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Question 1 Discuss the architecture of new generation networks.
Question 2 Explain the functioning of datagram packet switching and virtual circuit packet switching
Question 3 Describe WDM
Unguided Media: Wireless - A Wireless communication transporting electromagnetic waves without a physical conductor Wireless Propagation Methods - Ground - radio
Retransmission of packets The disadvantage of thronging away a correctly received packet is that the subsequent retransmission of the packet might be lost or garbled and
Q. Show the Character-level Encryption? - Substitutional - Monoalphabetic - simplest form; also called Caesar cipher - Every character is replaced with another character
define distortion
Q. Show Nonreturn to Zero encoding? - Value of signal is for all time positive or negative - NRZ-L Signal level depends on bit represented; positive typically means 0
Q. Explain Full Duplex data transmission? - Have two separate Communication channels as well as use each one for simplex Data traffic (in different directions). - If this is
What are Stored procedures? A stored procedure is s named collection of SQL statements and procedural logic that is compiled, verified and kept in a server database. It is typi
Explain Persistence timer? To deal with the zero-size windows What if a receiver advertises that the window size is 0 (by sending ACK) and this ACK is lost? - A
Troubleshoot and Correct VTP and Configuration Errors When all errors are corrected, you should be capable to ping PC4 from PC1, PC5 from PC2, and PC6 from PC3. You should also
Medium Earth Orbiting satellite is an orbit which is located just above the few hundred miles to a few thousands above the earth surface. It is of higher advantage than Low orbit s
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