1. LINUX
MULTIPLE CHOICE QUESTION

2. Check your Knowledge
Press to Start

3. 1) The system calls in UNIX is written using which language ?
C language
C++
Assembly
Java

4. 2) What is property of UNIX ?
Multi user
Multi tasking
Multi programming
All of above

5. 3) Solaris is product of ? IBP IBM Sun Microsystems Microsoft

6. 4) What is meaning of ILP32 ? 32 bit Integrated, Long & Pointer
32 bit Integer, Lost & Pointer
32 bit Integer, Long & Point
32 bit Integer, Long & Pointer

7. 5) Kernel is known as core of operating system.
True
False

8. 6) Identify the true functionality of shell ?
A) Authenticates user
B) Interprets commands
C)Allocates time and memory to programs
Only A and B

9. 7) A process can only run in ___ ?
Background
Front end
Both side
None of these

10. 8) Which of the following below are true functionalities of Kernel?
Allocates time and memory to programs
Authenticates user
Interprets commands
All choices are correct

11. 9) Layer one of the OSI model is
Network layer
Transport layer
Link layer
Physical layer

12. 10) SVR was developed by: Sun microsystems AT & T
University of Barkley
Sun and AT&T jointly

13. 11) Which of these is not a Unix Flavor?
BSD
MAC
AIX
IRIX

14. 12) Identify the false statement.
Unix supports multiple users
Linux is an open source operating system and the source code is shared
Shell takes care of inter process communication
Shell provides the feature of I/O Redirection

15. 13) x86-32 uses which programming model?
IP16
IP32
ILP16
ILP32

16. 14) Which of the following NIS clients, finds and stores information about an NIS domain and server?
ypwhich
ypbind
ypcat
yppoll

17. 15) Which of the following is the BEST way to set up SSH(Secure Shell) for communicating between System without needing passwords?
A) Use ssh-keygen for generating public-private keys.
B) Disable passwords on specific accounts that will use SSH.
Both A and B
None of these

18. 16) Which of the following command kill all the process including shell ?
A) kill kill 0
B) kill -9 kill 0
C) kill -s kill 0
Both B and C

19. 17) Which of the following statement is true ?
echo $$ return PID of login shell and echo $? return status of last command 
echo $$ return status of last command and echo $? return PID of login shell
echo $$ and echo $? return some integer value of no significance
All of the statements are false

20. 18) Priority of the process can be changed using which of the following command ?
Nice
renice
chproiity
None of these

21. 19) What does GNU stand for?
GNU's not Unix
Greek Needed Unix
General Unix
None of these

22. 20) How can we find the path of file.
By which command
By where command
By wexec command
None of these

23. 21) Command used to count number of character in a file is
grep wc
count
cut

24. 22) Which of these commands could you use to show one page of output at a time?
Less
sed
Pause
grep

25. 23) Which commands will give you information about how much disk space each file in the current directory uses?
Is-I
IS-Ia du
Is-a

26. 24) Name that command which use to copy files
ssh
telnet
ftp
none

27. 25) to change default permissions for files and directories at the time of creation we use:
Chmod
Chown
Umask
chgrp

28. 26) To see online manuals we use:

29. 27) For writing the first 20 lines of file to screen we use ____ Command.
The head
The header
Can use both
None of these

30. 28) To clear the screen ____ command used.
A) clear
B) %clear
C) clrscr
Either A or C

31. 29) SVR4 stands for: System Five Release 4 System Version Release 4
System Five Relocated 4
Storage Files Five Release 4

32. 30) Lp0 device file is used to access ?
Tape drive
Printer
Mouse
floppy

33. 31) Select the most priority tasking in multi-tasking
Modularity
Time sharing
Multi tasking
Multi sharing

34. 32) To control LINUX functionalities we use:
Shell command C
Java
Shell script

35. 33) What control character signals the end of the input file ?
Ctrl + s
Ctrl + z
Ctrl + n
Ctrl + d

36. 34) Which command in LINUX is used for description of any command ?
Help
Man
Detail
Shortdetail

37. 35) Which one of the following string will print by this program
35) Which one of the following string will print by this program? #include<stdio.h> #include<pthread.h> int main() { printf(“prolearninghub\n"); pthread_exit("Bye"); printf("Linux"); return 0; }
Linux
prolearninghub
bye
None of these

38. For the below mentioned code, int main() { int fd; fd = open(“logfile”, O_CREAT|O_RDWR, 0600); lseek(fd, 5, SEEK_CUR); write(fd, “Hello”, 5); return 0; } 36) What is the logfile size now if it’s initially was 1024 bytes? 5
1024
1029
1034

39. Code snippet (file1 size is 2024) f1 = fopen (file1, RDWR, RWX) lseek(f1,1024,SEEK_SET) write(f1,buf,10) 37) What is offset now?
1024
1034
2034
2054

40. 38) Identify the system which does not support proc file system?
IBM AIX
QNX
Solaries
None of the mentioned

41. 39) Obtaining of the PID can be done by the utilityps
pgrep
pidof
All of the mentioned

42. 40) Which one of the following contains various bits of information about the state of power management?
A) /proc/acpi
B) /proc/apm
both A and B
None of the mentioned

43. 41) The 32-bit internet address will be written in dotted decimal notation as
None of these

44. 42) Which class network is used for a collection of a small number of networks with a large number of nodes?
Class A
Class B
Class C
All the classes

45. 43) What type of addressing format is used by Class A network
Net.Net.Net.Node
Net.Net.Node.Node
Net.Node.Net.Node
Net.Node.Node.Node

46. 44) What types of installations require a special boot disk?
NFS
FTP
PCMCIA
All of above

47. 45) What command is used to assign executable permission to the owner of the file named "letter"?
chmod ugo + x letter
chmod u + x letter
chmod u + w letter
chmod g + x letter

48. 46) What command is used to compare the files?
ccp du
cmp
comp

49. 47) Which command we can use to view inode numbers-j -k

50. 48) Which of the following NIS clients returns the name of the NIS server used by the NIS client?
ypwhich
ypbind
ypcat
yppoll

51. 49) The hierarchy of a series of directories branching in a user system starts from
home
root
/home
/root

52. 50) The _______ file contains all the information on users who may log into your system
/etc/passwd
/etc/password
/etc
/etc/pass

53. The Results