Write a python program to find factorial, use exception handling and display an appropriate message if the user inputs alphabets instead of the number. Emulate Index error for a list and handle that exception. Find factorial for all numbers in a given list and display the result.

1. which of the following statements are true about routers and routing on the internet. choose two answers. a. protocols ensure that a single path between two computers is established before sending packets over it. b. routers are hierarchical and the "root" router is responsible for communicating to sub-routers the best paths for them to route internet traffic. c. a packet traveling between two computers on the internet may be rerouted many times along the way or even lost or "dropped". d. routers act independently and route packets as they see fit.