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1
GATE CSE 1999 | Question: 4
Let $G$ be a finite group and $H$ be a subgroup of $G$. For $a \in G$, define $aH=\left\{ah \mid h \in H\right\}$. Show that $|aH| = |bH|.$ Show that for every pair of elements $a, b \in G$, either $aH = bH$ or $aH$ and $bH$ are disjoint. Use the above to argue that the order of $H$ must divide the order of $G.$
commented
in
Set Theory & Algebra
Oct 3, 2020
3.2k
views
gate1999
set-theory&algebra
group-theory
descriptive
proof
4
answers
2
GATE CSE 2016 Set 1 | Question: 18
Which one of the following regular expressions represents the language: the set of all binary strings having two consecutive $0$'s and two consecutive $1$'s? $(0+1 )^ *0011 (0+1)^* +(0+1)^*1100(0+1)^*$ $(0+1)^* (00(0+1)^*11+11(0+1)^*00)(0+1)^*$ $(0+1)^*00(0+1)^* + (0+1)^*11 (0+1)^*$ $00(0+1)^*11 +11(0+1)^*00$
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Theory of Computation
Oct 3, 2020
20.7k
views
gatecse-2016-set1
theory-of-computation
regular-expression
normal
4
answers
3
ISRO2020-23
The post-order traversal of binary tree is $\text{ACEDBHIGF}$. The pre-order traversal is $\text{A B C D E F G H I}$ $\text{F B A D C E G I H}$ $\text{F A B C D E G H I}$ $\text{A B D C E F G I H}$
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DS
Jun 30, 2020
18.6k
views
isro-2020
data-structures
binary-tree
tree-traversal
normal
13
answers
4
Minimum number of tables to represent ER-Diagram
How many minimum relations required for given ER diagram ?
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in
Databases
Apr 6, 2020
8.8k
views
er-diagram
databases
er-to-relational
relational
7
answers
5
GATE CSE 2020 | Question: 51
Consider the following language. $L = \{{ x\in \{a,b\}^*\mid}$number of $a$’s in $x$ divisible by $2$ but not divisible by $3\}$ The minimum number of states in DFA that accepts $L$ is _________
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in
Theory of Computation
Feb 25, 2020
13.4k
views
gatecse-2020
numerical-answers
theory-of-computation
regular-language
2-marks
4
answers
6
GATE CSE 2020 | Question: GA-9
Two straight lines are drawn perpendicular to each other in $X-Y$ plane. If $\alpha$ and $\beta$ are the acute angles the straight lines make with the $\text{X-}$ axis, then $\alpha + \beta$ is ________. $60^{\circ}$ $90^{\circ}$ $120^{\circ}$ $180^{\circ}$
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Quantitative Aptitude
Feb 20, 2020
8.0k
views
gatecse-2020
quantitative-aptitude
geometry
cartesian-coordinates
2-marks
4
answers
7
GATE CSE 2020 | Question: 55
Consider a $\textsf{TCP}$ connection between a client and a server with the following specifications; the round trip time is $6$ ms, the size of the receiver advertised window is $50$ KB, slow-start threshold at the client is $32$ KB, and the ... the size of the congestion window (in $\text{KB}$) at time $t+60$ ms after all acknowledgements are processed is _______
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in
Computer Networks
Feb 13, 2020
14.2k
views
gatecse-2020
numerical-answers
computer-networks
tcp
2-marks
5
answers
8
GATE CSE 2020 | Question: 37
Consider a schedule of transactions $T_1$ and $T_2$ ...
answered
in
Databases
Feb 13, 2020
11.7k
views
gatecse-2020
databases
transaction-and-concurrency
2-marks
5
answers
9
GATE CSE 2020 | Question: 17
Let $\mathcal{R}$ be the set of all binary relations on the set $\{1,2,3\}$. Suppose a relation is chosen from $\mathcal{R}$ at random. The probability that the chosen relation is reflexive (round off to $3$ decimal places) is ______.
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in
Set Theory & Algebra
Feb 13, 2020
9.1k
views
gatecse-2020
numerical-answers
probability
relations
1-mark
9
answers
10
GATE CSE 2020 | Question: 16
What is the worst case time complexity of inserting $n$ elements into an empty linked list, if the linked list needs to be maintained in sorted order? $\Theta(n)$ $\Theta(n \log n)$ $\Theta ( n)^{2}$ $\Theta(1)$
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DS
Feb 12, 2020
26.4k
views
gatecse-2020
linked-list
1-mark
3
answers
11
GATE CSE 2020 | Question: 13
Consider a relational database containing the following schemas. ... WHERE pno = P4' GROUP BY pno) ; The number of rows returned by the above SQL query is $4$ $5$ $0$ $2$
answered
in
Databases
Feb 12, 2020
13.4k
views
gatecse-2020
databases
sql
1-mark
6
answers
12
GATE CSE 2020 | Question: 12
Consider the following statements about process state transitions for a system using preemptive scheduling. A running process can move to ready state. A ready process can move to running state. A blocked process can move to running state. A blocked process can move to ready state. ... TRUE? I, II, and III only II and III only I, II, and IV only I, II, III and IV only
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in
Operating System
Feb 12, 2020
12.7k
views
gatecse-2020
operating-system
process-scheduling
1-mark
easy
2
answers
13
GATE CSE 2020 | Question: GA-6
Goods and Services Tax (GST) is an indirect tax introduced in India in $2017$ that is imposed on the supply of goods and services, and it subsumes all indirect taxes except few. It is a destination-based tax imposed on goods and services used, ... indirect taxes. GST does not have a component specific to UT. GST is imposed at the point of usage of goods and services.
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in
Verbal Aptitude
Feb 12, 2020
3.2k
views
gatecse-2020
verbal-aptitude
verbal-reasoning
passage-reading
2-marks
3
answers
14
ISRO2020-66
The following circuit compares two $2$-bit binary numbers, $X$ and $Y$ represented by $X_1X_0$ and $Y_1Y_0$ respectively. ($X_0$ and $Y_0$ represent Least Significant Bits) Under what conditions $Z$ will be $1$? $X>Y$ $X<Y$ $X=Y$ $X!=Y$
answer edited
in
Digital Logic
Feb 9, 2020
3.9k
views
isro-2020
digital-logic
digital-circuits
circuit-output
normal
3
answers
15
ISRO2020-12
If $ABCD$ is a $4$-bit binary number, then what is the code generated by the following circuit? BCD code Gray code $8421$ code Excess-$3$ code
answer edited
in
Digital Logic
Feb 9, 2020
3.1k
views
isro-2020
digital-logic
combinational-circuit
circuit-output
normal
2
answers
16
ISRO2020-11
Minimum number of NAND gates required to implement the following binary equation $Y = (\overline{A}+\overline{B})(C+D)$ $4$ $5$ $3$ $6$
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in
Digital Logic
Feb 9, 2020
5.3k
views
isro-2020
digital-logic
combinational-circuit
circuit-output
normal
3
answers
17
GATE CSE 2019 | Question: 19
Consider the grammar given below: $S \rightarrow Aa$ $A \rightarrow BD$ $B \rightarrow b \mid \epsilon $ $D \rightarrow d \mid \epsilon $ Let $a,b,d$ and $\$ be indexed as follows:$\begin{array}{|l|l|l|l|} \hline a & b & d & \$ \ ... $)$ , then the answer should be $3210$)
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in
Compiler Design
Feb 6, 2020
20.1k
views
gatecse-2019
numerical-answers
compiler-design
parsing
1-mark
4
answers
18
GATE CSE 2019 | Question: 5
Let $U = \{1, 2, \dots , n\}$ Let $A=\{(x, X) \mid x \in X, X \subseteq U \}$. Consider the following two statements on $\mid A \mid$. $\mid A \mid = n2^{n-1}$ $\mid A \mid = \Sigma_{k=1}^{n} k \begin{pmatrix} n \\ k \end{pmatrix}$ Which of the above statements is/are TRUE? Only I Only II Both I and II Neither I nor II
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Combinatory
Feb 6, 2020
11.5k
views
gatecse-2019
engineering-mathematics
discrete-mathematics
combinatory
1-mark
0
answers
19
MadeEasy Test Series 2019: CO & Architecture - Machine Instruction
Q.A stack based CPU executes the instruction.Memory location 500 contains 0x88 and memory location 700 contains 0x37.The stack pointer is at 0x003F. The instructions are as follows: I1:PUSH 500 I2:PUSH 700 I3:ADD ... after execution instructions c)Memory location 600 contains 0xBF after execution instructions d)Both (a) and (c)
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in
CO and Architecture
Jan 28, 2020
1.5k
views
co-and-architecture
machine-instruction
made-easy-test-series
4
answers
20
ISRO2020-7
Consider a $5$- segment pipeline with a clock cycle time $20$ ns in each sub operation. Find out the approximate speed-up ratio between pipelined and non-pipelined system to execute $100$ instructions. (if an average, every five cycles, a bubble due to data hazard has to be introduced in the pipeline) $5$ $4.03$ $4.81$ $4.17$
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CO and Architecture
Jan 23, 2020
7.3k
views
isro-2020
co-and-architecture
pipelining
normal
6
answers
21
GATE CSE 2018 | Question: GA-10
A six sided unbiased die with four green faces and two red faces is rolled seven times. Which of the following combinations is the most likely outcome of the experiment? Three green faces and four red faces. Four green faces and three red faces. Five green faces and two red faces. Six green faces and one red face
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Quantitative Aptitude
Jan 22, 2020
14.8k
views
gatecse-2018
quantitative-aptitude
probability
normal
2-marks
2
answers
22
GATE2019 EE: GA-3
The missing number in the given sequence $343,1331,$_____$,4913$ is $3375$ $2744$ $2197$ $4096$
answer edited
in
Quantitative Aptitude
Jan 22, 2020
4.0k
views
gate2019-ee
general-aptitude
quantitative-aptitude
sequence-series
1
answer
23
GATE2011 GG: GA-10
In order to develop to full potential, a baby needs to be physically able to respond to the environment. It can be inferred from the passage that Full physical potential is needed in order for a baby to be able to respond to the environment. ... be developed to its full potential. A physically able baby needs to develop its full potential in order to respond to its environment.
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in
Verbal Aptitude
Jan 21, 2020
1.1k
views
gate2011-gg
logical-reasoning
passage-reading
4
answers
24
GATE2011 AG: GA-10
The horse has played a little known but very important role in the field of medicine. Horses were injected with toxins of diseases until their blood built up immunities. Then a serum was made from their blood. Serums to fight with ... that horses were given immunity to diseases generally quite immune to diseases given medicines to fight toxins given diphtheria and tetanus serums
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Verbal Aptitude
Jan 21, 2020
2.5k
views
general-aptitude
verbal-aptitude
gate2011-ag
passage-reading
18
answers
25
UGC NET CSE | November 2017 | Part 3 | Question: 9
If every non-key attribute is functionally dependent on the primary key, then the relation is in ________ First normal form Second normal form Third normal form Fourth normal form
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Databases
Jan 21, 2020
6.2k
views
ugcnetcse-nov2017-paper3
database-normalization
12
answers
26
ISRO2020-50
If every non-key attribute functionally dependent on the primary key, then the relation will be in First normal form Second normal form Third normal form Fourth Normal form
commented
in
Databases
Jan 20, 2020
9.1k
views
isro-2020
databases
database-normalization
easy
2
answers
27
Segmented Paging
Consider a process of 200 KB which has 2 segments each segment size is 256 KB ,Calculate overhead in segmented paging.The page table entry is 4B, segment table entry is 2 B ,Page size is 2KB.
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in
Operating System
Jan 20, 2020
1.6k
views
segmentation
2
answers
28
ISRO2020-56
For the distributions given below: Which of the following is correct for the above distributions? Standard deviation of $A$ is significantly lower than standard deviation of $B$ Standard deviation of $A$ is slightly lower than standard deviation of $B$ Standard ... $B$ Standard deviation of $A$ is significantly higher than standard deviation of $B$
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in
Probability
Jan 13, 2020
2.0k
views
isro-2020
probability
standard-deviation
normal
4
answers
29
ISRO2020-57
The hardware implementation which provides mutual exclusion is Semaphores Test and set instructions Both options None of the options
asked
in
Operating System
Jan 13, 2020
5.1k
views
isro-2020
operating-system
semaphore
mutual-exclusion
normal
5
answers
30
ISRO2020-55
If $x+2y=30$, then $\left(\dfrac{2y}{5}+\dfrac{x}{3} \right) + \left (\dfrac{x}{5}+\dfrac{2y}{3} \right)$ will be equal to $8$ $16$ $18$ $20$
asked
in
Quantitative Aptitude
Jan 13, 2020
2.9k
views
isro-2020
quantitative-aptitude
easy
lcm-hcf
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