Prepare a presentation on any of the five (Network Discovery, Network Scanning, DLP, Firewalls, and HIDS) categories

Question:

Prepare a presentation on any of the five (Network Discovery, Network Scanning, DLP, Firewalls, and HIDS) categories of tools and identify two specific products from different vendors. Based on two products, please research the differences and similarities between the two products. You should also evaluate the implementation issues you may face with each product.