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1

Tuple relational calculus
can someone give me a explanation of how any divide query in relational algebra be written using tuple calculus(using implication) . thanks in advance

asked 1 hour ago in Databases by chetan raghav (19 points) | 2 views

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2

Madeasy workbook

asked 1 hour ago in Digital Logic by shefali1 Junior (527 points) | 2 views

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3

[Engineering maths] Linear homogeneous system of equation

asked 5 hours ago in Linear Algebra by rahul sharma 5 Loyal (4.8k points) | 4 views

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4

[Engineering Mathematics]
In system of Linear equations Ax=B, where A is m*n ,which of the following is/are true? a:) If b=0, and m=n,then only trivial solution is possible. b:) If b=0, and m=n,then always trivial solution is possible. c:)If b=0 ... If b=0,and m<n ,then only non-trivial solution possible. d:)If b=0,and m>n ,then only non-trivial solution possible.

asked 5 hours ago in Linear Algebra by rahul sharma 5 Loyal (4.8k points) | 3 views

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5

Gate 2018 schedule
I am not able to study for gate 2018 I have resources,time, environment, completed all the subjects while preparing for gate 2017 How do I overcome this

asked 8 hours ago in Revision by ck (41 points) | 14 views

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6

Memory management
If a virtual memory system has 4 pages in real memory and rest must be swapped to disk.which of the following is the hit ratio for the following page address stream? Assume that memory starts empty .use the first in first out(FIFO) algorithm. (a) 10% (b) 15% (C) 25% (d) 31%

asked 10 hours ago in Operating System by alokraj1142 (59 points) | 10 views

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7

AAI , JE (information technology) INTERVIEW

asked 1 day ago in Others by Rupendra Choudhary Active (1.3k points) | 28 views

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8

Doubt
CAn we build compiler without "syntax analyser" ?

asked 1 day ago in Compiler Design by Angkit Active (1.9k points) | 17 views

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9

BASIC DOUBT IN DBMS
Is there any difference between abort,kill and roll back?

asked 1 day ago in Databases by learner_geek (451 points) | 13 views

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10

P2NETdec2013(46)
Consider a preemptive priority based scheduling algorithm based on dynamically changing priority. Larger priority number implies higher priority. When the process is waiting for CPU in the ready queue (but not yet started execution), its priority changes at a rate a = 2. When it starts running ... 8 (B) 8, 2, 7 and 5 (C) 2, 5, 7 and 8 (D) 8, 2, 5 and 7

asked 1 day ago in Operating System by mahalakshmi r (21 points) | 13 views

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11

gate 2013
1) What is the return value of f(p, p) if the value of p is initialized to 5 before the call? Note that the first parameter is passed by reference, whereas the second parameter is passed by value. int f(int &x, int c) { c = c - 1; if (c == 0) return 1; x = x + 1; return f(x, c) * x; } (A) 3024 (B) 6561 (C) 55440 (D) 161051

asked 1 day ago in Algorithms by Nandini 1 (33 points) | 21 views

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12

Demand Paging
Can anyone pls explain what is the concept applied here http://www.cs.jhu.edu/~yairamir/cs418/os6/sld010.htm

asked 2 days ago in Operating System by Aashish S Junior (601 points) | 25 views

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13

ts set 2017
the main memory can store 32K words of 12 bits each. if the direct cache mapping is usedwith a cache capability of 512 words, what is the size of each location of cache

asked 2 days ago in Operating System by rajjindu (61 points) | 22 views

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14

Comparator
#

asked 2 days ago in Digital Logic by atul_21 (49 points) | 16 views

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15

ace practice booklet

asked 2 days ago in Databases by joshi_nitish Junior (987 points) | 35 views

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16

isro recruitment
I have a score of 157 in isro cs exam scientist.. is there any chance of getting shortlisted for interview?

asked 2 days ago in ISRO by vishnug97 (15 points) | 17 views

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17

Diameter of a graph and tree
Why there is a difference between diameter of a graph and tree? Diameter of a tree as i have read is the maximum path between two vertices(number of edges between two vertices) But for tree it says number of nodes on the longest path. But tree is a graph so why cant i find the diameter of tree in similar way?

asked 2 days ago in Mathematical Logic by rahul sharma 5 Loyal (4.8k points) | 7 views

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18

Mtech RA
How to Prepair for Mtech RA interview??? how it's differ then Mtech TA interview??? plz share your experience who give RA interview in IITB,IITk &other IIT??

asked 3 days ago in GATE by Hira Thakur Boss (5.7k points) | 9 views

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19

[Discrete Maths] Generating functions

asked 3 days ago in Mathematical Logic by rahul sharma 5 Loyal (4.8k points) | 51 views

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20

Normal Forms
While converting a grammar to Greibach Normal Form or Chomsky Normal Form, why do we do this - "If the start symbol S occurs on some right side, create a new start symbol S’ and a new production S’ → S."

asked 4 days ago in Theory of Computation by ssinghmy (143 points) | 11 views

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21

MadeEasy material
How storage mapping is done by compilers ? Even though actual loading of program in memory is done by loader. PS: This is the exact question as given in book, but i think it is memory mapping ?

asked 5 days ago in Compiler Design by shashank023 (27 points) | 22 views

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22

M.tech placement
Looking for high paid jobs during my m.tech from iit ropar, what things should i do for getting into highly paid companies?

asked 5 days ago in Job Queries by Decota (57 points) | 24 views

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23

Enrolling for OS course in GO classroom

asked 5 days ago in Operating System by Ekta Goel (15 points) | 24 views

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24

What are the vision requirements at IISc,Bangalore?

asked 5 days ago in IISc/IITs by Death Bud (11 points) | 29 views

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25

GATE for Data Scientists and machine learning engineer

asked 5 days ago in Job Queries by parthbkgadoya (295 points) | 29 views

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26

[Self doubt] Permutation
Default permutation is with repetition or not?I came across some questions and it was nothing mentioned like repetition and all.But if questions says how many passwords then it was assumed that they are distinct and repetition not allowed ... by 4 digits etc. and in these question it was with repitiion.So how to differentiate between these two?

asked 5 days ago in Mathematical Logic by rahul sharma 5 Loyal (4.8k points) | 18 views

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27

Post Gate
I am 2016 pass out.I attempted gate that year and got 603 marks.As i didn't get a good enough college i decided to drop and try again.I prepared for gate 2017 due to bad mistakes ends up scoring 633.As i am not going to get iiit's either.What should i do?prepare for gate again or cracking gate is not possible for me

asked 6 days ago in Others by Sayan Das 2 (11 points) | 32 views

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28

#trichy ms
in 30student i m one of shortlisted candidate in nit trichy ms program due to my gate score is low and people said that they again consider gate score is it true?? and should i go plz help me seniors

asked 6 days ago in Other Colleges by tryhard (135 points) | 24 views

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29

can any one solve this. I need help please solve this.

asked Jun 15 in CO & Architecture by Syed Abdul Basit (17 points) | 40 views

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30

Booth's algorithms to find the value of 2 x -2 ?

asked Jun 15 in CO & Architecture by Syed Abdul Basit (17 points) | 9 views

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