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Managing Multiuser Databases

Managing Multiuser Databases
The size of a lock is called:

implicit lock
lock granularity
shared lock
exclusive lock

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Managing Multiuser Databases
The size of the lock is referred to as the lock granularity.

False
True

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Managing Multiuser Databases
Which of the following refers to a cursor type where changes of any type and from any source are visible?

Dynamic
Static
Keyset
Forward only

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Managing Multiuser Databases
Database administration refers to a function that applies to the entire organization.

True
False

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Managing Multiuser Databases
A transaction is a series of actions to be taken on the database so that either all of them are performed successfully or none of them are performed at all.

True
False

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Managing Multiuser Databases
In this instance, dirty reads are disallowed, while nonrepeatable reads and phantom reads are allowed.

Serializable
Repeatable read
Read committed
Read uncommitted

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