Download Data, Network, & Internet Communications Technology by Ata Elahi PDF

By Ata Elahi

This thorough primer examines the technological elements of networking via a pragmatic technique. Readers will be trained neighborhood quarter networks (LANs), broad zone networks (WANs), the net, instant LANs, instant MANs, voice over IP (VoIP), in addition to asynchronous move mode (ATM) and community safety. Introductory chapters on foundational issues, comparable to facts communications and desktop structure supply readers the data base they should comprehend extra advanced networking strategies. This booklet successfully makes use of a pragmatic method of networking instead of a strict concentrate on concept or math, and calls for no past history in communications expertise.

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Detect a single error and c. detect one or correct it more b. detect double errors and d. correct more than correct them one error • CHAPTER 2 10. Convert the followlnK hln 11. Of the following digital encodings, carries the clock pulse. c. RZ a. Manchester encoding b. NRZ d. RS-232 (IJIOOOll 12. The decimal value for (111101)2 is ___' a, 44 c. 61 b. 63 d. 52 13. The hexadecimal value for (111110111)2 is _ __ a. 1F6 c. 1F7 14. The binary value for 45 is ___, c. 101111 a. 011111 b. 101101 13. Convert the word D1(il 14.

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. 15 12. The network used for office buildings is _ __ a. LAN c. WAN b. MAN d. Internet 13. The topology used for Ethernet is a ___' a. bus c. ring b. star d. a and b 14. The Internet is a collection of LANs connected together by _ __ a. routers c. gateways b. switches d. repeaters 15. Computers on a campus are connected by _ __ a. LAN c. MAN d . Internet b. WAN Data Comm ,, OUTLINE • Short Answer Questions 1.

FCS is n bits, and it is dulo-2 division. FCS, which is the remainder from 'he transmitter will transmit frame T == Tis k + n bits. eiver divides T by P using modulo-2 ision generates a remainder of zero, Otherwise the frame contains one or eck Sequence (FCS) for the following 11010, K == 6 bits CRC polynomial and architecture. 8. Represent P = 1101101 by polynomial. 23. is added to 2 n*M, and the transmitter he receiver. divides Tby P, and if the result has a in the frame. Otherwise the message ion takes time, special hardware is The CRC method uses a special integrated circuit (lC) to generate the FCS.

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