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User sh!va
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2
answers
1
Check for Regular Language
Check whether given language is Regular or not? WXWR / W,X∈(0,1)+
answered
3 days
ago
in
Theory of Computation

45
views
theoryofcomputation
regularlanguage
1
answer
2
Doubt from coa. How bus length is decided?
answered
3 days
ago
in
CO & Architecture

35
views
1
answer
3
TOC: empty language and epsilon
asked
4 days
ago
in
Theory of Computation

36
views
theoryofcomputation
4
answers
4
ISRO200974
Use of IPSEC in tunnel mode results in IP packet with same header IP packet with new header IP packet without header No changes in IP packet
answered
Apr 15
in
Computer Networks

461
views
isro2009
computernetworks
ippacket
4
answers
5
ISRO200968
A testing method which is normally used as the acceptance test for a software system, is Regression Testing Integration Testing Unit Testing System Testing
answered
Apr 15
in
IS&Software Engineering

655
views
isro2009
is&softwareengg
softwaretesting
2
answers
6
ISRO200962
If A, B, C are any three matrices, then A'+B'+C' is equal to a null matrix A+B+C (A+B+C)' (A+B+C)
answered
Apr 15
in
Linear Algebra

433
views
isro2009
linearalgebra
matrices
3
answers
7
C programming
void main() { unsigned char var=0; for(var=0;var<=255;var++) { printf("%d ",var); } } What is output of this code?
answer selected
Apr 15
in
Programming

52
views
programminginc
cprogramming
1
answer
8
UGCNETDec2015II32
Suppose that from given statistics, it is known that meningitis causes stiff neck 50% of the time, that the proportion of persons having meningitis is $\frac{1}{50000}$, and that the proportion od people having stiff neck is $\frac{1}{20}$. Then the percentage of people who had meningtis and complain about stiff neck is: 0.01% 0.02% 0.04% 0.05%
answered
Apr 7
in
Others

87
views
ugcnetdec2015ii
2
answers
9
UGCNETDec2015II3
Which of the following is/are not true ? The set of negative integers is countable. The set of integers that are multiples of 7 is countable. The set of even integers is countable. The set of real numbers between 0 and 1⁄2 is countable. a and c b and d b only d only
answered
Apr 7
in
Others

73
views
ugcnetdec2015ii
3
answers
10
UGCNETDec2015III44
In propositional logic, given P and P $\rightarrow$ Q, we can infer ____ $\sim$ Q Q P $\wedge$ Q $\sim$ P $\wedge$ Q
answer edited
Apr 6
in
Others

80
views
ugcnetdec2015iii
1
answer
11
C PROGRAMMING
commented
Mar 20
in
Programming

48
views
1
answer
12
full binary tree , complete and almost complete binary tree difference
answered
Mar 20
in
Programming

106
views
2
answers
13
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
answered
Mar 20
in
Computer Networks

110
views
1
answer
14
Spin lock vs Mutexes
If no resource is free then: a) Both Spin lock and mutexes will keep on spinning on the blocked variable b) Both Spin lock and mutexes will go to sleep and check the variable periodically. c) Spin lock will keep on ... ) Mutexes will keep on spinning on the blocked variable while Spin lock will go to sleep and check the variable periodically.
asked
Mar 15
in
Operating System

54
views
processsynchronization
operatingsystem
0
answers
15
UGC NET Encryption
If in an error detection and correction code a message M : “ You are good students” is stored as C : Youare areyou aregood goodare goodstudents studentsgood. What is the space required to store C in general ? (assume that ‘n’ is the length of M) (A) 2n (B) 3n (C) 4n (D) less than 4n
asked
Mar 14
in
Computer Networks

51
views
netexam
computernetworks
1
answer
16
NET 2011 Communication Noise
In a communication system, noise is most likely to affect the signal (A) at a transmitter (B) in a channel (C) in the information source (D) at the destination
asked
Mar 14
in
Computer Networks

28
views
net
computernetworks
0
answers
17
NET 2011 Flag bits
List – I List – II (Flags) (Bit Position) (a) Sign flag (i) 4th bit (b) Parity (ii) 6th bit (c) Zero (iii) 2nd bit (d) Auxiliary carry (iv) 7th bit Codes : (a) (b) (c) (d) (A) (i) (iii) (ii) (iv) (B) (iv) (iii) (ii) (i) (C) (i) (iv) (iii) (ii) (D) (ii) (i) (iii) (iv)
asked
Mar 14
in
Digital Logic

37
views
digitallogic
net
1
answer
18
NET 2011 Communication Cables
The highest data rate can be transmitted using following cables : 1. Coaxial cable 2. Twistedwire cable 3. Optical fiber cable The correct sequence in the increasing order is (A) 1, 3, 2 (B) 3, 1, 2 (C) 2, 1, 3 (D) 3, 2, 1
asked
Mar 14
in
Computer Networks

30
views
net
computernetworks
0
answers
19
NET2011[ECE] Logic family
Consider the following logic families : 1. MOS 2. DTL 3. RTL 4. ECL The sequence of the logic families in the order of their increasing noise margin is (A) 3, 4, 1, 2 (B) 3, 4, 2, 1 (C) 4, 3, 1, 2 (D) 4, 3, 2, 1
asked
Mar 14
in
Digital Logic

29
views
net
digitallogic
3
answers
20
NET 2011[ECE] C program
Consider the following structure and declaration : 1. struct date { 2. int day; 3. int month; 4. int year; 5. }; Struct data *pd ; Which of the following is the correct method to refer to the year member ? (A) (*pd)⋅year (B) (*pd)*year (C) (*pd)→year (D) pd→year
asked
Mar 14
in
Programming

56
views
net
programminginc
0
answers
21
IES 2011: Digital Circuits / ROM and PLA [ECE]
asked
Mar 14
in
Digital Logic

32
views
digitallogic
ies
0
answers
22
CIL Exam: Matrices
In an MxN matrix such that all nonzero entries are covered in a rows and b columns. Then the maximum number of nonzero entries, such that no two are on the same row or column, is A) a + b B) max {a, b} C) min {Ma, Nb} D) min {a, b}
asked
Mar 14
in
Linear Algebra

39
views
engineeringmathematics
2
answers
23
Peter Linz Exercise 3.2
GIve a DFA that accepts the following language : L(ab(a+ab)*(a+aa)) What could be the minimum number of states in such DFA?
answered
Mar 13
in
Theory of Computation

81
views
theoryofcomputation
regularexpressions
dfa
1
answer
24
Peter Linz Exercise 3.2
Provide dfa for the below regular expression
answered
Mar 13
in
Theory of Computation

78
views
theoryofcomputation
regularexpressions
2
answers
25
set theory
commented
Mar 13
in
Set Theory & Algebra

21
views
discretemathematics
settheory&algebra
engineeringmathematics
sets
4
answers
26
ISRO 2015 Eigen Values [mech]
$\begin{bmatrix} 4 & 1 \\ 1& 4 \end{bmatrix}$ Eigen values of the matrix are: a) 3,3 b) 3, 5 c) 3, 5 d) 5 ,0
commented
Mar 12
in
Linear Algebra

67
views
engineeringmathematics
isro
isroece
isromech
eigenvalue
0
answers
27
first order logic
Consider the following logic program P A(x) < B(x, y), C(y) < B(x,x) Which of the following first order sentences is equivalent to P?
commented
Mar 12
in
Mathematical Logic

37
views
1
answer
28
ISRO 2015 Complex Numbers [EE]
asked
Mar 10
in
Linear Algebra

46
views
isro
isroee
engineeringmathematics
1
answer
29
ISRO 2015 Differential equation [EE]
asked
Mar 10
in
Calculus

50
views
isro
isroee
engineeringmathematics
1
answer
30
ISRO 2015 Regsiters [EE]
Resistor of microprocessor which keeps track of the execution of program and which contain the memory address of next instruction to be executed is called (a) Index resistor (b) Program counter (c) Memory address resistor (d) Instruction resistor
asked
Mar 10
in
CO & Architecture

70
views
isro
isroee
1
answer
31
ISRO 2015 OS [EE]
OS that permits multiples programs to run simultaneously using single processor is referred as (a) Multitasking (b) Multi user (c) Multithreading (d) Multiprocessing
asked
Mar 10
in
Operating System

99
views
isro
isroee
1
answer
32
ISRO 2015 Optical fiber [EE]
The cladding which surrounds the optic fiber line is used (a) To protect the fiber (b) To reduce optical interference (c) Because it help to guide light in the core (d) To ensure that refractive index remains constant
asked
Mar 10
in
Computer Networks

66
views
isro
isroee
computernetworks
1
answer
33
ISRO 2015 Main memory [EE]
Techniques that automatically move program and data blocks into physical main memory when they are required for execution are called (a) Main memory techniques (b) Cache memory techniques (c) Virtual memory techniques (d) Associate memory techniques
asked
Mar 10
in
CO & Architecture

55
views
isro
isroee
1
answer
34
ISRO 2015 UDP/TCP [EE]
The transport layer protocol used for real time multimedia, file transfer, DNS and email respectively are (a) TCP, UDP, UDP and TCP (b) UDP, TCP, UDP and TCP (c) UDP, TCP, TCP and UDP (d) TCP, UDP, TCP and UDP
asked
Mar 10
in
Computer Networks

50
views
isro
isroee
computernetworks
1
answer
35
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
asked
Mar 10
in
Digital Logic

74
views
isro
isroee
digitallogic
1
answer
36
ISRO 2015  Johnson counter [EE]
asked
Mar 10
in
Digital Logic

52
views
isro
digitallogic
isroee
4
answers
37
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
asked
Mar 10
in
Digital Logic

61
views
isro
isroee
1
answer
38
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
asked
Mar 10
in
Probability

61
views
isro
isroee
engineeringmathematics
probability
1
answer
39
ISRO 2014 Trigonometry [EE]
79. If tan $\Theta$ = 8 / 15 and $\Theta$ is acute, then cosec $\Theta$ (A) 8 / 17 (B) 8 / 15 (C) 17 / 8 (D) 17 / 15
asked
Mar 10
in
Linear Algebra

29
views
isro
isroee
engineeringmathematics
1
answer
40
ISRO 2014 Quadratic Equation [EE]
asked
Mar 10
in
Linear Algebra

24
views
isro
isroee
engineeringmathematics
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