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Answers by Devshree Dubey

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Show that the set of functions from the positive integers to the set {0,1,2,3,4,5,6,7,8,9} is uncountable.
answered Feb 21, 2019 in Set Theory & Algebra 242 views
1 vote
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The delays of NOR gates, Multiplexer and Inverters are 2ns, 1.5ns and 1ns respectively. If all the inputs P, Q, R, S and T are applied at the same time instant, Then the Maximum propagation delay (in ns) of the circuit is _______________
answered Aug 12, 2018 in Digital Logic 1.7k views
1 vote
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A signal processor software is expected to operate for 91.25 days after repair, and the mean software repair time is expected to be 5 minutes. Then, the availability of the software is: (1) 96.9862% (2) 97.9862% (3) 98.9962% (4) 99.9962%
answered Jun 29, 2018 in Others 1k views
3 votes
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Perform window to viewport transformation for the point (20,15). Assume that $(X_{wmin}\ ,Y_{wmin} )$ is $(0,0)$ ; $(X_{wmax}\ ,Y_{wmax} )$ is $(100,100)$ ; $(X_{vmin}\ ,Y_{vmin} )$ is $(5,5)$ ; $(X_{vmax}\ ,Y_{vmax} )$ is $(20,20)$ . The value of $x$ and $y$ in the viewport is $x=4,y=4$ $x=3,y=3$ $x=8,y=7.25$ $x=3,y=4$
answered Apr 23, 2018 in Computer Graphics 2k views
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Help me understand this statement from Theory of Computation by Peter Linz "If between two vertices vi and vj there is any walk labeled w, then there must be some walk labeled w of length no more than Λ + (1 + Λ) |w|, where Λ is the number of ... of the walk." I am also having difficulty in understand extended transition function for an nfa , would be really helpful if someone could explain that.
answered Apr 22, 2018 in Theory of Computation 650 views
1 vote
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Design a counter with the following repeated binary sequence: 0, 4, 2, 1, 6. Use T flip- flops.
answered Feb 17, 2018 in Digital Logic 299 views
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Hi Guys, How one should prepare for UGC - NET exam computer science ? Lot of stuff is available but if someone can point out some good study material and source for all previous year question paper then it will be really helpful ? I think for Paper 2 some help could be taken from GATE study material but from where one should prepare for Paper 1 ?
answered Jan 28, 2018 in CBSE/UGC NET 2.3k views
1 vote
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The woman waited nervously in line. When the counter was empty, she carefully unloaded her items from her cart. Lines creased her forehead as if to show the calculations ringing up in her head. Finally, the cashier began ringing up the items as the woman clutched her purse. ... groceries. (C) The woman might have forgotten her purse (D) The woman want to play hide and seek game with the cashier.
answered Jan 13, 2018 in Verbal Ability 278 views
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Given $U=\{1, 2, 3, 4, 5, 6, 7 \} \\ A =\{(3, 0.7), (5, 1), (6, 0.8) \}$ then $\tilde{A}$ will be: (where $\sim \rightarrow$ complement) $\{(4, 0.7), (2, 1), (1, 0.8)\}$ $\{(4, 0.3), (5, 0), (6, 0.2)\}$ $\{(1, 1), (2, 1), (3, 0.3), (4, 1), (6, 0.2), (7, 1) \}$ $\{(3, 0.3), (6, 0.2)\}$
answered Nov 22, 2017 in Set Theory & Algebra 2.5k views
5 votes
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Consider the following program skeleton and below figure which shows activation records of procedures involved in the calling sequence. $p \rightarrow s \rightarrow q \rightarrow r \rightarrow q.$Write the access links of the activation records to enable correct access and variables in the procedures from ... q; procedure r; begin q end r; begin r end q; procedure s; begin q end s; begin s end p;
answered Aug 25, 2017 in Compiler Design 2k views
2 votes
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A person sells a chair at a loss of 10%. If he had sold it at a profit of 5%, he would have earned 75 . What is the c.p of the chair. Why this is not working 5=75/c.p x100.
answered May 24, 2017 in Numerical Ability 121 views
1 vote
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Three times the first of three consecutive odd numbers is 3 more than twice the third.what is the third integer ? A.15 B. 9 C. 11 D.5
answered May 19, 2017 in Numerical Ability 217 views
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Three times the first of three consecutive odd numbers is 3 more than twice the third.what is the third integer ? A.15 B. 9 C. 11 D.5
answered May 18, 2017 in Numerical Ability 217 views
2 votes
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why getch( ), putch( ),getchar() Putchar( ) etc function in c exist when we have printf and scanf functions ? What is importance of these functions??
answered May 17, 2017 in Programming 1.4k views
1 vote
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I have read that in Linux, user can do CTRL+D and it's leads to equivalent, but I have an question that user has to press CTRL+D or write CTRL+D in program like a character.
answered May 14, 2017 in Programming 113 views
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This is the statement for Divisibility test of 11. Add and subtract digits in an alternating pattern (add digit, subtract next digit, add next digit, etc). Then check if that answer is divisible by 11. This is the proof that I found : If x is divisible by 11, then x ≡ 0 (mod 11). Thus ... -------------------------------------------- Now, I didn't understand the proof starting from But.
answered May 12, 2017 in Mathematical Logic 269 views
2 votes
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Folks, as the global or static variables are stored in data section of process and their scope is throughout the program, but once the main() function returns or complete execution or when whole program is executed and activation record of main() is ... section? Does global variable stays or the whole process is deleted including global variables from memory once the program ran to completion?
answered May 10, 2017 in Programming 260 views
0 votes
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Which of the following grammars are not phase-structured? (a) regular (b) context-free (c) context-sensitive (d) none of the above
answered May 8, 2017 in Compiler Design 233 views
0 votes
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#include <stdio.h> int*fun() { intx=5; return&x; } int main(){ int*p=fun(); fflush(stdin); printf("%d",*p); return0; } Please explain this code, how's it's working line by line. Thank you!
answered May 5, 2017 in Programming 233 views
2 votes
21
If $n$ number of variables how many 'dual' expression is possible?
answered May 4, 2017 in Digital Logic 123 views
1 vote
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what is fading in cn ? please explain from very basics to detail
answered May 3, 2017 in Computer Networks 69 views
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what are the design issues of transport layer?
answered May 1, 2017 in Computer Networks 49 views
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