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ADVANTAGE AND DISADVANTAGE OF WIRING SCHEMES:
Each of three wiring procedure has disadvantages and advantages, which are illustrate as follows:
RELIABILITY ISSUES:
Wiring that needs a transceiver for every connection does not affect the whole network if a transceiver cable is not connected. A cable cut happening in hub wiring only affects one device.
COST ISSUES:
Twisted pair Ethernet is the cost effective wiring that creates it so popular. Thicknet is the most expensive wiring, which is not used.
Figure
As given in the diagram eight offices are wired with
a) Thick Ethernet b) Thin Ethernet c) Twisted pair Ethernet
We may see that the length of wired varies in three procedures so cost varies in three methods.
Network layer duties Internetwork - Physical and Data link layers are jointly responsible for data delivery on the network from node to node
Time out The protocols name Go Back N is derived from the sender behaviour in the presence of lost or overly delayed packets. A timer will again be used to recover
What is a pseudo tty? A pseudo tty or false terminal enables external machines to connect by Telnet or rlogin. Without a pseudo tty, no connection can take place.
What are the main categories based on which applications of computer network can be categorized? The major areas under which the applications for computer network can be divide
After going through this part, you should be capable to: Describe the concepts of message passing programming; List out the various communication modes for communication
Q. Show the Importance of Security? The Internet presents enormous business opportunities. The Internet is open to public, vulnerable to various attacks. One of the major
802.11g OFDM a) Uses OFDM with same 2.4 GHz band b) Achieves a 54-Mbps data rate c) Works with same 802.11b equipment
Question : a) Give three examples of vulnerable services which are among the overwhelming majority of successful attacks. b) Name the five outside sources which can be the
a) Which of the well-known Internet applications uses a separate TCP connection for control? b) The separate control connection as in (a) above is an example of control (sig
A hypertext link is a special tag that links single page to another page or resource. If you click the link, the browser goes to the link's destination.
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