cwna Certified Wireless Network Administrator Official Study Guide phần 1 pptx

... Concepts 11 1 Polarization 11 1 Gain 11 3 Beamwidth 11 3 Free Space Path Loss 11 4 The 6dB Rule 11 5 Antenna Installation 11 5 Placement 11 5 Mounting 11 6 Appropriate Use 11 6 Orientation 11 6 Alignment ... 802 .11 15 2 IEEE 802 .11 b 15 2 IEEE 802 .11 a 15 3 IEEE 802 .11 g 15 3 Major Organizations 15 4 Wireless Ethernet Compatibility Alliance 15 4 CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. viii ... Alignment 11 7 Safety 11 7 Maintenance 11 8 Power over Ethernet (PoE) Devices 11 8 CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Chapter 1 - Introduction to Wireless LANs 6 Using wireless...

cwna certified wireless network administrator official study guide phần 10 pptx

... wireless LANs. FIGURE 11 .17 Multi-tenant Office Buildings 3rd Floor2nd Floor1st FloorXYZ Corp.802 .11 b Wireless LANCoverage AreaProposed Wireless LAN for ClientABC Corp.802 .11 b Wireless ... has filtering and learning capabilities. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. 317 Chapter 11 – Site Survey Fundamentals FIGURE 11 .13 2.4 GHz DSSS phone as seen by a spectrum ... already using 802 .11 b, using 802 .11 a would avoid the interference of trying to coexist with another 802 .11 b network. However, it should be noted whether or not other 802 .11 a networks exist in...

cwna certified wireless network administrator official study guide phần 6 pptx

... operation of wireless LANs? A. 802 .11 B. 802 .11 a C. 802 .11 b D. 802 .11 g CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Chapter 7 – 802 .11 Network Architecture 18 0 FIGURE 7.7 ... Scientific, and Medical 17 . Which one of the following does NOT specify equipment that uses the 2.4 GHz ISM band? A. 802 .11 B. 802 .11 a C. 802 .11 b D. 802 .11 g E. 802.1x 18 . Which one of the ... 802 .11 -based standards published by the IEEE such as 802 .11 b and 802 .11 a. Several more drafts related to wireless LANs are currently on their way to becoming standards such as 802 .11 i, 802 .11 g,...

cwna certified wireless network administrator official study guide phần 2 docx

... For example, 802 .11 , 802 .11 b, 802 .11 g, and 802 .11 a are all specifications of wireless LANs systems whereas 802 .11 f addresses inter-access point protocol and 802 .11 i addresses wireless LAN security. ... a factor of 2 one time yielding the following: 1 mW x 10 = 10 mW 10 mW x 10 = 10 0 mW 10 0 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 ... in 19 97. Following 802 .11 was 802 .11 b raising the top speed to 11 Mbps and limiting use to DSSS technology only. Following 802 .11 b was 802 .11 a, which uses the 5 GHz UNII bands. The 802 .11 g...

cwna certified wireless network administrator official study guide phần 3 doc

... DSSS technology specified in 802 .11 b is significantly faster than that of 802 .11 FHSS. 802 .11 b compliant hardware is often as little as 1/ 3 of the price of 802 .11 FHSS hardware offering a much ... 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 19 26, the ... more easily. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. 69 Chapter 3 – Spread Spectrum Technology 11 . A, C. Implementations of DSSS hardware meeting the 802 .11 b standard are...

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. 10 1 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 Accessories CWNA Exam Objectives ... allow the administrator to protect the access point against weather and theft. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. 12 3 Chapter 5 – Antennas and Accessories Wireless LAN...

cwna certified wireless network administrator official study guide phần 5 doc

... use or in draft form:  802 .11  802 .11 b  802 .11 a  802 .11 g CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Chapter 5 – Antennas and Accessories 12 6 FIGURE 5.22 A sample of ... rate specified by the 802 .11 a standard is 54 Mbps. IEEE 802 .11 g 802 .11 g provides the same maximum speed of 802 .11 a, coupled with backwards compatibility for 802 .11 b devices. This backwards ... specifications for 802 .11 g are expected in mid to late 2002. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. 14 7 Chapter 6 – Wireless LAN Organizations and Standards FIGURE 6 .1 ISM and UNII...

cwna certified wireless network administrator official study guide phần 7 ppsx

... 802 .11 and 802 .11 b products on the market today. Barker Code and Complimentary Code Keying (CCK) are the types of spreading codes used in 802 .11 and 802 .11 b wireless LANs. CWNA Study Guide ... 219 Chapter 8 – MAC and Physical Layers 11 . 802 .11 b devices use what type of modulation at 11 Mbps? A. BPSK B. DPSK 12 . 802 .11 a devices use what type of modulation ... 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...

cwna certified wireless network administrator official study guide phần 8 doc

... specified as a center frequency +11 MHz and -11 MHz. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. 265 Chapter 10 – Wireless LAN Security FIGURE 10 .3 Centralized Encryption Key Server ... 9 .19 illustrates channel reuse. FIGURE 9 .19 Channel reuse Channel 1 Channel 1 Channel 1 Channel 11 Channel 11 Channel 6 Range Considerations When considering how to position wireless ... ISM band are the same width - 10 0 MHz. 802 .11 a equipment is new and significantly more expensive than 802 .11 b equipment and is not compatible with 802 .11 b or 802 .11 g equipment in any capacity....

cwna certified wireless network administrator official study guide phần 9 pps

... still be able to gain access to the network. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Chapter 11 – Site Survey Fundamentals 314 FIGURE 11 .8 Wireless Sniffer screenshot ... protocols are network security tools above and beyond what is specified by the 802 .11 ? Choose all that apply. A. 802.1x and EAP B. 8 011 .g C. VPNs D. 802 .11 x and PAP 16 . An enterprise wireless ... specific intent of the network designer, the cell sizes are too large. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. 2 91 Chapter 10 – Wireless LAN Security 15 . Which of the following...

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