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Answers by Rahul Jain25

0 votes
1
What does the following code do?
int A(struct node* node) { if (node==NULL) return 0; else { int lDepth = A(node->left); int rDepth = A(node->right); /* use the larger one */ if (lDepth > rDepth) return(lDepth+1); else return(rDepth+1); } }
int A(struct node* node) { if (node==NULL) return 0; else { int lDepth = A(node->left); int rDepth = A(node->right); /* use the larger one */ if (lDepth rDepth) return(l...
16 votes
2
ISRO2017-49
The number of swappings needed to sort the numbers $8 , 22, 7, 9, 31, 5, 13$ in ascending order using bubble sort is $11$ $12$ $13$ $10$
The number of swappings needed to sort the numbers $8 , 22, 7, 9, 31, 5, 13$ in ascending order using bubble sort is$11$$12$$13$$10$
7 votes
3
ISRO2017-40
XPath is used to navigate through elements and attributes in XSL document XML document XHTML document XQuery document
XPath is used to navigate through elements and attributes inXSL documentXML documentXHTML documentXQuery document
1 votes
4
Geometry_aptitude
I tried solving it by enumerating all the paths and got ans 12.Can anyone provide some formula for this ?
I tried solving it by enumerating all the paths and got ans 12.Can anyone provide some formula for this ?
2 votes
8
C language
#include <stdio.h> #define R 10 #define C 20 int main() { int (p)[R][C]; printf("%d", sizeof(p)); printf("\n%d",sizeof(*p)); printf("\n%d",sizeof(**p)); getchar(); return 0; } i m thinking output is 4, 800, 4 ?? any body explain it??
#include <stdio.h>#define R 10#define C 20int main(){int (p)[R][C];printf("%d", sizeof(p));printf("\n%d",sizeof(*p));printf("\n%d",sizeof( p));getchar();return 0;} i...
0 votes
9
doubt
shouldn't be answer "4" short term scheduler?
shouldn't be answer "4" short term scheduler?
1 votes
10
doubt
By using RSA algo find the values of decryption key(D) when n=77,encryption key(E)=7 A)50 B)37 C)43 D)56
By using RSA algo find the values of decryption key(D) when n=77,encryption key(E)=7 A)50 B)37 C)43 D)56
4 votes
11
probability
There are $N$ persons sitting in a row. Two of them are selected at random.The probability that two selected persons are not together ?
There are $N$ persons sitting in a row. Two of them are selected at random.The probability that two selected persons are not together ?
1 votes
12
probability
There are four machines and it is known that exactly two of them are faulty .They are tested one by one in a random order till both the faulty machines are identified ,then the probability that only two tests are needed ?
There are four machines and it is known that exactly two of them are faulty .They are tested one by one in a random order till both the faulty machines are identified ,th...
0 votes
13
ISRO 2014 -Complex Numbers [EE]
If $[ $\frac{1+i}{1-i} ] ^ x$ =$1$ then (A) x = 2n + 1, where n is any positive integer (B) x = 2n, where n is any positive integer (C) x = 4n + 1, where n is any positive integer (D) x = 4n, where n is any positive integer
If $[ $$\frac{1+i}{1-i} ] ^ x$ =$1$ then(A) x = 2n + 1, where n is any positive integer(B) x = 2n, where n is any positive integer(C) x = 4n + 1, where n is any positive ...
1 votes
14
ISRO 2015- Differential equation [EE]
The solution of the differential equation (d y /dx)=ky , Y(0)= C is (a) x =ce-xy (b) y= cekx (c) x =ke cy (d) y= ce-kx
The solution of the differential equation (d y /dx)=ky , Y(0)= C is(a) x =ce-xy(b) y= cekx(c) x =ke cy(d) y= ce-kx
0 votes
15
ISRO 2014- Quadratic Equation [EE]
If one root of the equation x 2+ px +12 =0 is 4, while the equation x 2 + px + q = 0 has equal roots, then the value of 'q' is (A) 49/4 (B) 4 (C) 49/16 (D) 12
If one root of the equation x 2+ px +12 =0 is 4, while the equation x 2 + px + q = 0 has equal roots, then the value of 'q' is(A) 49/4(B) 4 (C) 49/16(D) 12
2 votes
16
ISRO 2014- probability [EE]
A student is to answer 10 out of 13 questions in an examination such that he must choose at least 4 from the first five questions. The number of choices available to him is (A) 140 (B) 196 (C) 280 (D) 346
A student is to answer 10 out of 13 questions in an examination such that he must choose at least 4 from the first five questions. The number of choices available to him ...
0 votes
17
ISRO 2015 Truth table [EE]
The truth table X Y F 0 0 0 0 1 0 1 0 1 1 1 1 Represent the Boolean function (a) X (b) X - Y (c) X +Y (d) Y
The truth tableXYF000010101111 Represent the Boolean function(a) X(b) X - Y(c) X +Y(d) Y
1 votes
18
ISRO 2015- Ripple Counter [EE]
A 4 bit module -16 ripple counter uses JK F/F. If the propagation delay of each F/F is 50 nano seconds, the maximum clock frequency that can be used is equal to (a) 20 MHz (b) 5 MHz (c) 10 MHz (d) 4 MHz
A 4 bit module -16 ripple counter uses JK F/F. If the propagation delay of each F/F is 50 nano seconds, the maximum clock frequency that can be used is equal to(a) 20 MHz...
1 votes
19
ISRO 2015 - Johnson counter [EE]
A three stage Johnson counter ring in figure is clocked at a constant frequency of fc from starting state of Q0Q1Q2 = 101. The frequency of output Q0Q1Q2 will be (a) fc / 2 (b) fc /6 (c) fc/ 3 (d) fc /8
A three stage Johnson counter ring in figure is clocked at a constant frequency of fc from starting state of Q0Q1Q2 = 101. The frequency of output Q0Q1Q2 will be(a) fc / ...
0 votes
20
ISRO 2015- Conic sections [Mech]
Circular shapes appear in this fashion when viewed at an angle other than 90 degrees (a) Circular (b) Elliptical (c) Lengthened (d) Angular
Circular shapes appear in this fashion when viewed at an angle other than 90 degrees(a) Circular (b) Elliptical (c) Lengthened (d) Angular
0 votes
21
ISRO 2014- vector {mech}
Angle made between vector C = 2i- 3j+ 4k and the Z-axis is a) 4 /√29 b) $sin^ {- 1}$ 4 /√29 c) $cos^ {-1}$ 4 /√29 d) $tan ^{-1 }$4 /√29
Angle made between vector C = 2i- 3j+ 4k and the Z-axis isa) 4 /√29b) $sin^ {- 1}$ 4 /√29c) $cos^ {-1}$ 4 /√29d) $tan ^{-1 }$4 /√29
0 votes
22
ISRO 2012- [Mech] Engineering mathematics Cross product
A x B is a vector (a) Parallel to A, but perpendicular to B (b) Parallel to B, but perpendicular to A. (c) Perpendicular to both A &B (d) Parallel to both A & B
A x B is a vector(a) Parallel to A, but perpendicular to B(b) Parallel to B, but perpendicular to A.(c) Perpendicular to both A &B(d) Parallel to both A & B
1 votes
23
ISRO 2012: [Mech] Probability
Let E and F be any two events with P(E U F)= 0.8, P(E) = 0.4 and P (E/ F) = 0.3. Then P (F) is (a) 3/7 (b) 4/7 (c) 3/5 (d) 2/5
Let E and F be any two events with P(E U F)= 0.8, P(E) = 0.4 and P (E/ F) = 0.3. Then P (F) is(a) 3/7(b) 4/7(c) 3/5(d) 2/5
0 votes
24
ISRO 2009-ECE Engineering Mathematics
There is a function f(x), such that f(0) = 1 and f ' (0)= -1 and f(x) is positive for all values of x. Then, a) f"(x) < 0 for all x b) -1 < f'' (x) < 0 for all x c) -2 < f '' (x) < -1 for all x d) None of the above
There is a function f(x), such that f(0) = 1 and f ' (0)= -1 and f(x) is positive for all values of x. Then,a) f"(x) < 0 for all xb) -1 < f'' (x) < 0 for all xc) -2 < f ...
1 votes
25
ISRO 2008- ECE Odd parity
Odd parity generator uses _____ logic (a) XNOR (b) XOR (c) Sequential (d) OR
Odd parity generator uses _____ logic(a) XNOR(b) XOR(c) Sequential(d) OR
1 votes
26
ISRO 2008-ECE Moore model for squntial circuits
Which of the following represents the Moore model for sequential circuits?
Which of the following represents the Moore model for sequential circuits?
1 votes
28
If y is of integer type then the below expressions 3*(y-8) / 9 and (y-8) / 9*3
If y is of integer type then the below expression 3*(y-8) / 9 and (y-8) / 9*3 a) must yield different value B)Must yield same value c) may or may not yield same value D) none of the above
If y is of integer type then the below expression 3*(y-8) / 9 and (y-8) / 9*3 a) must yield different valueB)Must yield same valuec) may or may not yield same valueD) non...
1 votes
30
ISRO2013-ECE: Digital Logic
Which of the following is the Boolean function for majority voting, assuming $\text{A, B, C}$ are inputs and $\text{Y}$ is output? $\text{Y = AB + AC + BC}$ $\text{Y = A + B + C}$ $\text{Y = ABC}$ $\text{Y= AB + BC}$
Which of the following is the Boolean function for majority voting, assuming $\text{A, B, C}$ are inputs and $\text{Y}$ is output?$\text{Y = AB + AC + BC}$$\text{Y = A + ...
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