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1

printf
What is the use of %n being used in printf statement

asked 38 minutes ago in Programming by saipriyab (165 points) | 4 views

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2

serial schedules
If total n! serial schedules are possible , will all of them give the same result?

asked 1 hour ago in Databases by Parshu gate (381 points) | 4 views

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3

dfa-finite automata
Let L1 and L2 be the languages L1 = {x ∈ {a, b}∗ | aa is not a substring of x} L2 = {x ∈ {a, b}∗ | x ends with ab} Construct an FA Accepting L1 ∩ L2

asked 1 hour ago in Theory of Computation by set2018 Loyal (3.5k points) | 5 views

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4

mutual exclusion
Initial values of S1 ansd S2 are random assigned Method by P1 do { flag[i] = true; S1 = S2; while( flag[j]=true and S1 == S2) critical section flag[i]=false; remainder section }while(1); Method used by P2 do { flag[j]= ... while(flag[i]=true and S1!=S2); criticals ection flag[j]=false; remainder section } while(1); Does this gurantee mutual exclusion?

asked 3 hours ago in Operating System by A_i_$_h Loyal (4.6k points) | 4 views

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5

DMA cycle stealing.
Consider 1 mbps hard-disk is interfaced to the processor in a cycle stealing mode of DMA whenever 64 bytes of data is available in the buffer,then it is transferred to main memory (1 word = 64 bits) and machine cycle time is 2 micro sec. Then, percentage of CPU time consumed for DMA operation is ? Assume BR and BG requests take 5 micro seconds each.

asked 4 hours ago in CO & Architecture by Xylene Loyal (2.9k points) | 5 views

+1 vote

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6

address translation table
a) What is address translation table?? b) is it converting virtual adress to physical address?? c) if so Then for a system having no virtual memory , will not have aaddress translation table??

asked 4 hours ago in Operating System by A_i_$_h Loyal (4.6k points) | 6 views

+1 vote

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7

UGC NET jUNE 2006 -QN 5
Let A = {x | -1<x<1} = B. The function f(x)=x/2 from A to B is: (A) injective (B) surjective (C) both injective and surjective (D) neither injective nor surjective How it can be both injective and surjective ??

asked 6 hours ago in Mathematical Logic by Aparna Deepak (39 points) | 12 views

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8

"Borrow and Carry are complements of each other"

asked 14 hours ago in Digital Logic by Parimal Paritosh (115 points) | 16 views

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9

graph theory
"A planar graph need not to be connected" Can someone plz explain with an example .

asked 16 hours ago in Set Theory & Algebra by Pawan Kumar 2 Junior (557 points) | 16 views

+1 vote

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10

Online test series
#include<stdio.h> void fun(int arr[]){ int i; int arr_size=sizeof(arr)/sizeof(arr[0]); for(i=0;i<arr_size;i++){ printf("%d\t",arr[i]); } } int main(){ int i; int arr[4]={10,20,30,40}; fun(arr); } Here why doesn't it output 10 20 30 40. The answer given is 10 20. Please explain this.

asked 16 hours ago in Programming by Satwik Mishra 1 (97 points) | 20 views

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11

Sheldon Ross chapter#3 Qno-45
A set of k coupons, each of which is independently a type j coupon with probability pj , from i=1 to n ∑ pj = 1, is collected. Find the probability that the set contains either a type i or a type j coupon.

asked 16 hours ago in Probability by Warrior Boss (5.4k points) | 7 views

+1 vote

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12

Corman Algo
if f(n)=n/log n and c=2 Than f*(n)=?

asked 17 hours ago in Algorithms by Nitesh Choudhary Active (2k points) | 11 views

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13

BCNF-decomposition
R(A,B,C,D,E) F={A→BCD,BC→D,D→B Decompose to BCNF.

asked 19 hours ago in Databases by rishu_darkshadow Active (1.9k points) | 10 views

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14

#TOC Identify Language
L = {ab3k | k>=0} wel, I think, this L is RL, as it has REGEX as a(bbb)*. Please correct me.

asked 20 hours ago in Theory of Computation by iarnav Loyal (3.4k points) | 22 views

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15

SElf doubt
Virtual memory leads to increase or decrease in context switching overhead? or doesnt it make any difference

asked 21 hours ago in Operating System by A_i_$_h Loyal (4.6k points) | 15 views

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16

Self doubt
Incase i get a equation like this 1234 p2 + 459p +657 =0 and i have to find P if value of P is given in choices then i can substitute one by one by find but if nochoices given then any easy way to solve these large numbered equations?

asked 22 hours ago in Operating System by A_i_$_h Loyal (4.6k points) | 17 views

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17

Syllabus
in syntax directed translation top down translation is in syllabus?

asked 22 hours ago in Compiler Design by sachin! Active (1k points) | 6 views

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18

A circuit produces 1’s complement of the input word

asked 1 day ago in Digital Logic by Sanjay Sharma Veteran (45.1k points) | 16 views

+1 vote

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19

Minimum number of index blocks
DB file consists of 1250 records. Block can hold either 3 records or (10 keys, 11 pointers). How many minimum index blocks are required for sparse B+ tree index? I think the answer should be (417/10) + (42/11) +(4/11) = 42 + 4 + 1 = 47 (Assuming order of leaf and internal nodes are same as they are not given separately). Am I correct?

asked 1 day ago in Databases by Xylene Loyal (2.9k points) | 40 views

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20

Concurrent transactions
Number of concurrent transactions that can be formed with 3 transactions having 3,2 and 1 operations respectively. Here should the answer be 60 or 54 ? Should we include serial transactions also in the answer or should we subtract it?

asked 1 day ago in Databases by Xylene Loyal (2.9k points) | 25 views

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21

Linear Bounded Automata
In LBA why not tape length same as input length? Why tape length linear multiple of input length? Why not it non linear?

asked 1 day ago in Theory of Computation by srestha Veteran (58.4k points) | 16 views

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22

Number of relations in ER diagram

asked 1 day ago in Databases by Xylene Loyal (2.9k points) | 43 views

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23

General
I heard JK Master Slave flipflop is not in syllabus. But there is this question of 2001, http://gateoverflow.in/752/gate2001-11 which is based on JK Master Slave Flipflop. I just want to know is JK Master Slave Flipflop still in Gate 2018 Syllabus?

asked 1 day ago in Digital Logic by Utkarsh Anand (99 points) | 16 views

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24

Understanding Confusion and Diffusion - Network Security

asked 1 day ago in Interview Questions by pC Veteran (21.3k points) | 16 views

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25

Self doubt
If A->aBXC and X-> € then follow of B is???

asked 1 day ago in Compiler Design by Ankit001 (303 points) | 28 views

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26

Union
How to calculate the union of two regular expression? Kindly explain with an example. Thank you.

asked 1 day ago in Theory of Computation by LORD ofKINGS (41 points) | 9 views

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27

database

asked 1 day ago in Databases by Kaluti Active (2.3k points) | 20 views

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28

database

asked 1 day ago in Databases by Kaluti Active (2.3k points) | 29 views

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29

cogestion window

asked 1 day ago in Computer Networks by Sunil8860 (403 points) | 22 views

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30

Decidability
1. {<M,w>| M is a TM, and w is a string, and there exist a TM, M' such that w (does not belongs to) L(M) Intersection L(M')} 2. {<M>| M is a TM, and M is the only TM that accepts L(M) = ... TM, whose decimal value must be less than 100. Binary Encoding:- 0no of states10no of input symbol10no of tape symbol1... like this other information. Ryt??

asked 1 day ago in Theory of Computation by Shubhanshu Boss (5.9k points) | 14 views

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