Assume for simplicity that each transmitted packet in a slotted Aloha system is successful with some fixed probability p. New packets are assumed to arrive at the beginning of a slot and are transmitted immediately. If a packet is unsuccessful, it is retransmitted with probability qr in each successive slot until successfully received. Find the expected delay T from the arrival of packet until the completion of its successful transmission.

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Which of the following is not a characteristic of enterprise applications that cause challenges in implementation? a. they introduce "switching costs," making the firm dependent on the vendor. b. they cause integration difficulties as every vendor uses different data and processes. c. they are complex and time consuming to implement. d. they support "best practices" for each business process and function. e. they require sweeping changes to business processes to work with the software.

Aprice control is: question 1 options: a)a tax on the sale of a good that controls the market price.b)an upper limit on the quantity of some good that can be bought or sold.c)a legal restriction on how high or low a price in a market may go.d)control of the price of a good by the firm that produces it.