An actual update is not allowed to a data item :
A. before the corresponding log record is written out to stable storage
B. after the corresponding log record is written out to stable storage
C. until the whole log record has been checked for inconsistencies
D. All of these
Answer:A
An actual update is not allowed to a data item :
A. before the corresponding log record is written out to stable storage B. after the corresponding log record is written out to stable storage C. until the whole log record has been checked for inconsistencies D. All of these
Explanation: None.