Question 1. True or False: Packet switching requires control and address bits to be added to each packet. This causes considerable overhead in packet-switching. However, circuit switching does not need extra bits are needed because it establishes a circuit. Thus, there is no overhead in circuit switching and the line utilization of circuit switching must be more efficient than in packet switching. Justify your answer. (2 points) Question 2. Why do we want to standardize protocols? (2 points) Question 3. Discuss two advantages and two disadvantages of developing a layered protocol? (4 points)