Read the Chapter Summary on pp. 39-40. Nothing to turn in for; PART TWO ? Ch. 2 ? OSI & TCP/IP Network Models; PART THREE ? Ch. 3 ? Cabling and Topology

Question CS 179 – ASSIGNMENT #2 – WINTER 2013 NAME __________________________ Ch. 2 & 3 Edit your answers in Bold into this document then upload it via Moodle. For the Web research questions since Web sites often change if the steps outlined in the assignment don?t lead you to the requested info try to find where that info is in the current version of the Web site. PART ONE ? Basic definitions Open a Web browser and visit http://www.techweb.com/encyclopedia/. Search for the definitions of ?lan? and ?wan? Screen print the first paragraph of each definition and insert the images in this assignment immediately below. Note: Screen printing may be accomplished by holding down the Alt key while striking the PrintScreen key (to save the active window to the clipboard) and then pasting the image into MS Word using the Paste option. 1.What is the difference between a LAN and a WAN? ___________________________________ _____________________________________________________________________________ PART TWO ? Ch. 2 ? OSI & TCP/IP Network Models Refer to Ch. 2 in the text. You may also want to refer to the Power Point slide show for Chapter 2 (available in Moodle) for these questions. 1. Read the Chapter Summary on pp. 39-40. Nothing to turn in for this one. 2. As a review do the self-assessment quiz from the publisher?s website: http://highered.mcgraw-hill.com/sites/0071789111/student_view0/chapter2/self-assessment_quiz.html 3. If the above link does not work go to: http://highered.mcgraw-hill.com/sites/0071789111/student_view0/index.html 4. then choose Chapter 2 in the upper left then select Self-Assessment Quiz. Nothing to turn in. The correct answers are provided after you submit your answers 5. Do the even questions in the Key Term Quiz pg. 41. Notice that the key terms are listed immediately above on pg. 40. Enter your answers here: 2. ___________________________ 4. ______________________________ 6. ___________________________ 8. ___________________________ 10. __________________________ 6. Match the model layer to the function below. Use layer names not numbers. OSI Model TCP/IP Model Data assembly/disassembly ____________ ______________ IP addressing ____________ ______________ Physical connection ____________ ______________ MAC addressing ____________ ______________ Port numbers ____________ ______________ Session Management ____________ ______________ Formatting ____________ ______________ 7. a)Which layer of the OSI model has two sublayers? _________ b)What are the names of these sublayers? ___________________________________________ 8. Match the OSI layer functions with the correct layer name (each is used once). 1. Physical 2. Data Link 3. Network 4. Transport 5. Session 6. Presentation 7. Application ____ Manages the connections between the machines on the network. ____ Provides services to the programs the users see. ____ Rules for accessing and using the Physical layer. ____ Connection to the cabling or radio waves. ____ Presents data from the sending system in a form the receiving system can understand. ____ Handles the IP address used by routers for delivery of packets. ____ Breaks up data received from the upper layers into smaller pieces for transport 9. Visit the TechWeb site: http://www.techweb.com/encyclopedia and search for the definition of ?encapsulation.? Read the second definition that is displayed the networking definition. Screen print the diagram shown and insert it immediately below. How many layers are shown in the diagram? _______. (Recall that the OSI seven-layer model is a reference model and that the actual protocol suites in use in modern networks don?t conform exactly.) From the TechWeb site also look up the definitions of ?layer 2? and ?layer 3? and ?CRC.? Read the definitions then screen print all three of them and insert them immediately below. 10. We learned that the NIC contains the MAC address which is the address used in the frame at OSI layer 2. The first half of the MAC address (called the organizationally unique identifier (OUI)) indicates the manufacturer of the NIC. Let?s explore this. Enter ipconfig /all from the Windows command prompt. Screen print this display and insert it immediately below. a)What is the Physical Address (this is the MAC address) shown for the interface you are using: __________________________________________ b)Visit this site http://standards.ieee.org/regauth/oui/index.shtml and select ?OUI Public Listing? in the left panel. Enter the first three pairs of digits of your MAC address into the search field then click Search! What manufacturer is displayed? _____________________________________________________________________ Does the manufacturer name returned from the website match the company name in the Description line output by the ipconfig/all command? _______ (Note: They don?t always agree because some manufacturers subcontract with other firms.) PART THREE ? Ch. 3 ? Cabling and Topology Refer to Ch. 3 in the text. You may also want to refer to the Power Point slide show for Chapter 3 (available in Moodle) for these questions. 1. Read the Chapter Summary on pp. 60-61. Nothing to turn in for this one. 2. As a review do the self-assessment quiz from the publisher?s website: http://highered.mcgraw-hill.com/sites/0071789111/student_view0/chapter3/self-assessment_quiz.html If the above link does not work go to: http://highered.mcgraw-hill.com/sites/0071789111/student_view0/index.html then choose Chapter 3 in the upper left then select Self-Assessment Quiz. Nothing to turn in. The correct answers are provided after you submit your answers 3. Do the even questions in the Key Term Quiz pp. 61-62. Notice that the key terms are listed immediately above on pg. 61. Enter your answers here: 2. ___________________________ 4. ______________________________ 6. ___________________________ 8. ___________________________ 10. __________________________ 10. Do question #2 in Essay Quiz on pg. 64. Enter your essay below: 11. Match the topology with the appropriate definition. Bus 2. Ring 3. Star 4. Mesh ____ Computers connect to others via two or more routes. ____ All computers connected in a line ____ Computers connect to central device. ____ All computers connected in circular fashion. 12. Enter the information into the table below to compare and contrast the three cable types. Cable Type Description Benefits Drawbacks Cat 5e Cat 6 Fiber optic 13. Indicate the type of connector(s) used with these cable types. Cable Type Connector(s) Cat 5e Cat 6 Fiber optic 14. The IEEE 802.3 standard refers to _______________________________ 15. The IEEE 802.11 standard refers to _______________________________ 16. What is an advantages of a star topology compared to bus and ring? ________________________ ______________________________________________________________________________ 17. At what layer of the OSI model does UTP cabling fit? _____ 18. At what layer of the OSI model is the network topology? ____ 19. Define TIA/EIA and briefly describe how it is relevant to the current topic. 20. Define IEEE and briefly describe how it is relevant to the current topic. 21. Visit this site http://en.wikipedia.org/wiki/Category_5e_cable and read through the article. Then visit this site http://en.wikipedia.org/wiki/Fiber_optic_cable and read it. Now briefly indicate below something new or interesting that you learned from each site: Category 5e: Fiber optic: Upload this document with your answers in Bold via Moodle.

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