Web resources

In what ways might a company of your choosing effectively use Web resources to improve their business? Please discuss some technical considerations of setting up a Web, FTP, News server, and some business advantages that may accrue from their wise use. Only needs to be two or three paragraph overview. Please cite your sources.

Disk Quotas

Setting disk quotas has two dimensions: political and technical. Explore both elements for setting up disk quotas.

Operating System

1. Suppose a time-sharing operating system allocated time slices of 20 milliseconds and the machine executed an average of 5000 instructions per microsecond. How many instructions could be executed in a single time slice? 2. Suppose a password consisted of a string of nine characters from the English alphabet (26 characters). If each possible password could be tested in a microsecond, how long would it take to test all possible passwords?

Scheduling criteria - Operating Systems

Discuss how the following pairs of scheduling criteria conflict in certain settings: a) CPU utilization and response time b) average turnaround time and maximum waiting time c) I/O device utilization and CPU utilization.

Semaphores

There is a one-way bridge that can hold up to three cars. Cars arrive at one end of the bridge and exit the bridge at the other end. Traffic is allowed only in the one, available, direction. Describe a solution to this synchronization problem that should include: A)Definition of appropriate semaphores, B)Description of the implementation of each of the primitive operations of each semaphore, C)Semaphore initial values, and D)Semaphore pseudo-code solution.