5. What is the cause of thrashing? How does the system detect thrashing? Once it detects thrashing, what can the system do to eliminate this problem?

1.. Calculate the total head movements for the following queues using C-LOOK (head starts at 53)

46, 73, 11, 20, 151, 115, 130, 49

2.. In what ways is using a nameserver better than using static host tables? What problems or complications are associated with name servers? What methods could you use to decrease the amount of traffic nameservers generate to satisfy translation requests?

3. What is the purpose of system calls?