... network performance Wireless LAN Frames vs Ethernet Frames Once a wireless client has joined a network, the client and the rest of the network will communicate by passing frames across the network, ... one type of wireless frame With 802.3 Ethernet frames, once chosen by the network administrator, the same frame type is used to send all data across the wire just as with wireless Wireless frames ... all wireless LAN products, regardless of manufacturer We will explain the difference between Ethernet and wireless LAN frames and how wireless LANs avoid collisions We’ll walk through how wireless
Ngày tải lên: 14/08/2014, 14:20
... understanding of channel use with wireless LANs is imperative for any good wireless LAN administrator As a wireless LAN consultant, you will undoubtedly Trang 8find many wireless networks that have many ... overhead on the network 17 B The near/far problem is one that is addressed by the access protocols used by wireless networks This problem is seen in both cellular and wireless LAN networks When ... want to be responsible for as a wireless LAN administrator is a network that does not allow the users to do their jobs or achieve the connections that they require An administrator's second option
Ngày tải lên: 14/08/2014, 14:20
cwna certified wireless network administrator official study guide phần 9 pps
... will ensure that the wireless network remains as safely guarded as the wired network Keep Sensitive Information Private Some items that should be known only by network administrators at the ... detect your network, then your network is not susceptible to this kind of attack It may be tempting for network administrators to always use the maximum power output settings on all wireless LAN ... point and the wireless network clients C Between the switch and the router on the wireless network segment D In place of a regular access point on the wireless LAN segment 17 Networks using the 802.1x
Ngày tải lên: 14/08/2014, 14:20
cwna certified wireless network administrator official study guide phần 10 pptx
... weather causes disruption to wireless LANs However, you must be aware of, prepare and compensate for, these types of weather before the implementation of the wireless network Lifts and ladders could ... is very important if the user is to make productive use of the wireless LAN From the answers provided by the network manager or administrator, you will know to look for locations within the facility ... if any of the neighboring high-rises have wireless LANs FIGURE 11.17 Multi-tenant Office Buildings Proposed Wireless LAN for Client ABC Corp. 802.11b Wireless LAN Coverage Area Are there any
Ngày tải lên: 14/08/2014, 14:20
cwna Certified Wireless Network Administrator Official Study Guide phần 1 pptx
... Trang 1Vendor-neutral wireless networktraining and certification Trang 2CWNP™ Certification Program The Certified Wireless Network Professional Training & Certification Program ... popular networking certification programs leave off: wireless LANs Your study of wireless networking will help you bring together two fascinating worlds of technology, because wireless networks ... segment in networking Many new careers will be presenting themselves in support of the added responsibilities network administrators must deal with when they add wireless LANs to their networks
Ngày tải lên: 14/08/2014, 14:20
cwna certified wireless network administrator official study guide phần 6 pptx
... with an external VPN server VPN Server or Wireless Gateway L2 Connection L3 VPN Connection on the same wireless network The range of the wireless network will likely extend beyond the physical ... authentication It is important for the wireless network administrator to understand that neither Open System nor Shared Key authentication types are secure, and for this reason a wireless LAN security solution, ... a stronger, more flexible alternative is clear with wireless networks since more varied implementations abound with wireless than with wired networks Typically, user authentication is accomplished
Ngày tải lên: 14/08/2014, 14:21
Tài liệu AUDIT OF THE DEPARTMENT OF JUSTICE’S IMPLEMENTATION OF THE INTEGRATED WIRELESS NETWORK ppt
... Integrated Wireless Network Program After the agreement to pursue wireless communications options with Treasury in November 2001, the Justice Wireless Network Program was renamed the Integrated Wireless ... develop a technical design for the Justice Wireless Network, 3 Implement two pilot initiatives related to the development of the Justice Wireless Network, and 4 Develop a department-wide tool ... strategic policy, 4 The program was originally known as the Justice Wireless Network but was renamed the Integrated Wireless Network (IWN) For simplicity, we will refer to the project as the
Ngày tải lên: 18/02/2014, 04:20
Wireless Network Security? doc
... to secure your wireless computing environment Trang 3Warning:Wireless Network May Become Unstable 3Just a warning (We have permission to perform attacks against the wireless network and clients ... • “Nobody will find my wireless network” Wireless Security Misconceptions 31Above are what I believe to be the most common 5 wireless security misconceptions Now, some wireless security is better ... client computers Trang 2• Why wireless security is increasingly important • Wireless security misconceptions • Wireless Attacks - Detection & Prevention • Defensive Wireless Computing 2The roadmap
Ngày tải lên: 05/03/2014, 21:20
How To Set Up Wireless Network Security ppt
... “Properties” (or go to Start > Control Panel > Network) 2 Select your Wireless LAN Card, right click on the icon and select “Properties” Click on “Wireless Network” tab 3 Select the Access Point which ... Windows XP Wireless Utility as an example 2 Right click on “My Network Places” on your desktop and select “Properties” (or go to Start > Control Panel > Network) 3 Select your Wireless LAN ... Windows XP Wireless Utility as an example 2 Right click on “My Network Places” on your desktop and select “Properties” (or go to Start > Control Panel > Network) 3 Select your Wireless LAN
Ngày tải lên: 05/03/2014, 23:20
Wireless Network Security: An Overview docx
... Infrastructure-based wireless networks Infrastructure-less wireless networks Wireless Networks Wireless LAN in Access Point Mode Wireless Mesh Networks Cellular Telephone Networks Wireless LAN ... of Wireless Networks Infrastructure based wireless networks need fixed infrastructures such as basestation in cellular telephone networks and WiMAX networks or wireless access point (AP) in wireless ... thus wireless client stations communicate with each other directly in peer-to-peer manner These types of networks are also known as wireless ad hoc networks Network topology of wireless ad hoc network
Ngày tải lên: 22/03/2014, 15:21
Wireless Network Security: Vulnerabilities, Threats and Countermeasures ppt
... integrity, and availability Fig 1 Wireless networking components 2.1 Wireless Network Attacks 2.1.1 Accidental association Unauthorized access to company wireless and wired networks can come from a ... Securing Wireless Networks 6.1 Use of Encryption The most effective way to secure your wireless network from intruders is to encrypt, or scramble, communications over the network Most wireless ... other networks and network components The majority of computers sold to consumers today come pre-equipped with all necessary wireless Networks technology The benefits of wireless Networks include:
Ngày tải lên: 28/03/2014, 22:20
Wireless Network Security: RADIUS Server Installation doc
... (or go to “Start/ Settings/ Network” or double click a network icon which represents your wireless network on system tray where right down your screen) 3 Select your Wireless LAN Card right clicks ... on system tray where right down your screen) 3 Select your Wireless LAN Card right clicks and selects “Properties” 4 Click “Wireless Network” 5 Select the Access Point which you going to connect ... Step 1: Get a CA 1 Connect your computer to a network, which can connect to RADIUS Server (How ever wired or wireless connection, if you do use wireless connection please turn all security method
Ngày tải lên: 28/03/2014, 22:20
Báo cáo hóa học: " Wireless network positioning as a convex feasibility problem" pot
... cooperative networks and obtain two new distributed algorithms Simulation results show that the proposed algorithms are robust against non-line-of-sight conditions Keywords: wireless sensor network, ... 1 Introduction Wireless sensor networks (WSNs) have been considered for both civil and military applications In every WSN, position information is a vital requirement for the network to be able ... divided into two groups based on collaboration between targets: cooperative networks and non-cooperative networks In cooperative networks, the measurements between targets are also involved in the positioning
Ngày tải lên: 20/06/2014, 22:20
Báo cáo hóa học: "Research Article The Waterfilling Game-Theoretical Framework for Distributed Wireless Network Information Flow" pptx
... on Wireless Communications and NetworkingVolume 2010, Article ID 482975, 13 pages doi:10.1155/2010/482975 Research Article The Waterfilling Game-Theoretical Framework for Distributed Wireless Network ... allocation in the downlink of distributed wireless small-cell networks, where multiple access points (APs) or small base stations send independent coded network information to multiple mobile terminals ... interest for small-cell networks In fact, they have been recognized as an effective and low-cost architecture to provide wireless data rate access to Internet users [1,2] These networks consist of
Ngày tải lên: 21/06/2014, 17:20
WIRELESS NETWORK DEPLOYMENTS potx
... system, shown in Fig.l, is anintegrated network comprising a land base wire line telephone network and acomposite wired-wireless network The land base network is the traditionaltelephone system ... available literature on wireless networks focusses on wirelessaccess techniques, modem design technologies, radio propagation modeling,and design of efficient protocols for reliable wireless communications ... PCS networks Trang 10The next three parts of the book cover issues involved in deployment ofCDMA, TDMA, and Wireless Data networks The three chapters in Part IIconcern deployment of CDMA networks
Ngày tải lên: 27/06/2014, 09:20
cwna certified wireless network administrator official study guide phần 2 docx
... 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 ... design model is where users attach to the network. Wireless network devices are most generally installed in this capacity. There are times when wireless networks may be used in a distribution role, ... calculations. To a wireless LAN administrator, an understanding of RF concepts is essential to the implementation, expansion, maintenance, and troubleshooting of the wireless network. Radio...
Ngày tải lên: 14/08/2014, 14:20
cwna certified wireless network administrator official study guide phần 3 doc
... Chapter 4 – Wireless LAN Infrastructure Devices FIGURE 4.10 A sample wireless workgroup bridge FIGURE 4.11 A wireless workgroup bridge installed on a network Access Point Wireless Workgroup Bridge W i r e d ... or PDA computers that need wireless connectivity into the wireless network infrastructure. The wireless LAN client devices listed above provide connectivity for wireless LAN clients. It is ... layer 2 wireless connectivity only. Figure 4.6 shows an example of a wireless bridge, while Figure 4.7 illustrates where a wireless bridge is used on a wireless LAN. FIGURE 4.6 A sample wireless...
Ngày tải lên: 14/08/2014, 14:20
cwna certified wireless network administrator official study guide phần 4 pot
... one wireless network to another. Instead of manually having to reconfigure all of the wireless client’s settings each time you change networks, you may configure profiles for each wireless network ... the purpose of converting those network connections into wireless LAN connections. When you use a wireless Ethernet converter, you are externally connecting a wireless LAN radio to that device ... 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 using a standard PCMCIA...
Ngày tải lên: 14/08/2014, 14:20
cwna certified wireless network administrator official study guide phần 5 doc
... Wireless LAN Association The Wireless LAN Association's mission is to educate and raise consumer awareness regarding the use and availability of wireless LANs and to promote the wireless ... general. The Wireless LAN Association (WLANA) is an educational resource for those seeking to learn more about wireless LANs. WLANA can also help if you are looking for a specific wireless LAN ... use) is also license-free to others. Suppose you install a wireless LAN segment on your home network. If your neighbor also installs a wireless LAN segment in his home, his system may interfere...
Ngày tải lên: 14/08/2014, 14:20