1. Net+ Chapter 1 Introduction to Networks

2. First Things First: What’s a Network? LAN WAN Workgroup How do you connect LANs?

3. Common Network Components Workstations Servers Hosts / clients

4. Server Types File server Mail server Print server Web server Fax server Application server Telephony server Remote-access server Proxy server

5. VLANs Workgroups  VLANs Isolate network traffic (page 9) Physical network vs logical network

6. WANs How are they different from LANs? WANs usually need a router port(s) WANs span a larger geographic area and/or can link disparate locations WANs are usually slower WAN connections are temporary WANs can use either public or private data transport lines Distributed WAN – page 10

7. VPNs “A VPN allows me to connect to resources by locally attaching to the VLAN through a VPN across the WAN.” (page 11) Huh?

9. Network Architecture Peer-to-Peer vs. Client/Server Users and passwords Security Home directories Backing up data Scalability

11. Physical Network Topologies How data travels from host to host Types Bus Star Ring Mesh (uhh…. the INTERNET!) Point-to-point (telephone call) Point-to-multipoint (radio station broadcast) Hybrid Real World Scenario on page 20

13. Wrapping it up Things to keep in mind when picking a topology Cost Ease of installation Ease of maintenance Fault-tolerance requirement Backbone vs segment