Consider the transactions T1, T2, and T3 and the schedules S1 and S2 given below.Q. Which one of the following statements about the schedules is TRUE?a)Only S1 is conflict-serializable.b)Only S2 is conflict-serializable.c)Both S1 and S2 are conflict-serializable.d)Neither S1 nor S2 is conflict-serializable.Correct answer is option 'A'. Can you explain this answer? - EduRev Computer Science Engineering (CSE) Question

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Consider the transactions T1, T2, and T3 and the schedules S1 and S2 given below.

Q. Which one of the following statements about the schedules is TRUE?

a)
Only S1 is conflict-serializable.
b)
Only S2 is conflict-serializable.
c)
Both S1 and S2 are conflict-serializable.
d)
Neither S1 nor S2 is conflict-serializable.

Correct answer is option 'A'. Can you explain this answer?

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Consider the transactions T1, T2, and T3 and the schedules S1 and S2 g...

For conflict serializability of a schedule(which gives same effect as a serial schedule) we should check for conflict operations, which are Read-Write, Write-Read and Write-Write between each pair of transactions, and based on those conflicts we make a precedence graph, if the graph contains a cycle, it's not a conflict serializable schedule. To make a precedence graph: if Read(X) in Ti followed by Write(X) in Tj (hence a conflict ), then we draw an edge from Ti to Tj (Ti -> Tj) If we make a precedence graph for S1 and S2 , we would get directed edges for S1 as T2->T1, T2->T3, T3->T1, and for S2 as T2->T1, T2->T3, T3->T1, T1->T2. In S1 there is no cycle, but S2 has a cycle. Hence only S1 is conflict serializable. Note : The serial order for S1 is T2 -> T3 -> T1.

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Consider the transactions T1, T2, and T3 and the schedules S1 and S2 given below.Q. Which one of the following statements about the schedules is TRUE?a)Only S1 is conflict-serializable.b)Only S2 is conflict-serializable.c)Both S1 and S2 are conflict-serializable.d)Neither S1 nor S2 is conflict-serializable.Correct answer is option 'A'. Can you explain this answer?

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Consider the transactions T1, T2, and T3 and the schedules S1 and S2 given below.Q. Which one of the following statements about the schedules is TRUE?a)Only S1 is conflict-serializable.b)Only S2 is conflict-serializable.c)Both S1 and S2 are conflict-serializable.d)Neither S1 nor S2 is conflict-serializable.Correct answer is option 'A'. Can you explain this answer? for Computer Science Engineering (CSE) 2024 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about Consider the transactions T1, T2, and T3 and the schedules S1 and S2 given below.Q. Which one of the following statements about the schedules is TRUE?a)Only S1 is conflict-serializable.b)Only S2 is conflict-serializable.c)Both S1 and S2 are conflict-serializable.d)Neither S1 nor S2 is conflict-serializable.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the transactions T1, T2, and T3 and the schedules S1 and S2 given below.Q. Which one of the following statements about the schedules is TRUE?a)Only S1 is conflict-serializable.b)Only S2 is conflict-serializable.c)Both S1 and S2 are conflict-serializable.d)Neither S1 nor S2 is conflict-serializable.Correct answer is option 'A'. Can you explain this answer?.

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