Multiple Choice
Which of the following is not true about two-phased locking?
A) Can make transactions serializable
B) Uses only shared locks
C) Has a growing phase
D) Has a shrinking phase
E) Cannot obtain a new lock once a lock has been released
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q13: Resource locking is one remedy to the
Q23: All commercial DBMS products use some version
Q34: A standby data repository is one which
Q35: Locks placed by a command issued to
Q41: Both rollforward and rollback require the use
Q45: A transaction is sometimes called atomic because
Q49: Changes in the database structure usually involve
Q62: Locks placed automatically by the DBMS are
Q75: Distinguish between the four cursor types.
Q90: Discuss the DBMS security model.