Computer Networking
With telecommunications and a personal computer you can

send letters to be printed and delivered by the post office
All of these
"download" free public domain programs
order goods at a substantial discount
None of these

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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?

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

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