LINUX MULTIPLE CHOICE QUESTION

Check your Knowledge Press to Start www.prolearninghub.com

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

2) What is property of UNIX ? Multi user Multi tasking Multi programming All of above www.prolearninghub.com

3) Solaris is product of ? IBP IBM Sun Microsystems Microsoft www.prolearninghub.com

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 www.prolearninghub.com

5) Kernel is known as core of operating system. True False www.prolearninghub.com

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

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

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 www.prolearninghub.com

9) Layer one of the OSI model is Network layer Transport layer Link layer Physical layer www.prolearninghub.com

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

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

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 www.prolearninghub.com

13) x86-32 uses which programming model? IP16 IP32 ILP16 ILP32 www.prolearninghub.com

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

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 www.prolearninghub.com

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 www.prolearninghub.com

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 www.prolearninghub.com

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

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

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

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

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

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 www.prolearninghub.com

24) Name that command which use to copy files ssh telnet ftp none www.prolearninghub.com

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

26) To see online manuals we use: www.prolearninghub.com

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

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

29) SVR4 stands for: System Five Release 4 System Version Release 4 System Five Relocated 4 Storage Files Five Release 4 www.prolearninghub.com

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

31) Select the most priority tasking in multi-tasking Modularity Time sharing Multi tasking Multi sharing www.prolearninghub.com

32) To control LINUX functionalities we use: Shell command C Java Shell script www.prolearninghub.com

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

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

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 www.prolearninghub.com

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 www.prolearninghub.com

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 www.prolearninghub.com

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

39) Obtaining of the PID can be done by the utility ps pgrep pidof All of the mentioned www.prolearninghub.com

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 www.prolearninghub.com

41) The 32-bit internet address 10000000 00001010 00000010 00011110 will be written in dotted decimal notation as 128.10.2.30 210.20.2.64 168.10.2.30 None of these www.prolearninghub.com

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 www.prolearninghub.com

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 www.prolearninghub.com

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

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 www.prolearninghub.com

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

47) Which command we can use to view inode numbers -j -k www.prolearninghub.com

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

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

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

The Results