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

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

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Computer Networking
Which of the following summation operations is performed on the bits to check an error-detecting code?

Codec
Checksum
Broadband and baseband refer to the different frequencies at which infrared operates then transmitting signals in certain conditions
Coder-decoder
Attenuation

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