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11. A Unix file may be of the type :
a. Regular file
b. Directory file
c. Device file
d. Any one of the above
Discuss
Answer: (d).Any one of the above
12. Match the following for Unix system calls:

List – I List – II

(a) exec (i) Creates a new process

(b) brk (ii) Invokes another program overlaying memory space with a copy of an executable file

(c) wait (iii) To increase or decrease the size of data region

(d) fork (iv) A process synchronizes with termination of child process

code:
a b c d
a. (ii) (iii) (iv) (i)
b. (iii) (ii) (iv) (i)
c. (iv) (iii) (ii) (i)
d. (iv) (iii) (i) (ii)
Discuss
Answer: (a).(ii) (iii) (iv) (i)
13. WOW32 is a :
a. Win 32 API library for creating processes and threads
b. Special kind of file system to the NT name space
c. Kernel - mode objects accessible through Win 32 API
d. Special execution environment used to run 16 bit Windows applications on 32 - bit machines
Discuss
Answer: (d).Special execution environment used to run 16 bit Windows applications on 32 - bit machines
14. The Unix command :

$ vi file1 file2
a. Edits file1 and stores the contents of file1 in file2
b. Both files i.e. file1 and file2 can be edited using 'ex' command to travel between the files
c. Both files can be edited using 'mv' command to move between the files
d. Edits file1 first, saves it and then edits file2
Discuss
Answer: (b).Both files i.e. file1 and file2 can be edited using 'ex' command to travel between the files
15.  _______ maintains the list of free disk blocks in the Unix file system.
a. I-node
b. Boot block
c. Super block
d. File allocation table
Discuss
Answer: (c).Super block
16. A part of Windows 2000 operating system that is not portable is
a. Device Management
b. Virtual Memory Management
c. Processor Management
d. User Interface
Discuss
Answer: (b).Virtual Memory Management
17. Match the following with reference to Unix shell scripts : 

List-I                                                     List-II

a. $?                                 i.  File name of the current script

b. $#                                ii.  List of arguments

c. $0                                 iii. The number of arguments

d. $*                                  iv. Exit status of last command

Codes:
a       b       c       d
a. iii       ii       i       iv
b. ii       iii       i       iv
c. iv       iii       i       ii
d. i       iii       i       iv
Discuss
Answer: (c).iv       iii       i       ii
18. The output generated by the LINUX command :
                     $ seq 1 2 10 
will be
a. 1 2 10
b. 1 2 3 4 5 6 7 8 9 10
c. 1 3 5 7 9
d. 1 5 10
Discuss
Answer: (c).1 3 5 7 9
19. In UNIX, ______________ creates three subdirectories: 'PIS' and two subdirectories 'progs' and data from just created subdirectory 'PIS'.
a. mdkir PIS/progs PIS/data PIS
b. mkdir PIS progs data
c. mkdir PIS PIS/progs PIS/data
d. mkdir PIS/progs data
Discuss
Answer: (c).mkdir PIS PIS/progs PIS/data
20. Which statement is not correct about “init” process in Unix?
a. It is generally the parent of the login shell.
b. It has PID 1.
c. It is the first process in the system.
d. Init forks and execs a ‘getty’ process at every port connected to a terminal.
Discuss
Answer: (c).It is the first process in the system.
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