Snapshot isolation is a particular type of ______________ scheme.
A. Concurrency-control
B. Concurrency-allowance
C. Redirection
D. Repetition-allowance
Answer:A
Snapshot isolation is a particular type of ______________ scheme.
A. Concurrency-control B. Concurrency-allowance C. Redirection D. Repetition-allowance
Explanation: It has gained wide acceptance in commercial and open-source systems, including Oracle, PostgreSQL, and SQL Server.