Consider the following code snippet: Scanner in = new Scanner(. . .); in. useDelimiter("[A-Za-z]+"); What characters will be read in using this code? Only alphabetic characters will be read in. Only numeric characters will be read in. Only non-numeric characters will be read in. Only non-alphabetic characters will be read in.

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.