For the i/o request sequence: < 90, 12, 35, 100, 28, 74, 56, 9, 3, 45, 48, 104, 3, 175, 69, 95, 34, 11, 49, 2, 78> , the initial position of the read/write head is at cylinder 50. (a) use sstf and scan techniques. (b) explain the advantages and disadvantages of fcfs, sstf, and scan scheduling techniques. show all your work.

Match the items with their respective descriptions.

Select the correct answer. a company wants to use online methods to target more customers. it decides to conduct a market research by collecting the data of a few customers with their consent. they want to track data of the sites that their customers frequently visit. which software can the company? a. spyware b. bots c. adware d. trojan horse e. rootkits

What are loans to a company or government for a set amount of time