Computer Networking
Which of the following TCP/IP protocol allows an application program on one machine to send a datagram to an application program on another machine?

UDP
X.25
SMTP
None of these
VMTP

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

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

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