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New Questions 5
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 6
Which files are updated as devices are mounted and unmounted to provide information on the currently
mounted devices and the options used? (Choose TWO correct answers.)
A. /proc/dtab
B. /etc/mtab
C. /etc/fstab
D. /proc/mounts
E. /proc/devices
Answer: BD
New Questions 7
What is the main template file used by autofs?
A. default.maps
B. auto.conf
C. auto.master
D. autofs.master
Answer: C
New Questions 8
What is the purpose of the command udevadm monitor?
A. It listens to kernel events produced by a udev rule and print information to the console.
B. It monitors the /dev directory for new devices.
C. It monitors the udev process and prints performance statistics to the console.
D. It communicates with D-Bus to setup new devices.
Answer: A
New Questions 9
Where would fsck put any unreferenced file or file fragments on a ext4 filesystem?
A. recover
B. lost+found
C. back
D. lost
Answer: B
New Questions 10
Which directory in /dev/disk/ can be used to determine the UUID of a connected hard disk?
Answer:
/dev/disk/by-uuid, by-uuid, /dev/disk/by-uuid/
New Questions 11
Which commands below are useful to collect data about remote filesystem connections? (Choose TWO correct answers.)
A. pidstat
B. nfsiostat
C. sadf
D. cifsiostat
Answer: BD
New Questions 12
Which command is used to install a new LILO boot loader?
A. lilo
B. lilo-config
C. lilo-install
D. install-lilo
Answer: A
New Questions 13
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)
Answer:
uid
New Questions 14
Which command is used to create a ISO9660 filesystem? (Specify ONLY the command without any path or parameters.)
Answer:
mkisofs, genisoimage
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