2 CHAPTER 7: learning OUTCOMESExplain the five various networking elements creating a connected world. Identify the benefits of a linked world. Determine the obstacles of a linked world. Describe the different wireless network categories. Define the different wireless network business applications. Identify the benefits of business mobility.
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Determine the difficulties of service mobility.
3 OVERVIEW the A linked WORLDNetwork Categories regional Area Network (LAN)—Connects a team of computers in close proximity, such as in one office building, school, or home vast Area Network (WAN)—Spans a large geographic area such together a state, province, or nation Metropolitan Area Network (MAN)—A large computer network usually extending a city
4 OVERVIEW the A associated WORLDNetwork providers National company Providers (NSPs)—Private suppliers that own and also maintain the worldwide backbone the supports the web Network accessibility Points (NAPs)—Traffic exchange point out in the routing pecking order of the net that attach NSPs regional Service carriers (RSPs)—Offer Internet business by connecting to NSPs, but they likewise can affix directly come each various other
5 OVERVIEW that A associated WORLDNetwork accessibility Technologies Bandwidth—The maximum quantity of data that have the right to pass native one point to another in a unit the time bit Bit price Modem Broadband—A high-speed Internet link that is constantly connected Digital Subscriber Line internet Cable connection T1 lines
6 OVERVIEW the A connected WORLDNetwork Protocols Protocol—A standard that states the style of data and the rule to it is in followed throughout transmission Transmission control Protocol/Internet Protocol (TCP/IP)—Provides the technical foundation for the public Internet as well as for large numbers of personal networks Domain name System—Converts IP addresses into domain names
7 OVERVIEW the A linked WORLDNetwork Convergence Network Convergence—The efficient coexistence that telephone, video, and data interaction within a solitary network, supplying convenience and also flexibility not possible with separate facilities Unified interaction (UC)—The integration the communication channels into a single service Peer-to-Peer (P2P)—A computer network that counts on the computer power and bandwidth that the entrants in the network rather than a centralized server Voice end IP (VoIP)—Uses IP an innovation to transmit phone call calls net Protocol TV (IPTV)—Distributes digital video clip content using IP throughout the Internet and private IP networks
8 BENEFITS the A linked WORLDSharing resources The major resources because that sharing include: Intranet, Extranet, and Virtual private Network Providing opportunities Using networks, they have the right to order parts electronically as soon as needed, reducing the require for big inventories and enhancing performance Reducing take trip Networks administer the means for videoconferencing
9 CHALLENGES of A connected WORLDSecurity SSL Certificate—An electronic document that confirms the identification of a website or server and verifies that a public key belongs to a trusted individual or company Secure Hypertext deliver Protocol (SHTTP or HTTPS)—A combination of HTTP and SSL to carry out encryption and secure identification of an web server Social, Ethical, and also Political issues Digital Divide—A worldwide gap giving advantage to those with access to an innovation
10 WIRELESS NETWORK CATEGORIESPersonal Area Networks personal Area Networks (PAN)—Provides interaction over a quick distance the is intended for use with tools that are owned and also operated by a single user Bluetooth—Wireless PAN technology that transmits signals over short distances between cell phones, computers, and other gadgets Wireless LANs Wireless LAN (WLAN)—A regional area network that offers radio signals to transmit and receive data over ranges of a couple of hundred feet Wireless Fidelity (Wi-Fi)—A means by i beg your pardon portable devices can affix wirelessly come a local area network, using accessibility points the send and receive data via radio waves
11 WIRELESS NETWORK CATEGORIESWireless male Wireless male (WMAN)—A city area network that offers radio signal to transmit and also receive data global Interoperability because that Microwave accessibility (WiMAX)—A communications technology aimed at offering high-speed wireless data over metropolitan area networks Wireless WAN—Cellular communication System Wireless WAN (WWAN)—A large area network that uses radio signal to transmit and also receive data Smartphone—Offer much more advanced computing capacity and connectivity than straightforward cell phones
12 WIRELESS NETWORK CATEGORIESWireless WAN—Cellular communication System 3G—A company that brings wireless broadband to cellphones Streaming—A an approach of sending out audio and video files end the web Wireless WAN—Satellite communication System Satellite—A space station the orbits the earth receiving and transmitting signal from Earth-based stations end a wide area
13 BUSINESS APPLICATIONS that WIRELESS NETWORKSRadio-Frequency to know (RFID)—Uses digital tags and labels to identify objects wirelessly over quick distances global Positioning mechanism (GPS)—A satellite-based navigation device providing incredibly accurate position, time, and also speed information geographical Information mechanism (GIS)—Consists that hardware, software, and also data that carry out location information for display on a multidimensional map Location-Based services (LBS)—Applications that use location info to carry out a service
14 BENEFITS OF company MOBILITYEnhances mobility offers immediate data access Increases location and monitoring capability Improves work circulation Provides mobile business opportunities Provides alternate to wiring
15 CHALLENGES OF company MOBILITYThe mobile employee has come to be the norm rather than the exception, moved by way of living choices, productivity gains, and modern technology improvements Protecting versus theft Protecting wireless connections avoiding viruses ~ above a mobile an equipment Addressing privacy comes to with RFID and also LBS