This is a very subjective question... I want ten phone screening questions for a network engineer with say four years experience. I'm feeling lazy and uncreative today. So figured I'd turn to my EE brothers (and sisters) to deliver 10 questions that will deliver us someone worthy of further interviews. Questions could involve network design or trouble shooting and focues around Cisco routers, switches, firewalls and VPN devices. Anything around IP v4 is fair game.