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. User root's home directory
/root
dig
uptime
head

2. Find regular expression in file.

3. SQL
history
20
156
grep

4. Contains essential devices
cp
25
/dev
464

5. Creates a file / updates it
touch
grep
apropos
bg

6. View a text file - Like more - with extra features
grep '{pattern}' {file}
less {filename}
passwd
stat

7. Prints network connections - routing tables - interface stats - masq connections and multicast relationships
rm
grep '{pattern}' {file}
cal
netstat

8. Essential system binaries : init - ip - mount
touch
/sbin
service
history

9. Kills a process by pid
20
22
killall
kill

10. Contains Boot loader files - e.g. - kernels - initrd; often a separate partition
/boot
/etc
ifconfig -a
/opt

11. Mount points for removable media such as CD-ROMs
head
/boot
ls -a
/media

12. WHOIS
43
ping
dig-x
wget

13. Creates a directory
grep '{pattern}' {file}
page {filename}
mkdir
/boot

14. Ftp Control
21
file
cat {filename} | more
cat > {filename}

15. Displays kernel routing tables
netstat -r
ping
80
bg

16. Adds existing user to a group
usermod
/proc
netstat
/usr

17. Telnet
/var/log
cp
23
21

18. ____ is found at: cd /var/mail then vi into each mail (administrator - www-data - nagios etc.)
curl
mail
man
ifdown

19. SNMP
161
25
cat
history

20. Elevate rights to that of root
'/'
netstat -r
sudo
ls

21. Report file system disk space usage
bg
df
25
head

22. Lists all files within a directory (including hidden)
ls -a
/proc
mkdir
23

23. Secondary hierarchy for read-only user data
/opt
du -a
/usr
ifup

24. Configuration for optional installed software
/opt
mv
finger
/mnt

25. POP3
stat
/bin
ps
110

26. Changes password for a user
passwd
rmdir
ethtool
man

27. IMAP
cal
/opt
top
143

28. SMTP
23
uname -a
25
usermod

29. Downloads a file from the internet
wget
/var
page {filename}
pico {filename}

30. Display all interfaces
ifconfig -a
43
cat {filename} | more
wget

31. Removes a directory
53
chown
143
rmdir

32. Query internet name servers interactively
chown
netstat -i
nslookup
/mnt

33. Brings and interface down
ifdown
/var
passwd
more {filename}

34. Prints contains of text file
22
curl
usermod
cat

35. Temporarily mounted filesystems
ethtool
161
df
/mnt

36. Libraries essential for the binaries in /bin/ and /sbin/
/sbin
/lib
ifconfig
w

37. Reverse dns lookup
/opt
grep '{pattern}' {file}
ifconfig -a
dig-x

38. Changes ownership of a file or directory
curl
23
chown
143

39. Displays all file space usage
netstat
/media
/home
du -a

40. Ftp Data
ls -a
20
161
host

41. Shows who is currently logged in and where
w
cd
/bin
groupadd

42. SFTP
115
ping
wget
143

43. Prints file information
118
/mnt
history
stat

44. Log files
/var/log
rm
ifdown
top

45. View a text file - View file one screen at a time
cat {filename} | more
cal
/bin
/var

46. Displays a table of all network interfaces / errors
touch
netstat -i
118
netstat

47. Displays all current running processes (similar to task manager)
mv
110
head
top

48. Shows command history
25
curl
history
/mnt

49. View a text file - View file one screen at a time
/tmp
23
more {filename}
netstat

50. Temporary files cleaned on reboot
53
/tmp
host
ifup