Tha IP you are trying to access is block to use for Outside apart from hadoop cluster. You can't directly call or access it.
Only the person with the full access to cluster can view which we can't be shared with student.
Sorry for inconvenience but it is for security reason.
In which case request to change the ambari mapreduce logs of executions redorded elsewhere where studdents could see same to learn how the actual it works. Or coudl u provide any alternate way of seeing the execution log?