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daksirp
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Questions by daksirp
2
votes
3
answers
1
ER Diagram: What is the cardinality of this relationship? is m-n cardinality correct? if not, why?
What is the cardinality of this relationship? is m-n cardinality correct? if not, why?
What is the cardinality of this relationship? is m-n cardinality correct? if not, why?
1.3k
views
asked
Apr 23, 2022
Databases
er-diagram
cardinality
+
–
0
votes
0
answers
2
Proper Prefix
L = {ab} Prefix(L) = {ε, a, ab} i know, a - proper prefix ab - prefix ε - ?? What about 'ε' ? is it proper prefix or prefix ??
L = {ab}Prefix(L) = {ε, a, ab}i know,a - proper prefixab - prefixε - ??What about 'ε' ? is it proper prefix or prefix ??
243
views
asked
Oct 5, 2018
0
votes
0
answers
3
SpeedUP
https://gateoverflow.in/3437/gate2007-it-6-isro2011-25 Why are they not calculating average CPI in pipelined processor and then calculating speedup ???
https://gateoverflow.in/3437/gate2007-it-6-isro2011-25Why are they not calculating average CPI in pipelined processor and then calculating speedup ???
438
views
asked
Sep 2, 2018
CO and Architecture
speedup
cpi
+
–
0
votes
0
answers
4
Virtual Memory
https://gateoverflow.in/490/gate2008-67 Can anyone please explain this question ? The number of bits required for addressing the next level page table(or page frame) in the page table entry of the first, second and third level page tables What is this ? I ... virtual memory is being divided and what are we supposed to find out in the ques. id dnt understood the highlited lin above..
https://gateoverflow.in/490/gate2008-67Can anyone please explain this question ?The number of bits required for addressing the next level page table(or page frame) in the...
150
views
asked
Aug 28, 2018
1
votes
1
answer
5
Self Doubt : Framentation
"Whenever ther is Internal fragmentation, there is always an external fragmentation " Is this statement TRUE ?
"Whenever ther is Internal fragmentation, there is always an external fragmentation "Is this statement TRUE ?
359
views
asked
Aug 27, 2018
0
votes
1
answer
6
Self Doubt : SQL
HI Why it is necessary to assume ? why do we nned that line ?
HIWhy it is necessary to assume ? why do we nned that line ?
269
views
asked
Aug 23, 2018
0
votes
0
answers
7
Keywords : ALL/ANY/SOME
I know ALL {empty_set} evaluates TRUE ANY{empty_set} evaluates FALSE ex : ......................where marks > ALL(Subquery) what is actually happening here ?? ALL(subquery) is TRUE since subquery returned empty set so inplace of ALL(subquery), ... value "1" since it is TRUE, and then start comparing with marks ??? can anyone explain it where am i going wrong ??
I knowALL {empty_set} evaluates TRUEANY{empty_set} evaluates FALSEex :......................where marks ALL(Subquery)what is actually happening here ??ALL(subquery) is T...
225
views
asked
Aug 22, 2018
–1
votes
0
answers
8
B+ Trees
Source : https://gateoverflow.in/234960/test-series Please verify my answer !!
Source : https://gateoverflow.in/234960/test-seriesPlease verify my answer !!
233
views
asked
Aug 21, 2018
0
votes
0
answers
9
Self Doubt : Referential Integrity
sOURCE : https://gateoverflow.in/743/gate2001-2-25 How Option C is corrrect ? if w < x, how its going to get deleted ? if w = x, then it will get deleted
sOURCE : https://gateoverflow.in/743/gate2001-2-25How Option C is corrrect ?if w < x, how its going to get deleted ?if w = x, then it will get deleted
381
views
asked
Aug 21, 2018
0
votes
1
answer
10
Cross_Joins
What is CROSS JOIN with an empty table ??
What is CROSS JOIN with an empty table ??
324
views
asked
Aug 19, 2018
2
votes
0
answers
11
Equi_Joins
https://gateoverflow.in/1670/gate1998-1-33 What will be the attributes of resultant table : (A B) or (C D) ?
https://gateoverflow.in/1670/gate1998-1-33What will be the attributes of resultant table :(A B) or (C D) ?
984
views
asked
Aug 17, 2018
0
votes
2
answers
12
Natural Joins
Please clear my doubt by solving this !!
Please clear my doubt by solving this !!
391
views
asked
Aug 15, 2018
1
votes
1
answer
13
Right Quotient
if ba/ε is ba, then what is ε/ba ??
if ba/ε is ba, then what is ε/ba ??
777
views
asked
Aug 3, 2018
0
votes
0
answers
14
Non Monotonicity : Undecidability, Non RE
L = {<M> | M is a TM that accepts all even numbers }, How L Satisfies non-monotonicity ?? Explain
L = {<M | M is a TM that accepts all even numbers }, How L Satisfies non-monotonicity ?? Explain
190
views
asked
Aug 3, 2018
0
votes
0
answers
15
TOC : Turing Machines, Decidability
Consider <M> be the encoding of a Turing Machine as a string over alphabet Σ = {0, 1}. Consider L = {<M>⏐M is TM that halt on all input and L(M) = L′ for some undecidable language L′}. Then L is .... can anyone explain the sentence in Bold and bold & italics ?? i didnt get L(M).
Consider <M be the encoding of a Turing Machine as a string over alphabet Σ = {0, 1}. Consider L = {<M>⏐M is TM that halt on all input and L(M) = L′ for some undecid...
877
views
asked
Jul 31, 2018
1
votes
1
answer
16
Equivalence of acceptance by empty stack and acceptance by final state. : PDA, Prefix Property
Set of languages accepted by DPDA by empty stack contain only those DCFL's with prefix property. and DPDA with empty stack doesnt accept any regular language too becaust it doesn't satisfy prefix property. ... which doesn't prefix property. I just want to know where it will get stuck on PDA.
Set of languages accepted by DPDA by empty stack contain only those DCFL’s with prefix property.and DPDA with empty stack doesnt accept any regular language too becaust...
2.3k
views
asked
Jul 25, 2018
0
votes
1
answer
17
decidable and undecidable problem : https://gatecse.in/grammar-decidable-and-undecidable-problems/
Soutce : https://gatecse.in/grammar-decidable-and-undecidable-problems/ Why L(G1) ⋂ L(G2) = Φ ?? is undecidable for dcfl, cfl etc ?? please explain it anyone
Soutce : https://gatecse.in/grammar-decidable-and-undecidable-problems/Why L(G1) ⋂ L(G2) = Φ ?? is undecidable for dcfl, cfl etc ?? please explain it anyone
670
views
asked
Jul 9, 2018
1
votes
1
answer
18
Closure Properties
How to solve this type of questions, should we use closure table or any other allternative ? Please exolain.
How to solve this type of questions, should we use closure table or any other allternative ? Please exolain.
1.0k
views
asked
Aug 28, 2016
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