_______ means that data used during the execution of a transaction cannot be used by a second transaction until the first one is completed.
A. Serializability
B. Atomicity
C. Isolation
D. Time stamping
Answer:A
_______ means that data used during the execution of a transaction cannot be used by a second transaction until the first one is completed.
A. Serializability B. Atomicity C. Isolation D. Time stamping
Explanation:Isolation means that data used during the execution of a transaction can’t be used by a second transaction until the first one is completed.