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Recent activity by Exynos
5
answers
1
TIFR CSE 2012 | Part A | Question: 20
There are $1000$ balls in a bag, of which $900$ are black and $100$ are white. I randomly draw $100$ balls from the bag. What is the probability that the $101$st ball will be black? $9/10$ More than $9/10$ but less than $1$. Less than $9/10$ but more than $0$. $0$ $1$
There are $1000$ balls in a bag, of which $900$ are black and $100$ are white. I randomly draw $100$ balls from the bag. What is the probability that the $101$st ball wil...
2.9k
views
commented
Feb 24, 2021
Probability
tifr2012
probability
conditional-probability
+
–
2
answers
2
GATE CSE 2021 Set 1 | Question: 41
An $articulation$ $point$ in a connected graph is a vertex such that removing the vertex and its incident edges disconnects the graph into two or more connected components. Let $T$ be a $\text{DFS}$ tree obtained by doing $\text{DFS}$ ... is a descendent of $u$ in $T$, then all paths from $x$ to $y$ in $G$ must pass through $u$.
An $articulation$ $point$ in a connected graph is a vertex such that removing the vertex and its incident edges disconnects the graph into two or more connected component...
14.0k
views
answered
Feb 21, 2021
DS
gatecse-2021-set1
multiple-selects
data-structures
tree
2-marks
+
–
4
answers
3
GATE CSE 2021 Set 2 | Question: 33
A bag has $r$ red balls and $b$ black balls. All balls are identical except for their colours. In a trial, a ball is randomly drawn from the bag, its colour is noted and the ball is placed back into the bag along with another ball of the same colour. Note that the number of ...
A bag has $r$ red balls and $b$ black balls. All balls are identical except for their colours. In a trial, a ball is randomly drawn from the bag, its colour is noted and ...
10.9k
views
answered
Feb 21, 2021
Probability
gatecse-2021-set2
probability
normal
2-marks
+
–
6
answers
4
GATE CSE 2007 | Question: 62, UGCNET-June2014-II: 47
Which one of the following statements is $\text{FALSE}$? Any relation with two attributes is in $\text{BCNF}$ A relation in which every key has only one attribute is in $\text{2NF}$ A prime attribute can be transitively dependent on ... a $\text{3 NF}$ relation A prime attribute can be transitively dependent on a key in a $\text{BCNF}$ relation
Which one of the following statements is $\text{FALSE}$?Any relation with two attributes is in $\text{BCNF}$A relation in which every key has only one attribute is in $\t...
24.4k
views
commented
Jan 2, 2021
Databases
gatecse-2007
databases
database-normalization
normal
ugcnetcse-june2014-paper2
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–
13
answers
5
GATE CSE 2016 Set 2 | Question: 50
A file system uses an in-memory cache to cache disk blocks. The miss rate of the cache is shown in the figure. The latency to read a block from the cache is $1$ ms and to read a block from the disk is $10$ ms. Assume that the cost ... in multiples of $10$ MB. The smallest cache size required to ensure an average read latency of less than $6$ ms is _________ MB.
A file system uses an in-memory cache to cache disk blocks. The miss rate of the cache is shown in the figure. The latency to read a block from the cache is $1$ ms and to...
15.1k
views
comment edited
Jul 24, 2020
CO and Architecture
gatecse-2016-set2
co-and-architecture
cache-memory
normal
numerical-answers
+
–
9
answers
6
GATE CSE 2006 | Question: 20, ISRO2015-17
Consider the following log sequence of two transactions on a bank account, with initial balance $12000,$ that transfer $2000$ to a mortgage payment and then apply a $5\%$ interest. T1 start T1 B old $=12000$ new $=10000$ ... $3$ because transaction T1 has committed We can apply redo and undo operations in arbitrary order because they are idempotent
Consider the following log sequence of two transactions on a bank account, with initial balance $12000,$ that transfer $2000$ to a mortgage payment and then apply a $5\%$...
28.1k
views
commented
Jul 22, 2020
Databases
gatecse-2006
databases
transaction-and-concurrency
normal
isro2015
+
–
4
answers
7
GATE CSE 2002 | Question: 1.20
With regards to the expressive power of the formal relational query languages, which of the following statements is true? Relational algebra is more powerful than relational calculus Relational algebra has the same power as relational calculus Relational algebra has the same power as safe relational calculus None of the above
With regards to the expressive power of the formal relational query languages, which of the following statements is true?Relational algebra is more powerful than relation...
7.2k
views
commented
Jun 10, 2020
Databases
gatecse-2002
databases
relational-calculus
normal
+
–
6
answers
8
GATE CSE 1995 | Question: 1.17
A binary tree $T$ has $n$ leaf nodes. The number of nodes of degree $2$ in $T$ is $\log_2 n$ $n-1$ $n$ $2^n$
A binary tree $T$ has $n$ leaf nodes. The number of nodes of degree $2$ in $T$ is$\log_2 n$$n-1$$n$$2^n$
36.1k
views
answered
Apr 25, 2020
DS
gate1995
data-structures
binary-tree
normal
+
–
6
answers
9
GATE CSE 2001 | Question: 2.23
$R(A,B,C,D)$ is a relation. Which of the following does not have a lossless join, dependency preserving $BCNF$ decomposition? $A \rightarrow B, B \rightarrow CD$ $A \rightarrow B, B \rightarrow C, C \rightarrow D$ $ AB \rightarrow C, C \rightarrow AD$ $A \rightarrow BCD$
$R(A,B,C,D)$ is a relation. Which of the following does not have a lossless join, dependency preserving $BCNF$ decomposition?$A \rightarrow B, B \rightarrow CD$$A \righta...
52.3k
views
commented
Apr 21, 2020
Databases
gatecse-2001
databases
database-normalization
normal
+
–
7
answers
10
GATE CSE 1999 | Question: 2.2
Two girls have picked $10$ roses, $15$ sunflowers and $15$ daffodils. What is the number of ways they can divide the flowers among themselves? $1638$ $2100$ $2640$ None of the above
Two girls have picked $10$ roses, $15$ sunflowers and $15$ daffodils. What is the number of ways they can divide the flowers among themselves?$1638$$2100$$2640$None of th...
12.3k
views
commented
Aug 14, 2019
Combinatory
gate1999
combinatory
normal
+
–
9
answers
11
GATE CSE 2007 | Question: 34
Suppose only one multiplexer and one inverter are allowed to be used to implement any Boolean function of $n$ variables. What is the minimum size of the multiplexer needed? $2^n$ line to $1$ line $2^{n+1}$ line to $1$line $2^{n-1}$ line to $1$line $2^{n-2}$ line to $1$line
Suppose only one multiplexer and one inverter are allowed to be used to implement any Boolean function of $n$ variables. What is the minimum size of the multiplexer neede...
31.6k
views
answered
Jul 13, 2019
Digital Logic
gatecse-2007
digital-logic
normal
multiplexer
+
–
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