In an airline reservation system, there are only 3 seats available for a Chennai flight. There are two passengers trying to book two tickets each for that flight. And, this happens at the same time. If both are allowed to book tickets, the system will end up in an inconsistent state. What do we call this problem?
A. Data redundancy and inconsistency
B. Data isolation
C. Security issues
D. Concurrent access anomaly
Answer:D
In an airline reservation system, there are only 3 seats available for a Chennai flight. There are two passengers trying to book two tickets each for that flight. And, this happens at the same time. If both are allowed to book tickets, the system will end up in an inconsistent state. What do we call this problem?
A. Data redundancy and inconsistency B. Data isolation C. Security issues D. Concurrent access anomaly