20) Factor completely (remember you can check your answer if you want to be sure): 

Name the open area that the pointer is pointing to: _______

When TCP/IP was developed, the host table concept was expanded to a hierarchical name system for matching computer names and numbers known as the ____.

Instead of using a key or entering a code to open a door, a user can display a ____ to identify herself.

17) Factor the polynomial completely:

24) Factor completely:

15)  Find the GCF of the following terms:  

9) Multiply, simplify if necessary:  

In ____, a virtualized environment is created that simulates the central processing unit (CPU) and memory of the computer.

A ____ tester has an in-depth knowledge of the network and systems being tested, including network diagrams, IP addresses, and even the source code of custom applications.