How many different ways are there to order the eight jobs in the queue so that job usu comes somewhere before cdp in the queue (although not necessarily immediately before) and cdp comes somewhere before bbd (again, not necessarily immediately before)?

given the options, i would say your best bet is c. the modem supports up to 56 kbps, which is too low for video streaming. dial up modems use actual phone lines, which only can go up to 56 kbps as that's more than sufficient for traditional phone calls. this is also the reason why when a dial-up modem connects, you hear all those sounds. it's literally using the phone line to establish a connection.

i think the answer is b.

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