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DRDO CSE 2022 Paper 2 | Question: 16
Suppose the $\text{IP}$ addresses of $\text{A}$ and $\text{B}$ are $10.105.1.113$ and $10.105.1.91,$ respectively. They both use the same netmask $\mathrm{N}$. Which of the following values of $\mathrm{N}$ given below should not be used if $\text{A}$ ... to the same network, and why? $255.255 .255 .0$ $255.255 .255 .128$ $255.255 .255 .192$ $255.255 .255 .224$
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Computer Networks
Dec 15, 2022
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drdocse-2022-paper2
computer-networks
ip-address
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DRDO CSE 2022 Paper 2 | Question: 18
For the following two $16$-bit messages, find the Internet checksum: $0001 \; 1000 \; 0001 \; 0010$ $1011 \; 1000 \; 1011 \; 0011$
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Computer Networks
Dec 15, 2022
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admin
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drdocse-2022-paper2
computer-networks
crc-polynomial
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1
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3
DRDO CSE 2022 Paper 2 | Question: 19
Both the payload and $2\text{D}$ (even) parity bits are shown below. Some of these bit(s) have been flipped. Indicate the row and column of the flipped bit(s) in format (col, row); e.g., top left bit is $(0,0)$. \[\begin{array}{l} 1000 \; 0001 \; 1111 \; ... 0100 \; 0011 \; 0011 \text { | } 0 \\ \overline{0110 \;0111\; 0101\; 1001 \text { | } 1} \\ \end{array}\]
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Computer Networks
Dec 15, 2022
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admin
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drdocse-2022-paper2
computer-networks
crc-polynomial
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1
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0
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4
DRDO CSE 2022 Paper 1 | Question: 32 (b)
Let us suppose we are given an integer $\text{N}$ in binary representation. Let us consider the following algorithm to check if $\text{N}$ is a prime. For every $i$ such that $2 \leq i \leq\lceil\sqrt{\text{N}}\rceil$ ... of the running time in terms of the input size? (Assume hypothetically that division can be done in $\text{O}(1)$ time).
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Algorithms
Dec 15, 2022
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admin
224
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drdocse-2022-paper1
algorithms
time-complexity
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vote
1
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5
DRDO CSE 2022 Paper 1 | Question: 1
Compute $\left[M M^{T}\right]^{-1}$ for an orthogonal matrix where \[M=\left[\begin{array}{lll} \frac{1}{\sqrt{2}} & \frac{2}{\sqrt{2}} & \frac{-2}{\sqrt{2}} \\ \frac{-2}{\sqrt{2}} & \frac{2}{\sqrt{2}} & \frac{1}{\sqrt{2}} \\ \frac{2}{\sqrt{2}} & \frac{1}{\sqrt{2}} & \frac{2}{\sqrt{2}} \end{array}\right] .\]
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Linear Algebra
Dec 15, 2022
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admin
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drdocse-2022-paper1
linear-algebra
matrix
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6
DRDO CSE 2022 Paper 1 | Question: 17
Total number of functions from set $B$ to set $A$ with $n$ and $m$ elements, respectively are ___________.
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Set Theory & Algebra
Dec 15, 2022
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drdocse-2022-paper1
set-theory&algebra
functions
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fill-in-the-blanks
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1
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7
DRDO CSE 2022 Paper 1 | Question: 21
For decimal number $-30$, the $16$-bit $2$'s complement representation is _________
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Digital Logic
Dec 15, 2022
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drdocse-2022-paper1
digital-logic
number-representation
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fill-in-the-blanks
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8
DRDO CSE 2022 Paper 1 | Question: 30
If the prefix traversal order of a tree is $*+\mathbf{a} \mathbf{b}-\mathbf{c} \mathbf{d}$. Then, find the equivalent postfix order of the that tree.
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DS
Dec 15, 2022
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drdocse-2022-paper1
data-structures
tree-traversal
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