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1

Peripheral devices : CAO
Consider READ and WRITE bits: a) Both are written by CPU b) Both are written by peripheral c) READ bit is written by peripheral while WRITE bit is written by CPU d) WRITE bit is written by peripheral while READ bit is written by CPU

commented in CO and Architecture May 12, 2017

842 views

1 answer

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cache memory
Array A contains 256 elements of 4 bytes each. Its first element is stored at physical address 4,096. Array B contains 512 elements of 4 bytes each. Its first element is stored at physical address 8,192. Assume that only arrays A and B can be cached in an initially empty, ... will be written to memory if the cache has a write-through policy? (a) 0 (b) 256 (c) 1,024 (d) 2,048

commented in CO and Architecture May 12, 2017

524 views

2 answers

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cache memory
Suppose after analyzing a new cache design, you discover that the cache has far too many conflict misses and this needs to be resolved. You know that you must increase associativity in order to decrease the number of cache misses. What are the implications of increasing associativity? (a) Slower cache access time (b) Increase index bits (c) Increase block size (d) All of these

commented in CO and Architecture May 12, 2017

3.0k views

2 answers

4

Finite Automata
How to convert Regular Grammar to Deterministic Finite Automata directly?

commented in Theory of Computation Apr 28, 2017

680 views

2 answers

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write locks are released after last operation of transaction but before its commit ! explain
Somebody please explain this i am not able to understand please given an example of transaction or explain in hindi what the question and answer is please explain somebody please Here i am posting the Entire ... please explain which choice is correct and which is wrong I am not able to understand it.

commented in Databases Mar 17, 2017

1.6k views

2 answers

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maximum records in join operation ME mock
Consider the following relation: R (A B C) A primary key with 100 tuples. S (E F G) E primary key with 50 tuples. T (AE D) AE primary key with 80 tuples. U (D G H) H primary key with 10 tuples. The maximum number of possible records in the result of R⋈S⋈T⋈U _______.

commented in Databases Mar 8, 2017

685 views

1 answer

7

ISRO 2007- ECE Vectors
A unit vector perpendicular to the vectors a= 2i –3j + k and b=i+j-2k , is a) (1/ √ 3 ) (–i+j+k) b) (1/ √ 3 )(i+j- k) c) (1/ √ 3 )(i + j+k) d) (i+j+k)

commented in Linear Algebra Mar 4, 2017

579 views

1 answer

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GATE IT 2005 | Question: 67
A company maintains records of sales made by its salespersons and pays them commission based on each individual's total sales made in a year. This data is maintained in a table with following schema: salesinfo = (salespersonid, ... running concurrently throughout Execute T3 followed by T2; T1 running concurrently throughout Execute T3 followed by T2 followed by T1

commented in Databases Mar 4, 2017

7.9k views

5 answers

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ISRO2007-18
The number of digit 1 present in the binary representation of $3 \times 512 + 7 \times 64 + 5 \times 8 + 3$ is 8 9 10 12

answered in Digital Logic Mar 3, 2017

12.1k views

0 answers

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ISRO 2006-ECE AND OR gates
In the given network of AND and OR gates f can be written as: a) X0 X1 X2 .....Xn + X1 X2 . ....Xn + X2 X3 ....Xn.... Xn b) X0 X1 + X2 + X3 +....... +Xn-1 . Xn C) X0+X1+ X2+ .......+ Xn d) X0 X1 X3........ Xn-1 + X2+X3+X5 ......... Xn-1 + ........+ Xn-2 + Xn-1 +Xn

commented in Digital Logic Mar 3, 2017

707 views

7 answers

11

Partial dependency
The number of partial dependencies in a relation R{X,Y,V,U,Z} with FD set F={X->YZ, Z->V, V->XY} is ____

commented in Databases Mar 3, 2017

2.9k views

11 answers

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GATE CSE 2014 Set 1 | Question: 47
A function $f(x)$ is continuous in the interval $[0,2]$. It is known that $f(0) = f(2) = -1$ and $f(1) = 1$. Which one of the following statements must be true? There exists a $y$ in the interval $(0,1)$ such that $f(y) = f(y+1)$ For every $y$ ... the function in the interval $(0,2)$ is $1$ There exists a $y$ in the interval $(0,1)$ such that $f(y)$ = $-f(2-y)$

commented in Calculus Jan 26, 2017

21.0k views

3 answers

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GATE CSE 2009 | Question: 25
$\int^{\pi/4}_0 (1-\tan x)/(1+\tan x)\,dx $ $0$ $1$ $\ln 2$ $1/2 \ln 2$

commented in Calculus Jan 14, 2017

5.8k views

4 answers

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GATE CSE 1995 | Question: 2.17
Let $A$ be the set of all non-singular matrices over real number and let $*$ be the matrix multiplication operation. Then $A$ is closed under $*$ but $\langle A, *\rangle$ is not a semigroup. $\langle A, *\rangle$ is a semigroup but not a monoid. $\langle A, * \rangle$ is a monoid but not a group. $\langle A, *\rangle$ is a a group but not an abelian group.

commented in Set Theory & Algebra Jan 13, 2017

9.9k views

9 answers

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GATE CSE 2015 Set 1 | Question: 29
Consider a LAN with four nodes $S_1, S_2, S_3,$ and $S_4$. Time is divided into fixed-size slots, and a node can begin its transmission only at the beginning of a slot. A collision is said to have occurred if more than ... respectively. The probability of sending a frame in the first slot without any collision by any of these four stations is__________________.

commented in Computer Networks Jan 12, 2017

13.4k views

7 answers

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GATE IT 2008 | Question: 29
If $M$ is a square matrix with a zero determinant, which of the following assertion (s) is (are) correct? S1: Each row of $M$ can be represented as a linear combination of the other rows S2: Each column of $M$ can be represented as a linear combination of the other columns S3 ... solution S4: $M$ has an inverse $S3$ and $S2$ $S1$ and $S4$ $S1$ and $S3$ $S1, S2$ and $S3$

commented in Linear Algebra Jan 12, 2017

9.6k views

5 answers

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GATE CSE 2007 | Question: 25
Let A be a $4 \times 4$ matrix with eigen values -5,-2,1,4. Which of the following is an eigen value of the matrix$\begin{bmatrix} A & I \\ I & A \end{bmatrix}$, where $I$ is the $4 \times 4$ identity matrix? $-5$ $-7$ $2$ $1$

commented in Linear Algebra Jan 10, 2017

16.6k views

1 answer

18

How to remember Closure table

commented in Theory of Computation Nov 13, 2016

2.1k views

4 answers

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GATE CSE 2004 | Question: 10
Consider the grammar rule $E \rightarrow E1 - E2$ for arithmetic expressions. The code generated is targeted to a CPU having a single user register. The subtraction operation requires the first operand to be in the register. If $E1$ and $E2$ do ... Evaluation of $E1$ and $E2$ should necessarily be interleaved Order of evaluation of $E1$ and $E2$ is of no consequence

commented in Compiler Design Nov 13, 2016

13.5k views

2 answers

20

probability
A bag contains 12 pairs of socks .four socks are picked up at random.Find the probability that there is at least one pair

commented in Mathematical Logic Nov 12, 2016

782 views

1 answer

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GATE CSE 2016 Set 2 | Question: 52
Consider the following database table named water_schemes: ... total_avg (capacity) as select avg (capacity) from total select name from total, total_avg where total.capacity ≥ total_avg.capacity

commented in Databases Nov 3, 2016

11.0k views

1 answer

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commented in Databases Oct 27, 2016

826 views

1 answer

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GATE CSE 2016 Set 1 | Question: 06
Consider the Boolean operator # with the following properties : $x \# 0 = x, x \# 1=\overline{x}, x \# x = 0$ and $x \# \overline{x} = 1.$ Then $x\#y$ is equivalent to $x\overline{y}+\overline{x}y$ $x\overline{y}+ \overline{x} \; \overline{y}$ $\overline{x}y+xy$ $xy+\overline{x} \; \overline{y}$

commented in Digital Logic Oct 16, 2016

7.2k views

1 answer

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prime implicants
Find all prime implicants and all essential prime implicants for... $F(A,B,C,D)=Σ(1,3,4,5,10,11,12,13,14,15)$

commented in Digital Logic Oct 16, 2016

1.9k views

1 answer

25

#Digital
No.of half adder and full adder required to add 1 +1 +1 +1 Draw the circuit...

commented in Digital Logic Oct 15, 2016

508 views

3 answers

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MADE EASY TEST SERIES
What will be the output of multiplexer shown below ?

commented in Digital Logic Oct 15, 2016

894 views

4 answers

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GATE CSE 2014 Set 3 | Question: 37
Suppose you want to move from $0$ to $100$ on the number line. In each step, you either move right by a unit distance or you take a shortcut. A shortcut is simply a pre-specified pair of integers $i,\:j \:\text{with}\: i <j$. Given a shortcut $(i,j)$, if you ... $y$ and $z$ be such that $T(9) = 1 + \min(T(y),T(z))$. Then the value of the product $yz$ is _____.

commented in Algorithms Oct 12, 2016

10.0k views

1 answer

28

ISRO2014-67
What is the time complexity for the following C module? Assume that $n>0$. int module(int n) { if (n == 1) return 1; else return (n + module(n-1)); } $O(n)$ $O(\log n)$ $O(n^2)$ $O(n!)$

commented in Algorithms Oct 5, 2016

4.9k views

1 answer

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GATE CSE 2015 Set 3 | Question: 48
Consider the following C program: #include<stdio.h> int main() { int i, j, k = 0; j=2 * 3 / 4 + 2.0 / 5 + 8 / 5; k-=--j; for (i=0; i<5; i++) { switch(i+k) { case 1: case 2: printf("\n%d", i+k); ... : printf("\n%d", i+k); default: printf("\n%d", i+k); } } return 0; } The number of times printf statement is executed is _______.

commented in Programming in C Oct 4, 2016

22.3k views

4 answers

30

GATE IT 2006 | Question: 37
For a state machine with the following state diagram the expression for the next state $S^+$ in terms of the current state $S$ and the input variables $x$ and $y$ is $S^+ = S' . y' + S . x$ $S^+ = S. x . y' + S' . y . x'$ $S^+ = x . y'$ $S^+ = S' . y + S . x'$

commented in Theory of Computation Sep 29, 2016

8.3k views