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 the status of a service or all services
service
/sbin
ifup
ethtool

2. List files within a directory
bg
ls
/root
uptime

3. Temporarily mounted filesystems
/mnt
du -a
161
ls -a

4. Changes directories
/proc
groupadd
cd
pico {filename}

5. dns lookup
curl
dig
service
finger

6. Parses for string
/boot
ifdown
grep
80

7. Shows command history
cp
history
df
179

8. Telnet
/usr
less {filename}
23
chgrp

9. DNS
53
dig
sudo
kill

10. Kills a process by pid
kill
head
curl
443

11. HTTP
80
mkdir
/proc
464

12. Displays current date and time
/var
22
cal
date

13. Displays all file space usage
464
du -a
/media
/bin

14. Downloads a file from the internet
netstat -i
kill
wget
80

15. Displays system uptime
118
ifconfig
du
uptime

16. Search for all Unix commands that match keyword - e.g apropos file.
apropos
chown
ls -a
usermod

17. Essential system binaries : init - ip - mount
pwd
/sbin
143
wget

18. Prints file type
groupadd
/lib
head
file

19. Lists all stopped/paused background. Resumes a stopped job
more {filename}
history
bg
w

20. POP3
179
110
file
21

21. View a text file - View file one screen at a time
22
/dev
more {filename}
bg

22. Checks web connectivity (displays page contents)
cat {filename} | more
curl
wget
464

23. SMTP
25
115
/home
cat {filename}

24. Brings and interface down
cat {filename} | more
115
more {filename}
ifdown

25. Changes password for a user
passwd
143
w
uptime

26. Moves a file with the option of renaming it
/var/log
/sbin
mkdir
mv

27. Displays the 10 top lines of a file
mv
/sbin
head
grep

28. Creates a directory
usermod
netstat -i
host
mkdir

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

30. Host-specific system-wide configuration files
/etc
ethtool
stat
mv

31. Prints current working directory
man
pwd
/var
22

32. Ftp Control
21
ps
man
cp

33. Find regular expression in file.

34. BGP
179
22
uname -a
/home

35. HTTPS
grep
443
ifconfig -a
less {filename}

36. View a text file - Very handy with ncftp.
ping
tail
page {filename}
cat {filename} | more

37. Query internet name servers interactively
/dev
service
nslookup
more {filename}

38. Log files
pico {filename}
dig-x
/var/log
mv

39. User root's home directory
/root
ifconfig
20
/tmp

40. Displays calendar
bg
cal
ps
/media

41. Prints file information
file
top
stat
118

42. View a text file - View file one screen at a time
ifup
ls
/root
cat {filename} | more

43. Mount points for removable media such as CD-ROMs
cp
/lib
/media
history

44. Prints network connections - routing tables - interface stats - masq connections and multicast relationships
/home
netstat
rm
/dev

45. Changes ownership of a file or directory
23
chown
/dev
ping

46. SQL
118
file
53
apropos

47. SNMP
/root
161
wget
netstat -r

48. Secondary hierarchy for read-only user data
/mnt
/usr
dig
'/'

49. IMAP
stat
143
file
ls

50. Configuration for optional installed software
/opt
uname -a
rmdir
touch