Test your basic knowledge |

Linux Administration

Subject : it-skills

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. Reports a snapshot of the current processes
ifdown
143
ps
service

2. Root directory of file system (not the user root's home dir)
'/'

3. Kills all processes by name
/sbin
killall
stat
/home

4. Shows command history
mv
history
cat {filename}
file

5. Displays the 10 bottom lines of a file
43
host
cp
tail

6. Host-specific system-wide configuration files
/media
/etc
rmdir
chgrp

7. Parses for string
25
/opt
du -a
grep

8. Displays all file space usage
du -a
/mnt
tail
nslookup

9. Essential command binaries that need to be available in single user mode; for all users - e.g. - cat - ls - cp.
/bin
netstat -i
killall
ls

10. HTTP
netstat
chgrp
80
/usr

11. Deletes a file
cat
bg
rm
mkdir

12. HTTPS
156
443
usermod
kill

13. Temporarily mounted filesystems
/mnt
pwd
ifdown
cp

14. Kills a process by pid
kill
/lib
/tmp
ifconfig

15. Elevate rights to that of root
sudo
netstat -i
passwd
fg

16. Displays calendar
grep '{pattern}' {file}
cal
110
ethtool

17. Prints file type
file
curl
179
/mnt

18. SMTP
110
/usr
25
ping

19. Displays kernel routing tables
cal
netstat -r
mkdir
/sbin

20. Lists all stopped/paused background. Resumes a stopped job
ifdown
bg
grep
netstat -i

21. SFTP
/sbin
ifconfig
115
sudo

22. SQL
179
118
53
groupadd

23. Virtual filesystem documenting kernel and process status as text files - e.g. uptime or network. In Linux it corresponds to a Procfs mount
/proc
/sbin
pwd
du

24. Contains essential devices
/dev
cat {filename}
cal
du

25. Variable files—files whose content is expected to continually change during normal operation of the system—such as logs & spool files & and temporary e-mail files.
/var
stat
/bin
df

26. Essential system binaries : init - ip - mount
/sbin
more {filename}
/dev
fg

27. SNMP
cp
161
ifconfig -a
21

28. Libraries essential for the binaries in /bin/ and /sbin/
mv
groupadd
/lib
man

29. Downloads a file from the internet
uname -a
dig
rm
wget

30. SQL
passwd
156
cal
stat

31. Contains Boot loader files - e.g. - kernels - initrd; often a separate partition
ifdown
df
cat > {filename}
/boot

32. Reverse dns lookup
w
/tmp
dig-x
/root

33. Telnet
man
grep '{pattern}' {file}
23
cat > {filename}

34. Creates a directory
/tmp
mkdir
110
chgrp

35. Displays the status of a service or all services
curl
service
143
rm

36. Checks web connectivity (displays page contents)
curl
/home
top
usermod

37. IMAP
file
more {filename}
23
143

38. BGP
161
179
w
25

39. Display all interfaces
143
/media
ifconfig -a
pwd

40. View a text file - View file one screen at a time
cat {filename} | more
pwd
161
du -a

41. Changes password for a user
du -a
passwd
file
man

42. Query internet name servers interactively
usermod
nslookup
file
ifup

43. Prints file information
cat > {filename}
stat
/media
du

44. Kerberos password
/var
464
netstat -r
curl

45. Check IP Addresses of active interfaces
ifconfig
/dev
groupadd
118

46. Prints contains of text file
chgrp
/usr
cat
sudo

47. Moves a file with the option of renaming it
mv
chown
cat {filename} | more
22

48. Creates a group for users
143
/etc
groupadd
156

49. Displays manual or help document for a command/application
143
man
touch
156

50. DNS
53
groupadd
/tmp
fg