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Recent questions tagged nielit2021dec-scientistb

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NIELIT 2021 Dec Scientist B - Section B: 43
Write Recurrence of Quick Sort in worst case. $ \text{T(n)} = \text{T (n-1)} + 1 $ $ \text{T(n)} = \text{T (n-1) + n} $ $ \text{T(n)} = 2 \text{T (n-1) + n} $ $ \text{T(n)} = \text{ T (n/3) + T (2n/2) + n} $

soujanyareddy13 asked in Others Dec 7, 2021

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NIELIT 2021 Dec Scientist B - Section B: 44
$y = 10 \cos (1800 \; \pi t) + 20 \cos (2000 \; \pi t) + 10 \cos (220 \; \pi t).$ Find the modulation index $(\mu)$ of the given wave. $0.3$ $0.5$ $0.7$ $1$

soujanyareddy13 asked in Others Dec 7, 2021

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NIELIT 2021 Dec Scientist B - Section B: 45
Match the following: ... $\text{W-3, X-1, Y-4, Z-2}$ $\text{W-3, X-1, Y-2, Z-4}$

soujanyareddy13 asked in Others Dec 7, 2021

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NIELIT 2021 Dec Scientist B - Section B: 46
_________ is the class of decision problems that can be solved by non-deterministic polynomial algorithms. $\text{NP}$ $\text{P}$ Hard Complete

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NIELIT 2021 Dec Scientist B - Section B: 47
The following circuit depicts the implementation of __________ $\text{XOR}$ Gate $\text{AND}$ Gate $\text{OR}$ Gate $\text{NAND}$ Gate

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NIELIT 2021 Dec Scientist B - Section B: 48
The following type definition is for a ____________ . type pointer $= \; \uparrow$ node node = record data : integer link : pointer end; Structure Link List Stack Doubly link list

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NIELIT 2021 Dec Scientist B - Section B: 49
Let $\text{P}(x)$ be $x$ is perfect , $\text{F}(x)$ be $x$ is your friend and the domain be all people. The statement, At least one of your friends is perfect is : $ \forall x \; \text{(F}(x) \rightarrow \text{P}(x)) $ ... $ \exists x \; \text{(F}(x) \land \text{P}(x)) $ $ \exists x \; \text{(F}(x) \rightarrow \text{P}(x)) $

soujanyareddy13 asked in Others Dec 7, 2021

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NIELIT 2021 Dec Scientist B - Section B: 50
When factorizing the Boolean equation $ \text{Y} = \text{A} \overline {\rm B} + \text{AB},$ the result will be : $\text{A} \overline {\rm B}$ $\text{AB}$ $\text{A}$ $\text{B}$

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NIELIT 2021 Dec Scientist B - Section B: 51
The ___________ of a relationship is $0$ if there is no explicit need for the relationship to occur or the relationship is optional. modality cardinality entity structured analysis

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NIELIT 2021 Dec Scientist B - Section B: 52
A language $\text{L}$ is recognizable by a turing machine $\text{M}$ if and only if $\text{L}$ is a _____________ language. Type $0$ Type $1$ Type $2$ Type $3$

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NIELIT 2021 Dec Scientist B - Section B: 53
The ____________ enables the software engineer to develop models of the information domain and functional domain at the same time. data flow diagram state transition diagram control specification activity diagram

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NIELIT 2021 Dec Scientist B - Section B: 54
An analog signal having $3 \; \text{kHz}$ bandwidth is sampled at $1.5$ times the Nyquist rate. The successive samples are statistically independent. Each sample is quantized into one of $256$ equally likely levels. The information rate of the source is : $3 \; \text{kbps}$ $72 \; \text{kbps}$ $256 \; \text{kbps}$ $9 \; \text{kbps}$

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NIELIT 2021 Dec Scientist B - Section B: 55
$100$ elements can be sorted in $100 \; \text{sec}$ using bubble sort. In $400 \; \text{sec},$ approximately ____________ elements can be sorted. $100$ $200$ $300$ $400$

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NIELIT 2021 Dec Scientist B - Section B: 56
The maximum number of times the decrease key operation performed in Dijkstra’s algorithm will be equal to ______________. Total number of vertices Total number of edges Number of vertices $ – 1$ Number of edges $ – 1$

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NIELIT 2021 Dec Scientist B - Section B: 57
____________ is the elapsed time between the time a program or job is submitted and the time when it is completed. Response time Turnaround time Waiting time Throughput

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NIELIT 2021 Dec Scientist B - Section B: 58
The determinant of matrix $\begin{bmatrix} 0&p-q &p-r \\ q-p&0 &q-r \\ r-p&r-q &0 \end{bmatrix}$ is ____________ . $0$ $(p-q)(q-r)(r-p)$ $pqr$ $3pqr$

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NIELIT 2021 Dec Scientist B - Section B: 59
A wireless network interface controller can work in _______________ . infrastructure mode ad–hoc mode both infrastructure mode and ad-hoc mode $\text{WDS}$ mode

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NIELIT 2021 Dec Scientist B - Section B: 60
$\text{ABC}{\ast}+$ is the postfix form of : $ \text{A}\;{\ast}\; \text{B} + \text{C} $ $ \text{A}{\ast} + \text{BC} $ $ \text{A} + \text{B}\;{\ast}\; \text{C} $ none of these

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NIELIT 2021 Dec Scientist B - Section B: 61
If developer wants to transform model into source code is also known as _____________ . Backward Testing / Engineering Forward Engineering Forward Testing Reverse Engineering

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20

NIELIT 2021 Dec Scientist B - Section B: 62
The number of $4 \; \text{digit}$ numbers which contain not more than two different digits is : $576$ $567$ $513$ $504$

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NIELIT 2021 Dec Scientist B - Section B: 63
In Software Modeling $\text{‘IS A’}$ represents ______________ relationship. Aggregation Over loading Inheritance Design Patterns

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NIELIT 2021 Dec Scientist B - Section B: 64
The operating system stores an ____________ in order to decide to which user to grant which access rights to which file $?$ File allocation table Process control block Access control matrix File control matrix

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23

NIELIT 2021 Dec Scientist B - Section B: 65
Assume that a $\text{DBA}$ issued the following create table command : create table $\text{A (Aid, $\dots\dots$)}$ storage $\text{ (initial 20480, next 20480, maxextents 8, minextents 3, pctincrease 0)};$ How many bytes of disk space will be allocated to this ... $20480 \; \text{bytes}$ $61,440 \; \text{bytes}$ $8 \; \text{bytes}$

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NIELIT 2021 Dec Scientist B - Section B: 66
Dijkstra’s Algorithm cannot be applied on _____________ . Directed and weighted graphs Graphs having negative weight function Unweighted graph Undirected and unweighted graphs

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NIELIT 2021 Dec Scientist B - Section B: 67
The channel capacity of a noise free channel having $\text{M}$ symbols is given by : $\text{M}$ $2^{\text{M}}$ $\log \text{M}$ None of these

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NIELIT 2021 Dec Scientist B - Section B: 68
Which type of illustration lists the functionality of whole project $?$ $\text{DFD} – 0$ Class Diagram Use case Diagram State Diagram

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NIELIT 2021 Dec Scientist B - Section B: 69
If the size of the logical address space is $2^{m}$ and the page size is $2^{n}$ addressing units, then the high order $\text{m-n bits}$ of a logical address designate the _____________ . offset page no frame no physical address

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28

NIELIT 2021 Dec Scientist B - Section B: 70
A bottom-up parser generates _______________ . Rightmost derivation Rightmost derivation in reverse Leftmost derivation Leftmost derivation in reverse

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NIELIT 2021 Dec Scientist B - Section B: 71
Let the random variable $\text{X}$ has a mixed distributions with probability $\text{P(X = 0)} = \alpha,$ ... of $\text{X}$ is $\alpha,$ then the value of $4 \alpha + \beta$ is equal to : $9/2$ $6$ $9$ $5/2$

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NIELIT 2021 Dec Scientist B - Section B: 72
What is the value of $f(4)$ using the following $C$ code: int f(int k){ if(k<3) return k; else return f(k-1) * f(k-2) + f(k-3); } $5$ $6$ $7$ $8$

soujanyareddy13 asked in Programming Dec 7, 2021

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