I stared at this for a second because it sounds like a joke but they were completely serious.
Break the problem into two parts: the total data volume (number of CDs × capacity per CD) and the total transit time (flight duration). Then divide data by time to get bandwidth, stating assumptions clearly and sanity-checking the result against familiar network speeds.
Pro tip: Frame the answer around the trade-off between latency and bandwidth: the 747 has enormous bandwidth but terrible latency, which is why it's a classic example of why bandwidth alone doesn't determine user experience.
Assume a 747 cargo hold can carry about 100 tons of CDs. Each CD weighs roughly 15 grams and holds about 700 MB, so calculate total capacity in bits.
A transatlantic flight takes about 8 hours, including loading and unloading. Convert this to seconds for the bandwidth calculation.
Divide total bits by total seconds to get bits per second. Simplify the arithmetic to get a rough order of magnitude.
Compare the result to typical network speeds (e.g., 1 Gbps) and discuss the latency implications. Mention that the effective bandwidth for interactive use is much lower due to the 8-hour delay.
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