Recent questions tagged isro2009

+3 votes

3 answers

1

ISRO2009-76
Process is A program in high level language kept on disk Contents of main memory A program in execution A job in secondary memory

asked Jun 15, 2016 in Operating System by jothee Veteran (115k points) | 1.2k views

+4 votes

2 answers

2

ISRO2009-71
Which of the following contains complete record of all activity that affected the contents of a database during a certain period of time? Transaction log Query language Report writer Data manipulation language

asked Jun 15, 2016 in Databases by jothee Veteran (115k points) | 2.6k views

+7 votes

4 answers

3

ISRO2009-67
Activities which ensure that the software that has been built, is traceable to customer requirement is covered as part of Verification Validation Maintenance Modeling

asked Jun 15, 2016 in IS&Software Engineering by jothee Veteran (115k points) | 1.6k views

+4 votes

1 answer

4

ISRO2009-66
If the pdf of a Poisson distribution is given by $f(x) = \frac{e^{-2} 2^x}{x!}$ then its mean is $2^x$ $2$ $-2$ $1$

asked Jun 15, 2016 in Probability by jothee Veteran (115k points) | 1.3k views

+2 votes

1 answer

5

ISRO2009-65
If the mean of a normal frequency distribution of 1000 items is 25 and its standard deviation is 2.5, then its maximum ordinate is $\frac{1000}{\sqrt{2 \pi} } e^{-25}$ $\frac{1000}{\sqrt{2 \pi} }$ $\frac{1000}{\sqrt{2 \pi} } e^{-2.5}$ $\frac{400}{\sqrt{2 \pi} }$

asked Jun 15, 2016 in Probability by jothee Veteran (115k points) | 1.7k views

+3 votes

2 answers

6

ISRO2009-62
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)

asked Jun 15, 2016 in Linear Algebra by jothee Veteran (115k points) | 1.4k views

+4 votes

1 answer

7

ISRO2009-61
If $\begin{vmatrix} 3 && 3 \\ x && 5 \end{vmatrix} =3$ then the value of $x$ is 2 3 4 5

asked Jun 15, 2016 in Linear Algebra by jothee Veteran (115k points) | 979 views

+6 votes

1 answer

8

ISRO2009-60
If two adjacent rows of a determinant are interchanged, the value of the determinant becomes zero remains unaltered becomes infinitive becomes negative of its original value

asked Jun 15, 2016 in Linear Algebra by jothee Veteran (115k points) | 1.3k views

+3 votes

2 answers

9

ISRO2009-59
A square matrix A is called orthogonal if A'A= I A -A -I

asked Jun 15, 2016 in Linear Algebra by jothee Veteran (115k points) | 1.2k views

+6 votes

2 answers

10

ISRO2009-56
A simple graph ( a graph without parallel edge or loops) with $n$ vertices and $k$ components can have at most $n$ edges $n-k$ edges $(n-k) (n-k+1)$ edges $(n-k) (n-k+1)/2$ edges

asked Jun 15, 2016 in Graph Theory by jothee Veteran (115k points) | 1.3k views

+5 votes

3 answers

11

ISRO2009-55
In a graph G there is one and only one path between every pair of vertices then G is a Path Walk Tree Circuit

asked Jun 15, 2016 in Graph Theory by jothee Veteran (115k points) | 1.7k views

+7 votes

1 answer

12

ISRO2009-54
A graph in which all nodes are of equal degree, is known as Multigraph Non regular graph Regular graph Complete graph

asked Jun 15, 2016 in Graph Theory by jothee Veteran (115k points) | 1.5k views

+6 votes

1 answer

13

ISRO2009-52
If G is a graph with e edges and n vertices the sum of the degrees of all vertices in G is e e/2 e$^2$ 2 e

asked Jun 15, 2016 in Graph Theory by jothee Veteran (115k points) | 1.2k views

+3 votes

2 answers

14

ISRO2009-51
The formula $P_k = y_0 + k \triangledown y_0+ \frac{k(k+1)}{2} \triangledown ^2 y_0 + \dots + \frac{k \dots (k+n-1)}{n!} \triangledown ^n y_0$ is Newton's backward formula Gauss forward formula Gauss backward formula Stirling's formula

asked Jun 15, 2016 in Numerical Methods by jothee Veteran (115k points) | 1.1k views

+4 votes

1 answer

15

ISRO2009-50
The value of $x$ at which $y$ is minimum for $y=x^2 -3x +1 $ is -3/2 3/2 0 -5/4

asked Jun 15, 2016 in Calculus by jothee Veteran (115k points) | 1.2k views

+4 votes

1 answer

16

ISRO2009-49
$x=a \cos(t), y=b \sin(t)$ is the parametric form of Ellipse Hyperbola Circle Parabola

asked Jun 15, 2016 in Calculus by jothee Veteran (115k points) | 1k views

+4 votes

1 answer

17

ISRO2009-48
The cubic polynomial $y(x)$ which takes the following values: $y(0)=1, y(1)=0, y(2)=1$ and $y(3)=10$ is $x^3 +2x^2 +1$ $x^3 +3x^2 -1$ $x^3 +1$ $x^3 -2x^2 +1$

asked Jun 15, 2016 in Numerical Methods by jothee Veteran (115k points) | 900 views

+3 votes

1 answer

18

ISRO2009-47
The formula $\int\limits_{x0}^{xa} y(n) dx \simeq h/2 (y_0 + 2y_1 + \dots +2y_{n-1} + y_n) - h/12 (\triangledown y_n - \triangle y_0)$ $- h/24 (\triangledown ^2 y_n + \triangle ^2 y_0) -19h/720 (\triangledown ^3 y_n - \triangle ^3 y_0) \dots $ is called Simpson rule Trapezoidal rule Romberg's rule Gregory's formula

asked Jun 15, 2016 in Numerical Methods by jothee Veteran (115k points) | 945 views

+4 votes

1 answer

19

ISRO2009-46
The shift operator $E$ is defined as $E [f(x_i)] = f (x_i+h)$ and $E'[f(x_i)]=f (x_i -h)$ then $\triangle$ (forward difference) in terms of $E$ is $E-1$ $E$ $1-E^{-1}$ $1-E$

asked Jun 15, 2016 in Numerical Methods by jothee Veteran (115k points) | 1.3k views

+4 votes

2 answers

20

ISRO2009-33
The feature in object-oriented programming that allows the same operation to be carried out differently, depending on the object, is Inheritance Polymorphism Overfunctioning Overriding

asked Jun 15, 2016 in Object Oriented Programming by jothee Veteran (115k points) | 1.3k views

+6 votes

3 answers

21

ISRO2009-31
A full binary tree with $n$ leaves contains $n$ nodes $\log_2 n$ nodes $2n-1$ $2^n$ nodes

asked Jun 14, 2016 in DS by jothee Veteran (115k points) | 2.9k views

+3 votes

2 answers

22

ISRO2009-28
The infix expression $A+(B-C)^*D$ is correctly represented in prefix notation as $A+B-C^*D$ $+A^*-BCD$ $ABC-D^*+$ $A+BC-D^*$

asked Jun 14, 2016 in Compiler Design by jothee Veteran (115k points) | 1.3k views

+3 votes

2 answers

23

ISRO2009-20
Consider the following boolean function of four variables $f(w,x,y,z) = \Sigma(1,3,4,6,911,12,14)$, the function is Independent of one variable Independent of two variables Independent of three variables Dependent on all variables

asked Jun 14, 2016 in Digital Logic by jothee Veteran (115k points) | 1.9k views

+5 votes

2 answers

24

ISRO2009-17
Consider a set of 5 processes whose arrival time, CPU time needed and the priority are given below: Process Priority Arrival Time (in ms) CPU Time Needed Priority P1 0 10 5 P2 0 5 2 P3 2 3 1 P4 5 20 4 P5 10 2 3 (smaller the number, higher the ... the CPU scheduling policy is priority scheduling without pre-emption, the average waiting time will be 12.8 ms 11.8 ms 10.8 ms 09,8 ms

asked Jun 14, 2016 in Operating System by jothee Veteran (115k points) | 2.9k views

+3 votes

4 answers

25

ISRO2009-11
A page fault Occurs when a program accesses an available page on memory is an error in a specific page is a reference to a page belonging to another program occurs when a program accesses a page not currently in memory

asked Jun 14, 2016 in Operating System by jothee Veteran (115k points) | 1.2k views

+4 votes

3 answers

26

ISRO2009-10
The correct matching of the following pairs is (A) Disk check (1) Round robin (B) Batch processing (2) Scan (C) Time sharing (3) LIFO (D) Stack operation (4) FIFO A B C D a 3 4 2 1 b 4 3 2 1 c 3 4 1 2 d 2 4 1 3

asked Jun 14, 2016 in Operating System by jothee Veteran (115k points) | 1.5k views

+3 votes

3 answers

27

ISRO2009-4
Which of the following is a MAC address? 192.166.200.50 00056A:01A01A5CCA7FF60 568, Airport Road 01:A5:BB:A7:FF:60

asked Jun 14, 2016 in Computer Networks by jothee Veteran (115k points) | 1.6k views

+4 votes

2 answers

28

ISRO2009-2
In networking, UTP stands for Unshielded T-connector port Unshielded twisted pair Unshielded terminating pair Unshielded transmission process

asked Jun 14, 2016 in Computer Networks by jothee Veteran (115k points) | 1.1k views

+6 votes

2 answers

29

ISRO2008-66, ISRO2009-15
The performance of Round Robin algorithm depends heavily on size of the process the I/O bursts of the process the CPU bursts of the process the size of the time quantum

asked Jun 13, 2016 in Operating System by jothee Veteran (115k points) | 2.6k views

+5 votes

2 answers

30

ISRO2007-16, ISRO2009-30, ISRO2014-43
The five items: A, B, C, D, and E are pushed in a stack, one after other starting from A. The stack is popped four items and each element is inserted in a queue. The two elements are deleted from the queue and pushed back on the stack. Now one item is popped from the stack. The popped item is A B C D

asked Jun 10, 2016 in DS by jothee Veteran (115k points) | 4k views

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