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Mohamad Eskandarane Questions
11022 Questions
State true or false: All the isolation levels disallow dirty writes
Database
2022-07-19
Answers
30
Question
40
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315
___________ allows uncommitted data to be read
Database
2022-07-19
Answers
30
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40
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293
________ allows only committed data to be read, but does not require repeatable reads
Database
2022-07-19
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30
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40
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375
________ allows only committed data to be read and further requires that no other transaction is allowed to update it between two reads of a data item by a transaction
Database
2022-07-19
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30
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287
State true or false: Serializable level may allow both serializable and non-serializable executions
Database
2022-07-19
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30
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304
Which of the following is a transaction isolation level as specified by SQL standard
Database
2022-07-19
Answers
30
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40
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314
Which of the following is not a type of a schedule
Database
2022-07-19
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30
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40
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299
If a schedule is equivalent to a serial schedule, it is called as a _________
Database
2022-07-19
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30
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40
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303
The average time for a transaction to be completed after it has been submitted is called as __________
Database
2022-07-19
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30
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325
Which of the following are the advantages of transaction concurrency
Database
2022-07-19
Answers
30
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40
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302
State true or false: Transactions can only run serially
Database
2022-07-19
Answers
30
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40
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336
A ___________ is one where, for each pair of transactions Ti and Tj such that Tj reads a data item previously written by Ti , the commit operation of Ti appears before the commit operation of Tj
Database
2022-07-19
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30
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40
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294
State true or false: Every cascadeless schedule is also recoverable
Database
2022-07-19
Answers
30
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40
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348
Total:
11022
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