Brian is selecting an authentication protocol for a ppp connection. he would like to select an option that encrypts both usernames and passwords and protects against replay using a challenge/response dialog. he would also like to re-authenticate remote systems periodically. which protocol should he use? group of answer choices
leap
pap
chap
eap

Which of the following statements is incorrect in relation to processes: while, strictly speaking, at any instant of time, the cpu is running only one process, in the course of 1 second, it may work on several of them, giving the illusion of parallelism a process is just an instance of an executing program, including the current values of the program counter, registers, and variables processes can be created when an operating system is booted, created by the user, or a running process can create children processes there is a master process, which when started can last forever, and is not killable