Linux Questions & Answers on Linux Environment for Freshers

1. To increase the response time and throughput, the kernel minimizes the frequency of disk access by keeping a pool of internal data buffer called

a) Pooling
b) Spooling
c) Buffer cache
d) Swapping

Answer: c

2. At start of process execution, STDOUT & STDERR

a) Point to current terminal device
b) Are closed
c) Point to special files on the system
d) None of the mentioned

Answer: a

3. wtmp and utmp files contain:

a) Temporary system data
b) User login-logout log
c) The user’s command execution log
d) The user’s su and sudo attempts

Answer: b

4. Which is the core of the operating system?

a) Shell
b) Kernel
c) Commands
d) Script

Answer: b

5. ILP32 stands for

a) 32 bit Integer, Long & Pointer
b) 32 bit Integrated Long & Pointer
c) 32 bit Intelligent Long & Pointer
d) 32 bit Long & Pointer

Answer: a

6. Single Unix Specification Version 2 provides enhanced support for

a) 16 bit Unix
b) 32 bit Unix
c) 64 bit Unix
d) 8 bit Unix

Answer: c

7. Under UNIX the key board is the default input device and the monitor is the default output device

a) True
b) False

Answer: a

8. Which among the following interacts directly with system hardware?

a) Shell
b) Commands
c) Kernel
d) Applications

Answer: c

9. Applications communicate with kernel by using:

a) System Calls
b) C Programs
c) Shell Script
d) Shell

Answer: a

10. Solaris is the name of a flavor of UNIX from

a) HP
b) IBM
c) Digital Equipment Corp
d) Sun Microsystems

Answer: d

11. Which of the following is “NOT” a UNIX variant ?

a) Solaris
b) AIX
c) IRIX
d) AS400

Answer: d

12. The system calls in UNIX is written using which language

a) C
b) C++
c) Assembly Language
d) Fortran

Answer: a

13. Which of the following enables multi-tasking in UNIX?

a) Time Sharing
b) Multi programming
c) Multi user
d) Modularity

Answer: a

14. Which of the following is considered as the super daemon in Unix?

a) sysinit
b) init
c) inetd
d) proc

Answer: b

15. Unix is which kind of Operating System?

a) Multi User
b) Multi Processes
c) Multi Tasking
d) All of the mentioned

Answer: d

16. SVR4 stands for?

a) Standard Version Release 4
b) System Version Release 4
c) Standard Five Release 4
d) System Five Release 4

Answer: d

17. Lp0 device file is used to access:

a) Floppy
b) Cdrom
c) Printer
d) Tape drive

Answer: c

18. Syntax of any Unix command is:

a) command [options] [arguments].
b) command options [arguments].
c) command [options] [arguments].
d) command options arguments

Answer: a

19. SVR4 was developed by

a) Sun Microsystems
b) AT&T
c) University of Berkeley
d) Sun and AT&T jointly

Answer: d

20. Which of these is not a Unix Flavor?

a) BSD
b) MAC
c) AIX
d) IRIX

Answer: b

21. Which of the following statement is FALSE ?

a) Unix supports multiple users
b) Linux is an open source operating system and the source code is shared
c) Shell takes care of inter process communication
d) Shell provides the feature of I/O Redirection

Answer: c

22. Which of the following UNIX flavor is from IBM?

a) BSD
b) Solaris
c) HP-UX
d) AIX

Answer: d

23. x86-32 uses which programming model?

a) IP16
b) IP32
c) ILP16
d) ILP32

Answer: d

24. What are the sizes of (Integer/Long/Pointer) in LP64 programming model?

a) 8/8/8
b) 4/4/8
c) 4/8/8
d) 4/8/4

Answer: c

25. Which among the following is used to write small programs to control Unix functionalities?

a) Shell Commands
b) Shell Script
c) Filters
d) C Language

Answer: b

26. What control character signals the end of the input file?

a) ctrl + a
b) ctrl + b
c) ctrl + c
d) ctrl + d

Answer: d

27. How do you get help about the command “cp”?

a) help cp
b) man cp
c) cd ?
d) none of the mentioned

Answer: b