Which of the following is not a property of a transaction?
Answer: B
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What is the action of tetracycline in prokaryotes?
Answer: C
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When was the genetic code completed?
Answer: C
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A data warehouse administrator is concerned with which of the following?
Answer: B
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When transaction Ti requests a data item currently held by Tj , Ti is allowed to wait only if it has a timestamp larger than that of Tj (that is, Ti is younger than Tj ). Otherwise, Tj is rolled back (Tj is wounded by Ti ). This is
Answer: C
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A transaction may not always complete its execution successfully. Such a transaction is termed
Answer: A
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Identify the characteristics of transactions
Answer: D
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State true or false: Information residing in the volatile storage does not usually survive system crashes
Answer: A
Information residing in the volatile storage does not usually survive system crashes but the information in stable storage can survive system crashes efficiently.
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Execution of translation in isolation preserves the _________ of a database
Answer: B
Execution of translation in isolation preserves the consistency of a database. It ensures that no other transaction is running concurrently.
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Transaction management ensures ____________ and __________ properties.
Answer: B
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