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1. An atm network uses a token bucket scheme for traffic shaping. A new token is put into the bucket every 10 second. Each token is good for one cell ( i. e. a packet) , which contains 50 bytes of data. What is the maximum sustainable data rate?

2. A computer on a network is regulated by a token bucket. The token bucket is filled at a rate of 1Mbps. It is initially filled to capacity with 10megabits. how long can the computer transmit at the maximum speed of 6 Mbps?

3. Imagine a flow specification that has a max packet size of 2000 bytes, a token bucket rate of 20 million bytes/sec, a token bucket size of 1 million bytes, and a max transmission rate of 50 milliom bytes/sec. How long can a burst at max speed last?