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Q. Illustrate Stop-and-Wait Automatic Repeat request?
- Simplest flow as well as error control mechanism
- The sending device keeps a duplicate copy of the last frame transmitted until it receives an acknowledgement
- Frames signifies alternately numbered as 0 and 1
- ACK for frame0 = ACK 1 and for frame1= ACK0
- Out of order frames as well as erroneous frames are discarded and no ACK is sent
- Timers
- Control Variables
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how to own cipher to encrypt and decrypt message by combine both substitution ans transposition algorithm using c program
What is net stat? Netstat is a command line utility program. It gives useful information about the current TCP/IP settings of a connection.
What is basic purpose of Routers
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