Yes, everyone did, like they knew of prisons or courts.
No. Most Jews were unaware of the existence and purpose of the Concentration Camps and the Death Camps.
Bruno sawed a concentration camp, but did not know it was a concentration camp.
I didn't think she know that time .
It was hard for the Jews.They were forced to work and forced to wear stripy pyjamas and sleep together in grotty rooms they didnt know what was going to happen
Herman goering was in charge of the the first built concentration camp. I don't really know how many he killed.
Pretty much all concentration camps had a railway track near to the camp where the deportees would arrive from. The concentration camp which people most likely to know which had a rail track going into the camp would be Auschwitz Birkenau.
Most Germans did know, at least that the camps existed. Some kidded themselves that they were just forced labor camps. Some knew they were death camps, but as it was "just Jews", they didn't care.
Bergen-Belson concentration camp.
they werent, some jews were hiding
It is not clear what you want to know. The smallest camp? The one with fewest survivors, or a camp one hardly ever hears about?
Your question is unclear. As a many Jews were in the camps it is safe to assume that they knew of them.
At the beginning of the excerpt in "Night" by Elie Wiesel, Wiesel is in a train car with other Jews being transported to the Auschwitz concentration camp.