VBD is not accessible, because the RTDG has no functional nodes available
In the 'Practising What You Learnt' section, for lesson 'Testing Strategies En Masse With Simulations', Exercise 'Decisioning Simulations', Step 3d requests that Visual Business Director is opened.
Attempting to do this results in the error message:
"Visual Business Director is not accessible, because the real-time data grid (RTDG) has no functional nodes available. System administrators can set up RTDG nodes."
Hence exercise cannot be completed.