Recent questions and answers in Others

+2 votes

3 answers

1

ISRO2011-64
When n-type semiconductor is heated? number of electrons increases while that of holes decreases number of holes increases while that of electrons decreases number of electrons and holes remain the same number of electron and holes increases equally

answered Jan 7 in Others by midhunraj (53 points) | 1.8k views

+2 votes

2 answers

2

ISRO2018-75
ln neural network, the network capacity is defined as: The traffic (tarry capacity of the network The total number of nodes in the network The number of patterns that can be stored and recalled in a network None of the above

answered Jan 3 in Others by `JEET Boss (18.8k points) | 739 views

0 votes

2 answers

3

UGCNET-DEC2018-II-66
Which of the following statement/s is/are true? Firewalls can screen traffic going into or out of an organization. Virtual private networks can stimulate an old leased network to provide certain desirable properties. Choose the correct answer from the code given below: Code: (i) only (ii) only Both (i) and (ii) Neither (i) nor (ii)

answered Dec 28, 2019 in Others by `JEET Boss (18.8k points) | 167 views

0 votes

3 answers

4

UGCNET-DEC2018-II-93
Consider the following terminology and match List I with List II and choose the correct answer from the code given below. b= branching factor d = depth of the shallowest solution m= maximum depth of the search tree l=depth limit ... )-(ii), (c)-(iv), (d)-(i) (a) - (i), (b)-(iii), (c)-(iv), (d)-(ii)

answered Dec 28, 2019 in Others by Aakashkumarvishwa (15 points) | 116 views

+2 votes

1 answer

5

$\textbf{NTA NET DC 2019}$
The following multithreaded algorithm computes transpose of a matrix in parallel : $\mathrm P$ Trans $\mathrm{(X,Y,N)}$ if $\mathrm {N=1}$ then $\mathrm {Y[1,1] \leftarrow X[1,1]}$ else partition $\mathrm X$ into four $\mathrm {(N/2) \times (N/2)}$ ... $ \mathrm{4) T_1/ T_\infty \; or \; \theta (\lg N/N)}$

answered Dec 28, 2019 in Others by `JEET Boss (18.8k points) | 41 views

0 votes

0 answers

6

NTA NET DEC 2019 (Genetic algorithm)
Let the population of chromosomes in genetic algorithm is represented in terms of binary number. The strength of fitness of a chromosome in decimal form x, is given by S f(x) = f(x) where f(x) = x2 Σf(x) The population is given by P Where : P = ... 11000),(01000),(10011)} The strength of fitness of chromosomes (11000) is ___________ 1) 24 2) 576 3) 14.4 4) 49.2

asked Dec 22, 2019 in Others by Sanjay Sharma Boss (49.3k points) | 61 views

+2 votes

2 answers

7

ISRO2018-79
A doubly linked list is declared as: struct Node { int Value; struct Node *Fwd; struct Node *Bwd; }; Where Fwd and Bwd represent forward and backward link to the adjacent elements of the list. Which of the following segment of code deletes the node pointed to by ... Bwd = X.Bwd; X$\rightarrow$Bwd$\rightarrow$Fwd = X$\rightarrow$Bwd; X$\rightarrow$Fwd$\rightarrow$Bwd = X$\rightarrow$Fwd;

answered Dec 16, 2019 in Others by Sarang (27 points) | 880 views

+1 vote

1 answer

8

UGCNET-June-2019-II-95
Let $A_{\alpha_0}$ denotes the $\alpha$-cut of a fuzzy set $A$ at $\alpha_0$. If $\alpha_1 < \alpha_2$, then $A_{\alpha_1} \supseteq A_{\alpha_2}$ $A_{\alpha_1} \supset A_{\alpha_2}$ $A_{\alpha_1} \subseteq A_{\alpha_2}$ $A_{\alpha_1} \subset A_{\alpha_2}$

answered Dec 3, 2019 in Others by Anshu Kesarwani (57 points) | 86 views

0 votes

1 answer

9

UGCNET-DEC2018-II-94
Consider the following terminology and match List I with List II and choose the correct answer from the code given below. List I List II (a) Greedy Best-First Search (i) Selects a node for expansion if optimal path to that node has been found (b) A* Search (ii) Avoids substantial overhead associated with ... -(iii), (c)-(ii), (d)-(i) (a) - (i), (b)-(iv), (c)-(iii), (d)-(ii)

answered Nov 28, 2019 in Others by Rashmi Ashutosh Vish (71 points) | 76 views

+1 vote

2 answers

10

UGCNET-June-2019-II-97
Consider the following: Evolution Selection Reproduction Mutation Which of the following are found in genetic algorithms? b, c and d only b and d only a, b, c and d a, b and d only

answered Nov 28, 2019 in Others by Rashmi Ashutosh Vish (71 points) | 142 views

0 votes

2 answers

11

UGCNET-DEC2018-II-90
Suppose that everyone in a group of $N$ people wants to communicate secretly with $(N-1)$ other people using symmetric key cryptographic system. The communication between any two persons should not be decodable by the others in the group. The number of keys required in the system as a whole to satisfy the confidentiality requirement is $N(N-1)$ $N(N-1)/2$ $2N$ $(N-1)^2$

answered Nov 27, 2019 in Others by deenanathgupta (103 points) | 78 views

0 votes

1 answer

12

UGCNET-DEC2018-II-91
An agent can improve its performance by Perceiving Responding Learning Observing

answered Nov 27, 2019 in Others by deenanathgupta (103 points) | 81 views

0 votes

2 answers

13

UGCNET-DEC2018-II-92
Which of the following is true for semi-dynamic environment? The environment may change while the agent is deliberating The environment itself does not change with the passage of time but the agent's performance score does Even if the ... the passage of time while deliberating, the performance score does not change. Environment and performance score, both change simultaneously

answered Nov 27, 2019 in Others by deenanathgupta (103 points) | 116 views

0 votes

1 answer

14

UGCNET-DEC2018-II-96
Consider the following statements related to AND-OR Search algorithm. S1: A solution is a subtree that has a goal node at every leaf. S2: OR nodes are analogous to the branching in a non-deterministic environment. S3: AND nodes are analogous to the branching in a non-deterministic ... S2 - True, S3 - False S1 - True, S2 - True, S3 - True S1 - False, S2 - True, S3 - False

answered Nov 27, 2019 in Others by deenanathgupta (103 points) | 72 views

0 votes

1 answer

15

UGCNET-DEC2018-II-95
Consider the following statements: S1: A heuristic is admissible if it never overestimates the cost to reach the goal S2: A heuristic is monotonous if it follows triangle inequality property Which of the following is true referencing the above statements? Choose ... but statement S2 is true Statement S1 is true but statement S2 is false Both the statements S1 and S2 are true

answered Nov 27, 2019 in Others by deenanathgupta (103 points) | 73 views

0 votes

2 answers

16

UGCNET-DEC2018-II-99
Consider the sentence below: There is a country that borders both India and Nepal Which of the following represents the above sentence correctly? $\exists c \text{ Country} (c ) \wedge \text{Border}(c, \text{India}) \wedge Border(c, \text{Nepal})$ ... $\exists c \text{ Border}( \text{Country} (c ), \text{India}) \wedge \text{Nepal})$

answered Nov 27, 2019 in Others by deenanathgupta (103 points) | 194 views

+2 votes

2 answers

17

ISI2015-MMA-50
Let ... $V_3<V_2<V_1$ $V_3<V_1<V_2$ $V_1<V_2<V_3$ $V_2<V_3<V_1$

answered Nov 25, 2019 in Others by techbd123 Active (3.5k points) | 28 views

+1 vote

1 answer

18

UGCNET-June-2019-II-94
A fuzzy conjunction operator denoted as $t(x,y)$ and a fuzzy disjunction operator denoted as $s(x,y)$ form a dual pair if they satisfy the condition: $t(x,y) = 1-s(x,y)$ $t(x,y) = s(1-x,1-y)$ $t(x,y) = 1-s(1-x,1-y)$ $t(x,y) = s(1+x,1+y)$

answered Nov 15, 2019 in Others by hashida (11 points) | 137 views

0 votes

1 answer

19

UGCNET-July-2018-II-81
E is the number of edges in the graph and f is maximum flow in the graph. When the capacities are integers, the runtime of Ford-Fulberson algorithm is bounded by $O \: (E*f)$ $O \: (E^2*f)$ $O \: (E*f^2)$ $O \: (E^2*f^2)$

answered Nov 14, 2019 in Others by Anshu Kesarwani (57 points) | 346 views

0 votes

2 answers

20

UGCNET-July-2018-II-83
The following LLP $\text{Maximize } z=100x_1 +2x_2+5x_3$ Subject to $14x_1+x_2-6x_33+3x_4=7$ $32x_1+x_2-12x_3 \leq 10$ $3x_1-x_2-x_3 \leq 0$ $x_1, x_2, x_3, x_4 \geq 0$ has Solution : $x_1=100, \: x_2=0, \: x_3=0$ Unbounded solution No solution Solution : $x_1=50, \: x_2=70, \: x_3=60$

answered Nov 14, 2019 in Others by Arun Kumar Dey (27 points) | 543 views

0 votes

2 answers

21

UGCNET-July-2018-II-5
Given below are three implementations of the swap() function in C++: a b c void swap (int a, int b) { int temp; temp=a; a=b; b=temp; } int main() { int p=0, q=1; swap(p, q); } void swap (int &a, int &b) { int temp; temp=a; ... swap(&p, &q); } Which of these would actually swap the contents of the two integer variables p and q? a only b only c only b and c only

answered Nov 10, 2019 in Others by avinash99515 (53 points) | 818 views

0 votes

1 answer

22

ISI2015-DCG-44
If the distance between the foci of a hyperbola is $16$ and its eccentricity is $\sqrt{2}$, then the equation of the hyperbola is $y^2-x^2=32$ $x^2-y^2=16$ $y^2-x^2=16$ $x^2-y^2=32$

answered Nov 10, 2019 in Others by `JEET Boss (18.8k points) | 20 views

0 votes

1 answer

23

UGCNET-DEC2018-II-49
What does the following Java function perform? (Assume int occupies four bytes of storage) public static int f(int a) { // Pre-conditions : a > 0 and no oveflow/underflow occurs int b=0; for (int i=0; i<32; i++) { b = b<<1; ... $1$'s in the binary representation of integer a Return the int that represents the number of $0$'s in the binary representation of integer a

answered Nov 5, 2019 in Others by Rashmi Ashutosh Vish (71 points) | 135 views

0 votes

1 answer

24

ISI2014-DCG-49
Let $f(x) = \dfrac{x}{(x-1)(2x+3)}$, where $x>1$. Then the $4^{th}$ derivative of $f, \: f^{(4)} (x)$ is equal to $- \frac{24}{5} \bigg[ \frac{1}{(x-1)^5} - \frac{48}{(2x+3)^5} \bigg]$ ... $\frac{64}{5} \bigg[ \frac{1}{(x-1)^5} + \frac{48}{(2x+3)^5} \bigg]$

answered Oct 24, 2019 in Others by `JEET Boss (18.8k points) | 39 views

+1 vote

1 answer

25

ISI2015-MMA-54
If $0 <x<1$, then the sum of the infinite series $\frac{1}{2}x^2+\frac{2}{3}x^3+\frac{3}{4}x^4+ \cdots$ is $\log \frac{1+x}{1-x}$ $\frac{x}{1-x} + \log(1+x)$ $\frac{1}{1-x} + \log(1-x)$ $\frac{x}{1-x} + \log(1-x)$

answered Oct 19, 2019 in Others by chirudeepnamini Active (4.2k points) | 17 views

+1 vote

1 answer

26

ISI2014-DCG-57
If a focal chord of the parabola $y^2=4ax$ cuts it at two distinct points $(x_1,y_1)$ and $(x_2,y_2)$, then $x_1x_2=a^2$ $y_1y_2=a^2$ $x_1x_2^2=a^2$ $x_1^2x_2=a^2$

answered Oct 10, 2019 in Others by `JEET Boss (18.8k points) | 10 views

0 votes

1 answer

27

ISI2014-DCG-40
Let the following two equations represent two curves $A$ and $B$. $A: 16x^2+9y^2=144\:\: \text{and}\:\: B:x^2+y^2-10x=-21$ Further, let $L$ and $M$ be the tangents to these curves $A$ and $B$, respectively, at the point $(3,0)$. Then the angle between these two tangents, $L$ and $M$, is $0^{\circ}$ $30^{\circ}$ $45^{\circ}$ $90^{\circ}$

answered Oct 10, 2019 in Others by techbd123 Active (3.5k points) | 14 views

+1 vote

1 answer

28

ISI2015-MMA-21
Let $\omega$ denote a complex fifth root of unity. Define $b_k =\sum_{j=0}^{4} j \omega^{-kj},$ for $0 \leq k \leq 4$. Then $ \sum_{k=0}^{4} b_k \omega ^k$ is equal to $5$ $5 \omega$ $5(1+\omega)$ $0$

answered Oct 9, 2019 in Others by techbd123 Active (3.5k points) | 21 views

+1 vote

1 answer

29

ISI2014-DCG-14
$x^4-3x^2+2x^2y^2-3y^2+y^4+2=0$ represents A pair of circles having the same radius A circle and an ellipse A pair of circles having different radii none of the above

answered Sep 30, 2019 in Others by techbd123 Active (3.5k points) | 17 views

0 votes

2 answers

30

UGCNET-July-2018-II-22
Consider the array A=<4, 1, 3, 2, 16, 9, 10, 14, 8, 7>. After building heap from the array A, the depth of the heap and the right child of max-heap are ______ and _____ respectively (Root is at level 0). 3, 14 3, 10 4, 14 4, 10

answered Sep 25, 2019 in Others by umesh kaiwart (21 points) | 663 views

0 votes

0 answers

31

ISI2014-DCG-59
The equation $5x^2+9y^2+10x-36y-4=0$ represents an ellipse with the coordinates of foci being $(\pm3,0)$ a hyperbola with the coordinates of foci being $(\pm3,0)$ an ellipse with the coordinates of foci being $(\pm2,0)$ a hyperbola with the coordinates of foci being $(\pm2,0)$

asked Sep 23, 2019 in Others by Arjun Veteran (430k points) | 12 views

0 votes

0 answers

32

ISI2015-MMA-56
Let $\{a_n\}$ be a sequence of non-negative real numbers such that the series $\Sigma_{n=1}^{\infty} a_n$ is convergent. If $p$ is a real number such that the series $\Sigma \frac{\sqrt{a_n}}{n^p}$ diverges, then $p$ must be strictly less than $\frac{1}{2}$ ... but can be greater than$\frac{1}{2}$ $p$ must be strictly less than $1$ but can be greater than or equal to $\frac{1}{2}$

asked Sep 23, 2019 in Others by Arjun Veteran (430k points) | 10 views

0 votes

0 answers

33

ISI2015-MMA-65
Let $n$ be a positive real number and $p$ be a positive integer. Which of the following inequalities is true? $n^p > \frac{(n+1)^{p+1} – n^{p+1}}{p+1}$ $n^p < \frac{(n+1)^{p+1} – n^{p+1}}{p+1}$ $(n+1)^p < \frac{(n+1)^{p+1} – n^{p+1}}{p+1}$ none of the above

asked Sep 23, 2019 in Others by Arjun Veteran (430k points) | 8 views

0 votes

0 answers

34

ISI2015-MMA-66
The smallest positive number $K$ for which the inequality $\mid \sin ^2 x – \sin ^2 y \mid \leq K \mid x-y \mid$ holds for all $x$ and $y$ is $2$ $1$ $\frac{\pi}{2}$ there is no smallest positive value of $K$; any $K>0$ will make the inequality hold.

asked Sep 23, 2019 in Others by Arjun Veteran (430k points) | 8 views

0 votes

0 answers

35

ISI2015-MMA-67
Given two real numbers $a<b$, let $d(x,[a,b]) = \text{min} \{ \mid x-y \mid : a \leq y \leq b \} \text{ for } - \infty < x < \infty$. Then the function $f(x) = \frac{d(x,[0,1])}{d(x,[0,1]) + d(x,[2,3])}$ satisfies $0 \leq f(x) < \frac{1}{2}$ for every $x$ ... $f(x)=1$ if $ 0 \leq x \leq 1$ $f(x)=0$ if $0 \leq x \leq 1$ and $f(x)=1$ if $ 2 \leq x \leq 3$

asked Sep 23, 2019 in Others by Arjun Veteran (430k points) | 10 views

0 votes

0 answers

36

ISI2015-MMA-68
Let $f(x,y) = \begin{cases} e^{-1/(x^2+y^2)} & \text{ if } (x,y) \neq (0,0) \\ 0 & \text{ if } (x,y) = (0,0). \end{cases}$Then $f(x,y)$ is not continuous at $(0,0)$ continuous at $(0,0)$ but does not have first order partial derivatives continuous at $(0,0)$ and has first order partial derivatives, but not differentiable at $(0,0)$ differentiable at $(0,0)$

asked Sep 23, 2019 in Others by Arjun Veteran (430k points) | 13 views

0 votes

0 answers

37

ISI2015-MMA-70
Let $w=\log(u^2 +v^2)$ where $u=e^{(x^2+y)}$ and $v=e^{(x+y^2)}$. Then $\frac{\partial w }{\partial x} \mid _{x=0, y=0}$ is $0$ $1$ $2$ $4$

asked Sep 23, 2019 in Others by Arjun Veteran (430k points) | 10 views

0 votes

0 answers

38

ISI2015-MMA-71
Let $f(x,y) = \begin{cases} 1, & \text{ if } xy=0, \\ xy, & \text{ if } xy \neq 0. \end{cases}$ Then $f$ is continuous at $(0,0)$ and $\frac{\partial f}{\partial x}(0,0)$ exists $f$ is not continuous at $(0,0)$ ... $f$ is not continuous at $(0,0)$ and $\frac{\partial f}{\partial x}(0,0)$ does not exist

asked Sep 23, 2019 in Others by Arjun Veteran (430k points) | 9 views

0 votes

0 answers

39

ISI2015-MMA-83
If $\alpha, \beta$ are complex numbers then the maximum value of $\dfrac{\alpha \overline{\beta}+\overline{\alpha}\beta}{\mid \alpha \beta \mid}$ is $2$ $1$ the expression may not always be a real number and hence maximum does not make sense none of the above

asked Sep 23, 2019 in Others by Arjun Veteran (430k points) | 11 views

+1 vote

0 answers

40

ISI2015-MMA-84
For positive real numbers $a_1, a_2, \cdots, a_{100}$, let $p=\sum_{i=1}^{100} a_i \text{ and } q=\sum_{1 \leq i < j \leq 100} a_ia_j.$ Then $q=\frac{p^2}{2}$ $q^2 \geq \frac{p^2}{2}$ $q< \frac{p^2}{2}$ none of the above

asked Sep 23, 2019 in Others by Arjun Veteran (430k points) | 15 views

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