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Answers by DIBAKAR MAJEE
0
votes
1
NIELIT 2016 MAR Scientist C - Section B: 5
If $f(x,y)=x^{3}y+e^{x},$ the partial derivatives, $\dfrac{\partial f}{\partial x},\dfrac{\partial f}{\partial y}$ are $3x^{2}y+1, \: x^{3}+1$ $3x^{2}y+e^{x}, \: x^{3}$ $x^{3}y+xe^{x}, \: x^{3}+e^{x}$ $2x^{2}y+\dfrac{e^{x}}{x}$
answered
in
Others
May 30, 2020
226
views
nielit2016mar-scientistc
non-gate
partial-order
1
vote
2
NIELIT 2016 MAR Scientist C - Section C: 5
A primary key, if combined with a foreign key creates parent child relationship between the tables that connect them many-to-many relationship between the tables that connect them network model between the tables that connect them none of these
answered
in
Databases
May 30, 2020
818
views
nielit2016mar-scientistc
databases
relational-model
0
votes
3
NIELIT 2016 MAR Scientist C - Section C: 6
Memory mapped displays are utilized for high resolution graphics such as maps uses ordinary memory to store the display data in character form stores the display data as individual bits are associated with electromechanical teleprinters
answered
in
Computer Graphics
May 30, 2020
480
views
nielit2016mar-scientistc
non-gate
0
votes
4
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
May 30, 2020
382
views
nielit2016mar-scientistc
digital-logic
register-allocation
0
votes
5
NIELIT 2016 MAR Scientist C - Section C: 64
How many flip-flop are needed to divide the input frequency by $64$? $4$ $5$ $6$ $8$
answered
in
Digital Logic
May 30, 2020
738
views
nielit2016mar-scientistc
digital-logic
flip-flop
0
votes
6
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
May 30, 2020
1.6k
views
nielit2016mar-scientistc
discrete-mathematics
mathematical-logic
1
vote
7
NIELIT 2016 MAR Scientist C - Section B: 2
The function $f(x)=x^{5}-5x^{4}+5x^{3}-1$ has one minima and two maxima two minima and one maxima two minima and two maxima one minima and one maxima
answered
in
Calculus
May 30, 2020
428
views
nielit2016mar-scientistc
calculus
0
votes
8
NIELIT 2016 MAR Scientist C - Section B: 3
The matrices $\begin{bmatrix} \cos\theta &-\sin \theta \\ \sin \theta & cos \theta \end{bmatrix}$ and $\begin{bmatrix} a & 0 \\ 0 & b \end{bmatrix}$ commute under the multiplication if $a=b \text{(or)} \theta =n\pi, \: n$ is an integer always never if $a\cos \theta \neq b\sin \theta$
answered
in
Linear Algebra
May 30, 2020
466
views
nielit2016mar-scientistc
linear-algebra
matrix
0
votes
9
NIELIT 2016 MAR Scientist C - Section C: 3
Every Boyce-Codd Normal Form (BCNF) decomposition is dependency preserving not dependency preserving need be dependency preserving none of these
answered
in
Databases
May 30, 2020
1.6k
views
nielit2016mar-scientistc
databases
dependency-preserving
1
vote
10
UGC NET CSE | January 2017 | Part 2 | Question: 17
Integrity constraints ensure that changes made to the database by authorized users do not result into loss of data consistency. Which of the following statement(s) is (are) true w.r.t.the examples of integrity constraints? An instructor Id. No. cannot be null, ... true. a false, b and c are true. a and b are true; c false. a,b and c are false.
answered
in
Databases
May 28, 2020
759
views
ugcnetjan2017ii
databases
sql
0
votes
11
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
May 28, 2020
1.9k
views
ugcnetjan2017ii
databases
er-diagram
1
vote
12
UGC NET CSE | June 2019 | Part 2 | Question: 39
Following table has two attributes Employee_id and Manager_id, where Employee_id is a primary key and manager_id is a foreign key referencing Employee_id with on-delete cascade: ... $(35, 20)$ only $(35, 20)$ only $(40, 45)$ and $(25, 40)$ only
answered
in
Databases
May 23, 2020
2.2k
views
ugcnetcse-june2019-paper2
referential-integrity
0
votes
13
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
answered
in
Databases
May 23, 2020
6.4k
views
isro-2020
databases
database-normalization
easy
0
votes
14
Conceptual question: What is the difference between program and process?
Conceptual question: What is the difference between program and process? any simple ,clear answer plz..
answered
in
Operating System
May 18, 2020
1.2k
views
operating-system
isro-interview-question
–1
vote
15
Which of the following process scheduling algorithm may lead to starvation?
Which of the following process scheduling algorithm may lead to starvation (1)SJF (2)SRTF (3)Priority(without preemption) (4)Priority(with preemption) a)1,2,3 b)1,2,4 c)1,3,4 d)1,2,3,4 e)1,3 f)1,4
answered
in
Operating System
May 18, 2020
20.6k
views
process-scheduling
1
vote
16
probability
Let x be the number obtained from rolling a fair dice and you toss an unbiassed coin X times. What is the probablity that X=5 given that you have obtained 3 heads from X tosses?
answered
in
Probability
May 18, 2020
614
views
conditional-probability
0
votes
17
UGC NET CSE | December 2018 | Part 2 | Question: 76
______ system call creates new process in Unix. create create new fork fork new
answered
in
Unknown Category
May 16, 2020
833
views
ugcnetcse-dec2018-paper2
0
votes
18
UGC NET CSE | December 2018 | Part 2 | Question: 77
An attribute $A$ of datatype varchar($20$) has the value $‘xyz’$, and the attribute $B$ of datatype char($20$) has the value $“lmnop”$, then the attribute $A$ has _____ spaces and attribute $B$ has ____ spaces. $3, 5$ $20, 20$ $3, 20$ $20, 5$
answered
in
Unknown Category
May 16, 2020
955
views
ugcnetcse-dec2018-paper2
0
votes
19
UGC NET CSE | December 2018 | Part 2 | Question: 78
Data warehouse contains _____ data that is never found in operational environment. Summary Encoded Encrypted Scripted
answered
in
Unknown Category
May 16, 2020
1.9k
views
ugcnetcse-dec2018-paper2
0
votes
20
UGC NET CSE | December 2018 | Part 2 | Question: 79
_______ command is used to remove a relation from SQL database. Drop table Delete table Remove table Update table
answered
in
Unknown Category
May 16, 2020
4.3k
views
ugcnetcse-dec2018-paper2
0
votes
21
UGC NET CSE | December 2018 | Part 2 | Question: 80
Which of the following statement/s is/are true ? Facebook has the world’s largest Hadoop Cluster. Hadoop $2.0$ allows live stream processing of Real time data. Choose the correct answer from the code given below : $Code :$ (i) only (ii) only Both (i) and (ii) Neither (i) nor (ii)
answered
in
Unknown Category
May 16, 2020
753
views
ugcnetcse-dec2018-paper2
0
votes
22
NIELIT 2016 DEC Scientist B (IT) - Section B: 2
Three or more devices share a link in ________ connection Unipoint Polarpoint Point to point Multipoint
answered
in
Computer Networks
May 14, 2020
676
views
nielit2016dec-scientistb-it
computer-networks
0
votes
23
NIELIT 2016 DEC Scientist B (IT) - Section B: 19
Which protocol finds the MAC address from IP address? SMTP ICMP ARP RARP
answered
in
Computer Networks
May 14, 2020
535
views
nielit2016dec-scientistb-it
computer-networks
ip-address
1
vote
24
ISRO2020-52
To send same bit sequence, $\text{NRZ}$ encoding require Same clock frequency as Manchester encoding Half the clock frequency as Manchester encoding Twice the clock frequency as Manchester encoding A clock frequency which depend on number of zeroes and ones in the bit sequence
answered
in
Computer Networks
May 7, 2020
1.4k
views
isro-2020
computer-networks
encoding
normal
0
votes
25
ISRO2020-39
The language which is generated by the grammar $S \rightarrow aSa \mid bSb \mid a \mid b$ over the alphabet of $\{a,b\}$ is the set of Strings that begin and end with the same symbol All odd and even length palindromes All odd length palindromes All even length palindromes
answered
in
Theory of Computation
May 7, 2020
1.2k
views
isro-2020
theory-of-computation
context-free-grammar
normal
0
votes
26
ISRO2020-40
Which of the following classes of languages can validate an $\text{IPv4}$ address in dotted decimal format? It is to be ensured that the decimal values lie between $0$ and $255$. RE and higher CFG and higher CSG and higher Recursively enumerable language
answered
in
Theory of Computation
May 7, 2020
1.3k
views
isro-2020
theory-of-computation
normal
identify-class-language
0
votes
27
ISRO2020-41
Minimum number of states required in DFA accepting binary strings not ending in $”101”$ is $3$ $4$ $5$ $6$
answered
in
Theory of Computation
May 7, 2020
5.0k
views
isro-2020
theory-of-computation
finite-automata
normal
0
votes
28
GATE2013 EE: GA-8
The set of values of $p$ for which the roots of the equation $3x^2+2x+p(p–1) = 0$ are of opposite sign is $(–∞, 0)$ $(0, 1)$ $(1, ∞)$ $(0, ∞)$
answered
in
Quantitative Aptitude
May 7, 2020
2.7k
views
gate2013-ee
quantitative-aptitude
quadratic-equations
1
vote
29
GATE2013 EE: GA-9
A car travels $8$ $km$ in the first quarter of an hour, $6$ $km$ in the second quarter and $16$ $km$ in the third quarter. The average speed of the car in km per hour over the entire journey is $30$ $36$ $40$ $24$
answered
in
Quantitative Aptitude
May 7, 2020
3.1k
views
gate2013-ee
speed-time-distance
quantitative-aptitude
0
votes
30
GATE2013 EE: GA-10
Find the sum to $'n'$ terms of the series $10+84+734+\dots$ $\frac{9(9^n+1)}{10} +1$ $\frac{9(9^n-1)}{8} +1$ $\frac{9(9^n-1)}{8} +n$ $\frac{9(9^n-1)}{8} +n^2$
answered
in
Quantitative Aptitude
May 7, 2020
3.5k
views
gate2013-ee
quantitative-aptitude
number-series
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