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Repeaters
- Operate only in physical layer
- Connects two segments of the same LAN
- Both segments must be of the same protocol
- Only forwards frames; does not filter
CSMA/CD - A Simple Definition A network station wishing to broadcast will first check the cable plant to make sure that no other station is currently transmit
modern technology in world of 21 century
Explain Presentation layer in OSI model
Time out Timers are used to protect against lost packet. Each packet must have its own logical timers since only a single packet will be retransmitted after timeou
what is similarity of wifi and 3g
restore the scrambled bits to their original order
NETWORK OWNERSHIP: There are two types in this case: 1. Private Network 2. Public Network
Q. What are the important benefits of computer network? Ans: Important benefits of computer networks are: - Resource sharing - Higher reliability - Higher flexibili
Q. Unshielded Twisted Pair - transmission media? - A most common kind suitable for both voice and data transmission - Categories are determined by chain quality - Cat 3 c
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
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