Thank you.Nope, DACs don't have anything to monitor - at least not passive ones. (If you've got an active DAC, I suspect your wallet knew it when you purchased it.)
I never knew there was an Active DAC vs Passive DAC. Also learned "In 2009, 10Gbps SFP+ transceivers were introduced. " (was not aware that tech is 11 years old.)
From my brief reading, it seems Active DAC was much more commonly used with older Switches. Is there any reason/need to use Active DAC cables on modern switches?