Explanation:Programs in a database system make requests (that is, calls) on the buffer manager when they need a block from disk. 4. In the buffer where there is no space for another block, the bllock can be inserted using
A. Pinned block strategy
B. Forced output block
C. Buffer replacement strategy
D. All of the mentioned
Answer:A
Explanation:Programs in a database system make requests (that is, calls) on the buffer manager when they need a block from disk. 4. In the buffer where there is no space for another block, the bllock can be inserted using
A. Pinned block strategy B. Forced output block C. Buffer replacement strategy D. All of the mentioned
Explanation:Most operating systems use a least recently used (LRU) scheme, in which the block that was referenced least recently is written back to disk and is removed from the buffer.