1. Describe why direct memory access (DMA) is considered an efficient mechanism for performing I/O.
2. Distinguish between uniform memory access (UMA) and non-uniform memory access(NUMA) systems.
3. What are the advantages and disadvantages of using a microkernel approach?
4. Explain why a modular kernel may be the best of the current operating system design techniques.

Answer rating: 100% (QA)

Why direct memory access DMA is considered an efficient mechanism for performing IO DMA is an efficient mechanism for performing IO because it allows data to be transferred directly between a device a... View the full answer