr
Dgrub-glue-mbr
Egrub-mbr-setup
If the file containing the Linux kernel is deleted, what happens when the system boots?
AThe system starts normally since the bootloader copies the kernel to the master boot record of the hard disk
BInstead of the kernel, the initramfs is loaded and instructed to mount the root filesystem and reinstall the kernel from the original package or from source
CThe bootloader mounts the root filesystem read-only and launches /bin/sh directly in order to allow the administrator to reinstall the kernel
DWithout a kernel system cannot boot and, depending on the bootloader, an error is displayed
What is the purpose of an initramfs during the Linux system start?
AIt loads required modules and starts sub sytems like LVM to make the root file system accessible to the kernel
BIt moves the kernel from normal system memory to initram memory to speed up kernel access
CIt copies the root file system's content to RAM to speed up the system and reduce writes to disk
DIt creates a ram disk to store volatile data for directories like /tmp to reduce writes to disk
How is the source code for the main Linux kernel modules distributed?
AIt is included with the Linux kernel source code
BThe kernel modules are downloaded on demand as they are used during compilation
CThe kernel modules have their own release cycle and can be maintained separately from the Linux kernel source
DIt is provided as a separate download alongside the Linux kernel source code for the same version
In the following output of the command uptime, the load averages represent the system load averages for what time frames?
12:10:05 up 18 days, 19:00, 2 users, load average: 0.47, 24.71, 35.31
A1, 5 and 15 minutes
B1, 15 and 30 minutes
C5, 20 and 25 seconds
D15, 30 and 60 minutes
E15, 45 and 90 seconds
Which of the following properties should be recorded in order to monitor the quality of a network link? (Choose two.)
ABandwidth in both directions
BNumber of nodes using the link
CEffective Latency
DNumber of IPv4 and IPv6 packets
ENumber of used TCP ports
Which command reports information on memory usage, paging and block input/output?
Afree
Bmemshow
Clsof
Dpidof
Evmstat
In order to gather performance data with sar over a longer period of time, which command should be run periodically from cron?
Asa1
Bsarmon
Csarec
Dsadf
Esarcron
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.)
ADelay any hardware upgrade until there is a significant consumption of swap space to ensure an efficient usage of the available hardware
BCreate a RAID 1 device on the two swap partitions to avoid data loss in case swap space has to be used in the future
CConsider the installation of an additional application server to distribute the load if the expected growth continues over several months
DMove the web application's scripts and content a ram disk in order to ensure fast access and to avoid the need for swap space
EUpdate the hardware to increase the amount of available RAM to avoid using swap space
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. Which of the following commands can be used on the client to enable it to use the router as its default gateway? (Choose two.)
