cwna certified wireless network administrator official study guide phần 5 doc

... 930FCC:ISM902-928MHz2.4000-2 .50 00 GHz2.4000-2.48 35 GHz 5. 7 25- 5.8 75 GHzFCC:FCC:ISM2.400GHz2.4 25 2. 450 2.4 75 2 .50 0IEEE:ISM 5. 7 25 GHz 5. 7 75 5.8 25 5.8 75 5.000GHz 5. 250 5. 500 5. 750 6.000 5. 7 25 - 5. 8 25 GHz 5. 25 - 5. 35 ... 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, ...  N-type CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. 149 Chapter 6 – Wireless LAN Organizations and Standards Lower Band The lower band is bound by 5. 15 GHz and 5. 25 GHz and...

cwna certified wireless network administrator official study guide phần 2 docx

... 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 feature of a wireless network ... 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 ... 5. Wireless LANs are primarily deployed in which one of the following roles? A. Backbone B. Access C. Application D. Core CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. 25 Chapter...

cwna certified wireless network administrator official study guide phần 3 doc

... MHz to 5 MHz, the maximum data 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 ... 4.2 illustrates where 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 4.4 An ... 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...

cwna certified wireless network administrator official study guide phần 8 doc

... Figure 10 .5 illustrates how protocol filtering works in a wireless LAN. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Chapter 10 – Wireless LAN Security 270 FIGURE 10 .5 Protocol ... GHz ISM band CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. 2 45 Chapter 9 –Troubleshooting Wireless LAN Installations FIGURE 9. 15 Antenna Wind Loading on Point-to-point networks No ... 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....

cwna certified wireless network administrator official study guide phần 4 pot

... 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 ... Converter CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Chapter 4 – Wireless LAN Infrastructure Devices 102 20. D. A USB adapter connects a computer’s USB port to a wireless network ... allow the administrator to protect the access point against weather and theft. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. 123 Chapter 5 – Antennas and Accessories Wireless LAN...

cwna certified wireless network administrator official study guide phần 7 ppsx

... size that will trigger CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. MAC and Physical Layers CWNA Exam Objectives ... overhead of up to 70%, while a congested wireless network remains somewhat constant at around 50 - 55 % throughput. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Chapter 8 – MAC and ... decreases. FIGURE 8.2 Dynamic Rate Shifting 11 Mbps11 -5. 5 Mbps 5. 5-2 Mbps2-1 Mbps CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Chapter 8 – MAC and Physical Layers 214 FIGURE...

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. 289 Chapter 10 – Wireless LAN Security 5. Which piece of information on a wireless LAN is encrypted with ... specific intent of the network designer, the cell sizes are too large. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. 291 Chapter 10 – Wireless LAN Security 15. Which of the following ... your wireless LAN D. Users can attach to the network from their car parked in the facility's parking lot CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Chapter 10 – Wireless...

cwna certified wireless network administrator official study guide phần 10 pptx

... control protocol. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Glossary CHAPTER 5 Appendix A – ... detect a collision. After CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. 355 Glossary independent basic service set (IBSS) - An IEEE 802.11-based wireless network that has no backbone ... (GSM). CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. 361 Glossary Wireless LAN Association (WLANA) - Founded March 1996, this organization's charter is the promotion of wireless...

cwna Certified Wireless Network Administrator Official Study Guide phần 1 pptx

... Wireless LAN Association 155 Competing Technologies 155 HomeRF 156 Bluetooth 156 Infrared Data Association (IrDA) 157 Infrared 157 Wireless LAN Interoperability Forum (WLIF) 158 Key ... (DSSS) 55 How DSSS Works 55 Direct Sequence Systems 55 Channels 56 Effects of Narrow Band Interference 58 FCC Rules affecting DSSS 58 Comparing FHSS and DSSS 58 Narrowband Interference 58 ... How FHSS Works 50 Effects of Narrow Band Interference 51 Frequency Hopping Systems 51 Channels 51 Dwell Time 52 Hop Time 53 Dwell Time Limits 53 FCC Rules affecting FHSS 54 Direct Sequence...

cwna certified wireless network administrator official study guide phần 6 pptx

... with wireless networks. Just as with WEP keys, certificates (which are authentication documents) are placed on CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Chapter 7 – 802.11 Network ... synchronize wireless communication on the wireless LAN. Beacons serve several functions, including the following. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. 173 Chapter 7 – 802.11 Network ... 7.3 Association 2.4 05 2. 452 2.487ClientAssociation RequestAssociation Response CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Chapter 7 – 802.11 Network Architecture 170...

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