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. Displays all current running processes (similar to task manager)
top
kill
less {filename}
'/'

2. SNMP
grep
finger
161
/var/log

3. Prints contains of text file
23
rm
/usr
cat

4. Display all interfaces
sudo
ifconfig -a
uname -a
cat {filename}

5. Changes password for a user
143
ethtool
passwd
apropos

6. Reverse dns lookup
dig-x
/media
mv
grep '{pattern}' {file}

7. SQL
118
ps
/boot
du -a

8. Elevate rights to that of root
110
sudo
'/'
/sbin

9. ____ is found at: cd /var/mail then vi into each mail (administrator - www-data - nagios etc.)
mail
20
kill
dig

10. IMAP
143
man
nslookup
dig

11. Displays the 10 top lines of a file
tail
head
netstat -i
cal

12. Temporarily mounted filesystems
wget
fg
ls
/mnt

13. Displays calendar
cal
20
156
/opt

14. Ftp Control
21
groupadd
touch
uname -a

15. View a text file - View file one screen at a time
pico {filename}
cat {filename} | more
21
118

16. 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/log
service
/var
cat > {filename}

17. Users' home directories - containing saved files - personal settings - etc
touch
43
grep
/home

18. Displays Kernel information
80
uname -a
dig
cat > {filename}

19. Search for all Unix commands that match keyword - e.g apropos file.
156
service
apropos
/home

20. Kerberos password
mkdir
43
cal
464

21. Lists all files within a directory (including hidden)
ls
ls -a
df
dig-x

22. View a text file - Use text editor and don't save.
/bin
groupadd
cat > {filename}
pico {filename}

23. Copies a file
cp
118
443
head

24. Does a DNS lookup or reverse dns lookup
mail
/dev
host
156

25. SQL
du
156
curl
uname -a

26. SMTP
25
history
uptime
page {filename}

27. Configuration for optional installed software
netstat -r
ifconfig -a
/opt
/media

28. Prints network connections - routing tables - interface stats - masq connections and multicast relationships
ifdown
netstat
file
mkdir

29. Check IP Addresses of active interfaces
netstat -i
ifconfig
uptime
156

30. Virtual filesystem documenting kernel and process status as text files - e.g. uptime or network. In Linux it corresponds to a Procfs mount
43
/proc
cal
/var/log

31. BGP
179
ifdown
/sbin
less {filename}

32. Displays a table of all network interfaces / errors
/root
netstat -i
/lib
53

33. Ftp Data
21
kill
25
20

34. Changes ownership of a file or directory
mv
chown
groupadd
history

35. SFTP
115
uptime
apropos
/var

36. User root's home directory
/root
23
uname -a
dig-x

37. Brings an interface up
ifconfig
df
du -a
ifup

38. View a text file - View file one screen at a time
mail
more {filename}
dig
cat > {filename}

39. Reports a snapshot of the current processes
touch
groupadd
chown
ps

40. Displays the 10 bottom lines of a file
118
/root
date
tail

41. Host-specific system-wide configuration files
netstat -i
usermod
/etc
mail

42. SSH
/boot
/tmp
22
netstat -r

43. Brings the most recent job to the foreground
stat
touch
ping
fg

44. HTTP
less {filename}
80
/lib
/dev

45. Displays all file space usage
du -a
cat
rm
ps

46. Displays manual or help document for a command/application
file
man
curl
ifup

47. WHOIS
netstat -i
chgrp
sudo
43

48. View a text file - Very handy with ncftp.
156
/media
/usr
page {filename}

49. Test network connectivity
143
fg
ping
grep '{pattern}' {file}

50. Report file system disk space usage
grep
43
df
page {filename}