4.3 Where Data is Stored

Question 1

Data Storage

contain essential binaries for sys admin such as parted or ip

Answer 1

/sbin

Question 2

Data Storage

contain essential binaries for all users such as ls, mv or mkdir

Answer 2

/bin

Question 3

Data Storage

stores binaries for sys admin such as deluser or groupadd

Answer 3

/usr/sbin

Question 4

Data Storage

includes most executable files such as
free, pstree, sudo or man - useable by all users

Answer 4

/usr/local/sbin

Question 5

Data Storage

serves same purpose as /uar/local/sbin but for regular user programs

Answer 5

/user/local/bin

Question 6

Data Storage

which command to find out the location of the

which swapon

output

root?

Answer 6

/sbin/swapon

yes

Question 7

Data Storage

which command to find out the location of the

which kill

output

root?

Answer 7

/bin/kill

no

Question 8

Data Storage

which command to find out the location of the

cut kill

output

root?

Answer 8

/usr/bin/cut

no

Question 9

Data Storage

which command to find out the location of the

cut usermod

output

root?

Answer 9

/usr/sbin/usermod

Yes

Question 10

Data Storage

which command to find out the location of the

cut cron

output

root?

Answer 10

/usr/sbin/cron

Yes

Question 11

Data Storage

which command to find out the location of the

cut ps

output

root?

Answer 11

Data Storage

/bin/ps

No

Question 12

Data Storage

where is the .bashrc file found

Answer 12

~

Question 13

Data Storage

where is the bash.basrc file found

Answer 13

/etc

Question 14

Data Storage

where is the passwd file found

Answer 14

/etc

Question 15

Data Storage

where is the .profile file found

Answer 15

~

Question 16

Data Storage

where is the resolv.conf file found

Answer 16

/etc

Question 17

Data Storage

where is the sysctl.conf file found

Answer 17

/etc

Question 18

Data Storage

number elements for kernel file vmlinuz-4.15.0-50-generic found in /boot

Kernel Version

Answer 18

4

Question 19

Data Storage

number elements for kernel file vmlinuz-4.15.0-50-generic found in /boot

Major Revision

Answer 19

15

Question 20

Data Storage

number elements for kernel file vmlinuz-4.15.0-50-generic found in /boot

Minor Revision

Answer 20

0

Question 21

Data Storage

number elements for kernel file vmlinuz-4.15.0-50-generic found in /boot

Patch number

Answer 21

50

Question 22

Data Storage

what command would you use to list all hard drives and partitions in /dev

Answer 22

ls /dev/sd*

Question 23

Data Storage

old IDE drive representation

Answer 23

/dev/hd*

Question 24

Data Storage

modern NVMe drive representation

Answer 24

/dev/nvme*

Question 25

Data Storage

compare contents of /proc/meminfo to the output of the free command

free output /proc/meminfo field

Answer 25

total MemTotal/SwapTotal

Question 26

Data Storage

compare contents of /proc/meminfo to the output of the total command

free output /proc/meminfo field

Answer 26

free MemFree/SwapFree

Question 27

Data Storage

compare contents of /proc/meminfo to the output of the shared command

free output /proc/meminfo field

Answer 27

shared Shmem

Question 28

Data Storage

compare contents of /proc/meminfo to the output of the buff/cache command

free output /proc/meminfo field

Answer 28

buff/cache Buffers, Cached and SReclaimable

Question 29

Data Storage

compare contents of /proc/meminfo to the output of the available command

free output /proc/meminfo field

Answer 29

available MemAvailable

Question 30

Data Storage

Every process has a unique identifier

Answer 30

PID

Question 31

Data Storage

parent process identifier

Answer 31

PPID

Question 32

Data Storage

command to dynamically and interactively explore the running processes of the tystem

Answer 32

top

Question 33

Data Storage

print kernel ring buffer

Answer 33

dmesg

Question 34

Data Storage

query the systemd journal

Answer 34

journalctl