Computer Networking
Start and stop bits are used in serial communication for

Error correction
Slowing down the communication
Synchronization
Error detection

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Computer Networking
Bulletin board system

converts analog signals to digital signals
is a modem capable of accepting commands
is a public access message system
None of these
converts digital signals to analog signals

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Computer Networking
Which of the following technique is used for Time-To-Line (TTL)?

All of these
a technique used by protocols in which a lower level protocol accepts a message from a higher level protocol and places it in the data portion of the low level frame
One of the pieces that results when an IP gateway divides an IP datagram into smaller pieces for transmission across a network that cannot handle the original datagram size.
None of these
a technique used in best-effort delivery system to avoid endlessly looping packets.

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