January, 2013 A8-R4: BASICS OF OS, UNIX AND SHELL PROGRAMMING

January, 2013

A8-R4: BASICS OF OS, UNIX AND SHELL PROGRAMMING

PART ONE

(Answer all the questions)

1. Each question below gives a multiple choice of answers. Choose the most appropriate one and enter in the “tear-off” answer sheet attached to the question paper, following instructions therein. (1x10)

1.1 How to switch from text mode to GUI mode in linux?
A) <Ctrl><Tab>F7
B) <Ctrl><Shift>F7
C) <Shift><Tab>F7
D) <Ctrl><Alt>F7
1.2 Which one of the following gives Process ID in UNIX?
A) pid
B) showpid
C) ps
D) none of the above

July, 2013 A8-R4: BASICS OF OS, UNIX AND SHELL PROGRAMMING

July, 2013

A8-R4: BASICS OF OS, UNIX AND SHELL PROGRAMMING

PART ONE

(Answer all the questions)

1. Each question below gives a multiple choice of answers. Choose the most appropriate one and enter in the “OMR” answer sheet supplied with the question paper, following instructions therein. (1x10)

1.1 Which Linux command is used to assign privileges over a particular file to a designated user?
A) chroot
B) chown
C) assign
D) chgrp
1.2 According to the Linux filesystem hierarchy standard, which of the following directories would be
an appropriate location for a user to install a shared application to?
A) /sbin
B) /dev/user/bin
C) /usr/local/bin
D) /etc/bin

UGC Net Computer Science Paper 3 July-16 Page 8

71. Which of the following is characteristic of an MIS ?
(1) Provides guidance in identifying problems, finding and evaluating alternative
solutions, and selecting or comparing alternatives.
(2) Draws on diverse yet predictable data resources to aggregate and summarize data.
(3) High volume, data capture focus.
(4) Has as its goal the efficiency of data movement and processing and interfacing
different TPS.


72. How does randomized hill-climbing choose the next move each time ?
(1) It generates a random move from the moveset, and accepts this move.
(2) It generates a random move from the whole state space, and accepts this move.
(3) It generates a random move from the moveset, and accepts this move only if this
move improves the evaluation function.
(4) It generates a random move from the whole state space, and accepts this move only
if this move improves the evaluation function.

UGC Net Computer Science Paper 3 July-16 Page 7

61. The region of feasible solution of a linear programming problem has a _____ property in
geometry, provided the feasible solution of the problem exists.
(1) concavity
 (2) convexity
(3) quadratic
 (4) polyhedron

62. Consider the following statements :
(a) Revised simplex method requires lesser computations than the simplex method.
(b) Revised simplex method automatically generates the inverse of the current basis
matrix.
(c) Less number of entries are needed in each table of revised simplex method than
usual simplex method.
Which of these statements are correct ?
(1) (a) and (b) only
 (2) (a) and (c) only
(3) (b) and (c) only
(4) (a), (b) and (c)