DoS attacks could target computing capacity by exhausting processes and CPU time. In Linux, we can use the command "ulimit" to stop this kind of DoS attacks. Show and discuss the two options of "ulimit" that are needed to stop the attack by limiting processes and CPU time?

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.