Adding an excercise on the hub_administration lesson

episodes/hub_administration.md

@@ -20,3 +20,30 @@ exercises: 0
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+Exercises
+
+:::::::::::::::::::: challenge
+
+### Why is my programme running slow?
+
+Suppose a user writes a program to analyze a dataset. On their laptop using testing data the program works and is reasonably fast. When the user tries to run this same program on a real dataset their JupyterHub environment is it frustratingly slow.
+Why is their interactive computing session being so slow?
+
+What is the solution to this exercise?
+
+a. It is caused by a poor internet connection between my home computer and the cloud.
+b. Too many other users are using the cloud server at the same time.
+c. I am trying to a computationally intensive task and the cloud computer has poor hardware.
+d. I am accessing a very large file that is not local to the cloud server being used.
+
+::::::::::: solution
+
+d. I am accessing a very large file that is not local to the cloud server being used.
+
+::::::::::::::::::::
+
+
+
+
+