Quick computer science questions. Answer ALL 31-40 for positive rate.

31. Caching speeds access to stored items. Access time to which one of the following stored items does not improve from caching? A: program data B: program instructions C: web pages D: disk sectors E: none of these 32. T or F? CPU registers provide a computer with quicker access than main memory locations, but CPU registers cost more per bit of storage. 33. How many bits does a 8GB memory contain? Hint 1G A: 211 B: 230 C: 233 D: 236 E: none of these 230 34. Which one of the following is not a reason secondary storage devices are necessary to a general purpose computer? A: main memory is relatively small compared to secondary storage B: most main memory is volatile C: some main memory contents are permanent or not quickly rewritable D: main memory is still relatively expensive compared to secondary storage E: none of these 35. With respect to the storage on magnetic disks, which one of the following has the largest capacity? A. intersector gap B sector C: track D: surface E: cylinder 36. Fact On modern magnetic disks, all sectors have the same capacity, but T or F? all tracks do not have the same number of sectors 37. With respect to access to a single sector stored on a magnetic disk, which one of the following represents, on average, the shortest time interval? A: total access time B: rotational latency C: seek time D: transfer time E: none of these 38. T or F? SCSI devices on a single computer system are daisy-chained together. 39. What is the oft-quoted access time for a modern magnetic disk? A: 1x10-6 seconds B: 1x10-4 seconds C: 1x10-3 seconds D: 1x10-2 seconds E: none of these 40. T or F? All RAID (Redundant Array of Independent Disks) levels store redundant copies of data