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18 answers

1

GATE CSE 2017 Set 2 | Question: 44
Two transactions $T_1$ and $T_2$ are given as $T_1:r_1(X)w_1(X)r_1(Y)w_1(Y)$ $T_2:r_2(Y)w_2(Y)r_2(Z)w_2(Z)$ where $r_i(V)$ denotes a $\textit{read}$ operation by transaction $T_i$ on a variable $V$ and $w_i(V)$ denotes a ... by transaction $T_i$ on a variable $V$. The total number of conflict serializable schedules that can be formed by $T_1$ and $T_2$ is ______

commented in Databases Feb 2, 2018

70.9k views

4 answers

2

GATE CSE 1990 | Question: 1-iv-a
A $32$-bit floating-point number is represented by a $7$-bit signed exponent, and a $24$-bit fractional mantissa. The base of the scale factor is $16,$ The range of the exponent is ___________

commented in Digital Logic Jan 27, 2018

7.9k views

7 answers

3

GATE CSE 2008 | Question: 40
The minimum number of comparisons required to determine if an integer appears more than $\frac{n}{2}$ times in a sorted array of $n$ integers is $\Theta(n)$ $\Theta(\log n)$ $\Theta(\log^*n)$ $\Theta(1)$

commented in Algorithms Jan 24, 2018

36.4k views

5 answers

4

GATE CSE 2007 | Question: 23
Which of the following graphs has an Eulerian circuit? Any $k$-regular graph where $k$ is an even number. A complete graph on $90$ vertices. The complement of a cycle on $25$ vertices. None of the above

commented in Graph Theory Jan 23, 2018

25.2k views

9 answers

5

GATE CSE 2017 Set 1 | Question: 3
Let $c_{1}.....c_{n}$ be scalars, not all zero, such that $\sum_{i=1}^{n}c_{i}a_{i}$ = 0 where $a_{i}$ are column vectors in $R^{n}$. Consider the set of linear equations $Ax = b$ ... has a unique solution at $x=J_{n}$ where $J_{n}$ denotes a $n$-dimensional vector of all 1. no solution infinitely many solutions finitely many solutions

commented in Linear Algebra Jan 20, 2018

20.3k views

6 answers

6

GATE CSE 2017 Set 1 | Question: GA-9
Arun, Gulab, Neel and Shweta must choose one shirt each from a pile of four shirts coloured red, pink, blue and white respectively. Arun dislikes the colour red and Shweta dislikes the colour white. Gulab and Neel like all the colours. In how many different ways ... the shirts so that no one has a shirt with a colour he or she dislikes? $21$ $18$ $16$ $14$

commented in Quantitative Aptitude Jan 20, 2018

10.0k views

0 answers

7

doubt extern variable here they initialized it is it valid ?
extern int num = 10; // is it valid ??

commented in Programming in C Jan 19, 2018

601 views

0 answers

8

Self Doubt
the sequence is shown, the element at the lowest level?

commented in Algorithms Jan 18, 2018

399 views

0 answers

9

algorithms
You are given a set of n nuts and another set of n bolts such that they form n distinct pairs of matching nuts and bolts, i.e., each of the bolts go into one nut only. What will the number of comparisons to matching operation conducted in an effective manner ... is trying to fit a bolt into a nut and thereby concluding whether they are of equal size, or find out which is greater in size)

commented in Algorithms Jan 17, 2018

329 views

0 answers

10

ACE Test Series
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commented in Databases Jan 17, 2018

307 views

0 answers

11

Virtualgate
Why here implementation A is wrong.I feel it is correct.

commented in Programming in C Jan 16, 2018

427 views

1 answer

12

virtualgate
Here query is not correct if there are two persons with higher rating?Am I correct?

commented in Databases Jan 16, 2018

574 views

1 answer

13

Digital circuit

commented in Digital Logic Jan 16, 2018

486 views

0 answers

14

Programming Question

commented in Programming in C Jan 14, 2018

575 views

0 answers

15

Rank of node: dependacy graph
please describe in detail I have no idea how to find rank of the node?

closed in Compiler Design Jan 13, 2018

352 views

0 answers

16

Speedup In pipelining
Actually, In this problem what will, we consider getting the answer(upper bound or lower bound) and why?

asked in CO and Architecture Jan 13, 2018

711 views

1 answer

17

Static variable doubt

asked in Programming in C Jan 13, 2018

357 views

2 answers

18

Network IP Addressing
IP : 199. 166.15.119 SubNet Mask: 255. 255. 255. 240 Then Find the (i) SubNet ID ? (ii) SubNet No. ? (iii) First host of the SubNet ? (iv) Last host of the SubNet? (v) third host of the first SubNet? I found ambiguity in ans person to person .

commented in Computer Networks Jan 12, 2018

1.1k views

2 answers

19

TEST SERIES
PLEASE GIVE THE CORRECT ANSWER

commented in Digital Logic Jan 12, 2018

1.2k views

2 answers

20

MadeEasy Test Series 2018: Graph Theory - Graph Coloring
Consider the following graph: Which of the following will represents the chromatic number of the graph? answer given is 4. Please provide a detailed solution.

answered in Graph Theory Jan 11, 2018

760 views

8 answers

21

#of variables in SSA
Consider the following code segment: c=b+a e=c-a f=c*e h=c+a i=h+f The minimum number of $\color{blue} {total}$ and $\color{blue} {temporary }$ variable required to convert the above code segment to static single assignment form are ________

commented in Compiler Design Jan 11, 2018

1.9k views

4 answers

22

Hashing (Test Series)
Consider an initially empty hash table of length 10. Following set of keys are inserted using open addressing with hash function h(k) = k mod 10 and linear probing. 0 1 91 2 2 3 13 4 24 5 12 6 62 7 77 8 82 9 The number of different insertion sequence of the key values using the given hash function and linear probing will result in the hash table shown in above __________.

commented in DS Jan 11, 2018

3.4k views

0 answers

23

CO: Cache Memory

commented in CO and Architecture Jan 11, 2018

468 views

1 answer

24

Algorithm Question

commented in Algorithms Jan 11, 2018

1.0k views

0 answers

25

commented in CO and Architecture Jan 11, 2018

525 views

0 answers

26

CO: Addressing Mode Question

closed in CO and Architecture Jan 11, 2018

2.6k views

0 answers

27

What is the meaning of specialized and generalized entity?

asked in Databases Jan 11, 2018

377 views

0 answers

28

Test series
Plzzz explain...

commented in Algorithms Jan 9, 2018

631 views

1 answer

29

minimum no. of states in dfa in which no. of "a" divisible by 8
I can use 4 state dfa for no. of a should be divisible by 4 then minimum = 4 , or we have to construct dfa with 8 states ??

answered in Theory of Computation Jan 9, 2018

788 views

1 answer

30

automata
How many states in dfa of X= { (a+b)* where no of a is divisible by 4 and 8}

commented in Theory of Computation Jan 9, 2018

765 views