A: The set of students who are computer science majors. B: The set of students who are taking CSE 191. Express the following sets in terms of A and B. Use set operators when necessary. a) The set of computer science majors who are taking CSE 191. b) The set of computer science majors who are not taking CSE 191. c) The set of students who are either computer science majors or are taking CSE 191. d) The set of students who are either not computer science majors or are not taking CSE 191

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.