 
 <prompt> Wetin be di 2nd reason why data dey follow di best route? Given di previous question, write a context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: ```Network hardware, software and specifications, as well as the expertise of network management personnel dey important to make sure say data dey follow the best route, and upstream connections dey work well. E fit dey possible to balance between cost and efficiency.[citation needed]``` 