1. Networking and Security
Kamiko Jackson

2. Network Types Network Type Description Where used in Business
PAN (Personal Area Network)
Devices used by one person connected via wireless media.
Usually by employees traveling on business.
LAN (Local Area Network)
A networking consisting of nodes covering a small geographic area.
In small businesses of self-contained units of a large business (such as one or more floors of the same office building)
HAN (Home Area Network)
A type of small LAN installed in a home
Not usually deployed by businesses, except small home-based businesses
WAN (Wide Area Network)
Two or more LANs connected together, often over long distances
Connecting business LANs over long distances such as between branches in two cities
MAN (Metropolitan Area Network)
WANs constructed by municipalities to provide connectivity in a specific geographic area
Although not developed by businesses, employees often use them while traveling

3. VPNs
Virtual Private Network
Uses the public internet communications infrastructure to build a secure, private network among various locations.
Main technology for achieving a VPN is called tunneling
Tunneling- data pockets are placed inside other data pockets
Format of the external data pockets is encrypted and can be understood only by sending and receiving hardware, known as tunnel interface

4. Print Servers Manage all printing jobs for client computers
How does a print server function?
How does the printer know which documents to print?
Print servers manage all client- required printing jobs all printers on a network.
A print queue (print spooler) is a software holding area for print jobs.

5. Application Servers
An application server acts as a repository for application software.

6. Database Servers
Provide client computers with database

7. Authentication Servers
Keep track of users logged onto the network

8. Filer Servers
Store and manage files for network users

9. E- Mail Servers
Process and deliver incoming and outgoing

10. Communication Servers
Handle all communications between the network and other networks

11. Web/ Cloud Servers
Host websites to make them available through the Internet

12. Describe five network types and where they are used in business. (p
Describe five network types and where they are used in business. (p.494 See Chart) PAN (Personal Area Network) LAN (Local Area Network) HAN (Home Area Network) WAN (Wide Area Network) MAN (Metropolitan Area Network)

13. How do VPNs work. (p. 495,496) Virtual Private Network
How do VPNs work? (p.495,496) Virtual Private Network. A network that uses the public internet communications infrastructure to build a secure, private network among various locations.

14. List eight major categories of servers and their main function. (p
List eight major categories of servers and their main function. (p.497 See Chart) Print: manage all printing jobs for client computers Application: serve as a repository for application software Database: provide client computers with database access Authentication: keep track of users logged onto the network File: store and manage files for network users process and deliver incoming and out-going Communications: handle all communications between the network and other networks Web/Cloud: host websites to make them available through the internet