Computer Science Homework Help

I’m working on a computer science multi-part question and need an explanation and answer to help me learn.

1. Discussion:

What are the various technologies employed by wireless devices to maximize their use of the available radio frequencies? Also discuss methods used to secure 802.11 wireless networking in your initial thread.

2. Research Paper:

Considering the importance of data in organization, it is absolutely essential to secure the data present in the database. What are the strategic and technical security measures for good database security? Be sure to discuss at least one security model to properly develop databases for organizational security. Create a diagram of a security model for your research paper.