Flashcards
data exchange, codec ,packet exchange, serial, parallel, simplex, half duplex and full duplex
Cards in this deck (15)
- 1—Packet of data exchange diagram
- 2—Codec diagram
- 3Packet switchingData transmission in which a message is broken into a number of parts which are sent independently, over whatever route is optimum for each packet, and reassembled at the destination.
- 4Advantages of packet switchingpackets choose different routes, so traffic flow is efficient
big files can still be sent and don't clog up networks
packets give security benefits because if intercepted the hacker will only have one file - 5Disadvantages of packet switchingif one or more packet is lost or corrupted during transmission, the whole file will not be received correctly
- 6SimplexSimplex- one way
signals go in one direction at a time
Example: radio, you get audio from it but can't speak back - 7Half duplexHalf duplex- take turns
signals go in both direction but not simultaneously
Example: walkies talkie you can't speak at the same time, only in turns - 8Full duplexFull duplex- two way
signals go in both directions at the same time
Example: mobile phones, you can speak at the same time, both you and the other client - 9Serial transmissionBits of data are transferred one at a time over wire
- 10Benefits of serial transmissionGood over large distance
- 11Limitations of serial transmissionComplex because data has to be broken into individual bits
- 12Parallel transmissionBits of data transferred simultaneously- A whole byte can be transferred at the same time
- 13Benefits of parallel transmissionFaster because more bits transferred per second
- 14Limitations of parallel transmissionOnly for shorter distances eg 5 meters
- 15—
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- Flashcards on data exchange, codec ,packet exchange, serial, parallel, simplex, half duplex and full duplex , created by Rahat Ahmed on 09/01/2019.
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- Rahat Ahmed
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