1. Chapter 1 Intro to Routing & Switching

3.  Networks have changed how we communicate  Everyone can connect & share  How have networks changed the way…  You learn?  You communicate?  You play?  You work?

4.  Read slides 1.1.1.1 - 1.1.1.8  Complete Lab - Researching Network Collaboration Tools on 1.1.18  You will use the wiki to keep track of questions you get wrong on chapter tests

5.  Form 6 groups  On poster paper, draw a picture & use key words to describe:  Simple small home network  SOHO  Medium-large networks  World-wide network  Client/Server  Peer-to-peer

6.  Host  Can send & receive messages  Server  Host with special software  Provides a service, like email or web pages Email server/web server  Client  Host with special software  Requests & displays info from a server PC with web browser to display pages from web server

8.  A computer can be a client AND a server  SOHO & home use P2P networks  Simple P2P- 2 computers connected  Multiple devices with network device to connect them

9.  Advantages  Disadvantages

11. 1.2.1

13.  Interface between users & the network  Host is either source or destination  Each host has an address to identify it

14.  Connect end devices  Work behind scenes to make data flow  Network Access- switches and WAPs  Internetworking- routers  Security- firewalls

15.  Knows the path  Finds detour when link fails  Can prioritize data with Quality of Service (QoS) priorities  What does this mean?  Filter data  Security

16.  Copper  Electricity  Fiber  Light  Wireless  Radio waves  How do you choose?  Distance  Environment where installed  Amount of data & speed  Cost of the media & installation

17.  Complete the handout

19.  End device  Intermediary  Media

20. END OF DAY 2

21. 1.2.2, 1.2.3, 1.2.4

22. The two most common types of network infrastructures are:  Local Area Network (LAN)  Wide Area Network (WAN). Other types of networks include:  Metropolitan Area Network (MAN)  Wireless LAN (WLAN)  Storage Area Network (SAN)

23.  Over a small area

25.  Connected networks  Not owned by anyone  Organizations maintain it & standards

27.  In groups of 4  How you connect, bandwidth (s, m, f), device needed, special info  Cable/fiber  DSL  Cellular  Satellite  Dial-up

28.  Dedicated leased line  Connection from ISP to you  T1 (1.5Mbps) & T3 (44Mbps)  Metro Ethernet  What is it?  DSL  ADSL & SDSL  18,000ft. over copper  Satellite  Higher cost  Slower

29. END OF DAY 3

30. 1.3.1, 1.3.2

33.  Mapping the Internet

34.  To support all of these methods of communication, these need to be addresses to meet user expectations:  Fault Tolerance  Scalability  Quality of Service (QoS)  Security

35.  Limits failures  Quick recovery when failure occurs  One path fails, message takes different path  Circuit-switched network  Packet-switched network

36.  Grow, able to support more users & new applications w/out major changes

37.  Have you ever tried to watch a video with constant breaks and pauses?  Must provide predictable, measurable, and at times, guaranteed services  Is packet-switched guaranteed?  Can be used on home routers  What has priority? Phone, video game, Internet?

38.  What can happen if bad or no security?  Network infrastructure security  Information security  Ensure data is kept confidential, data integrity, data availability

39.  Complete the handout

40. END OF DAY 4

41. 1.4.1, 1.4.2, 1.4.3

42.  BYOD  Online collaboration  Video communication  Cloud computing  Access application through online subscription  Store files on network servers online Kept in data centers (WE HAVE ONE!)  How does this help an IT department & business

43.  Viruses, worms, and Trojan horses  Spyware and adware  Zero-day attacks, also called zero-hour attacks  Hacker attacks  Denial of service attacks  Data interception and theft  Identity theft  Make a poster for each, in groups

44.  Antivirus  Anti-spyware  Firewall filtering  In a larger network:  Dedicated firewall system  ACLs  IPS (intrusion prevention system)  VPN

46.  Complete the study guide handout  Take the quiz on netacad.com  Jeopardy review

47. In this chapter, you learned:  Networks and the Internet have changed the way we communicate, learn, work, and even play.  Networks come in all sizes. They can range from simple networks consisting of two computers, to networks connecting millions of devices.  The Internet is the largest network in existence. In fact, the term Internet means a ‘network of networks. The Internet provides the services that enable us to connect and communicate with our families, friends, work, and interests.

48.  The network infrastructure is the platform that supports the network. It provides the stable and reliable channel over which communication can occur. It is made up of network components including end devices, intermediate device, and network media.  Networks must be reliable.  Network security is an integral part of computer networking, regardless of whether the network is limited to a home environment with a single connection to the Internet, or as large as a corporation with thousands of users.

49.  The network infrastructure can vary greatly in terms of size, number of users, and number and types of services that are supported on it. The network infrastructure must grow and adjust to support the way the network is used. The routing and switching platform is the foundation of any network infrastructure.

50. Chapter 1 Intro to Routing & Switching