In Excel, you can create simple ________, which are collections of data related to a particular topic or purpose

Your organization needs to deploy its network so that all servers are isolated from the rest of the internal resources. In addition, Internet-facing systems must be isolated on a demilitarized zone (DMZ) from the internal network. How many firewalls should you deploy?

A. one B. two C. three D. four

Who is responsible for the management of the Internet root servers?

A. Internet Assigned Numbers Authority (IANA) B. Institute of Electrical and Electronics Engineers (IEEE) C. American Registry for Internet Numbers (ARIN) D. International Standards Organization (ISO)