DOEACC Society 2007 DOEACC A Level A8-R3 Basic of OS, Unix & Shell Programming - Question Paper

A8-R3: BASICS OF OS, UNIX AND SHELL PROGRAMMING
NOTE:
1. There are 2 PARTS in this Module/Paper. PART 1 contains 4 ques.
and PART 2 contains 5 ques..
2. PART 1 is to be answered in the TEAR-OFF ans SHEET only, attached to
the ques. paper, as per the instructions contained therein. PART 1 is NOT to
be answered in the ans book.
3. Maximum time allotted for PART 1 is 1 HOUR. ans book for PART TWO
will be supplied at the table when the ans sheet for PART 1 is returned.
However, candidates, who complete PART 1 earlier than 1 hour, can collect the
ans book for PART 2 immediately after handing over the ans sheet for
PART ONE.
TOTAL TIME: three HOURS TOTAL MARKS: 100
(PART 1 – 40; PART 2 – 60)
PART ONE
(Answer all the questions)
1. every ques. beneath provide a multiple option of answers. select the most
improper 1 and enter in the “tear-off” ans sheet attached to the ques.
paper, subsequent instructions therein. (1 x 10)
1.1 Memory management scheme in which entire process is transferred ranging from primary
memory and secondary memory device (meant for it) is called
A) demand paging
B) segmented
C) swapping
D) None of the above
1.2 The current directory is current. The relative path name of the file exclusive in the
subsequent directory structure is …
/ (root)
|
-----------------------------------------------------------------------
| | …
one two
| |
---------------- ---------------------
| | | ….
Past current exclusive
A) ../two/exclusive
B) ../../two/exclusive
C) /two/exclusive
D) None of the above
A8-R3 Page one of six January, 2007
1.3 The shell in which environment/built-in-variables are often featured both in lower case
and upper case is
A) C shell
B) Bourn shell
C) Korn shell / BASH shell
D) None of the above
1.4 Remote login is offered with out UNIX machine at other end by
A) rlogin
B) telnet
C) ftp
D) None of the above
1.5 Multiple trend for search can be provided in
A) grep
B) egrep
C) in both – grep & egrep
D) None of the above
1.6 start and END parts of awk are used to
A) enclose the program
B) enclose the trend
C) do pre and post processing work
D) None of the above
1.7 To run a UNIX program in ‘C’ program and resume ‘C’ program processing, we may use
the function
A) exec
B) execl()
C) system()
D) None of the above
1.8 To maintain the state of file and user’s access to it, we may use
A) user file descriptor table
B) file table
C) inode table
D) All of the above
1.9 In mount command, the 1st operand and 2nd operand are

Earning:   Approval pending.