Yea the explanation on this task is not good or correct at all.
Task states "Ensure periodic re-optimization occurs every minimal time interval" and the solution says to set the periodic timer to 180, as this is the minimal value.
However, in the CLI you can go down all the way to 90 seconds. So shouldnt it be 90 seconds??
Another point states "After an OOP event, the traffic class should retain the new exit for no less than 10 minutes". But the solution shows 6 minutes, with the command "holddown 360".
For your point about the "relative loss of no higher thant 3%" the answer shoule be "loss relative 30"; but the solution shows "loss relative 25". To calculate this you take 3% of 1000, which is 30. If you look at CLI with command "?" it explains that.
INE, please work on correcting the solutions on this task.