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

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

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Computer Networking
When setting up Frame Relay for point-to-point subinterfaces, which of the following must not be configured?

The Frame Relay encapsulation on the physical interface
The subinterface type as point-to-point
The local DLCI on each subinterface
An IP address on the physical interface
PAP

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