Computer Networking
Microprogramming is

programming of minicomputers
None of these
assembly language programming
macro programming of microcomputers
control unit programming

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Computer Networking
The main difference between synchronous and asynchronous transmission is

the pulse height is different.
None of these
the bandwidth required is different
the clocking is derived from the data in synchronous transmission
the clocking is mixed with the data in asynchronous transmission

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Computer Networking
The difference between a multiplexer and a statistical multiplexer is

Multiplexer use X.25 protocol, while statistical multiplexers use the Aloha protocol
Multiplexers often waste the output link capacity while statistical multiplexers optimize its use
Multiplexers use Time Division Multiplexing (TDM) while statistical multiplexers use Frequency Division Multiplexing (FDM)
None of these
Statistical multiplexers need buffers while multiplexers do not need buffers

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Computer Networking
Two computers that communicate with each other use a simple parity check to detect errors for ASCII transmissions. Which of the following events will always lead to an undeleted error?

one bit or any odd number of bits inverted in a block of data during transmission
one bit or any odd number of bits inverted in a byte during transmission
two bits or any even number of bits inverted in a block during transmission
two bits or any even number of bits inverted in a byte during transmission
None of these

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