Which two channels does an automatic identification system (AIS) transponder use to transmit and receive information broadcasts?

Correct Answer: Option A — 161.975 Mhz and 162.025 Mhz

AIS utilizes two dedicated VHF channels, AIS 1 (161.975 MHz) and AIS 2 (162.025 MHz), to facilitate the exchange of data. These frequencies are internationally designated for AIS operations to ensure interoperability between all SOLAS-compliant vessels and shore-based AIS infrastructure globally.