Apoliceman's whistle has a a. high pitch b. low amplitude c. low pitch

How can you tell if someone sent you a text message to your email instead of a email

How would you categorize the software that runs on mobile devices? break down these apps into at least three basic categories and give an example of each.

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.