Q. A deadlock exists in the system if and only if the wait-for graph contains a ___________.

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Q. Selecting the victim to be rollbacked to the previous state is determined by the minimum cost. The factors determining cost of rollback is

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Q. __________ rollback requires the system to maintain additional information about the state of all the running transactions.

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Q. Which of these is data type long literal?

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Q. Which of the following occurs when a transaction rereads data and finds new rows that were inserted by a command transaction since the prior read?

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Q. A transaction for which all committed changes are permanent is called:

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Q. In this instance, dirty reads are disallowed, while nonrepeatable reads and phantom reads are allowed.

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Q. Which of the following occurs when a transaction rereads data it has previously read and finds modification or deletions caused by a committed transaction?

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Q. A transaction may not always complete its execution successfully. Such a transaction is termed

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Q. Transaction processing is associated with everything below except

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Q. Transaction management ensures ____________ and __________ properties.

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Q. ____________ is an interface between low level database and application program.

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Q. Which of the following are functions of Database Manager ?

1. Interacting with File Manager
2. Creating Queries to Access data
3. Security Enforcement
4. Database Definition and Schema Generation

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Q. Who detects the failure of the system and restore the database to consistent state ?

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Q. A traditional data administrator performs which of the following roles?

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Q. Which of the following is the preferred way to recover a database after a transaction in progress terminates abnormally?

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Q. Which of the following is the preferred way to recover a database after a system failure?

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Q. Concurrency control is important for which of the following reasons?

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Q. A shared lock allows which of the following types of transactions to occur?

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Q. Locking may cause which of the following problems?

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