"CIOs are hired for their strong IT background, years of experience, and strong leadership skills. Instead of technical questions, expect to discuss the highlights and lowlights of your IT career, as well as how you have shown leadership in other positions or projects. Looking towards the future, employers will also ask about what you plan to implement in the business, as well as test you on your knowledge of current advancements in the field. Come with a confident attitude and a desire to really play an active role in the company."
Why are point to point VPNs not exactly the best way to connect LANS
The rekeying that occurs plays havoc with monitoring software.
The rekey interval is usually 1 or 8 hours, by default. It can be made longer if desired. The biggest downsides I see of VPNs are 1) No firm SLA - VPNs are dependent on the Internet, and thus prone to any performance issues or outages. 2) Limited Scalabilty - As the network expands or changes, all the tunnels must be manually updated (unless you're running a dynamic routing protocol across them). 3) Limited features - For example, it's impossible to bridge the same subnet across a VPN. 4) Complexity - IPSec has lots of options, and if both sides don't match exactly, the tunnel will have problems. This is a big headache if you don't control the equipment on both sides of the tunnel.