cwna certified wireless network administrator official study guide phần 4 pot

... Ranges from 14- 64 Parabolic Dish Ranges from 4- 25 Ranges from 4- 21 CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. 101 Chapter 4 – Wireless LAN Infrastructure Devices 10. C. Wireless ... additional access points. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Antennas and Acces...

Ngày tải lên: 14/08/2014, 14:20

... logarithm CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Chapter 1 - Introduction to Wireless LANs 16 11. A. The first wireless LAN standard was the 802.11 standard using the 2 .4 GHz ... discussed. In addition to wireless LANs (WLANs), wireless personal area networks (WPANs), wireless metropolitan area networks (WMANs), and wireless wide area networks...

Ngày tải lên: 14/08/2014, 14:20

... example, the sequence is: 1. 2 .44 9 GHz 2. 2 .45 2 GHz 3. 2 .44 8 GHz 4. 2 .45 0 GHz 5. 2 .45 1 GHz FIGURE 3.2 Single frequency hopping system 2 .40 00 2 .48 35 Transmission Frequency (GHz) Elapsed ... an access point is used on a wireless LAN. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. 75 Chapter 4 – Wireless LAN Infrastructure Devices FIGURE 4....

Ngày tải lên: 14/08/2014, 14:20

... 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, ... 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 contained in Figure 6.3 is not covered...

Ngày tải lên: 14/08/2014, 14:20

... 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...

Ngày tải lên: 14/08/2014, 14:20

... 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...

Ngày tải lên: 14/08/2014, 14:20

... still be able to gain access to the network. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Chapter 11 – Site Survey Fundamentals 3 14 FIGURE 11.8 Wireless Sniffer screenshot ... more wireless PC cards), site survey measurements can be efficiently completed with accuracy. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Chapter 10 – Wire...

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 344 ... requirements  Outdoor antenna placement  Spot checks CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc...

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... Summary 240 Types of Interference 241 Narrowband 241 All-band Interference 243 Weather 244 Wind 244 Stratification 245 Lightning 245 Adjacent Channel and Co-Channel Interference 245 Adjacent ... Chapter 4 Narrow Band Transmission 46 Spread Spectrum Technology 47 Uses of Spread Spectrum 48 Wireless Local Area Networks 48 Wireless Personal...

Ngày tải lên: 14/08/2014, 14:20

... FIGURE 7.3 Association 2 .40 5 2 .45 2 2 .48 7 Client Association Request Association Response CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Chapter 7 – 802.11 Network Architecture 170 ... synchronize wireless communication on the wireless LAN. Beacons serve several functions, including the following. CWNA Study Guide © Copyright 2002 Planet3 Wireles...

Ngày tải lên: 14/08/2014, 14:21