__________ are used to ensure that transactions access each data item in order of the transactions’ ____ if their accesses conflict.
A. Zone
B. Relay
C. Line
D. Timestamps
Answer:A
__________ are used to ensure that transactions access each data item in order of the transactions’ ____ if their accesses conflict.
A. Zone B. Relay C. Line D. Timestamps
Explanation: When this is not possible, offending transactions are aborted and restarted with a new timestamp.