A block that is not allowed to be written back to disk is said to be ______________.
A. Pinned
B. Forced
C. Buffer
D. All of the mentioned
Answer:A
A block that is not allowed to be written back to disk is said to be ______________.
A. Pinned B. Forced C. Buffer D. All of the mentioned
Explanation:Although many operating systems do not support pinned blocks, such a feature is essential for a database system that is resilient to crashes.