Recruiter called, ask me some question concerning my background, ask me if I was willing to take a online assessment, there are 4 test to choose, I took the network exam.The next step was a phone interview. He ask question concerning the test you choose, and firewall questions. What is mss, TCP handshake, what type in modes in ipsec, how many host in /27, describe DHCP, how DNS works,what happen when you put www.amazon.com in the browser,when and why did you use wireshark, what's mtu, if you had no connection and thr address of 169.254 what does this means and how to solve the issue.difference between odor and bro, bgp attributes, ospf area, LSA types