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Recent activity by sid1221
2
answers
1
Arun Sharma # progression
In an infinite geometric progression ,each term is equal to $2$ times the sum of the terms that follow . If the first term of the series is $8$ ,find the sum of the series?
In an infinite geometric progression ,each term is equal to $2$ times the sum of the terms that follow . If the first term of the series is $8$ ,find the sum of the serie...
1.8k
views
asked
May 23, 2018
Quantitative Aptitude
general-aptitude
quantitative-aptitude
progression
+
–
3
answers
2
ISRO2018-55
Let us assume that transaction $T1$ has arrived before transaction $T2$. Consider the schedule $s=r1(A);r2(B): w2(A); w1(B)$ Which of the following is true? Allowed under basic timestamp protocol. Not allowed under basic timestamp protocols because $T1$ is rolled back. Not allowed under basic timestamp protocols because $T2$ is rolled back. None of these
Let us assume that transaction $T1$ has arrived before transaction $T2$. Consider the schedule $s=r1(A);r2(B): w2(A); w1(B)$Which of the following is true?Allowed under ...
6.9k
views
commented
Apr 22, 2018
Databases
isro2018
databases
transaction-and-concurrency
+
–
3
answers
3
ISRO2018-54
The set of attributes $X$ will be fully functionally dependent on the set of attributes $Y$ if the following conditions are satisfied. $X$ is functionally dependent on $Y$ $X$ is not functionally dependent on any subset of $Y$ Both (a) and (b) None of these
The set of attributes $X$ will be fully functionally dependent on the set of attributes $Y$ if the following conditions are satisfied.$X$ is functionally dependent on $Y$...
3.8k
views
commented
Apr 22, 2018
Databases
isro2018
databases
database-normalization
+
–
1
answer
4
Mathematical logic
How to solve these Question.
How to solve these Question.
1.0k
views
commented
Mar 7, 2018
Mathematical Logic
mathematical-logic
discrete-mathematics
+
–
2
answers
5
GATE CSE 1999 | Question: 2.25
Which of the following is/are correct? An SQL query automatically eliminates duplicates An SQL query will not work if there are no indexes on the relations SQL permits attribute names to be repeated in the same relation None of the above
Which of the following is/are correct?An SQL query automatically eliminates duplicatesAn SQL query will not work if there are no indexes on the relationsSQL permits attri...
20.0k
views
commented
Jan 22, 2018
Databases
gate1999
databases
sql
easy
+
–
4
answers
6
GATE CSE 2013 | Question: 14
Assume that source S and destination D are connected through two intermediate routers labeled R. Determine how many times each packet has to visit the network layer and the data link layer during a transmission from S to D. Network layer - $4$ times and Data link ... $4$ times and Data link layer - $6$ times Network layer - $2$ times and Data link layer - $6$ times
Assume that source S and destination D are connected through two intermediate routers labeled R. Determine how many times each packet has to visit the network layer and t...
17.9k
views
commented
Jan 22, 2018
Computer Networks
gatecse-2013
computer-networks
network-layering
normal
+
–
1
answer
7
Hamiltonian Graph
A complement of a cyclic graph on 5 vertices , has an Hamiltonian circuit . (True/False)
A complement of a cyclic graph on 5 vertices , has an Hamiltonian circuit . (True/False)
1.3k
views
commented
Jan 16, 2018
Mathematical Logic
graph-theory
discrete-mathematics
+
–
4
answers
8
GATE CSE 1994 | Question: 2.9
The Hasse diagrams of all the lattices with up to four elements are ________ (write all the relevant Hasse diagrams)
The Hasse diagrams of all the lattices with up to four elements are ________ (write all the relevant Hasse diagrams)
4.5k
views
commented
Jan 16, 2018
Set Theory & Algebra
gate1994
set-theory&algebra
lattice
normal
fill-in-the-blanks
+
–
3
answers
9
TIFR CSE 2012 | Part B | Question: 5
Let $R$ be a binary relation over a set $S$. The binary relation $R$ is called an equivalence relation if it is reflexive transitive and symmetric. The relation is called partial order if it is reflexive, transitive and anti symmetric. ... $\sqsubseteq $ is neither a partial order nor an equivalence relation.
Let $R$ be a binary relation over a set $S$. The binary relation $R$ is called an equivalence relation if it is reflexive transitive and symmetric. The relation is called...
2.0k
views
commented
Jan 16, 2018
Set Theory & Algebra
tifr2012
set-theory&algebra
partial-order
+
–
1
answer
10
MadeEasy Test Series: Combinatory - Permutations And Combinations
Number of solutions are there of x+y+z=17 in positive integers are_________ Here in this do we have to take constraints of x>=1,y>=1,z>=1?
Number of solutions are there of x+y+z=17 in positive integers are_________Here in this do we have to take constraints of x>=1,y>=1,z>=1?
963
views
commented
Jan 15, 2018
Combinatory
made-easy-test-series
engineering-mathematics
discrete-mathematics
combinatory
+
–
4
answers
11
GATE CSE 1987 | Question: 2d
State whether the following statements are TRUE or FALSE: The union of two equivalence relations is also an equivalence relation.
State whether the following statements are TRUE or FALSE:The union of two equivalence relations is also an equivalence relation.
5.5k
views
commented
Jan 15, 2018
Set Theory & Algebra
gate1987
set-theory&algebra
relations
true-false
+
–
3
answers
12
GATE IT 2006 | Question: 24
What is the cardinality of the set of integers $X$ defined below? $X=\{n \mid 1 \leq n ≤ 123, n$ is not divisible by either $2$, $3$ or $5\}$ $28$ $33$ $37$ $44$
What is the cardinality of the set of integers $X$ defined below?$X=\{n \mid 1 \leq n ≤ 123, n$ is not divisible by either $2$, $3$ or $5\}$$28$$33$$37$$44$
6.5k
views
commented
Jan 14, 2018
Set Theory & Algebra
gateit-2006
set-theory&algebra
normal
set-theory
+
–
6
answers
13
GATE CSE 2015 Set 2 | Question: GA-7
Four branches of a company are located at $\text{M, N, O}$ and $\text{P. M}$ is north of $\text{N}$ at a distance of $4\;\text{km; P}$ is south of $\text{O}$ at a distance of $2\;\text{km; N}$ is southeast of $\text{O}$ by $1\;\text{km}$. What is the distance between $\text{M}$ and $\text{P}$ in $\text{km}$? $5.34$ $6.74$ $28.5$ $45.49$
Four branches of a company are located at $\text{M, N, O}$ and $\text{P. M}$ is north of $\text{N}$ at a distance of $4\;\text{km; P}$ is south of $\text{O}$ at a distan...
13.5k
views
commented
Jan 14, 2018
Analytical Aptitude
gatecse-2015-set2
analytical-aptitude
normal
direction-sense
+
–
3
answers
14
GATE CSE 2013 | Question: 13
Using public key cryptography, $X$ adds a digital signature σ to message $M$, encrypts $\langle M, \sigma \rangle$, and sends it to $Y$, where it is decrypted. Which one of the following sequences of keys is used for the operations? Encryption: $X's$ ... : $X's$ private key followed by $Y's$ public key; Decryption: $Y's$ private key followed by $X's$ public key
Using public key cryptography, $X$ adds a digital signature σ to message $M$, encrypts $\langle M, \sigma \rangle$, and sends it to $Y$, where it is decrypted. Which one...
9.1k
views
commented
Jan 13, 2018
Computer Networks
gatecse-2013
computer-networks
network-security
normal
out-of-gate-syllabus
+
–
4
answers
15
TIFR CSE 2017 | Part B | Question: 1
A vertex colouring with three colours of a graph $G=(V, E)$ is a mapping $c: V \rightarrow \{R, G, B\}$ so that adjacent vertices receive distinct colours. Consider the following undirected graph. How many vertex colouring with three colours does this graph have? $3^9$ $6^3$ $3 \times 2^8$ $27$ $24$
A vertex colouring with three colours of a graph $G=(V, E)$ is a mapping $c: V \rightarrow \{R, G, B\}$ so that adjacent vertices receive distinct colours. Consider the f...
4.8k
views
commented
Jan 13, 2018
Graph Theory
tifr2017
graph-theory
graph-coloring
+
–
4
answers
16
GATE CSE 1992 | Question: 14a
If $G$ is a group of even order, then show that there exists an element $a≠e$, the identity in $G$, such that $a^2 = e$.
If $G$ is a group of even order, then show that there exists an element $a≠e$, the identity in $G$, such that $a^2 = e$.
7.2k
views
commented
Jan 13, 2018
Set Theory & Algebra
gate1992
set-theory&algebra
group-theory
normal
descriptive
proof
+
–
4
answers
17
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 __________.
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 1912...
3.4k
views
commented
Jan 11, 2018
DS
data-structures
hashing
+
–
4
answers
18
GATE CSE 2014 Set 3 | Question: 13
Suppose depth first search is executed on the graph below starting at some unknown vertex. Assume that a recursive call to visit a vertex is made only after first checking that the vertex has not been visited earlier. Then the maximum possible recursion depth (including the initial call) is _________.
Suppose depth first search is executed on the graph below starting at some unknown vertex. Assume that a recursive call to visit a vertex is made only after first checkin...
17.2k
views
commented
Jan 10, 2018
Algorithms
gatecse-2014-set3
algorithms
graph-algorithms
numerical-answers
normal
graph-search
+
–
0
answers
19
Data Dependencies and Hazards CO
I 1 : R 1 = 100 I 2 : R 1 = R 2 + R 4 I 3 : R 2 = R 4 + 25 I 4 : R 4 = R 1 + R 3 I 5 : R 1 = R 1 + 30 Calculate sum of (WAR, RAW and WAW) dependencies the above instructions. I'm getting 8 : RAW -2 WAW -3 WAR - 3 given is 6. RAW -0 WAW -3 WAR - 3 I4 - I2 and I5 - I2 are not RAW hazards ??
I 1 : R 1 = 100I 2 : R 1 = R 2 + R 4I 3 : R 2 = R 4 + 25I 4 : R 4 = R 1 + R 3I 5 : R 1 = R 1 + 30 Calculate sum of (WAR, RAW and WAW) dependencies the above instructions....
905
views
commented
Jan 9, 2018
CO and Architecture
co-and-architecture
data-hazards
+
–
1
answer
20
GATE2011 GG: GA-8
Three sisters $(R, S,$ and $T)$ received a total of $24$ toys during Christmas. The toys were initially divided among them in a certain proportion. Subsequently, $R$ gave some toys to $S$ which doubled the share of $S$. Then $S$ in turn gave some of her ... exchanges, the three sisters were left with equal number of toys. How many toys did $R$ have originally? $8$ $9$ $11$ $12$
Three sisters $(R, S,$ and $T)$ received a total of $24$ toys during Christmas. The toys were initially divided among them in a certain proportion. Subsequently, $R$ gave...
3.5k
views
commented
Jan 8, 2018
Analytical Aptitude
gate2011-gg
logical-reasoning
analytical-aptitude
+
–
0
answers
21
Maths: Probability
Consider that, there are 365 days in a year, what is the probability that exactly two out of ten people are born on the same day?
Consider that, there are 365 days in a year, what is the probability that exactly two out of ten people are born on the same day?
501
views
commented
Jan 8, 2018
Mathematical Logic
probability
engineering-mathematics
+
–
5
answers
22
ISI2012-PCB-CS-2a
A machine $\mathcal{M}$ has the following five pipeline stages; their respective time requirements in nanoseconds (ns) are given within parentheses: $F$-stage - instruction fetch ($9$ ns), $D$-stage - instruction decode and register fetch ($3$ ns), $X$-stage ... $3$rd instruction needs a $1$ - cycle stall before the $X$-stage. Calculate the CPU time in seconds for completing $P$.
A machine $\mathcal{M}$ has the following five pipeline stages; their respective time requirements in nanoseconds (ns) are given within parentheses:$F$-stage — instruct...
2.6k
views
commented
Jan 8, 2018
CO and Architecture
descriptive
isi2012-pcb-cs
co-and-architecture
pipelining
+
–
0
answers
23
MadeEasy Test Series: CO & Architecture - Data Dependency
I'm getting 6,1,2 but the answer given is 5,1,2
I'm getting 6,1,2 but the answer given is 5,1,2
455
views
commented
Jan 7, 2018
CO and Architecture
made-easy-test-series
co-and-architecture
data-dependency
+
–
1
answer
24
TCP Congestion Control
Consider an instance of TCP’s Additive Increase Multiplicative Decrease (AIMD) algorithm where the window size at the start of slow start phase is 2 KB and the threshold at the start of first transmission is 24 KB. Assume that 3 duplicate ACK are received during the 5th transmission what is the congestion window size at the end of 10th transmission?
Consider an instance of TCP’s Additive Increase Multiplicative Decrease (AIMD) algorithm where the window size at the start of slow start phase is 2 KB and the threshol...
1.4k
views
commented
Jan 6, 2018
Computer Networks
computer-networks
congestion-control
+
–
3
answers
25
#testseries
Consider a system having ‘N ’ resources of the same type. ‘N’ resources are shared between 3 processes P1 , P2 and P3 which have individual peak demand of 4, 6 and 8. The minimum value of ‘N’ to ensure that deadlock will never occur, if it is given the maximum requirement for combination of P1 and P3 is 9 are__________.
Consider a system having ‘N ’ resources of the same type. ‘N’ resources are shared between 3 processes P1 , P2 and P3 which have individual peak demand of 4, 6 an...
2.3k
views
commented
Jan 6, 2018
Operating System
operating-system
deadlock-prevention-avoidance-detection
+
–
0
answers
26
c programming
#include<stdio.h> int main() { char arr[5][7][6]; char *p[5][7][6]; printf("%d\t", (unsigned)(arr+1)-(unsigned)arr); printf("%d", (unsigned)(p+1)-(unsigned)p); }
#include<stdio.h>int main(){char arr[5][7][6];char *p[5][7][6];printf("%d\t", (unsigned)(arr+1)-(unsigned)arr);printf("%d", (unsigned)(p+1)-(unsigned)p);}
433
views
commented
Jan 4, 2018
0
answers
27
Congestion control
Consider the effect of using slow start on a line with a 10-msec round-trip time and no congestion. The receive window is 24KB and the maximum segment size is 2KB. How long does it take before the first full window can be sent?
Consider the effect of using slow start on a line with a 10-msec round-trip time and no congestion. The receive window is 24KB and the maximum segment size is 2KB. How lo...
262
views
commented
Jan 4, 2018
1
answer
28
Congestion Control
Please Confirm whether 10 MSS is correct or not ?
Please Confirm whether 10 MSS is correct or not ?
659
views
commented
Jan 4, 2018
Computer Networks
computer-networks
congestion-control
tcp
+
–
0
answers
29
decidability
215
views
commented
Jan 3, 2018
2
answers
30
GATE2011 GG: GA-6
The number of solutions for the following system of inequalities is $X_1≥ 0$ $X_2 ≥ 0$ $X_1+ X_2 ≤ 10$ $2X_1+ 2X_2 ≥ 22$ $0$ infinite $1$ $2$
The number of solutions for the following system of inequalities is$X_1≥ 0$$X_2 ≥ 0$$X_1+ X_2 ≤ 10$$2X_1+ 2X_2 ≥ 22$$0$infinite$1$$2$
1.4k
views
commented
Jan 2, 2018
Quantitative Aptitude
gate2011-gg
quantitative-aptitude
system-of-equations
+
–
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