Watching Guide for "Routers for Dummies"

1. What does a router do? ___________________________________________________
   
   ______________________________________________________________________
   
   
2. (At about 1:12) What is in a packet that the router uses to figure out where the packet is
   supposed to go?
   
   _________________________________________
   
   
3. What historical event caused the development of the Internet?
   
   ______________________________________________________________________
   
   
4. What network existed already in the 1950s/1960s that was used for communication between
   computers?
   
   ______________________________________________________________________
   
   
5. (at 4:18) Circuit switching has these characteristics: ______________________________
   
   _________________________________________________________________________
   
   
6. Packet switching has these characteristics: ______________________________________
   
   ________________________________________________________________________
   
   
7. What was the very first message on the internet? __________________