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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

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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

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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

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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

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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

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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

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

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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

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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

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

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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

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

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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

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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

–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

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

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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

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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

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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

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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

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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

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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

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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

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

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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

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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

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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

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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

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

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

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