Recent activity

+2 votes

7 answers

1

GATE2019-50
What is the minimum number of $2$-input NOR gates required to implement a $4$ -variable function expressed in sum-of-minterms form as $f=\Sigma(0,2,5,7, 8, 10, 13, 15)?$ Assume that all the inputs and their complements are available. Answer: _______

commented 11 minutes ago in Digital Logic by Vipin Rai Junior (525 points) | 3k views

0 votes

3 answers

2

DS and programming
#include <stdio.h> int arr[] = { 10, 20, 30, 40, 50 }; static int count ; inc() { return ++count; } int main() { arr[count++]=inc(); printf("%d ", arr[count]); printf("%d ", arr[0]); } i am thinking it will print 30 2

commented 37 minutes ago in Programming by Shaik Masthan Veteran (55.8k points) | 131 views

+4 votes

1 answer

3

UGCNET-Dec2014-II-39
For the implementation of a paging scheme, suppose the average process size be $x$ bytes, the page size be $y$ bytes, and each page entry requires $z$ bytes. The optimum page size that minimizes the total overhead due to the page table and the internal fragmentation loss is given by $\frac{x}{2}$ $\frac{xz}{2}$ $\sqrt{2xz}$ $\frac{\sqrt{xz}}{2}$

commented 1 hour ago in Operating System by rajatmyname Active (1.3k points) | 1.4k views

+4 votes

1 answer

4

ISRO2007-28
The level of aggregation of information required for operational control is Detailed Aggregate Qualitative None of the above

commented 2 hours ago in IS&Software Engineering by vinay chauhan Junior (765 points) | 1.8k views

0 votes

0 answers

5

Computer Network
20 Gbps link each user using 5Gbps when active<20% time the user is active> Max. users that the network can be used by? Using circuit switching?

asked 2 hours ago in Computer Networks by manisha11 Active (1.9k points) | 9 views

0 votes

0 answers

6

#programming
https://www.sanfoundry.com/c-program-checks-strings-anagrams/ what is the meaning of line number 32?

commented 3 hours ago in Programming by himgta Active (3.6k points) | 26 views

0 votes

1 answer

7

ISI 2017 PCB C3 (A)
Let R(A, B, C) be a relation with primary key (A) and S(A, D, E) a relation with primary key (A, D). Each of the relations has n tuples. If the number of tuples in R natural join S is m, then determine the number of tuples in R natural left outer join S.

commented 9 hours ago in Databases by Priyadrasta Raut (313 points) | 84 views

0 votes

0 answers

8

Karumanchi
There is a singly linked list. We have a pointer to a particular node(it is not tail node). what is the time and space complexity required to delete this node? my approach is... As there is no previous pointer so we traverse the list from the starting to just ... complexity as O(n) and space complexity O(1). but in the book the time complexity is mentioned O(1) where am I going wrong?

commented 9 hours ago in DS by Meet2698 (121 points) | 66 views

+1 vote

2 answers

9

gate 2019 answer key
Gate answer key says the answer of 2 Input NOR Gate as 4.

answered 11 hours ago in GATE by mradul (59 points) | 486 views

+2 votes

6 answers

10

GATE2019-46
Let $T$ be a full binary tree with $8$ leaves. (A full binary tree has every level full.) Suppose two leaves $a$ and $b$ of $T$ are chosen uniformly and independently at random. The expected value of the distance between $a$ and $b$ in $T$ (ie., the number of edges in the unique path between $a$ and $b$) is (rounded off to $2$ decimal places) _________.

answer edited 12 hours ago in DS by pratekag (457 points) | 3.7k views

0 votes

1 answer

11

Predictive
Construct the predictive parsing table for the grammar and tell whether the grammar is LL(1) or not S --> (L) / a L --> L, S / S

answered 13 hours ago in Compiler Design by Priyadrasta Raut (313 points) | 21 views

0 votes

1 answer

12

Data Hazards
Find the data hazards(RAW,WAW,WAR) in the given instructions

commented 13 hours ago in CO & Architecture by Priyadrasta Raut (313 points) | 70 views

0 votes

0 answers

13

Data Communications AND Networking by BEHROUZ A. FOROUZAN (5th Edition)
The LLC provides a single link-layer control protocol for all IEEE LANs. This means LLC protocol can provide interconnectivity between different LANs because it makes the MAC sublayer transparent. Does this mean that all the LANs use ... . But don't we see that the frame format of alll are different. So, how is it possbile?

asked 14 hours ago in Computer Networks by superak96 (165 points) | 20 views

0 votes

2 answers

14

UGCNET-june2009-ii-08
To employ multi-access in GSM, users are given different: (A) time slots (B) bandpass filters (C) handsets (D) frequency bands

commented 14 hours ago in Computer Networks by rajatmyname Active (1.3k points) | 210 views

0 votes

0 answers

15

Peter Linz
Construct a DFA on {0, 1} where every 00 is followed immediately by 1

commented 14 hours ago in Theory of Computation by arya_stark Active (1.6k points) | 35 views

0 votes

1 answer

16

Pumping Lemma for CFG
Consider the language, L = {1k 0i 1i 0j 1j 0k | i,j,k>0}. Is this language context free? I tried to find this using pumping lemma, By intution, If we consider , by the definition of pumping lemma for CFG, u and y to be 1k and 0k ... in 0j and if the pump up the variables, surely string generated after pumping up wont be in the given language right? Am I missing something?

answered 14 hours ago in Theory of Computation by Priyadrasta Raut (313 points) | 160 views

+3 votes

4 answers

17

GATE2019-22
Two numbers are chosen independently and uniformly at random from the set {1,2,….,13}. The probability (rounded off to 3 decimal places) that their 4-bit (unsigned) binary representations have the same most significant bit is _______________.

commented 14 hours ago in Digital Logic by Ahabnnc Junior (779 points) | 3.5k views

+37 votes

6 answers

18

GATE2015-1-33
Consider the following pseudo code, where $x$ and $y$ are positive integers. begin q := 0 r := x while r ≥ y do begin r := r - y q := q + 1 end end The post condition that needs to be satisfied after the program terminates is $\{ r = qx + y \wedge r < y\}$ $\{ x = qy + r \wedge r < y\}$ $\{ y = qx + r \wedge 0 < r < y\}$ $\{ q + 1 < r - y \wedge y > 0\}$

answered 15 hours ago in Programming by ShamikBanerjee (379 points) | 2.9k views

0 votes

2 answers

19

Gate 2019
Are the gate keys out yet. If not, any info on when will they be out?

answered 15 hours ago in GATE by mkagenius (277 points) | 213 views

0 votes

1 answer

20

Linear Algebra-METest
If the determinant of the below matrix is 245, what is the value of X? $\begin{bmatrix} 0 & 4& 2 &1 \\ 3& -1 & 0 & 2\\ 5&2 & x& 4\\ 6& 1 & -1 & 0 \end{bmatrix}$ ... , because by keeping 6 in place of x I am getting determinant as 245(Result verified by computer program). Please let me know where I am going wrong?

answered 15 hours ago in Linear Algebra by Meet2698 (121 points) | 104 views

+16 votes

4 answers

21

GATE2000-5
A multiset is an unordered collection of elements where elements may repeat any number of times. The size of a multiset is the number of elements in it, counting repetitions. What is the number of multisets of size $4$ that can be constructed from n distinct elements so that at least one element occurs exactly twice? How many multisets can be constructed from n distinct elements?

answered 16 hours ago in Combinatory by Priyadrasta Raut (313 points) | 1.1k views

+1 vote

2 answers

22

Barc exam cse cut off 2017
Anyone have any idea about barc online exam cut off 2017

answered 16 hours ago in BARC by Vineet Kumar 1 (225 points) | 430 views

0 votes

0 answers

23

Set theory
consider A={1,2,3,...........n} how many number of multisets are possible for A: 1:n^2 2:2^n 3:n^n 4;none

commented 16 hours ago in Set Theory & Algebra by Priyadrasta Raut (313 points) | 46 views

0 votes

1 answer

24

Time Complexity
I am unable to Find its time complexity using Iterative method… Will any one help me out with this . Thank you :)

answered 17 hours ago in Algorithms by Priyadrasta Raut (313 points) | 74 views

0 votes

1 answer

25

made easy cbt
Consider a machine with byte addressable main memory of 30 bits, block size of 16 bytes and 4-way set associative cache of size 256 byte. For choosing the block to be replaced, use last recently used scheme. The number of cache misses for the following sequence of block addresses is 12, 28, 18, 15, 19, 31, 39, 15, 7, 15 is ________. what is last recently used?

answered 18 hours ago in Operating System by Piyush mishra (383 points) | 25 views

0 votes

2 answers

26

UGCNET-Nov2017-III-17
Find the normalization transformation that maps a window whose lower left corner is at (1, 1) and upper right corner is at (3, 5) onto a viewport that is the entire normalized device screen.

answered 19 hours ago in Others by MonikaV (23 points) | 466 views

+1 vote

2 answers

27

UGCNET-Nov2017-iii-17

answered 19 hours ago in Others by MonikaV (23 points) | 372 views

0 votes

0 answers

28

Central limit theorem
(Central Limit Theorem) Let X1, X2, . . . , X81 be i.i.d., each with expected value µ = E(Xi) = 5, and variance σ2 = Var(Xi) = 4. Approximate P(X1 + X2 +· · · X81 > 369), using the central limit theorem.

asked 20 hours ago in Probability by Na462 Loyal (8.6k points) | 12 views

0 votes

1 answer

29

NIELIT 2018-28
For the function $(z) = \frac{1}{z^2(e^z-1)}, z=0$ is a pole of order: $1$ $2$ $3$ None of these

answered 20 hours ago in Others by Asim Siddiqui 4 Junior (697 points) | 41 views

+1 vote

1 answer

30

UGCNET-Nov2017-III-16
Find the equation of the circle x2+y2=1 in terms of x'y' coordinates, assuming that the xy coordinate system results from a scaling of 3 units in the x' direction and 4 units in the y' direction. (1) 3(x')2+4(y')2 = 1 (2)$\left ( \frac{x'}{3} \right )$2 + $\left ( \frac{y'}{4} \right )$2 = 1 (3) (3x')2 + (4y')2=1 (4) $\frac{1}{3}$(x')2 + $\frac{1}{4}$(y')2 = 1

answered 20 hours ago in Others by MonikaV (23 points) | 276 views

0 votes

1 answer

31

Kenneth rosen Q.36 Ex.2.3
Let f be a function from the set A to the set B.Let S and T be subsets of A.Show that $f(S\cup T)=f(S)\cup f(T)$ $f(S\cap T)\subseteq f(S)\cap f(T)$ Show that inclusion in part b can be proper

commented 20 hours ago in Set Theory & Algebra by prashant jha 1 Active (4.1k points) | 29 views

0 votes

0 answers

32

NPTEL CODING ASSIGNMENT
Consider a matrix M of integers. Divide M into 4 sub-matrices. These sub-matrices are called as Quadrants. Report the Quadrant number which has the smallest minimum-element. If two or more quadrants have same smallest minimum, report the smallest ... than 1 and less than 12 OUTPUT FORMAT: Print in a separate line, the quadrant number with the smallest minimum-element.

commented 21 hours ago in Programming by himgta Active (3.6k points) | 23 views

0 votes

0 answers

33

Grewal
Suppose avg waiting time of a process to get chance in a queue is 5 min. What will the probability that process get chance at first minute is ________________

asked 21 hours ago in Probability by srestha Veteran (108k points) | 15 views

+1 vote

2 answers

34

Programming and DS (C O/P)
For n=2 the P is coming as 3,but none of the option is satisfying?

answered 21 hours ago in Programming by Priyadrasta Raut (313 points) | 114 views

+1 vote

4 answers

35

Searching
Q) Consider a sorted array of n numbers. What would be the time complexity of the best known algorithm to find a pair a and b such that |a-b| = k , k being a positive integer. a) O(logn) b) O(n) c)O(nlogn) d)O(n^2) Which of the option is Correct And Why?

answered 21 hours ago in Algorithms by Chivesh Upneja (11 points) | 395 views

0 votes

2 answers

36

What is the type of loading?
Routine is not loaded until it is called.All routine are kept on disk in a relocatable load format.The main program is loaded into memory and is executed.This type of loading is called as _________ A)Static Loading B)Dynamic Loading C)Dynamic Linking D)Overlays Kindly give explanation /attach references if any.

answered 21 hours ago in Operating System by layan Eysa (11 points) | 467 views

0 votes

1 answer

37

MCA ARRAY ADDRESS CALCULATION
Find the address of the position [10, 11, 12] of array A in column major order? Given Dimension is A[1:10, -5:15, -10:15], w is two word count, and Base address is 200.

answered 21 hours ago in DS by omprakash889 (23 points) | 13 views

0 votes

1 answer

38

Conditional Probability
A multiple choice exam has 4 choices for each question. A student has studied enough so that the probability they will know the answer to a question is 0.5, the probability that they will be able to eliminate one choice is 0.25, otherwise ... the test to measure what the student knows. If the student answers a question correctly what's the probability they knew the answer?

commented 22 hours ago in Probability by prashant jha 1 Active (4.1k points) | 78 views

0 votes

0 answers

39

Probability mass function
Suppose that the cdf of X is given by: F(a) ={ 0 for a < 0 1/5 for 0 ≤ a < 2 2/5 for 2 ≤ a < 4 1 for a ≥ 4. } Determine the pmf of X.

asked 22 hours ago in Probability by Na462 Loyal (8.6k points) | 14 views

+1 vote

0 answers

40

Probability density function
Let R be the rate at which customers are served in a queue. Suppose that R is exponential with pdf f(r) = 2e^(−2r) on [0, ∞). Find the pdf of the waiting time per customer T = 1/R.

asked 23 hours ago in Probability by Na462 Loyal (8.6k points) | 7 views

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