16 votes
2
Consider a schedule of transactions $T_1$ and $T_2$:$\begin{array}{|c|c|c|c|c|c|c|c|c|c|c|} \hline T_1 & RA & & & RC & & WD & & WB & \text{Commit} & \\ \hline T_2 & & R...
41 votes
4
Consider a relational database containing the following schemas.$$\overset{\text{Catalogue}} {\begin{array}{|c|c|c|} \hline \underline{\text{sno}} & \underline{\text{pno}...
31 votes
7
7 votes
10
The probability that two friends are born in the same month is ____ ?$1/6$$1/12$$1/144$$1/24$
14 votes
17
A unit vector perpendicular to both the vectors $a=2i-3j+k$ and $b=i+j-2k$ is:$\frac{1}{\sqrt{3}} (i+j+k)$$\frac{1}{3} (i+j-k)$$\frac{1}{3} (i-j-k)$$\frac{1}{\sqrt{3}} (i...
0 votes
18
59 votes
20
6 votes
22
Assume that you are flipping a fair coin, i.e. probability of heads or tails is equal. Then the expected number of coin flips required to obtain two consecutive heads for...
25 votes
24
7 votes
25
2 votes
26
What are the eigenvalues of the following $2\times 2$ matrix? $$\left( \begin{array}{cc} 2 & -1\\ -4 & 5\end{array}\right)$$$-1$ and $1$$1$ and $6$$2$ and $5$$4$ and $-1$...
15 votes
29
Consider a $4$-way set associative cache (initially empty) with total $16$ cache blocks. The main memory consists of $256$ blocks and the request for memory blocks are in...
7 votes
30
For a set-associative Cache organization, the parameters are as follows:$$\begin{array}{|c|l|} \hline \text {$t _c$} & \text{Cache Access Time }\\\hline \text{$t _m$} &...