5.4 Every Eithernet frame contains pading bytes. a. true b. false 5.5 What is the difference between a hub and a switch? a. Nothing-they are two names for the same thing b. A switch is a multi-port hub C A switch sends all traffic to all connected hosts, but a hub decides where to send traffic based on MAC addresses d. A hub sends all traffic to all connected hosts, but a switch decides where to send traffic based on MAC addresses 5.6 If two devices simultaneously transmit data on an Ethernet network and a collision occurs, what does each host d o in an attempt to resend the data and avoid another collision? vice compares the other device's priority value (determined by MAC a. Each de address) with its own, and the device with the highest priority value transmits first. b. Each device waits for a clear to send (CTS) signal from the switch. Each device randomly picks a priority value, and the device with the highest value transmits first c. d. Each device waits a random amount of time and then attempts retransmission t is the maximum speed at which 100BaseT Ethernet networks communicate? A. 3 Mbps B. 10 Mbps 5.7 Wha C. 100 Mbps D. 500 Mbps 5.8 What is full-duplex switched Ethernet? Ethernet that uses only fiber connections Each switch port is connected to at most one host and NICs/switches can send and receive data at the same time Each switch port is connected to at most one host and NICs /switches can send and receive data, but not at the same time Each switch port is connected to at least two hosts a. b. c. d. 6. Identify whether each MAC address is valid or invalid. If invalid, give a reason. a. 12-34-56-78-90-AB-CD b. 12-34-56-78-90-01 c. 12-34-56-78-90 e. 12-34-56-78-90-GH