1. Chapter 1 Introduction to Networking

2. Course 1 Overview Comparing logical and physical networks
Networking home computers
Networking small offices and home offices
Networking large offices
Networking enterprises
Understanding standards organizations 2

3. Comparing Logical and Physical Networks
Group of connected computers and devices
Logical
Identifies the design (LANs, WANs)
Physical
Identifies the components (cables, network devices) 3

4. Networking Home Computers
Home computer with access to Internet 4

5. Networking Home Computers
Typical home network using wireless 5

6. Wireless Wired Access Point (WAP) Routing capabilities
Network Address Translation (NAT)
Dynamic Host Configuration Protocol (DHCP)
Firewall 6

7. Networking Small Offices and Homes Offices (SOHOs)
Access to the Internet
Wireless and wired clients
Typically includes a server 7

8. Networking Small Offices and Home Offices
SOHO network 8

9. Understanding Local Area Networks (LANs)
Group of connected devices
Varying speeds
100 Mbps, 1000 Mbps, 1 Gbps
B for bytes and b for bits 9

10. Comparing Workgroups and Domains
Decentralized authentication 10

11. Comparing Workgroups and Domains
Centralized authentication
Domain controller holds Active Directory 11

12. Comparing Workgroups and Domains
Workgroups up to 20 users
Domains provide
Single sign-on (SSO)
Simplified management
Group Policy
Built-in redundancy and fault tolerance 12

13. Networking Larger Offices
Multiple subnets
Computers connected with switches
Subnets connected with routers 13

14. Networking Large Offices
LAN for a large office 14

15. Networking Enterprises
Enterprise has no formal definition
Typically has thousands of users
May have dozens of administrators 15

16. Understanding WANs
WAN connecting two LANs 16

17. Understanding Branch Offices
Branch offices connected in an organization 17

18. Accessing Networks Remotely
Dial-up
Uses phone lines and modems
Virtual Private Network (VPN)
Provides access to a private network over a public network (such as the Internet) 18

19. Accessing Networks Remotely
Remote access via dial-up 19

20. Accessing Networks Remotely
Remote access via VPN 20

21. Understanding Standards Organizations
Internet Engineering Task Force
World Wide Web Consortium
Institute of Electrical and Electronics Engineers
International Telecommunication Union 21

22. Chapter 1 Summary Comparing logical and physical networks
Networking home computers
Networking small offices and home offices
Networking large offices
Networking enterprises
Understanding standards organizations 22