Calculate the total time required to transfer a 1000-kb file in the following cases, assuming an rtt of 50 ms, a packet size of 1 kb data, and an initial 2×rtt of "handshaking" before data is sent: a) the bandwidth is 1.5 mbps, and data packets can be sent continuously. b) the bandwidth is 1.5 mbps, but after we finish sending each data packet we must wait one rtt before sending the next. c) the bandwidth is "infinite," meaning that we take transmit time to be zero, and up to 20 packets can be sent per rtt. d) the bandwidth is infinite, and during the first rtt we can send one packet (2 1−1 ), during the second rtt we can send two packets (2 2−1 ), during the third we can send four (2 3−1 ), and so on.

Arla made a spreadsheet in excel showing the projected costs for a concert she was putting on. what can marla enter into cell a11 to find out how much money is left in her budget and to make sure the cell is updated whenever she changes any of the other costs?

Jason, samantha, ravi, sheila, and ankit are preparing for an upcoming marathon. each day of the week, they run a certain number of miles and write them into a notebook. at the end of the week, they would like to know the number of miles run each day, the total miles for the week, and average miles run each day. write a program to them analyze their data. your program must contain parallel arrays: an array to store the names of the runners and a two-dimensional array of five rows and seven columns to store the number of miles run by each runner each day. furthermore, your program must contain at least the following functions: a function to read and store the runners’ names and the numbers of miles run each day; a function to find the total miles run by each runner and the average number of miles run each day; and a function to output the results. (you may assume that the input data is stored in a file and each line of data is in the following form: runnername milesday1 milesday2 milesday3 milesday4 milesday5 milesday6 milesday7.)

In a word processing program, such as microsoft word, which feature to you choose the desired picture enhancement?