cwna certified wireless network administrator official study guide phần 3 doc

... filtering capabilities allowing the administrator to control traffic across the wireless link. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. 83 Chapter 4 – Wireless LAN Infrastructure ... application. The administrator can reset the device to factory defaults by using the hardware reset button on the device. CWNA Study Guide © Copyright 2002 Planet3 Wi...

Ngày tải lên: 14/08/2014, 14:20

... start out with 23 dBm. From this point, it's a simple addition/subtraction problem. 23 dBm - 6 dB + 9 dBi = 26 dBm. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. 33 Chapter 2 – ... transmitting device CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Chapter 2 – RF Fundamentals 34 In this example, we see that -26 dBm equals -10 -10 -3 -3. From t...

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... specified that wireless LANs may use. They are the 900 MHz, 2.4 GHz, and 5.8 GHz bands. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. CWNA Study Guide © Copyright 2002 Planet3 Wireless, ... (watts) 30 6 36 4 29 9 38 6 .3 28 12 40 10 27 15 42 16 26 18 44 25 25 21 46 39 .8 24 24 48 63 23 27 50 100 22 30 52 158 The specific information conta...

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... channel use 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. ... filtering works in a wireless LAN. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Chapter 10 – Wireless LAN Security 270 FIGURE 10.5 Protocol Filtering A...

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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 mul...

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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 ... size that will trigger CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. MAC and Physica...

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... CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Site Survey Fundamentals CWNA Exam Objectives Covered:  Understand ... still be able to gain access to the network. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Chapter 11 – Site Survey Fundamentals 31 4 FIGURE 11.8 Wireless...

Ngày tải lên: 14/08/2014, 14:20

... CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Glossary CHAPTER 5 Appendix A – RF in Perspective 34 4 ... access point. Users are a “collective client” on the wireless network. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Glossary 35 0 authentication - The proces...

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... 30 Watts (W) 30 Milliwatt 30 Decibels 30 dBm 32 dBi 34 Accurate Measurements 35 Key Terms 37 Review Questions 38 Answers to Review Questions 43 Spread Spectrum Technology 45 CWNA Study ... Hidden Node 230 Troubleshooting Hidden Node 231 Solutions for Hidden Node 232 Use RTS/CTS 232 Increase Power to the Nodes 233 Remove Obstacles 233 Move the Node 233 Near/Far...

Ngày tải lên: 14/08/2014, 14:20

... synchronize wireless communication on the wireless LAN. Beacons serve several functions, including the following. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. 1 73 Chapter 7 – 802.11 Network ... with wireless networks. Just as with WEP keys, certificates (which are authentication documents) are placed on CWNA Study Guide © Copyright 2002 Planet3 Wireles...

Ngày tải lên: 14/08/2014, 14:21