Computer Networks/Ethernet

This lesson introduces Ethernet networking.

Objectives and Skills
Objectives and skills for the Ethernet networking portion of Network+ certification include:
 * Given a scenario, deploy the appropriate wired connectivity standard
 * Ethernet standards
 * 10BaseT
 * 100BaseT
 * 1000BaseT
 * 1000BaseTX
 * 10GBaseT
 * 100BaseFX
 * 10Base2
 * 10GBaseSR
 * 10GBaseER
 * 10GBaseSW
 * IEEE 1905.1-2013
 * Ethernet over HDMI
 * Ethernet over power line
 * Given a scenario, implement and configure the appropriate addressing schema
 * MAC addressing
 * Explain the basics of network theory and concepts
 * Numbering systems
 * Binary
 * Hexadecimal
 * Octal
 * Broadband/base band
 * Bit rates vs baud rate
 * Sampling size
 * CDMA
 * CSMA/CD and CSMA/CA
 * Carrier detect/sense
 * Wavelength
 * Collision

Readings

 * 1)  Ethernet
 * 2)  Carrier sense multiple access with collision detection
 * 3)  MAC address
 * 4)  Binary number
 * 5)  Hexadecimal

Multimedia

 * 1) YouTube: Ethernet Standards - CompTIA Network+ N10-006 - 5.4
 * 2) YouTube: Network Fundamentals - CompTIA Network+ N10-006 - 5.2
 * 3) YouTube: Modulation Techniques - CompTIA Network+ N10-006 - 5.2
 * 4) YouTube: Hexadecimal Math - CompTIA Network+ N10-006 - 5.2
 * 5) YouTube: Octal Math - CompTIA Network+ N10-006 - 5.2
 * 6) YouTube: CSMA/CD and CSMA/CA - CompTIA Network+ N10-006 - 5.2

Activities

 * 1) Review  IEEE 802.3. Create a comparison table listing the following Ethernet standards. For each standard, note the media type, data rate, maximum distance, and year the standard was introduced.
 * 2) * 10BaseT
 * 3) * 100BaseT
 * 4) * 1000BaseT
 * 5) * 1000BaseTX
 * 6) * 10GBaseT
 * 7) * 100BaseFX
 * 8) * 10Base2
 * 9) * 10GBaseSR
 * 10) * 10GBaseER
 * 11) * 10GBaseSW
 * 12) * Ethernet over HDMI
 * 13) * Ethernet over power line
 * 14) Test Ethernet performance.
 * 15) * Download the free TotuSoft: LAN Speed Test (Lite) network speed test program, or use a free Internet speed test site.
 * 16) * Review Duplex (telecommunications) and Home Network Help: Changing the Speed and Duplex Mode of Network Card in Microsoft Windows.
 * 17) * Check the speed and duplex mode of the network adapter(s) in your system. Make a written note of the current settings. Test network speed and note the results.
 * 18) * Experiment with changing the speed and duplex mode of your system to determine the impact of a slower connection using hubs (half duplex) rather than switches (full duplex). Test network speed and compare the results.
 * 19) * Return your settings to the original values. Test network speed again to verify performance.
 * 20) Identify your network adapter's MAC address and manufacturer.
 * 21) * Windows:
 * 22) ** Review Microsoft: Getmac. Use the  command to display MAC addresses on your computer.
 * 23) ** Review Microsoft: Ipconfig. Use the  command to display MAC addresses on your computer.
 * 24) ** Review Organizationally unique identifier. Search the Internet for OUI lookup. Select a site and enter your MAC address to identify the manufacturer of your network adapter(s).
 * 25) * macOS:
 * 26) ** Review macOS Daily: Find a MAC Address in macOS. Use System Preferences to display MAC addresses on your computer.
 * 27) ** Review macOS Daily: Find a MAC Address in macOS. Use the  command to display MAC addresses on your computer.
 * 28) ** Review Organizationally unique identifier. Search the Internet for OUI lookup. Select a site and enter your MAC address to identify the manufacturer of your network adapter(s).
 * 29) * Linux:
 * 30) ** Review Linux.org: View and Change Linux MAC Addresses. Use the  to display MAC addresses on your computer.
 * 31) ** Review Organizationally unique identifier. Search the Internet for OUI lookup. Select a site and enter your MAC address to identify the manufacturer of your network adapter(s).
 * 32) * Android:
 * 33) ** Review Optimum: Finding the MAC Address on an Android Phone or Android Tablet. Use Settings to display MAC address on your device.
 * 34) ** Review Organizationally unique identifier. Search the Internet for OUI lookup. Select a site and enter your MAC address to identify the manufacturer of your network adapter.
 * 35) * iOS:
 * 36) ** Review macOS Daily: Find the iPhone MAC Address. Use Settings to display the MAC address on your device.
 * 37) ** Review Organizationally unique identifier. Search the Internet for OUI lookup. Select a site and enter your MAC address to identify the manufacturer of your network adapter.
 * 38) Use a protocol analyzer to view an Ethernet frame.
 * 39) * Review Ethernet frame.
 * 40) * Follow the instructions in Wireshark/Ethernet to capture and view an Ethernet frame.
 * 41) Advanced: Spoof a MAC address.
 * 42) * Windows:
 * 43) ** Review MAC spoofing and  Changing Your MAC Address.
 * 44) ** Review Online Tech Tips: Change or Spoof a MAC Address in Windows or macOS.
 * 45) ** Continue with All: below.
 * 46) * macOS:
 * 47) ** Review MAC spoofing and  Changing Your MAC Address.
 * 48) ** Review Online Tech Tips: Change or Spoof a MAC Address in Windows or macOS.
 * 49) ** Continue with All: below.
 * 50) * Linux:
 * 51) ** Review MAC spoofing and  Changing Your MAC Address.
 * 52) ** Review Linux.org: View and Change Linux MAC Addresses.
 * 53) ** Continue with All: below.
 * 54) * All:
 * 55) ** Use one of the methods in the previous activity to identify the MAC address on your computer. Make a written note of the address.
 * 56) ** Change the MAC address to a new random address of your choosing. Test connectivity with the new address.
 * 57) ** Change the MAC address again, this time to match the address of another computer on your network. Note: This may disrupt network connectivity for one or both devices. Test connectivity with the new address.
 * 58) ** Change the MAC address back to the original value assigned by the manufacturer. Test connectivity with the restored address.
 * 59) Convert binary, decimal and hexadecimal numbers.
 * 60) * Review MathsIsFun: Binary, Decimal and Hexadecimal Numbers and MathsIsFun: Binary to Decimal to Hexadecimal Converter.
 * 61) * Experiment with converting decimal values to hexadecimal and binary, and then back to decimal again.
 * 62) * Use your operating system's calculator or system commands. Perform simple math calculations in binary and hexadecimal.  Convert the values to decimal to check your work.
 * 63) ** Windows GUI:
 * 64) *** Review Ampercent: How To Use Windows Calculator For Number System Conversions.
 * 65) ** macOS GUI:
 * 66) *** Review macOS Daily: Access the Scientific Calculator & Programmer Calculator in macOS.
 * 67) ** macOS Terminal:
 * 68) *** Review Linuxnix: Convert Binary,HEX, Oct to decimal in Linux/Unix.
 * 69) ** Linux Terminal:
 * 70) *** Review Linuxnix: Convert Binary,HEX, Oct to decimal in Linux/Unix.