1. Which of the following types of LANs was a competitor of Ethernet LANs from the earliest days of wired LANs in the 1980s and into the 1990s?
a. ATM b. FDDI c. Token Ring d. Metro Ethernet
3. Which of the following speeds are not defined as a speed by some Ethernet LAN standard?
a. 1 Gbps b. 4 Gbps c. 10 Gbps d. 40 Gbps
5. A campus LAN drawing shows hundreds of user devices cabled to LAN switches on various floors of a building. The per-floor edge switches have a cable connected to other switches that sit on the first floor of the building. All the links from the edge switches to the end-user devices use 100BASE-T. A PC on floor 2 sends an Ethernet frame to a PC on floor 3, with the frame passing through the switches on the first floor as part of the journey. Which of the following statements is true about the links between the switches in this Ethernet LAN?
a. The links must all use 100BASE-T. b. The links could use any Ethernet LAN standard. c. The links could use any UTP-based Ethernet LAN standard. d. The links could use any Ethernet LAN standard from 1 Gbps speeds and faster.
7. Which of the following is the formal IEEE standard for 1-Gbps Ethernet using UTP cabling?
a. 802.3ab b. 802.3ae c. 802.3u d. 802.3z
9. PC A has a 10/100 NIC that supports autonegotiation, and PC B has a 10-Mbps NIC that does not support autonegotiation. Both PCs connect to a LAN switch using a UTP cable. Both switch ports are 10/100/1000 ports that also support IEEE autonegotiation. Which of the following are true about autonegotiation in this small network? (Choose two answers.)
a. Autonegotiation works on the switch–to–PC A link, causing PC A to run at 100 Mbps. b. Autonegotiation fails to work on the switch–to–PC B link, causing the switch to run at 1 Gbps. c. Autonegotiation fails to work on the switch–to–PC B link, causing the switch to run at 10 Mbps. d. Autonegotiation works on the switch–to–PC A