cwna certified wireless network administrator official study guide phần 10 pptx

... a traditional data link control protocol. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Glossary CHAPTER ...  Outdoor antenna placement  Spot checks CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. RF in Perspective Throughout ... servers CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Glossary 348 10BaseFx - IEEE standard for 10 Mbps baseband Ethernet over optical fiber. 10BaseTx - IEEE standard for 10 Mbps...

cwna Certified Wireless Network Administrator Official Study Guide phần 1 pptx

... Questions 100 Antennas and Accessories 103 RF Antennas 105 Omni-directional (Dipole) Antennas 105 Usage 107 Semi-directional Antennas 108 Usage 109 Highly-directional Antennas 110 Usage 110 ... classroom, industrial, and healthcare CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. xvi Introduction Introduction This Official CWNA Study Guide is intended first to help prepare ... PLANET3 WIRELESS, INC. SHALL NOT EXCEED THE LICENSE FEE PAID BY YOU TO PLANET3 WIRELESS, INC. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. xx Introduction Exam Objectives The CWNA...

cwna certified wireless network administrator official study guide phần 6 pptx

... 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 – 802.11 Network Architecture ... 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 ... 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...

cwna certified wireless network administrator official study guide phần 2 docx

... factor of 2 one time yielding the following: 1 mW x 10 = 10 mW 10 mW x 10 = 100 mW 100 mW x 10 = 1,000 mW 1,000 mW x 10 = 10, 000 mW 10, 000 mW x 2 = 20,000 mW = 20 watts So, we now see ... Power level chart -40dBm-30dBm-20dBm -10 dBm0dBm +10 dBm+20dBm+30dBm+40dBm 100 nW1uW 10 uW 100 uW1mW 10 mW 100 mW1,000mW 10, 000mW-12dBm-9dBm-6dBm-3dBm-0dBm+3dBm+6dBm+9dBm+12dBm62.5uW125uW250uW500uW1mW2mW4mW8mW16mW ... reference point would be -26 dBm. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Chapter 2 – RF Fundamentals 36 dB166. 110 40log101302.5log10log10=∗====∆mWWPPPif...

cwna certified wireless network administrator official study guide phần 3 doc

... 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 bridge in repeater ... 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 ... bridge CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Chapter 4 – Wireless LAN Infrastructure Devices 80 FIGURE 4.7 A point-to-point wireless bridge link Wireless BridgeServerWired...

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 ... 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 ISA devices do not support plug-n-play ... 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...

cwna certified wireless network administrator official study guide phần 5 doc

... 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, ... only extend to 100 meters and still be used for reliable data transmission, PoE should not be used on cable lengths over 100 meters. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. ... the administrator to move the power meter from one connection point to another throughout the wireless LAN while making output power measurements. CWNA Study Guide © Copyright 2002 Planet3 Wireless, ...

cwna certified wireless network administrator official study guide phần 7 ppsx

... 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 Physical Layers CWNA Exam Objectives ... parts: CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Chapter 8 – MAC and Physical Layers 206 A wireless LAN system will never drop from 11 Mbps to 10 Mbps, for example, since 10...

cwna certified wireless network administrator official study guide phần 8 doc

... medium. 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 ... 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. ... traversing the wireless segment. Wireless LAN sniffers or custom applications are typically used to gather information about the wireless network from a distance with a CWNA Study Guide © Copyright...

cwna certified wireless network administrator official study guide phần 9 pps

... B. 40-bit D. 128-bit CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Chapter 10 – Wireless LAN Security 278 the access points and the wired upstream network. As its name suggests, ... 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 ... & Roaming Requirements  Available Resources CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Chapter 10 – Wireless LAN Security 290 10. MAC filtering is NOT susceptible to which...

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