cwna certified wireless network administrator official study guide phần 9 pps

... security measures are not in place. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. 2 89 Chapter 10 – Wireless LAN Security 5. Which piece of information on a wireless LAN is encrypted with ... more wireless PC cards), site survey measurements can be efficiently completed with accuracy. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Chapter 10 –...

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... physical space. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Troubleshooting Wireless LAN Installations CWNA Exam Objectives ... equipment, as can be seen in Figure 9. 9. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. 227 Chapter 9 –Troubleshooting Wireless LAN Installati...

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... discussed. In addition to wireless LANs (WLANs), wireless personal area networks (WPANs), wireless metropolitan area networks (WMANs), and wireless wide area networks (WWANs) are also taking ... peacefully. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. 15 Chapter 1 - Introduction to Wireless LANs Answers to Review Questions 1. A. The most alluring featur...

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... allowing the administrator to control traffic across the wireless link. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. 83 Chapter 4 – Wireless LAN Infrastructure Devices In 192 6, the ... rate was increased to 10 Mbps. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Chapter 4 – Wireless LAN Infrastructure Devices 82 FIGURE 4 .9 A wireless...

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... additional access points. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Antennas and Accessories CWNA Exam Objectives ... for any CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. 93 Chapter 4 – Wireless LAN Infrastructure Devices scale wireless LAN environments providing a multi...

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... specified that wireless LANs may use. They are the 90 0 MHz, 2.4 GHz, and 5.8 GHz bands. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. CWNA Study Guide © Copyright 2002 Planet3 Wireless, ... Astronomy F M Research, Navigation Nav, Astronomy Nav. Nav. 10 MHz 100 MHz 1 GHz 10 GHz 90 0 MHz 91 0 92 0 93 0 FCC: ISM 90 2 -92 8MHz 2.4000-2.5000 GHz 2.4000-2.4835...

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... with wireless LANs is imperative for any good wireless LAN administrator. As a wireless LAN consultant, you will undoubtedly CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Chapter 9 ... GHz ISM band CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. 245 Chapter 9 –Troubleshooting Wireless LAN Installations FIGURE 9. 15 Antenna Wind Loading on...

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... (GSM). CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. 361 Glossary Wireless LAN Association (WLANA) - Founded March 199 6, this organization's charter is the promotion of wireless ... a traditional data link control protocol. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Glos...

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... Balancing 1 89 Power Management Features 190 Continuous Aware Mode 190 Power Save Polling 191 PSP Mode in a Basic Service Set 191 PSP in an Independent Basic Service Set 192 CWNA Study Guide © ... 47 Uses of Spread Spectrum 48 Wireless Local Area Networks 48 Wireless Personal Area Networks 49 Wireless Metropolitan Area Networks 49 FCC Specifications 49 Frequency Hoppin...

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... original 802.11 standard was started in 199 0 and finished in 199 7. It underwent several revisions after 199 7, the final being the 199 9 revision. Since the 199 9 version of 802.11, there have been ... data on the wireless network, guaranteeing that all traffic is from authenticated devices only. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. 197 Chapter 7 – 802....

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