1. CIS 375
Network Basics

2. Types of Networks Based on Host Roles
Peer-to-Peer – provide & consume services
Easy to set-up and share resources
Difficult to manage/Scale
Client/Server – clients consume services from servers
*Server – Software/Hardware that provides services
Easy to manage/scale
More expensive and planning/configuration

3. Types of Networks Based on Geography LAN – Local Area Network
Small Geographic Area: local office, home, site
Internetwork – connected LANs (locally)
WAN – Wide Area Network
Large Geographic Area - connected LANs at Multiple sites

4. Types of Networks Based on Signaling Baseband Broadband
1 signal (packet) at a time with full transmission speed
Broadband
Transmission medium (cable) divided into “channels” with multiple signals at the same time (one per channel)

5. Types of Media Bounded (Wires) Unbounded (Wireless) Bounded Media
Coaxial (Cable wire) (RG-6, 10Mbps, BNC)
Twisted Pair (Phone wire)
Cat-5 – (100Mbps, RJ-45) Shielded/Unshielded (STP/UTP)
Cat-5e - (1Gbps, RJ-45)
Cat-6 - (10Gbps, RJ-45)
Plenum Cable: cable that is laid in theplenum spaces of buildings. (between floors/roof – safety/fire codes)
Fiber Optic Cable (no cross-talk, fast, secure, expensive)
Single/Multi-mode fiber (ST/SC/LC/MT-RJ Connector)

6. Types of Media Bounded (Wires) Unbounded (Wireless) Wireless
Wi-Fi (Wireless Fidelity) /5Ghz Spectrum (2.4 – Hospital/Medical Band) Radio Signal
100ft indoor, 300ft outdoor range
Wireless Routers, Repeaters, Adapters – Signal issues
Mimo - (multiple input, multiple output) is an antenna technology for wireless communications in which multiple antennas are used at both the source (transmitter) and the destination (receiver). The antennas at each end of the communications circuit are combined to minimize errors and optimize data speed.
More info:

7. Additional Resources/Review