Questions: 1. How can a composite signal be decomposed into its individual frequencies? (3 points)

2. What are the types of transmission impairment? (3 points)

3. What is the phase shift for a wave? Identify the phase in degrees for the following? (3 points)

a. A sine wave with the maximum amplitude at time zero

b. A sine wave with maximum amplitude after 1/4 cycle

c. A sine wave with zero amplitude after 3/4 cycle and increasing

4. Which signal has a wider bandwidth, a sine wave with a frequency of 500 Hz or a sine wave with a frequency of 900 Hz? (2 points)

5. Given the following periods, calculate the corresponding frequencies. (3 points) a. 10 s b. 24 s c. 220 ns

6. A person makes a local telephone call to another person, is this a point-to-point or multipoint connection? Explain your answer? (3 points)

7. Explain the relationship between period and frequency? (2 points) 8. A device is sending out data at the rate of 1000 bps. (3 points)

a. How long does it take to send out 20 bits?

b. How long does it take to send out a single character (8 bits)?

c. How long does it take to send a file of 100,00 characters?