Questions from Operating Systems

Q: List and briefly define four classes of real-time scheduling algorithms

List and briefly define four classes of real-time scheduling algorithms.

Q: What items of information about a task might be useful in real

What items of information about a task might be useful in real-time scheduling?

Q: List and briefly define three techniques for performing I/O.

List and briefly define three techniques for performing I/O.

Q: List some benefits and disadvantages of synchronous and asynchronous RPCs.

List some benefits and disadvantages of synchronous and asynchronous RPCs.

Q: What is the difference between logical I/O and device I

What is the difference between logical I/O and device I/O?

Q: What is the difference between block-oriented devices and stream-

What is the difference between block-oriented devices and stream-oriented devices? Give a few examples of each.

Q: Why would you expect improved performance using a double buffer rather than

Why would you expect improved performance using a double buffer rather than a single buffer for I/O?

Q: What delay elements are involved in a disk read or write?

What delay elements are involved in a disk read or write?

Q: Briefly define the disk scheduling policies illustrated in Figure 11.7

Briefly define the disk scheduling policies illustrated in Figure 11.7. Figure 11.7:

Q: Briefly define the seven RAID levels.

Briefly define the seven RAID levels.