By Ata Elahi
This thorough primer examines the technological features of networking via a realistic strategy. Readers will study neighborhood region networks (LANs), huge region networks (WANs), the web, instant LANs, instant MANs, voice over IP (VoIP), in addition to asynchronous move mode (ATM) and community protection. Introductory chapters on foundational issues, comparable to info communications and computing device structure provide readers the data base they should comprehend extra advanced networking innovations. This publication successfully makes use of a realistic method of networking instead of a strict specialize in concept or math, and calls for no previous history in communications expertise.
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Extra resources for Data, Network, & Internet Communications Technology
Sample text
For example, cable TV ld mode because it carries multiple chan r the cable. Broadband mode frequently Voltage ~brJ -s represent binary values in the form of digital signal must know the timing of end of each bit. 16 Polar encoding signals Bipolar Encoding 0 lIt • Tim' In bipolar encoding, signal voltage varies in three levels: positive, zero, and negative voltage. One of the most popular bipolar encoding methods is alternate mark inversion (AMI). 17. 17 Bipolar encoding signals Voltage s o -s Manchester Encoding Manchester, and Non-Return to Zero are used in LANs, and Non-Return to technique is described next.
For example, the character B in unicode is U0042H (U rep resents unicode). The ASCII code is represented between (00)16 to (FF)16. For converting ASCII code to unicode, two zeros are added to the left side of ASCII code; therefore, the unicode to represent ASCII characters is between (0000)16 to (00FF)16. 4 shows some of the unicode for Latin and Greek characters. Unicode is diVided into blocks of code, with each block assigned to a specific language. 5 shows each block of unicode for some different languages.
Ring d. mesh 7. In a topology, all stations are connected in cascade. a. star c. tree b. bus 8. A topology is a combination of different topologies con nected together by a backbone cable. a. star c. bus b. ring d. hybrid 9. The network topology that uses a hub is ___. a. ring c. star b. bus d. mesh 10. The type of topology that uses multi-point connections is a _ __ a. bus c. ring b. star d. full mesh 16 • CHAPTER 1 11. A fully connected network with five stations requires ___' a. 5 c. 20 b. 10 d.