*Mcqs* 1.Why optical fibre is used? *more reliability and travel long distance* 2. Automated tool is required that tests to see whether the given computer is online or not. *PING* 3.IP configuration command name? *ipconfig* 4.One mcqs is from error detection n correction and is *CRC*(Don't skip lec 4-6) 5. Encoding used in Ethernet is *Manchester encoding* 6. Want to send messages to all stations on the LAN which channel is used? *Broadcast* 7. Preamble bytes 8(bits puchi thi which are *64* ) 8. Twisted pair cable uses *RJ-45 connecter* 9. A *repeater* is used to increase the signal strength and amplifying thr signal. 10.VC virtual channel use *24 bits* *Questions* 1.If there are 10 computers in our network, then which routing scheme is best to use for it? *Static round cz