End Of Chapter 05 Review - Chapter 5 LANs and WLANs...

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Chapter 5: LANs and WLANs TRUE/FALSE 1. Because network technology continues to evolve, it is based on a set of fairly unstable concepts. ANS: F PTS: 1 REF: 246 2. A WAN provides connectivity within a limited geographical area, often within a single building. ANS: F PTS: 1 REF: 247 3. In a client/server network, a server provides services to other computers called clients. ANS: T PTS: 1 REF: 249 4. A bus topology connects all devices to a common backbone, which functions as a shared communications link. ANS: T PTS: 1 REF: 250 5. The device used to connect your home LAN to the Internet is a type of gateway. ANS: T PTS: 1 REF: 251 6. A process called handshaking allows two communications devices on a network to negotiate their communications protocols. ANS: T PTS: 1 REF: 252 7. The wave on the bottom in the accompanying figure depicts a digital signal. ANS: F PTS: 1 REF: 253 8. The wave on the top in the accompanying figure depicts an analog signal. ANS: F PTS: 1 REF: 253
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9. MAC addresses are used for some low-level network functions and can also be employed to establish network security. ANS: T PTS: 1 REF: 254 10. A packet always travels from the source directly to the destination, never traveling through intermediate routing devices. ANS: F PTS: 1 REF: 255 11. IP addresses can be assigned by ISPs or system managers. ANS: T PTS: 1 REF: 255 12. When two packets collide in an Ethernet network, as illustrated in the accompanying figure, the two devices wait for random time periods before retransmitting to prevent a collision from reoccurring. ANS: T PTS: 1 REF: 259 13. In the accompanying figure, the item on the left simply plugs into a serial port on the outside of the system unit. ANS: F PTS: 1 REF: 261 14. In the accompanying figure, the item on the right can be installed in an expansion slot inside the system unit of a desktop computer.
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ANS: T PTS: 1 REF: 261 15. In the accompanying figure, the item on the left in the accompanying figure can be used with a notebook or desktop computer. ANS: T PTS: 1 REF: 261 16. Microwaves cannot be aimed in a single direction and have less carrying capacity than radio waves. ANS: F PTS: 1 REF: 265 17. A transceiver is a combination of a transmitter and a receiver. ANS: T PTS: 1 REF: 265 18. Bluetooth is often used to connect workstations to a LAN. ANS: F PTS: 1 REF: 267 19. WPA2 makes sure that packets have not been intercepted or tampered with in any way. ANS: T PTS: 1 REF: 283 20. A cryptographic algorithm is a word, number, or phrase that must be known to encrypt or decrypt a message. ANS: F PTS: 1 REF: 285 MODIFIED TRUE/FALSE 1. The Internet is the world’s largest example of a(n) LAN. _________________________ ANS: F, WAN PTS: 1 REF: 247
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2. In the accompanying figure, the network in the middle is configured in a(n) bus topology. _________________________ ANS: F, ring PTS: 1 REF: 250 3. In the accompanying figure, the network on the bottom is configured in a(n) string topology.
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  • Fall '14
  • Accounting, Computer network, Wi-Fi, Wireless access point

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