Computer Networking
What frequency range is used for microwave communications, satellite and radar?

Low Frequency : 30 kHz to 300 kHz
Extremely High Frequency :30,000 MHz
Super High Frequency : 3000 MHz to 30000 MHz
Medium Frequency : 300 kHz to 3 MHz
None of these

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Computer Networking
Error rate is

a check bit appended to an array of binary digits to make the sum of all the binary digits.
None of these
a code in which each expression conforms to specific rules of construction, so that if certain errors occur in an expression, the resulting expression will not conform to the rules of construction and
the ratio of the number of data units in error to the total number of data units
an error-detecting code based on a summation operation performed on the bits to be checked.

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