The main reason to add a(n) ____ is to add visual interest to paragraphs and to distinguish them from one another.

Users report that an internal file server is inaccessible. Of the following commands, which would be the MOST useful in determining network-layer connectivity?

A. dig B. nbtstat C. netstat D. ping

What feature allows a firewall to permit traffic to flow from a trusted network (for example, a corporate intranet) to an untrusted network (for example, the Internet) and then allow return traffic for that session, while blocking sessions initiated on the untrusted network?

a. Packet filtering b. Stateful inspection c. Demilitarized zone d. Implicit deny all instruction