[mod2-04] upgraded to 2016 layout, usual fixes, major stuff:
[mod2-04] upgraded to 2016 layout, usual fixes, major stuff:

* next-hop is the *gateway to that network*
* a default static route is chosen, gets to be gw of last resort
* routing protocol reacts (to TC), hence dynamic
* highlighted routing protocols in CCNA curriculum

hlcs/advanced-networking,hlcs/advanced-networking