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
A. Buffer
B. Catalog
C. Storage
D. Secondary storage
Answer:A
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
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. 3. The subsystem responsible for the allocation of buffer space is called the ___________.