Reference no: EM13760254 , Length: 2000 Words
Q1. Imagine that you are the manager of a small business computing center. List at least three techniques that you would use to convince a busy, reluctant night operator to perform regular backups. Explain the best and worst possible technique to assure your success.
Q2 Describe the advantages and disadvantages of password generator software. Would you recommend the use of such software for your own system? Explain why or why not.
Q3 Given multi-network access, it's not unusual for users to have multiple user identifications and passwords. How would you manage these multi-password situations? Describe both the advantages and disadvantages of your solution.
Q4 Review the system with one CPU and four drives below:
• CPU W = 4 ms (the average time to execute 1,000 instructions)
• Drive A = 45 ms (average data access speed)
• Drive B = 3 ms (average data access speed)
• Drive C = 17 ms (average data access speed)
• Drive D = 10 ms (average data access speed)
Calculate I/O access speed using this CPU and each of the four disk drives as they evaluate the following track requests in this order: 0, 31, 20, 15, 20, 31, 15. Then, in each case, calculate the access speeds after the track requests are reordered and rank the four disk drives before and after reordering.
Q 5 Calculate the reliability of a hard disk drive with an MTBF of 2,499 hours during the last 40 hours of this month. Assume e = 2.71828and use the formula:Reliability (t) =e -(1/MTBF)(t)