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CCNA 1 v3.1

CCNA 1 v3.1. Module 3 Review. Which combinations of charges will be repelled by electric force?. positive and positive negative and negative. What characteristics are specified by 10BaseT?. 10 megabits per second data rate baseband transmission twisted pair cable .

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CCNA 1 v3.1

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  1. CCNA 1 v3.1 Module 3 Review

  2. Which combinations of charges will be repelled by electric force? • positive and positive • negative and negative

  3. What characteristics are specified by 10BaseT? • 10 megabits per second data rate • baseband transmission • twisted pair cable

  4. What are two benefits of coaxial cable within a LAN environment? • less expensive than fiber • requires fewer repeaters than UTP

  5. What wireless standards increased transmission capabilities to 11 Mbps? • 802.11b

  6. When working with computer circuitry, what should technicians try to avoid? • electrostatic discharge

  7. What occurs when a voltage source is connected to a completed electrical circuit? • electrons will flow from the negative terminal to the positive terminal

  8. How is the current determined if the voltage and resistance of an electrical circuit are known? • Divide the voltage by the resistance.

  9. What is the unit of measurement for electrical current? • ampere

  10. What is one of the biggest sources of connection problems in coaxial cable installations? • poor shield connections

  11. What materials severely restrict the flow of electrons? • insulators

  12. What does UTP cable rely on to reduce signal degradation caused by EMI and RFI? • cancellation

  13. What 2 cable connectors are used to connect a cable from a router's console port to a PC? • RJ-45 • DB-9

  14. What is the maximum transmission rate of a device compliant with the basic 802.11a standard? • 54 Mbps

  15. What is the term that refers to electrical pressure? • voltage

  16. What is the most important property of the class of materials known as semiconductors? • A semiconductor has the ability to precisely control the flow of electrons.

  17. Which type of cable has the color of the wires in pins #1 and #2 on one end appear on the other end at pins #3 and #6, and vice-versa? • crossover cable

  18. Which adapter is used to connect a cable from the console port of the router to a PC? • RJ-45 to DB-9

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