PREVIOUS YEAR SOLVED PAPERS - August 2016 Paper 3
- Option : B
- Explanation : Effective access time = 0.99 * (1 µs) + 0.8 *.02 µs + 0.001 * ( 10000 µs + 1000 µs) + 0.001 * (20000 µs + 2000 µs) = (0.99 +0.016+22.0+11.0) µs = 34 µs So, option (B) is correct.
- Option : B
- Explanation : In LRU:
In FIFO:
In Optimal:
Respectively there are 8, 10, 7 page faults. So, option (B) is correct.
- Option : A
- Explanation : According to question file control block and the index block is already in memory. So, we don't need to transfer them from anywhere else for further operation. If a block is added at the end (and the block information to be added is stored in memory), this is a single operation. So we need only one I/O operation required for indexed (single-level) allocation strategy. So, option (A) is correct.
