Exercise 15: Protecting and Archiving Data

1. A firewall is a part of a computer system or network that is designed to block unauthorized access while permitting outward communication. (Wikipedia, 2009). It is worth to invest the firewall since it guarantee that orgainisation's internal network is free from unauthorized break in.

a. Cisco provides hardware firewall supply, <http://www.cisco.com/>

b. Checkpoint provides software and hardware firewall supply, <http://www.checkpoint.com/>

2. My bank has a backup policy and it is enforced by the Hong Kong Monetary Authority. All the critical data would be backup and placed at the off site.

3. When search on google.com with the " virus writing kit" , there are 6,470,000 web sites are match, therefore, we can tell how easy to look for a tool and create a new virus

References:

Wikipedia, 2009, ' Firewall'

<http://en.wikipedia.org/wiki/Firewall>