70-272 Chapter08

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70-272 Chapter08

  1. 1. COMMON CONNECTIVITY PROBLEMS Chapter 8
  2. 2. CHAPTER OVERVIEW AND OBJECTIVES <ul><li>Troubleshooting physical connections </li></ul><ul><li>Troubleshooting connections to various network types </li></ul><ul><li>Troubleshooting name resolution </li></ul><ul><li>Troubleshooting Internet Connection Sharing </li></ul><ul><li>Identifying various types of mobile devices </li></ul><ul><li>Managing and troubleshooting mobile device connectivity </li></ul>
  3. 3. TROUBLESHOOTING PHYSICAL CONNECTIONS
  4. 4. IS IT PLUGGED IN?
  5. 5. DEFECTIVE HARDWARE
  6. 6. CHECKING LOCAL HARDWARE
  7. 7. ENABLING A DISABLED DEVICE
  8. 8. CHECKING THE DEVICE DRIVER
  9. 9. DEVICE TROUBLESHOOTERS
  10. 10. TROUBLESHOOTING NETWORK CONNECTIONS <ul><li>Internet connections </li></ul><ul><li>Workgroup connections </li></ul><ul><li>Domain connections </li></ul>
  11. 11. TROUBLESHOOTING INTERNET CONNECTIONS <ul><li>Dial-up settings </li></ul><ul><li>IP address settings </li></ul><ul><li>DNS settings </li></ul><ul><li>Service (mail, Web, messaging) settings </li></ul>
  12. 12. WORKGROUP CONNECTIONS
  13. 13. CONFIGURING A WORKGROUP CONNECTION
  14. 14. TROUBLESHOOTING WORKGROUP CONNECTIVITY <ul><li>Verify connectivity </li></ul><ul><li>Verify valid IP addressing </li></ul><ul><li>Check user name and password with resource administrator </li></ul>
  15. 15. NETWORK TROUBLESHOOTERS
  16. 16. DOMAIN CONNECTIONS
  17. 17. CONFIGURING A DOMAIN CONNECTION
  18. 18. TROUBLESHOOTING DOMAIN CONNECTIVITY <ul><li>Verify connectivity </li></ul><ul><li>Verify valid IP addressing </li></ul><ul><li>Check user name and password with domain administrator </li></ul>
  19. 19. TCP/IP ADDRESSING A 1.0.0.1 126.255.255.254 255.0.0.0 B 128.0.0.1 191.255.255.254 255.255.0.0 C 192.0.0.1 223.255.255.254 255.255.255.0 Address Class Beginning Address Ending Address Subnet Mask
  20. 20. REPAIRING A NETWORK CONNECTION
  21. 21. DISCUSSION: DHCP VS. APIPA
  22. 22. TROUBLESHOOTING NAME RESOLUTION <ul><li>Ping </li></ul><ul><li>Tracert </li></ul><ul><li>Pathping </li></ul><ul><li>Ipconfig </li></ul>
  23. 23. DOMAIN NAME SYSTEM (DNS) <ul><li>Maintains name-to-IP-address mapping </li></ul><ul><li>Uses hierarchical naming structure </li></ul><ul><li>The system used for Internet name resolution </li></ul>
  24. 24. WINDOWS INTERNET NAMING SERVICE (WINS) <ul><li>Maintains NetBIOS name-to-IP-address mapping </li></ul><ul><li>Uses flat naming structure </li></ul><ul><li>Used for NetBIOS name resolution </li></ul>
  25. 25. INTERNET CONNECTION SHARING (ICS)
  26. 26. ENABLING INTERNET CONNECTION SHARING <ul><li>Internet connection properties </li></ul><ul><li>Network Setup Wizard </li></ul>
  27. 27. COMMON HANDHELD AND MOBILE DEVICES <ul><li>Pocket organizers </li></ul><ul><li>Personal digital assistants (PDAs) </li></ul><ul><li>Smart displays </li></ul><ul><li>Tablet PCs </li></ul>
  28. 28. POCKET ORGANIZERS <ul><li>Simple address book and calendar functions </li></ul><ul><li>Might include calculators, translators, and dictionaries </li></ul><ul><li>Typically no e-mail functionality </li></ul>
  29. 29. PERSONAL DIGITAL ASSISTANTS (PDAS) <ul><li>More sophisticated functionality </li></ul><ul><li>Might include word processing, spreadsheet, and database functions </li></ul><ul><li>Most support third-party business applications </li></ul><ul><li>Commonly include e-mail functionality </li></ul>
  30. 30. SMART DISPLAYS <ul><li>Extend the desktop display to remote areas of a home or office </li></ul><ul><li>Do not include any operating system </li></ul><ul><li>Might include touch-screen functionality </li></ul>
  31. 31. TABLET PCS <ul><li>Run Microsoft Windows XP Tablet Edition </li></ul><ul><li>Support pen-based operation </li></ul><ul><li>Some are usable as a notebook computer </li></ul>
  32. 32. HANDHELD DEVICE CONNECTIVITY <ul><li>Serial </li></ul><ul><li>Parallel </li></ul><ul><li>IrDA </li></ul><ul><li>USB </li></ul><ul><li>FireWire </li></ul><ul><li>Wireless Ethernet (802.11) </li></ul>
  33. 33. SERIAL CONNECTIONS <ul><li>Usually the slowest </li></ul><ul><li>Must configure common parameters </li></ul><ul><li>Most widely supported </li></ul>
  34. 34. PARALLEL PORT <ul><li>Not commonly used except for direct cable connections between computers </li></ul><ul><li>Faster than serial ports </li></ul>
  35. 35. UNIVERSAL SERIAL BUS (USB) <ul><li>Faster than serial and parallel communications </li></ul><ul><li>Plug and Play </li></ul><ul><li>Supports the greatest number of peripherals </li></ul>
  36. 36. FIREWIRE <ul><li>Fastest connectivity option </li></ul><ul><li>Limited number of peripherals available </li></ul><ul><li>Used most often for transporting graphics and video </li></ul>
  37. 37. IrDA <ul><li>Uses infrared light </li></ul><ul><li>Requires line of sight </li></ul><ul><li>Limited range </li></ul><ul><li>Susceptible to interference </li></ul>
  38. 38. WIRELESS ETHERNET <ul><li>Widely accepted </li></ul><ul><li>Faster than any other wireless method </li></ul><ul><li>Greater range than other wireless methods </li></ul>
  39. 39. CONNECTIVITY APPLICATIONS
  40. 40. TROUBLESHOOTING CONNECTIVITY <ul><li>Check connections </li></ul><ul><li>Check port configuration and device drivers </li></ul><ul><li>Check connectivity application settings </li></ul><ul><li>Verify BIOS has port enabled and configured </li></ul>
  41. 41. SUMMARY <ul><li>Begin with physical connections </li></ul><ul><ul><li>Cables </li></ul></ul><ul><ul><li>Network devices </li></ul></ul><ul><li>Verify proper configuration </li></ul><ul><ul><li>Device Manager </li></ul></ul><ul><ul><li>Network connections </li></ul></ul><ul><ul><li>Address settings </li></ul></ul>
  42. 42. SUMMARY (CONT.) <ul><li>Test connectivity </li></ul><ul><ul><li>Use Ping, Tracert, Pathping </li></ul></ul><ul><li>Test name resolution </li></ul><ul><ul><li>Ping first by address then by FQDN and NetBIOS names </li></ul></ul><ul><li>Configure Internet Connection Sharing </li></ul><ul><ul><li>Network connection properties </li></ul></ul><ul><ul><li>Network Setup Wizard </li></ul></ul>
  43. 43. SUMMARY (CONT.) <ul><li>Handheld devices connect to desktops in many ways </li></ul><ul><li>Troubleshooting involves checking connectivity and configuration </li></ul>

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