The _______ is that part of main memory available for storage of copies of disk blocks.
A. Buffer
B. Catalog
C. Storage
D. Secondary storage
Answer:A
The _______ is that part of main memory available for storage of copies of disk blocks.
A. Buffer B. Catalog C. Storage D. Secondary storage
Explanation:There is always a copy kept on disk of every block, but the copy on disk may be a version of the block older than the version in the buffer. 2. A major goal of the database system is to minimize the number of block transfers between the disk and memory. This is achieved by