36. Which
of the following is/are correct with reference to Abstract class and interface
?
(a) A class
can inherit only one Abstract class but may inherit several interfaces.
(b) An
Abstract class can provide complete and default code but an interface has no
code.
Codes :
(A) (a) is
true (B) (b) is true
(C) Both (a)
and (b) are true (D) Neither (a) nor (b)
is true
Answer:
C
37. Match
the following with respect to various memory management algorithms :
List
- I List
- II
(a) Demand
paging (i) degree of
multiprogramming
(b)
Segmentation (ii)
working set
(c) Dynamic
partitions (iii) supports user
view of memory
(d) Fixed
partitions (iv)
compaction
Codes :
(a) (b) (c)
(d)
(A) (iii) (iv) (ii)
(i)
(B) (ii) (iii) (i)
(iv)
(C) (iv)
(iii) (ii) (i)
(D) (ii) (iii) (iv)
(i)
Answer:
D
38. Function
of memory management unit is :
(A) Address
translation (B) Memory
allocation
(C) Cache
management (D) All of the above
Answer:
A
39. Consider
a system with twelve magnetic tape drives and three processes P1, P2
and P3. Process P1 requires maximum ten tape drives,
process P2 may need as many as four tape drives and P3
may need upto nine tape drives. Suppose that at time t1, process
P1 is holding five tape drives, process P2 is holding two
tape drives and process P3 is holding three tape drives. At time t1,
system is in:
(A) safe
state (B) unsafe state
(C)
deadlocked state (D) starvation state
Answer:
B
40. In
Unix operating system, special files are used to :
(A) buffer
data received in its input from where a process reads
(B) provide
a mechanism to map physical device to file names
(C) store
list of file names plus pointers associated with i-nodes
(D) store
information entered by a user application program or utility program
Answer:
B
41. Match
the following in Unix file system :
List
- I List - II
(a) Boot
block (i) Information about
file system
(b) Super
block (ii) Information about
file
(c) Inode
table (iii) Storage space
(d) Data
block (iv) Code for making
OS ready
Codes :
(a) (b) (c)
(d)
(A) (iv) (i) (ii)
(iii)
(B) (i) (iii) (ii) (iv)
(C) (iii) (i) (ii)
(iv)
(D) (iv) (ii) (i)
(iii)
Answer:
A
42. In
an operating system, indivisibility of operation means :
(A)
Operation is interruptable
(B) Race -
condition may occur
(C)
Processor can not be pre-empted
(D) All of
the above
Answer:
C
43. A
horn clause is ......................
(A) A clause
in which no variables occur in the expression
(B) A clause
that has at least one negative literal
(C) A
disjunction of a number of literals
(D) A clause
that has at most one positive literal
Answer:
D
44. In
Propositional Logic, given P and P→Q, we can infer .................
(A) ~Q (B) Q
(C) P∧Q (D)
~P∧Q
Answer:
B
45. Reasoning
strategies used in expert systems include ...............
(A) Forward
chaining, backward chaining and problem reduction
(B) Forward
chaining, backward chaining and boundary mutation
(C) Forward
chaining, backward chaining and back propagation
(D) Backward
chaining, problem reduction and boundary mutation
Answer:
A
46. Language
model used in LISP is .................
(A)
Functional programming (B)
Logic programming
(C) Object
oriented programming (D) All of the
above
Answer:
A
47. In
constraint satisfaction problem, constraints can be stated as
...................
(A)
Arithmatic equations and inequalities that bind the values of variables
(B)
Arithmatic equations and inequalities that doesn’t bind any restriction over
variables
(C)
Arithmatic equations that impose restrictions over variables
(D)
Arithmatic equations that discard constraints over the given variables
Answer:
A
48. As
compared to rental and leasing methods to acquire computer systems for a
Management Information System (MIS), purchase method has following advantage :
(A) It has
high level of flexibility
(B) It
doesn’t require cash up-front
(C) It is a
business investment
(D) Little
risk of obsolescence
Answer:
C
49. Consider
the conditional entropy and mutual information for the binary symmetric
channel. The input source has alphabet X={0,1} and associated probabilities {1/2,1/2}.
The channel matrix is
where p is
the transition probability. Then the conditional entropy is given by :
(A) 1 (B) -plog(p)-(1-p)log(1-p)
(C) 1+plog(p)+(1-p)log(1-p)
(D) 0
Answer:
B
50. Which
of the following is not a lossy compression technique ?
(A) JPEG (B) MPEG
(C) FFT (D) Arithmetic coding
Answer:
D
51. Blind
image deconvolution is ................
(A)
Combination of blur identification and image restoration
(B)
Combination of segmentation and classification
(C)
Combination of blur and non-blur image
(D) None of
the above
Answer:
A
52. A
basic feasible solution of a linear programming problem is said to be ...............
if at least one of the basic variable is zero.
(A)
degenerate (B) non-degenerate
(C)
infeasible (D) unbounded
Answer:
A
53. Consider
the following conditions :
(a) The
solution must be feasible, i.e. it must satisfy all the supply and demand constraints.
(b) The
number of positive allocations must be equal to m+n-1, where m is the number
of rows and
n is the number of columns.
(c) All the
positive allocations must be in independent positions.
The initial
solution of a transportation problem is said to be non-degenerate basic feasible
solution if it satisfies :
Codes :
(A) (a) and
(b) only (B) (a) and (c) only
(C) (b) and
(c) only (D) (a), (b) and (c)
Answer:
D
54. Consider
the following transportation problem :
The
transportation cost in the initial basic feasible solution of the above
transportation problem using Vogel’s Approximation method is :
(A) 1450 (B) 1465
(C) 1480 (D) 1520
Answer:
B
55. The
character set used in Windows 2000 operating system is ...............
(A) 8 bit
ASCII (B) Extended ASCII
(C) 16 bit
UNICODE (D) 12 bit UNICODE
Answer:
C
56. In
Unix, the command to enable execution permission for file “mylife” by all is
................
(A) Chmod
ugo+X myfile (B) Chmod a+X myfile
(C) Chmod +X
myfile (D) All of the above
Answer:
D
57. What
will be the output of the following Unix command ?
$rm chap0\[1
- 3\]
(A) Remove
file chap0[1 - 3]
(B) Remove
file chap01, chap02, chap03
(C) Remove
file chap\[1 - 3\]
(D) None of the
above
Answer:
A
58. Which
of the following statements regarding the features of the object-oriented
approach to databases are true ?
(a) The
ability to develop more realistic models of the real world.
(b) The
ability to represent the world in a non-geometric way.
(c) The
ability to develop databases using natural language approaches.
(d) The need
to split objects into their component parts.
(e) The
ability to develop database models based on location rather than state and
behaviour.
Codes :
(A) (a), (b)
and (c) (B) (b), (c) and (d)
(C) (a), (d)
and (e) (D) (c), (d) and (e)
Answer:
A
59. Consider
the following database table :
Create table
test(
one integer,
two integer,
primary
key(one),
unique(two),
check(one≥1
and ≤10),
check(two≥1
and ≤5) );
How many data records/tuples atmost can this
table contain ?
(A) 5 (B)
10
(C) 15 (D)
50
Answer: A
60. Suppose
ORACLE relation R(A, B) currently has tuples {(1, 2), (1, 3), (3, 4)} and
relation S(B, C) currently has {(2, 5), (4, 6), (7, 8)}. Consider the following
two SQL queries SQ1 and SQ2 :
SQ1 : Select
*
From
R Full Join S
On
R.B=S.B;
SQ2 : Select *
From R Inner Join S
On R.B=S.B;
The numbers of tuples in the result of the
SQL query SQ1 and the SQL query SQ2 are given by :
(A) 2 and 6 respectively (B) 6 and 2 respectively
(C) 2 and 4 respectively (D) 4 and 2 respectively
Answer: D
61. Consider
the following three SQL queries (Assume the data in the people table) :
(a) Select
Name from people where Age>21;
(b) Select
Name from people where Height>180;
(c) Select
Name from people where (Age>21) or (Height>180);
If the SQL
queries (a) and (b) above, return 10 rows and 7 rows in the result set
respectively, then what is one possible number of rows returned by the SQL
query (c) ? (A) 3 (B) 7
(C) 10 (D) 21
Answer:
C
62. The
distributed system is a collection of (P) and communication is achieved in
distributed system by (Q) , where (P) and (Q) are :
(A) Loosely
coupled hardware on tightly coupled software and disk sharing, respectively.
(B) Tightly
coupled hardware on loosely coupled software and shared memory, respectively.
(C) Tightly
coupled software on loosely coupled hardware and message passing,
respectively.
(D) Loosely
coupled software on tightly coupled hardware and file sharing, respectively.
Answer:
C
63. Consider
the following three tables R, S and T. In this question, all the join
operations are natural joins (⨝).
(π) is the projection operation of a relation :
Possible
answer tables for this question are also given as below :
What is the
resulting table of πA,B(R⨝T) ⨝ πB,C(S⨝T) ?
(A) (a) (B) (b)
(C) (c) (D) (d)
Answer:
A
64. Consider
the two class classification task that consists of the following points :
Class C1:
[-1, -1], [-1, 1], [1, -1]
Class C2:
[1, 1]
The decision
boundary between the two classes C1 and C2 using single
perceptron is given by :
(A) x1-x2-0.5=0
(B) -x1+x2-0.5=0
(C) 0.5(x1+x2)-1.5=0
(D) x1+x2-0.5=0
Answer:
D
65. Consider
a standard additive model consisting of rules of the form of
If x is Ai
AND y is Bi THEN z is Ci.
Given crisp
inputs x=x0, y=y0, the output of the model is :
Answer:
C
66. A
bell-shaped membership function is specified by three parameters (a, b, c) as
follows:
Answer:
B
67. Which
of the following is/are the principle components of a memory-tube display ?
(a) Flooding
gun (b) Collector
(c)
Phosphorus grains (d) Ground
Codes :
(A) (a) and
(b) (B) (c) only
(C) (d) only
(D) All the above
Answer:
D
68. Which
of the following steps is/are not required for analog to digital conversion ?
(a) Sensing (b)
Conversion (c) Amplification
(d)
Conditioning (e) Quantization
Codes :
(A) (a) and
(b) (B) (c) and (d)
(C) (a), (b)
and (e) (D) None of the above
Answer:B
69. Which
raster locations would be chosen by Bresenham’s algorithm when scan converting
a line from (1, 1) to (8, 5) ?
Answer:
C
70. Consider
a unit square centred at origin. The coordinates of the square are translated
by a factor (1/2, 1) and rotated by an angle of 90o. What shall be
the coordinates of the new
square ?
(A) (-1/2, 0),
(-1/2, 1), (-3/2, 1), (-3/2, 0)
(B) (-1/2, 0),
(1/2, 1), (3/2, 1), (3/2, 0)
(C) (-1/2, 0),
(1/2, 0), (-3/2, 1), (-3/2, 0)
(D) (-1/2, 0),
(1/2, 1), (-3/2, 1), (-3/2, 0)
Answer:
A
71. Which
of the following is/are the components of a CRT ?
(a) Electron
Gun
(b) Control
Electrode
(c) Focusing
Electrode
(d) Phosphor
Coated Screen
Codes :
(A) (a) and
(d) (B) (a), (b) and (d)
(C) (a),
(b), (c) and (d) (D) (a), (c)
and (d)
Answer:
C
72. Which
one of the following statements is incorrect ?
(A) Pareto
analysis is a statistical method used for analyzing causes, and is one of the
primary tools for quality management.
(B) Reliability of a software specifies the probability
of failure-free operation of that software for a given time duration.
(C) The reliability of a system can also be
specified as the Mean Time To Failure (MTTF).
(D) In white-box testing, the test cases are
decided from the specifications or the
requirements.
Answer:
D
73. Consider
a language A defined over the alphabet ∑={0, 1} as A = {0[n/2] 1n:
n >= 0} .
The
expression [n/2] means the floor of n/2, or what you get by rounding n/2 down
to the nearest integer.
Which of the
following is not an example of a string in A ?
(A) 011 (B) 0111
(C) 0011 (D) 001111
Answer: C
74. Which
one of the following statements, related to the requirements phase in Software
Engineering,
is incorrect ?
(A)
“Requirement validation” is one of the activities in the requirements phase.
(B)
“Prototyping” is one of the methods for requirement analysis.
(C)
“Modelling-oriented approach” is one of the methods for specifying the
functional
specifications.
(D)
“Function points” is one of the most commonly used size metric for
requirements.
Answer:
C
75. ...............
tag is an extension to HTML that can enclose any number of Javascript
statements.
(A)
<SCRIPT> (B)
<BODY>
(C)
<HEAD> (D) <TITLE>
Answer: A
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