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We analyzed the different components of wireless LANs. We explored different configurations in which wireless LANs can be used. 11 is perhaps the most appropriate existing standard for wireless LANs. 11 standard and its extensions in detail. 11 is a working group of the IEEE 802 LAN/MAN Standards Committee (IEEE 802 LMSC). 11 Working Group is to develop the physical (PHY) and the media access control (MAC) layer standards for wireless LAN. In this chapter we examine the wireless standards that the IEEE 802 LMSC has approved and those that are up and coming.
The typical range for a microwave−based system in a closed office environment is about 120 feet. The big advantage to MW systems is higher throughput, as MW systems do not have the overhead involved with spread spectrum systems. MW−based adapters are normally used in commercial settings. Radio Radio frequency (RF)−based wireless LANs are by far the most popular wireless LANs in the United States. 5). Spread spectrum modulation techniques are defined as being those techniques in which the following occur: 1.
A twisted pair Ethernet adapter connects to the network with a twisted pair cable and follows the IEEE Ethernet standard. Commonly used network adapters include Ethernet NICs and Token Ring NICs. Networking Cable and Physical Connections In all wired networks, an NIC is connected with the network through NIC−supported connectors and cables. There are two major types of cables used with LANs, these are twisted pair cable and coaxial cable. 12) are available both as shielded and unshielded. The cable has four pairs of wires inside the jacket.
ActualTests Implementing Cisco Security Monitoring Analysis And Response System Exam 642544