Computer Networking
How many digits of the DNIC (Data Network Identification Code) identify the country?

first six
None of these
first three
first five
first four

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Computer Networking
The main difference between synchronous and asynchronous transmission is

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

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