CompCh18-Answers to RQ

CompCh18-Answers to RQ - REVIEW QUESTIONS (COMPREHENSIVE...

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R EVIEW  Q UESTIONS  (C OMPREHENSIVE  C HAPTER  18) Reviewing the Basics 1. Name three types of Ethernet currently in use. What transmission speed does each support? 10-Mbps Ethernet (10 Mbps), Fast Ethernet (100 Mbps), and Gigabit Ethernet (1000 Mbps) 2. What is the maximum length of a cable on a 100BaseT network? 100 meters (328 feet) 3. What does the 100 in the name 100BaseT indicate? The transmission speed (100 Mbps) 4. What is broadcasting? Name a network connection device that uses it and one that does not. Broadcasting occurs when a device sends packets to every device it is connected to, regardless of the packet’s destination. Hubs and bridges use broadcasting, and switches and routers do not. 5. What is one advantage of using repeaters? What is a disadvantage? Repeaters amplify signals on a network, enabling the signal to travel over longer distances and reducing signal degradation. A disadvantage is that on Ethernet networks, there is a maximum amount of time that a signal can take to reach a network, and repeaters slow down travel time. 6. What topology does a Token Ring network use?
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Star ring 7. How is a FDDI network like a Token Ring network? How is it different? FDDI uses a token that travels in a ring like on a Token Ring network. However, data frames can travel on the ring without the token, and multiple nodes can have data on the ring at the same time. 8. What IEEE standards describe Ethernet? What IEEE standards describe wireless LAN? Ethernet: 802.3 Wireless LAN: 802.11, 802.11b, 802.11a, 802.11g, 802.11d 9. Can a NIC be designed to use more than one network architecture? More than one type of cabling? Explain. A NIC can be designed to use only one network architecture but can be designed to use more than one type of cabling. The NIC and the device drivers are the only components in the PC that are aware of the type of network being used. 10. What connecting device do you use for a small LAN? For two network segments? Two or more connected networks? Give reasons for your answers. For a small network, hubs are sufficient. If a network is divided
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CompCh18-Answers to RQ - REVIEW QUESTIONS (COMPREHENSIVE...

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