1. A simple telephone system consists of two central (a.k.a. end) offices and a single toll office to which each central office is connected by a 1 MHz full-duplex trunk. Each telephone call requires 4 kHz. The average telephone is used to make 4 calls per 8 hour workday. (Don't worry about calls at night.) The mean call duration is 6 minutes. Ten percent of the calls are long-distance, i.e. pass through the toll office. What is the maximum number of telephones a central office can support? [Adapted from Tanenbaum problem 2.18]

2. Leon-Garcia problem 1.10 (a-c only) [reader page 33]: There are multiple possible answers for these, so please include your reasoning.

3. Kurose-Ross chapter 1 review question R17

4. Kurose-Ross chapter 1 review question R18

5. Kurose-Ross chapter 1 problem P4

6. Kurose-Ross chapter 1 review question R6