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Communicationshard#1287

CPDLC message types include:

A

Clearances, information, requests, and reports in standardized text format

Correct

B

Voice messages only

C

Radar returns

D

TCAS advisories

Explanation

CPDLC supports uplink messages (ATC to pilot: clearances, instructions, information) and downlink messages (pilot to ATC: requests, reports).

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