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1
GATE CSE 2021 Set 1 | Question: 47
Consider a $\textit{dynamic}$ hashing approach for $4$-bit integer keys: There is a main hash table of size $4$. The $2$ least significant bits of a key is used to index into the main hash table. Initially, the main hash table entries are empty. Thereafter, when more keys are hashed ... notation)? $5,9,4,13,10,7$ $9,5,10,6,7,1$ $10,9,6,7,5,13$ $9,5,13,6,10,14$
commented
in
Algorithms
Aug 25, 2022
7.7k
views
gatecse-2021-set1
multiple-selects
algorithms
hashing
2-marks
5
answers
2
GATE CSE 2021 Set 1 | Question: 43
A relation $R$ is said to be circular if $a\text{R}b$ and $b\text{R}c$ together imply $c\text{R}a$. Which of the following options is/are correct? If a relation $S$ is reflexive and symmetric, then $S$ is an equivalence relation ... and circular, then $S$ is an equivalence relation. If a relation $S$ is transitive and circular, then $S$ is an equivalence relation.
commented
in
Set Theory & Algebra
Feb 23, 2021
8.1k
views
gatecse-2021-set1
multiple-selects
set-theory&algebra
relations
2-marks
3
answers
3
NIELIT 2016 DEC Scientist B (CS) - Section B: 23
A nonpipeline system taken $50ns$ to process a task. The same task can be processed in a six-segment pipeline with a clock cycle of $10ns.$ Determinant the speedup ration of the pipeline for $100$ tasks. What is the maximum speedup that can be achieved? $4.90,5$ $4.76,5$ $3.90,5$ $4.30,5$
commented
in
CO and Architecture
Feb 23, 2021
2.3k
views
nielit2016dec-scientistb-cs
co-and-architecture
pipelining
speedup
2
answers
4
NIELIT 2017 OCT Scientific Assistant A (IT) - Section B: 18
A pipeline is having speed up factor as $10$ and operating with efficiency of $80\%.$ What will be the number of stages in the pipeline? $10$ $8$ $13$ None
commented
in
CO and Architecture
Feb 23, 2021
961
views
nielit2017oct-assistanta-it
co-and-architecture
pipelining
1
answer
5
UGC NET CSE | October 2020 | Part 2 | Question: 43
Which of the following statements with respect to $\text{K}$-segment pipelining are true? Maximum speedup that a pipeline can provide is $k$ theoretically It is impossible to achieve maximum speed up $k$ in $k$-segment pipeline All segments in pipeline take same time in ... $\text{(i)}$ and $\text{(iii)}$ only $\text{(i), (ii)}$ and $\text{(iii)}$
commented
in
CO and Architecture
Feb 23, 2021
1.3k
views
ugcnetcse-oct2020-paper2
co-and-architecture
pipelining
2
answers
6
UGC NET CSE | October 2020 | Part 2 | Question: 7
A non-pipeline system takes $50$ns to process a task. The same task can be processed in six-segment pipeline with a clockcycle of $10$ns. Determine approximately the speedup ratio of the pipeline for $500$ tasks. $6$ $4.95$ $5.7$ $5.5$
commented
in
CO and Architecture
Feb 23, 2021
2.1k
views
ugcnetcse-oct2020-paper2
co-and-architecture
pipelining
3
answers
7
UGC NET CSE | June 2019 | Part 2 | Question: 8
Match List-I with List-II: ... ); (b) - (i); (c) - (iii); (d) - (ii) (a) - (iv); (b) - (iii); (c) - (i); (d) - (ii)
answered
in
Mathematical Logic
Feb 20, 2021
1.9k
views
ugcnetcse-june2019-paper2
propositional-logic
2
answers
8
UGC NET CSE | June 2019 | Part 2 | Question: 6
Which of the following is principal conjunctive normal form for $[(p\vee q)\wedge\ \neg p \rightarrow \neg q ]$ ? $p\ \vee \neg q$ $p \vee q $ $\neg p \vee q$ $\neg p\ \vee \neg q$
commented
in
Mathematical Logic
Feb 20, 2021
7.6k
views
ugcnetcse-june2019-paper2
propositional-logic
6
answers
9
UGC NET CSE | January 2017 | Part 2 | Question: 6
In propositional logic if $\left ( P \rightarrow Q \right )\wedge \left ( R \rightarrow S \right )$ and $\left ( P \vee R \right )$ are two premises such that $\begin{array}{c} (P \to Q) \wedge (R \to S) \\ P \vee R \\ \hline Y \\ \hline \end{array}$ $Y$ is the premise : $P \vee R$ $P \vee S$ $Q \vee R$ $Q \vee S$
answered
in
Mathematical Logic
Feb 20, 2021
2.9k
views
ugcnetjan2017ii
discrete-mathematics
propositional-logic
4
answers
10
UGC NET CSE | January 2017 | Part 2 | Question: 2
Match the following : ...
answered
in
Mathematical Logic
Feb 20, 2021
1.0k
views
ugcnetjan2017ii
mathematical-logic
3
answers
11
NIELIT 2017 July Scientist B (CS) - Section B: 16
Which of the following propositions is tautology? $(p\lor q)\to q$ $p\lor (q\to p)$ $p\lor (p\to q)$ Both (B) and (C)
answered
in
Mathematical Logic
Feb 20, 2021
722
views
nielit2017july-scientistb-cs
mathematical-logic
3
answers
12
NIELIT 2017 July Scientist B (IT) - Section B: 13
Which of the following statements is false? $(P\land Q)\lor(\sim P\land Q)\lor(P \land \sim Q)$ is equal to $\sim Q\land \sim P$ $(P\land Q)\lor(\sim P\land Q)\lor(P \wedge \sim Q)$ is equal to $Q\lor P$ ... $(P\land Q)\lor(\sim P\land Q)\lor (P \land \sim Q)$ is equal to $P\lor (Q\land \sim P)$
answered
in
Mathematical Logic
Feb 20, 2021
875
views
nielit2017july-scientistb-it
mathematical-logic
propositional-logic
5
answers
13
NIELIT 2016 MAR Scientist C - Section C: 65
In propositional logic, which of the following is equivalent to $p \rightarrow q$? $\sim p\rightarrow q$ $ \sim p \vee q$ $ \sim p \vee \sim q$ $p\rightarrow \sim q$
answered
in
Mathematical Logic
Feb 20, 2021
2.4k
views
nielit2016mar-scientistc
discrete-mathematics
mathematical-logic
2
answers
14
NIELIT 2016 MAR Scientist C - Section C: 25
Which of the following is FALSE? $Read\ \wedge as\ AND, \vee\ as\ OR, \sim as\ NOT, \rightarrow$ as one way implication and $\leftrightarrow$ as two way implication? $((x\rightarrow y)\wedge x)\rightarrow y$ $((\sim x\rightarrow y)\wedge (\sim x\wedge \sim y))\rightarrow x$ $(x\rightarrow (x\vee y))$ $((x\vee y)\leftrightarrow (\sim x\vee \sim y))$
answered
in
Mathematical Logic
Feb 20, 2021
774
views
nielit2016mar-scientistc
discrete-mathematics
mathematical-logic
4
answers
15
Fork (ACE)
main() { if(fork()>=0) { printf("*"); if(fork()==0) { printf("*"); } else{ //do nothing } printf("*"); } How many number of times “*” will be printed?
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in
Operating System
Feb 19, 2021
3.4k
views
fork-system-call
operating-system
3
answers
16
UGC NET CSE | October 2020 | Part 2 | Question: 3
Which of the following pairs of propositions are not logically equivalent? $((p \rightarrow r) \wedge (q \rightarrow r))$ and $((p \vee q) \rightarrow r)$ $p \leftrightarrow q$ and $(\neg p \leftrightarrow \neg q)$ ... and $p \leftrightarrow q$ $((p \wedge q) \rightarrow r)$ and $((p \rightarrow r) \wedge (q \rightarrow r))$
answered
in
Discrete Mathematics
Feb 19, 2021
2.3k
views
ugcnetcse-oct2020-paper2
discrete-mathematics
mathematical-logic
2
answers
17
UGC NET CSE | October 2020 | Part 2 | Question: 75
Arrange the following types of machine in descending order of complexity. SISD MIMD SIMD Choose the correct answer from the options given below: $a,b,c$ $c,b,a$ $b.c.a$ $c,a,b$
answered
in
CO and Architecture
Feb 16, 2021
1.3k
views
ugcnetcse-oct2020-paper2
co-and-architecture
machine-instruction
1
answer
18
Self Doubt in Disk Scheduling
I am presenting here 2 doubts in the form of questions.Plz give proper explanation to these : Q1 : Out of the available disk scheduling algorithms , which can be considered as the best and most practical? Q2 : In CSCAN or CLOOK , we consider ... for those requests which are on the opposite side w.r.t. initial direction of head movement and hence not yet serviced ?
commented
in
Operating System
Feb 10, 2021
971
views
operating-system
disk-scheduling
3
answers
19
NIELIT 2017 OCT Scientific Assistant A (CS) - Section B: 35
Disk request come to a disk driver for cylinders in the order $10,22,20,2,40,6$ and $38,$ at a time when the disk drive is reading from cylinder $20$. The seek time is $6\text{ ms}$ per cylinder. The total seek time, if the disk arm scheduling algorithm is first-come-first-served is $900$ ms $850$ ms $360$ ms $876$ ms
answered
in
Operating System
Feb 10, 2021
1.0k
views
nielit2017oct-assistanta-cs
operating-system
disk-scheduling
6
answers
20
UGC NET CSE | January 2017 | Part 3 | Question: 50
Consider a disk queue with I/O requests on the following cylinders in their arriving order: $6,10,12,54,97,73,128,15,44,110,34,45$. The disk head is assumed to be at cylinder $23$ and moving in the direction of decreasing number of ... in the disk is $150$. The disk head movement using SCAN -scheduling algorithm is: $172$ $173$ $227$ $228$
commented
in
Operating System
Feb 10, 2021
4.6k
views
ugcnetcse-jan2017-paper3
operating-system
disk-scheduling
3
answers
21
NIELIT 2016 MAR Scientist C - Section C: 63
The range of the numbers which can be stored in an eight bit register is $-128$ to $+127$ $-128$ to $+128$ $-999999+ \: +999999$ none of these
answered
in
Digital Logic
Feb 6, 2021
693
views
nielit2016mar-scientistc
digital-logic
register-allocation
2
answers
22
NIELIT 2016 MAR Scientist C - Section C: 40
If the input $\text{J}$ is connected through $\text{K}$ input of $\text{J-K}$, then flip-flop will behave as a D type flip-flop T type flip-flop S-R flip-flop Toggle switch
answered
in
Digital Logic
Feb 6, 2021
725
views
nielit2016mar-scientistc
digital-logic
flip-flop
3
answers
23
NIELIT 2016 MAR Scientist C - Section C: 39
If a clock with time period $“T”$ is used with $n$ stage shift register, then output of final stage will be delayed by $nT$ sec $(n-1)T$ sec $n/T$ sec $(2n-1)T$ sec
answered
in
Digital Logic
Feb 6, 2021
1.3k
views
nielit2016mar-scientistc
digital-logic
sequential-circuit
3
answers
24
NIELIT 2017 OCT Scientific Assistant A (CS) - Section D: 9
A sequential circuit using D flip-flop and logic gates is shown in Figure, where $X$ and $Y$ are the inputs and $Z$ is the output. The circuit is $\text{S-R}$ Flip-flop with inputs $X = R$ and $Y=S$ $\text{S-R}$ ... $X = J$ and $Y=K$ $\text{J-K}$ Flip-flop with inputs $X = K$ and $Y=J$
answered
in
Digital Logic
Feb 6, 2021
2.0k
views
nielit2017oct-assistanta-cs
digital-logic
sequential-circuit
flip-flop
4
answers
25
NIELIT 2017 OCT Scientific Assistant A (IT) - Section D: 10
A $4$ bit ripple counter and a $4$ bit synchronous counter are made using flip-flops having a propagation delay of $10$ ns each. If the worst case delay in the ripple counter and the synchronous counter be $R$ and $S$ respectively, then $R = 10$ ns, $S = 40$ ns $R = 40$ ns, $S = 10$ ns $R = 10$ ns, $S = 30$ ns $R = 30$ ns, $S = 10$ ns
answered
in
Digital Logic
Feb 6, 2021
944
views
nielit2017oct-assistanta-it
digital-logic
sequential-circuit
flip-flop
digital-counter
1
answer
26
nptel assignment
is given ans correct ?
commented
in
Digital Logic
Feb 6, 2021
1.0k
views
4
answers
27
UGC NET CSE | October 2020 | Part 2 | Question: 42
Simplified expression/s for following Boolean function $F(A,B,C,D)=\Sigma(0,1,2,3,6,12,13,14,15)$ is/are $A’B’+AB+A’C’D’$ $A’B’+AB+A’CD’$ $A’B’+AB+BC’D’$ $A’B’+AB+BCD’$ Choose the correct answer from the options given below: $(i)$ only $(ii)$ only $(i)$ and $(ii)$ only $(ii)$ and $(iv)$ only
answered
in
Digital Logic
Feb 6, 2021
2.0k
views
ugcnetcse-oct2020-paper2
digital-logic
k-map
5
answers
28
UGC NET CSE | January 2017 | Part 2 | Question: 18
Let $M$ and $N$ be two entities in an $E-R$ diagram with simple single value attributes. $R_{1}$ and $R_{2}$ are two relationship between $M$ and $N$, where as $R_{1}$, is one-to-many and $R_{2}$, is many-to-many. The minimum number of tables required to represent $M, N, R_{1}$, and $R_{2}$, in the relational model are ___________. $4$ $6$ $7$ $3$
answered
in
Databases
Feb 6, 2021
3.3k
views
ugcnetjan2017ii
databases
er-diagram
2
answers
29
KPGCET-CSE-2019-74
The multivalued dependencies (MVDs) can be eliminated using ______ normal form on _____ normal form relations. $1$st, $2$nd $2$nd, $3$rd $3$rd, BCNF $4$th, BCNF
answered
in
Others
Feb 6, 2021
484
views
kpgcet-cse-2019
database-normalization
databases
3
answers
30
NIELIT 2017 OCT Scientific Assistant A (CS) - Section B: 13
Given relations $R(w,x)$ and $S(y,z),$ the result of SELECT DISTINCT $w,x$ from $R,S$ $R$ has no duplicates and $S$ is non-empty $R$ and $S$ have no duplicates $S$ has no duplicates and $R$ is non-empty $R$ and $S$ has the same number of tuples
answered
in
Databases
Feb 6, 2021
835
views
nielit2017oct-assistanta-cs
databases
sql
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