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Recent activity by Rahul Jain25
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User Rahul Jain25
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3
answers
1
Geometry_apptitude
I tried solving it by enumerating all the paths and got ans 12.Can anyone provide some formula for this ?
commented
Apr 13
in
Numerical Ability

49
views
#apptitude
1
answer
2
Rosen (proposition logic)
The nth statement in a list of 100 statements is “Exactly n of the statements in this list are false.” a) What conclusions can you draw from these statements? b) Answer part (a) if the nth statement is “At least n of the statements in this list are false.” c) Answer part (b) assuming that the list contains 99 statements.
answered
Mar 25
in
Mathematical Logic

58
views
1
answer
3
ace mock 6
which of the following methods will be the best if number of swappings done, is the only measure of efficiency? A) Bubble sort B) Selection sort C) Insertion sort D) Quick sort
commented
Mar 20
in
Algorithms

48
views
2
answers
4
Bridges
Which of the following are not true? I. Only gateway can be used to connect different protocol networks II. Gateway occur at all layers. III. Bridge and switch some times occur in network layer also IV. Repeater occur at both physical layer and data link layer. A)Only I and IV B)Only II, III and IV C)Only III and IV D)Only I, II and III
commented
Mar 19
in
Computer Networks

110
views
2
answers
5
Arun SharmaTime Speed Distance
answered
Mar 19
in
Verbal Ability

83
views
aptitude
speedtime
0
answers
6
Network layer
Consider three IP networks A, B and C. Host HA in networks A sends messages each containing 180 bytes of application data to a host HC in network C. The TCP layer prefixes a 20 byte header to the message. This passes through an intermediate ... Ignore errors, acknowledgements, and other overheads. A)325.5 Kbps B)354.5 Kbps C)409.6 Kbps D)512.0 Kbps
closed
Mar 18
in
Computer Networks

31
views
1
answer
7
NPTELOperating System,Week2Quiz2Q5
commented
Mar 18
in
Operating System

152
views
nptelquiz
operatingsystem
1
answer
8
starvation
I'm looking for an explanation for this Since no bounded waiting means a process waits while others can enter the system hence that process is starving and starvation freedom implies no process should starve for a long amount of time (not ... not true no starvation => bounded waiting I think I might be missing something so can you please highlight that
commented
Mar 18
in
Operating System

96
views
operatingsystem
deadlock
1
answer
9
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??
answered
Mar 16
in
Programming

59
views
2
answers
10
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 ?
commented
Mar 16
in
Probability

80
views
discretemathematics
probability
1
answer
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 ?
commented
Mar 16
in
Probability

66
views
discretemathematics
probability
1
answer
12
gatebook
How many ways are there for arranging letters of the word AMAZING such that the 'I' appears between the two 'A's? (A) 5! ways (B) 7! ways (C) 8! ways (D) 4! ways Note: AMZIA is valid and AIA is also valid right?
commented
Mar 16
in
Numerical Ability

145
views
gatebook
combinatory
combinatorics
permutation
2
answers
13
doubt
shouldn't be answer "4" short term scheduler?
answer selected
Mar 16
in
Operating System

63
views
operatingsystem
1
answer
14
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
answer selected
Mar 16
in
Computer Networks

39
views
computernetworks
1
answer
15
Probability
The probability that a student knows the correct answer to a multiple choice question is 2/3. If the student doesn't know the answer then the student guess the answer. The probability of the guess answer is being correct is 1/4.given that student has answer the questions correctly, the conditional probability that the student knows the correct answer is
answer selected
Mar 14
in
Mathematical Logic

45
views
probability
1
answer
16
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
answer selected
Mar 13
in
Digital Logic

87
views
isro
isroee
digitallogic
1
answer
17
gatebook mt2
A certain pipelined RISC machine has 8 generalpurpose registers R0, R1, . . . , R7 and supports the following operations. ADD Rs1, Rs2, Rd /* Add Rs1 to Rs2 and put the sum in Rd */ MUL Rs1, Rs2, Rd /* Multiply Rs1 by Rs2 and put the product in ... cycles required for an operation sequence that computes the value of AB + ABC + BC ? (A) 5 (B) 6 (C) 7 (D) 8
commented
Mar 11
in
CO & Architecture

156
views
machineinstructions
#computerorganisationandarchitecture
clockcycle
1
answer
18
ISRO 2013 probability [EE]
Ten percent of screws produced in a certain factory turn out to be defective. Find the probability that in a sample of 10 screws chosen at random, exactly two will be defective. a) 0.2 b) 0.25 c) 0.8 d) 0.3 79.
commented
Mar 11
in
Probability

81
views
isro
isroee
probability
1
answer
19
ISRO 2013 Quadractic equation [EE]
answer selected
Mar 11
in
Linear Algebra

51
views
isro
engineeringmathematics
1
answer
20
ISRO 2014 Complex Numbers [EE]
answer edited
Mar 11
in
Linear Algebra

37
views
isro
isroee
engineeringmathematics
1
answer
21
ISRO 2015 Complex Numbers [EE]
answer selected
Mar 10
in
Linear Algebra

52
views
isro
isroee
engineeringmathematics
1
answer
22
ISRO 2015 Differential equation [EE]
answered
Mar 10
in
Calculus

57
views
isro
isroee
engineeringmathematics
1
answer
23
ISRO 2014 Quadratic Equation [EE]
answered
Mar 10
in
Linear Algebra

27
views
isro
isroee
engineeringmathematics
1
answer
24
ISRO 2014 probability [EE]
80. 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
answered
Mar 10
in
Probability

65
views
isro
isroee
engineeringmathematics
probability
4
answers
25
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
answered
Mar 10
in
Digital Logic

67
views
isro
isroee
1
answer
26
ISRO 2015  Johnson counter [EE]
answered
Mar 10
in
Digital Logic

69
views
isro
digitallogic
isroee
2
answers
27
ISRO201363
Consider the following $C$ code. #include <stdio.h> #include <math.h> void main () { double pi = 3.1415926535; int a = 1; int i; for (i=0; i < 3; i++) if (a = cos(pi * i/2)) printf("% d", 1); else printf("%d", 0); } What would the program print? $000$ $010$ $101$ $111$
comment edited
Mar 10
in
Programming

681
views
isro2013
programminginc
identifyfunction
programoutput
2
answers
28
ISRO 2013 Calculus [Mech]
Lim x $\rightarrow$0 $\frac{x^{2}+ x  Sin x}{x^{2}}$ (a) 0 (b) ∞ (c) 1 (d) None of these
answer selected
Mar 8
in
Calculus

46
views
engineeringmathematics
isromech
isro
1
answer
29
ISRO 2012 Probability [Mech]
The probability that A happens is 1/3. the odds against happening A are: a) 2:1 b) 3:2 c) 1:2 d) 2:3
answer selected
Mar 7
in
Probability

63
views
engineeringmathematics
isro
isromech
1
answer
30
ISRO 2016 Vectors [Mech]
The sine of the angle between the two vectors a = 3i + j + k and b = 2i 2j + k is (a) √ (74/99) (b) √ (25/99) (c) √ (37/99) (d) √ (5/99)
answer selected
Mar 7
in
Linear Algebra

36
views
engineeringmathematics
isro
isromech
1
answer
31
ISRO 2015 Conic sections [Mech]
answered
Mar 7
in
Linear Algebra

25
views
engineeringmathematics
isro
isromech
1
answer
32
ISRO 2014 vector {mech}
Angle made between vector C = 2i 3j+ 4k and the Zaxis is a) 4 /√29 b) sin  1 4 /√29 c) cos 1 4 /√29 d) tan 1 4 /√29
answered
Mar 7
in
Linear Algebra

22
views
engineeringmathematics
isro
isromech
1
answer
33
ISRO 2012 Mech Engineering mathematics Cross product
answered
Mar 7
in
Linear Algebra

28
views
isro
isromech
engineeringmathematics
2
answers
34
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
answered
Mar 7
in
Probability

49
views
engineeringmathematics
isro
isromech
1
answer
35
ISRO 2012 Mech Mean of Numbers
answer selected
Mar 7
in
Linear Algebra

28
views
engineeringmathematics
isro
isromech
1
answer
36
ISRO 2012: Mech Complex Numbers
answer selected
Mar 7
in
Linear Algebra

30
views
engineeringmathematics
isro
isromech
1
answer
37
ISRO2013ECE Digital Logic
What is the frequency and duty cycle of output Y, when CLK frequency is 1MHz @ 50% duty cyle? a) 500 KHz @ 50% duty cycle b) 500 KHz @ 25% duty cycle c) 250 KHz @ 50% duty cycle d) 250 KHz @ 25% duty cycle
commented
Mar 6
in
Digital Logic

86
views
isro2013ece
isro
digitallogic
1
answer
38
ISRO 2009ECE Engineering Mathematics
commented
Mar 6
in
Linear Algebra

42
views
isro
isroece
engineeringmathematics
1
answer
39
ISRO2013ECE Digital Logic
What is the division factor of the given clock divider circuit? a) 2 b) 3 c) 1.5 d) 2.5
answer selected
Mar 6
in
Digital Logic

56
views
isro2013ece
isro
digitallogic
1
answer
40
memory management
Does paging (non contiguous allocation method) removes external fragmentation completely ? If yes, is there no chance of internal fragmentation? If possible , illustrate with example.
commented
Mar 6
in
Operating System

54
views
22,147
questions
28,138
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