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  #2  
28th August 2012, 01:19 PM
Super Moderator
 
Join Date: May 2012
Re: JNU MCA Entrance Question Papers

As you required for the JNU MCA Entrance Question Papers here I have attached a pdf file for you which contains the question paper.
Following is the content of the attached:

1 If ∫
θ
π 2 /
sin xdx = sin 2θ, then the value of θ satisfying 0 < θ < π is
1. 3π/2
2. π/2
3. 5π/6
4. π/2
2
Which one of the following operations cannot be overloaded?
1. Subscripting operator
2. Function call operator
3. Membership operator
4. Assignment operator
3
A survey shows that 63% of Indians like banana whereas 76% like apples. If x% of Indians like both banana and apples,
then
1. x = 39
2. x = 63
3. 39 ≤ x ≤63
4. None of these
4
If f(x) = ax + b and g(x) =

For complete xquestion paper please download the following attachment after the registration. This is free for you……
Attached Files
File Type: pdf JNU Sample paper.pdf (212.6 KB, 311 views)
  #3  
4th August 2014, 02:03 PM
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JNU MCA Entrance Question Papers

Will you please provide the JNU MCA Entrance exam Question Paper ?
  #4  
4th August 2014, 03:28 PM
Super Moderator
 
Join Date: Apr 2013
Re: JNU MCA Entrance Question Papers

Here I am providing the list of few questions of JNU MCA Entrance exam Question Paper which you are looking for.

1. The fourth power of 1+ 1+√1+is
(a) 3+2√2 (b) 1+2√3 (c) (1/2) (7+3√5)
(d) √2+√3 2. The last digit of 2199 is
(a) 2
(b) 4
(c) 6
(d) 8
3. If 1!+2!+3!+…+95!=x mod 15, then one possible value of x is
(a) 14
(B) 3
(C) 1
(D) None of these
4. If | −4 |=2, then the greatest of value of | |is
(a) √2 (b) √3 (c) √5 (d) √5+1

5. A simple graph with n vertices must be connected if it has more than
(a) (n – 1)/2 edges
(b) n3/2 edges
(c) ( )( ) edges
(d) n edges
6. Twenty-five members of a new club meet each day for lunch at a round able. They decide to sit such
that every members has different neighbours at each lunch. How many days can this arrangement last?
(a) 25 days
(b) 12 days
(c) 18 days
(d) 13 days
7. The maximum level, 1max, of any vertex in a binary tree is called the height of the tree. The minimum
possible height of an n-vertex binary tree is
(a) log2 n
(b) n – 1
(c) [log2(n+1)-1]
(d) [log2 n]
8. The value of ʃ2 ( ) √ is
(a) √18 (b) √18−√11 (c) 7
(d) None of these
9. If m and n are positive numbers then the limit lim is equal to
x→0
(a) log
3

(b) m – n
(c)
(d) Does not exist
10. The rate at which body changes temperature is proportional to the difference between its
temperature and that of the surrounding medium. This is called Newton’s law of cooling. If y = f
(t) is the unknown temperature of the body at time t and M (t) denotes the known temperature of
the surrounding medium, Newton’s law leads to the differential equation
(a) y’ = ky
(b) y’ = - k [y – M(t)]
(c) y’ = - ky
(d) y’ = -k M(t)
Where k is a positive constant
11. The series ∑ ( )( )converges and has the sum
n=1
(a)
(b)
(c)
(d)
12. If z = (λ+3) + i √5− (λ is a real parameter and i = −1),then the locus of z is
(a) circle
(b) ellipse
(c) parabola
(d) hyperbola


13. If x = 2+ 2+ 2+⋯ ∞,then x equals
(a) – 1
(b) In 2
(c) 2
(d) 2 In 2
14. If Sr (1 ≤r ≤9) denotes the sum to r terms of the series 1+22+333+4444+…+99…….9, then
9 times
9(Sn – Sn – 1) for 2 ≤ ≤9equals
(a) 10n-n2+n
(b) 10n – n2
(c) 10n – 1
(d) n(10n – 1)
15. lim [√ +1−√ −1]=
x→∞
(a) 1
(b) √2 (c) ∞
(d) 0
16. Let Ar denote the number of ways of selecting r objects from n objects with unlimited repetitions.
Then Ar equals
(a)
(b) + −1
(c) nr
(d) rn

17. A car travels from P to Q at 30 kmph and returns from Q to P at 40 kmph by the same
route. Its average speed, in kmph, is nearest to
(a) 32
(b) 33
(c) 34
(d) 35
18. The remainder when 337 divided by 79 is
(a) 1
(b) 2
(c) 13
(d) 35
19. The number of terms in the expansion of [(x+3y)2 (x-3y)2]2 is
(a) 4
(b) 5
(c) 6
(d) 7
20. If x, y, z and w satisfy the equations x+7y+3z+5w = 0
8x+4y+6z+2w = - 16
2x+6y+4z+8w = 16
5x+3y+7z+w = - 16
then (x + w) (y + z) equal
(a) 4
(b) 0
(c) 16
(d) – 16

21. An investor has twenty thousand dollars to invest among 4 possible investments. Each
investment must be in units of a thousand dollars. If the total is to be invested, how many
different investment strategies are possible?
(a) 233 (b) 234 (c) 243 (d) 244 22. An ordinary deck of 52 playing cards is randomly divided into 4 piles of 13 cards each. The
probability that each pile has exactly 1 ace is
(a) 0.105
(b) 0.215
(C) 0.516
(d) 0.001
23. An infinite sequence of independent trials is to be performed. Each trial results in success
with probability p and a failure with probability 1- p. What is the probability that at least one
success occurs in the first n trials?
(a) p(1-p)n-1
(b) (1-p)n
(c) 1-(1-p)n
(d) pn
24. Suppose that the number of typographical errors on a single page of a certain book has
Poisson distribution with parameter = 1/2. In 600 pages book, the average number of errors in
the book is
(a) 300
(b) 150

(c) 600
(d) 393
25. In seven-layer OSI network architecture, the fourth layer corresponds to
(a) data link control layer
(b) session layer
(c) transport layer
(d) presentation layer
26. If in a group G, ɑ5 = e, ɑbɑ -1 = b2 for ɑ, b Є G, then o(b) equals
(a) 5
(b) 7
(c) 29
(d) 31
27. What is the remainder when the sum 15+25+35+…+995+1005 is divided by 4?
(a) 0
(b) 1
(c) 2
(d) 3
28. If g.c.d(I,m)=1, then g.c.d. (In,mn) for every integer n ≥1 is
(a) √ (b) n
(c) n2
(d) 1
29. The coefficient of x2 in the trinomial expansion of (1+x+x2)10 is

(a) 101 (b) 102 (c) 101 + 102 (d) 103 30. Given any five points in the square 12 = {(x, y):0≤x≤1,0≤y≤1}, only one of the following
statements is true. Which one is it?
(a) The five points lie on a circle
(b) At least one square can be formed using four of the five points
(c) At least three of the five points are collinear
(d) There are at least two points such that the distance between them does not exceed √
31. The worst case running time of quick sort is
(a) O (n log2 n)
(b) O (n loge n)
(c) O (n2)
(d) None of these
32. The regular expression (ɑ + b)* ɑb (ɑ + b)*b*ɑ* is equivalent to
(a) (ɑ + b)*ɑ (ɑ + b)*b (ɑ + b)*
(b) (ɑ + b)*ɑb (ɑ + b)*
(c) (ɑ + b)*
(d) None of these

33. You have an application in which a large but fixed table is to be searched very frequently.
The available RAM is adequate to load the table. What would be the best option for storing such
a table?
(a) a sorted array
(b) Binary search tree
(c) Hash table
(d) A heap
34. The number of ways in which three distinct numbers in AP can be selected from 1, 2,…, 24
is
(a) 112
(b) 132
(c) 276
(d) 572
35. If (log5 x)logx 3x)log3x y) =log x x3,then y equals
(a) 25
(b) 125
(c) 5/3
(d) 243
36. The velocity of a car at time t seconds is given by by 3√ m/s, the distance travelled by the
car in 100 seconds is
(a) 1500m
(b) 2000m
(c) 3000m
(d) 3500m
37. If ƒ: R → R, ƒ(x) = 2x+7, then ƒ-1(x) is
(a) 7+2x

(b) 2x – 7
(c) (x – 7)/2
(d) Does not exist
38. A natural number ɑ is said to be related to another natural number b if |a —b| < 4. The relation
is
(a) reflexive and symmetric
(b) reflexive and transitive
(c) symmetric and transitive
(d) None of these
39. Consider the recurrence relation xn = xn – 2 +(n – 2) + (n – 1) with initial condition x1 = 0.
Then xn equals
(a) ( )
(b)
(c) (n – 1)
(d) n(n – 1)
40. In a town of 10,000 families, it was found 40% buy newspaper A, 20% buy
newspaper B and 10% buy newspaper C. Five percent (5%) of the families buy A and B,
3% buy B and C, 4% buy A and C. If 2% buy all the three newspapers, then the number
of families which buy none of the newspapers A, B and C is
(a) 1400
(b) 6000
(c) 3300
(d) 4000
41. There are 20 guests at a party. Two of them do not get along well with each other. In how
many ways can they be seated in a row so that these two persons do not sit next to each other?
(a) 20!

(b) 20! — 2 (19)!
(c) 19!
(d) None of these
42. If X1 and X2 are independent normal random variables with parameters (μ,σ2
1)and
(µ2,σ2
2),respectively then X1 – X2 is normal with mean µ and variance
σ2 such that
(a) µ = µ1 - µ2, σ2 = σ2
1 – σ2
2
(b) μ = μ1+μ2, σ2 = σ2
1+σ2
2
(c) μ = μ1+μ2, σ2 = σ2
1 σ2
2
(d) μ = μ1 - μ2, σ2 = (σ1 – σ2)2
43. Let be a constant. Then var (, X) = k var X, where k equals
(a) 1
(b) 
(c) λ2
(d) None of these
44. The sum of three positive numbers is unity. The maximum value of their product is
(a)
(b)
(c)
(d)
45. The worst case search time using a binary search tree could be
(a) 0(log2 n)
(b) 0(loge n)

(c) 0 (n)
(d) 0 (n2)
46. You have a primitive machine that can perform only addition and multiplication. It requires
the same amount of time for multiplication and addition. Then the minimum number of
computations required to evaluate the expression (ɑx4 + bx3 + cx) is
(a) 6
(b) 7
(c) 10
(d) 12
47. An interrupt is
(a) a program that stops the CPU
(b) a response to an asynchronous or exceptional event
(c) a program that is invoked when a printer is out of paper
(d) an operating system module
48. 111
is
(a) (k –I) (I – m) (m – k) (k + I + m)
(b) k I m(k + I + m)
(c) (k – I) (I – m) (m – k)
(d) (k2 + I2 + m2) (K + I + m)
49. Which of the following is true?
(a) A macro and a subroutine are the same
(b) A macro is a small subroutine
(c) A macro is a program written in an assembly language
(d) None of the above
50. Define
A (0, n) = n + 1 for n ≥0
A (m, 0) = A (m – 1, 1) for m > 0
A (m, n) = A (m – n, A (m, n – 1)) for m > 0, n > 0
Then A (1, 2) =

(a) 3
(b) 4
(c) 5
(d) 8
51. The weighted arithmetic mean of the first n natural numbers whose weights are equal to the
corresponding numbers is given by
(a)
(b)
(c)
(d) ( )( )
52. Tetrahedron is bounded by
(a) 3 planes
(b) 4 planes
(c) 5 planes
(d) 6 planes
53. Given 22 = 2 2 +S, the value of S is
(a) n2
(b) 2n
(c) n+2
(d) ( )
54. The radius of curvature at the origin for the curve x3 + y3 – 2x2 + 6y2 = 0 is
(a)

(b) 2
(c)
(d) 3
55. If A = 1 ɑ 0 1, then A10 equals
(a) 1 10ɑ 0 1 (b) 1 10ɑ 0 10 (c) 1 ɑ 0 1 (d) 1 10ɑ 0 10 56. For what value of x is S = |x – 0.1|+|x – 0.2|+|x – 0.3|+|x – 0.4|+|x – 0.5| minimum?
(a) AM of (0.1, 0.2, 0.3, 0.4, 0.5)
(b) HM of (0.1, 0.2, 0.3, 0.4, 0.5)
(c) GM of (0.1, 0.2, 0.3, 0.4, 0.5)
(d) Median of (0.1, 0.2, 0.3, 0.4, 0.5)
57. The value of∑( )is
k=0
(a) – 4
(b) 4
(c) 0
(d) ∞


58. If each element of a k x k matrix is a Boolean variable, then one can construct Mk number of
different matrices, where Mk equals
(a) 2k
(b) 2k2
(c) k2
(d) 2k
59. Suppose we have two programs, call them P and Q, and that A is the set of all data
values acceptable to P
and B is the set of all data values acceptable to Q. Then A ∆B is
(a) the set of all data acceptable to exactly one of the programs P and Q
(b) the set of all data acceptable to both P and Q
(c) the set of all data acceptable to P but not to Q
(d) the set of all data acceptable to Q but not to P
60. Given that log10 5= 0.70 and log10 3=0.48, the value of log30 8 is
(a) 0.61
(b) 0.72
(c) 0.53
(d) 0.86
61. If the roots of (x – A) (x – B) + (x – B) (x – C) +(x – C) (x – A) = 0 (where A, B, C
are real number) are equal, then
(a) A = B = C
(b) A + B + C = 0
(c) B2 – 4AC = 0

(d) None of these
62. One of the words listed below is my secret word:
AIM, DUE, MOD, OAT, TIE
With this in front of you, if I were to tell you any one of the three letters of my secret word, then
you would be able to tell me the number of vowels in my secret word. Which is my secret word?
(a) MOD
(b) TIE
(c) DUE
(d) OAT
63. N bits in binary are approximately equivalent to
(a) N log2 10 digits in decimal
(b) N log 10 2 digits in decimal
(c) 10 log2 N digits in decimal
(d) 2 log10 N digits in decimal
64. Which weekday was May 26, 1949?
(a) Tuesday
(b) Wednesday
(c) Thursday
(d) Friday
65. tan-1 x+tan-1 y = c is the general solution of the differential equation
(a) =
(b) = (c) (1+x2)dy +(1+y2) dx = 0
(d) (1 – x2)dx +(1 – y2)dy = 0

66. The differential equation y + x = c represents
(a) a family of circles whose centres are on the x-axis
(b) a family of circles whose centres are on the y-axis
(c) a family of parabola as
(d) a family of ellipses
67. The area bounded by y =1+ and the ordinates x = 2 and x = 4 is
(a) 2
(b) 4
(c) 2 log 2
(d) log 5
68. If u = log (x3+y3+z3 – 3xyz), then (x + y + z) + + is equal to
(a) 0
(b) 3
(c) u
(d) – 1
69. If ∫- 1 ƒ(x) dx = 4 and ∫2 [3 – ƒ(x)] dx = 7, then the value of ∫ -1 [ƒ(x)] dx is
(a) 5
(b) 8
(c) – 1
4 4 2

(d) – 2
70. If A > B, then
V [I] = F[I]
else
if B > C then
V[I] = G(I)
Assume that on the average A > B 75 percent of the time and B > C25 percent of the time. If the
program segment is executed 10,000 times, would one expect F and G to be executed?
(a) F: 2500, G: 7500
(b) F: 7500, G: 625
(c) F: 7500, G: 1875
(d) F: 7500, G: 2500
71. The time required to find an item stored in memory can be reduced considerably if stored
date can be identified for access by the content of the data itself rather than by an address. A
memory unit accessed by an address is called.
(a) Associative Memory
(b) Cache Memory
(c) Main Memory
(d) Auxiliary Memory
72. Suppose that a computer has 32 K storage locations. Exactly how many storage locations are
there?
(a) 32000
(b) 3768
(c) 32768
(d) 32700
73. In a bivariate distribution, the lines of regression are 3x + 4y = 1, and x + y = 0 then the
correlation coefficient rxy is

(a)
(b)
(c) -
(d) -
74. Let X, Y, Z be three independent normal variables N (0, 1). Then E [(X —Y —Z) 2]
is
(a) 3
(b) 9
(c) 6
(d) 0
75. The variable that has its scope limited to a function and life-time for the entire
execution of the program is known as
(a) global variable
(b) local variable
(c) static variable
(d) extern variable
76. Given the initial value of x being 11, the value of x after executing the expression (x
= x and 9)?
X [5: x^5? (x = x &6): (x = x|4) will be
(a) 4
(b) 5
(c) 6
(d) 9

77. In C an array consists of 5 elements is the order of index as [10, 34, 18, 24, 30]. A pointer P
initially refers to element 34. The value of x after execution of the expression x = (*P + +) + 25
will be
(a) 60
(b) 59
(c) 33
(d) 27
78. Given the following four statements in C + +
(i) Destructor can be virtual
(ii) Constructor can be virtual
(iii) Destructor is not inherited
(iv) Constructor may not be declared constant Identify the correct combination
(a) i, ii, iii
(b) i, iii, iv
(c) i, ii, iv
(d) ii, iii, iv
79. Let ƒ be a function satisfying ƒ (x y) = ƒ( )for all positive real numbers. If ƒ (500) = 3, then
what is ƒ (600)?
(a) 2.0
(b) 3.6
(c) 2.5
(d) 4.0
80. The probability that a number in {1, 2,…, 1001} is divisible by 7 or 11 or both, is
(a)
(b)
(c)

(d)
81. Let ƒ (x) = + 0+√ +…. If ƒ (ɑ) = 4, then ƒ’ (ɑ) is
(a) 0
(b) 1
(c)
(d)
82. The system of linear equations
kx1+x2+x3+x4 = 0
x1+x2+x3+x4 = 0
x1+x2+kx3+x4 = 0
x1+x2+x3+kx4 = 0
Has solution if and only if
(a) k - 0
(b) k - 30
(c) (k - ) (k - 3) 0
(d) k+0
83. ∫0min (sin x, cos x) dx equals
(a) 1 - √2 (b) 1
(c) 1 - 2√2 (d) 0
84. The projection of the vector i + j + k on to i-2j+3k is given by
(a) √13
π
^ ^^
^ ^ ^ ^

(b) √
(c) 2i-j+4k
(d) √
85. Relative to the ellipse x2
+ y2
+ xy = 7, the point (2, 3) lies
(a) inside
(b) outside
(c) on
(d) Not possible to find without tracing the curve
86. ∫ (ɑ - b-x) dx = ∫ ydx, where y stands for
(a) (-x)
(b) -(x)
(c) (x)
(d) (x)+(-x)
87. The third term of a geometric progression is 3. The product of first five terms is
(a) 143
(b) 27
(c) 243
(d) uncertain
88. The number of solutions to the equation x2-5|x|+6 = 0 is
(a) 2
(b) 4
(c) 6
^ ^ ^
b
ɑ
b
ɑ

(d) None of these
89. Let R be a rectangle. How many circles in the plane of R have a diameter both of whose end
points are vertices of R?
(a)1
(b)2
(c)4
(d)5
90. In a quadrilateral ABCD, it is given that A = 1200, angles B and D are right angles, AB =
13, and AD = 46. Then AC equals
(a) 62
(b) 64
(c) 65
(d) 72
91. The degree to which data in a database system are accurate and correct is referred to as
(a) data independence
(b) data security
(c) data Privacy
(d) data integrity
92. If |ɑ| = 2, |b| = 3, |c| = 4 and ɑ + b + c = 0, then the value of ɑ. b+ b. ɑ + c. ɑ is
(a) – 25
(b)
(c) -
(d) -
93. The value of tan 10 tan 20 tan 30…tan 890 is

(a) 0
(b) 1
(c) 
(d) 
94. If sin A + sin B = p and cos A + cos B = q, then cos (A + B) equal
(a) p2 + q2
(b)
(c)
(d)
95. If |z + 4|≤3, then |z+1|
(a) ≤4
(b) ≤5
(c) ≤6
(d) N0one of these
96. The slope of the normal at the point (ɑt2, 2at) of the parabola y2
= 4ax is
(a) log t
(b) – t
(c) t
(d) – ɑt
97. Frame relay networks were developed to add more features that X. 25 was not able to
provide. Select the correct option.
(a) Connection-oriented, variable-bit rate real-time applications.
(b) Connection-oriented, constant-bit rate real-time applications
(c) Higher data rate at lower cost than X.25, reduced control overheads and bandwidth on

demand
(d) All of the above
98. Two stations (located at a distance of 1 km) in a point to point network transmit the frames of
size 100 bits at a data rate of 1 Mbps. The utilization of the channel for network is
(a) 98%
(b) 95%
(c) 93%
(d) 90%
when signal travels at a velocity of 2 x 108 m/s.
99. For an interactive system ills more important to
(a) minimize variance in response time
(b) minimize average response time
(c) minimize throughput
(d) minimize average response time and throughput
100. For what value of k does 4x2 + 8xy + ky2= 9 represent a pair of straight lines?
(a) 4
(b) 8
(c) – 4
(d) 0
101. A bomb moving with velocity 10i + 2j explodes into two fragments. The smaller fragment with mass
M files with velocity 20i + 50j. The velocity of the larger fragment with mass 3M is
(a) 20i
(b) 20i – 42j
(c) ( )
(d) 60i + 150j
^ ^
^ ^
^ ^
^
^ ^
^ ^

102. Let X = {1, 2, 3,…, 10} and P = {1, 2, 3, 4, 5}. The number of subsets Q of X such that
P∆Q = {3} is
(a) 24 – 1
(b) 24
(c) 25
(d) 1
103. Let n be any integer. Then n (n+1) (2n+1)
(a) is a perfect square
(b) is an integer multiple of 6
(c) is an odd number
(d) None of these
104. The diagonal of the square PQRS is (ɑ + b). The perimeter of a square with twice the area
of PQRS is
(a) 4 (ɑ + b)
(b) √8(ɑ + b)
(c) 2 (ɑ + b)
(d) 8ɑb
105. The maximum distance between two points of a unit cube is
(a) √3 (b) √2+√3 (c) √2+ 1
(d) 3
106. Using LRU replacement algorithm with 3 frames, the number of page faults
that occur for the following reference string 1, 2, 3, 4, 2, 1, 5, 6, 2,

1, 2, 3, 7, 6, 3, 2, 1, 2, 3, 6 is
(a) 12
(b) 15
(c) 18
(d) 20
107. To prevent deadlock which of the following cannot be disallowed?
(a) Mutual exclusion
(b) Hold and wait
(c) No preemption
(d) Circular wait
108. The speedup ratio of a pipeline processing over an equivalent nonpipeline
processing that uses 4 segments (each segment takes 20 ns for computation
of a task) is
(a) 3.00
(b) 3.88
(c) 3.05
(d) 3.98
109. If w is arbitrary and r x w = 0, then
(a) r = kw for some k > 0
(b) r = kw for some k < 0
(c) r = 0
(d) None of these
110. Which of the following is not an assumption of the binomial distribution?
(a) All trials must be identical
(b) All trials must be independent

(c) Each trial must be classified as success or failure
(d) The probability of success is 0.5 in all trials
111. If x, y, z are in R3 and linearly independent, which of the following is false?
(a) {x, y, z} forms a bases of R3
(b) x, x + y, x + y + z are linearly dependent
(c)∑j x j, j Є R is their linear span
(d) x and y are linearly independent
112. Which of the following is true for any real x?
(a) cos (sin x) ≥sin (cos x)
(b) cos (sin x) ≤sin (cos x)
(c) cos (sin x) = - sin (cos x)
(d) None of the above
113.Which of the following is true about a linear programming problem?
(a) If two distinct bases correspond to the same basic feasible solution x, then x is degenerate
(b) If there is an optimal solution at the vertex, then there is also a solution in the interior
(c) Optimal solution is unique
(d) There may exist feasible solutions, but not a basic feasible solution
114. k = 0
For i1 = 1 to 10
For i2 = 1 to i1
For i3 = 1 to i2
k = k+1
print k
What would be the value of k after the above program segment is executed?
J = 1
3

(a) 120
(b) 398
(c) 220
(d) 1000
115. The value of lim ∫ is
(a) 0
(b) ∞
(c) 1
(d)
116. Let , , be three mutually perpendicular vectors of the magnitude. If a vector satisfies
the equation
(( - ) + (( - )) + (( - )) = 0 then , in terms of , and , is
(a) + + 
(b) ( + + )
(c) ( ) + ( ) + ( ) 
(d) ( )
117. If (x) = (10 – x10)1/10, then [(x)] is
(a) x10
(b) x
(c) x20
(d) None of these
x→0

118. cos 200 cos 400 cos 600 cos 800 equals
(a)
(b)
(c)
(d)
119. If ɑx = bc, by = ɑc, cz = ɑb, then + + equals
(a) 1
(b) 3
(c) 0
(d)(ɑ + b + c)
120. If √3+ 1 is a root pf the equation 3x3 +ɑx2+bx+12 = 0, where ɑ and b are rational numbers,
then b equals
(a) – 12
(b) 6
(c) 5
(d) 2


For more questions , here is the attachment
Attached Files
File Type: pdf JNU MCA Entrance Question Paper.pdf (568.0 KB, 82 views)
  #5  
29th November 2014, 08:08 AM
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JNU MCA Entrance Question Papers

I am searching for the JNU MCA Entrance Question Papers? Can you please tell me from where I can download the JNU MCA Entrance Question Papers?
  #6  
29th November 2014, 09:53 AM
Super Moderator
 
Join Date: Apr 2013
Re: JNU MCA Entrance Question Papers

The JNU offers admission in MCA on the bases of the score in the Entrance test. You are asking for the JNU MCA Entrance Question Papers. Here I am providing you the JNU MCA Entrance Question Papers. These are as follows:

You are allowed to use 20 nodes to construct an AVL-tree (height balanced tree). What is its possible maximum height?
(a) 4

(b) 5

(c) 6

(d) 7

The half-life of a radioactive substance is the time required for one-half of the substance to decay. The amount of 11C, an isotope of carbon present at a future time t (in months) is given by A (t) = 100 exp [- 0.0338 t]. The half-life of the material in months is

(a) In 2

(b) 0.0338

(c)

(d) 2 In 2

A file of size n= 100 takes 6 ms for sorting using Quicksort algorithm. Then approximately how much time would it take to sort a file of size n= 100000000?
(a) 24000000 ms
(b) 24 ms
(c) 240000 ms
(d) 18000000 ms

Solve z5 = 1, for z
(a) z = e2π/m, n = 0, 1, 2,…..
(b) z = e2πin/5, n = 0, 1, 2,…..
(c) z = eπin/5, n = 0, 1, 2,…..
(d) z = e5πin, n = 0, 1, 2,…..

The straight line 7x — 2y + 10 = 0, 7x + 2y -10 = 0 and y + 2 = 0 form

(a) obtuse-angled triangle

(b) acute-angled triangle

(c) right-angled triangle

(d) isosceles triangle

Assume that an upper triangular matrix a [0. .99, 0. .99] is stored in a linear array h [0. .5049] in lexicographical (row by row) order. if a [0, 0] is stored in h [0], where is a [80, 90] stored in the array h ?
(a) 4851

(b) 4850

(c) 3330

(d) 4175

Consider the following C function:
unsigned try (unsigned x, int p, int n)

{
return (x>>(p – 1 – n )) and – (- 0<<n);
}
What would be the output of try (x, 8, 5) for x = 1110111011101110?

(a) 10111

(b) 11101

(c) 01110

(d) 11011

An observer at an anti-aircraft post A identifies an enemy aircraft due east of his post at an angle of elevation of 600. Ast the same instant a detection post D situated 4 km south of A reports the aircraft at an elevation of 30°. The altitude at which the plane is flying is
(a) 4

(b) 2/ km

(c)

(d) 6 km

A Winchester-style disc has its head currently located at track 64. Given the reference string (88, 90, 8, 11, 10, 4) representing the (ordered) Sequence of requests for disc tracks, the total number of tracks traversed by the disc under the SSFT is
(a) 108

(b) 138

(c) 139

(d) 109

Let ƒ, g : R →R+ defined by f(x) = 2x + 3 and g(x) = x2. The value of (go f) (x) is
(a) 2x2 + 3

(b) 2x + 3

(c) (2x + 3)2

(d) 4x2 + 9

Here I am also uploading a file that contains the complete Question Papers JNU MCA Entrance exam. You can download it from here. This is as follows:






Attached Files
File Type: pdf JNU MCA Entrance exam Question Papers-1.pdf (568.0 KB, 65 views)
File Type: pdf JNU MCA Entrance exam Question Papers.pdf (794.0 KB, 110 views)


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