Exercise: Managing Multiuser Databases

Questions for: Managing Multiuser Databases

In optimistic locking, the assumption is made that conflict will occur.
A:
True
B:
False
C:
D:
Answer: B
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Locks placed by the DBMS are explicit locks.
A:
True
B:
False
C:
D:
Answer: B
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When two transactions are being processed against the database at the same time they are termed concurrent transactions.
A:
True
B:
False
C:
D:
Answer: A
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The size of a lock is referred to as lock sizing.
A:
True
B:
False
C:
D:
Answer: B
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When one transaction reads a changed record that has not been committed to the database a filthy read occurs.
A:
True
B:
False
C:
D:
Answer: B
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