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35 Cards in this Set
- Front
- Back
10. The Internet is an example of what kind of WAN topology?
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c. mesh
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15. Which two of the following might cause excessive data collisions on an Ethernet network?
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b. The overall network length exceeds IEEE 802.3 standards for that network type.
e. A server on the network contains a faulty NIC. |
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9. What type of network backbone is the most reliable?
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c. parallel
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8. Which of the following is a potential problem with daisy-chaining hubs?
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a. exceeding the maximum network length
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7. How do workstations in a ring topology negotiate their data transmissions?
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d. by using tokens
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6. What logical topology, or network transport model, relies most often on a star-wired
bus topology? |
a. Ethernet
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5. Why might you want to use a hierarchical topology?
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a. to differentiate levels of connectivity devices and workstation groups
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4. Most modern networks with more than a few nodes use a hybrid topology. True
or False? |
True
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3. What are the primary advantages of using a star topology over a ring or bus
topology? |
More reliable, more scaleable.
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2. What kind of topology is susceptible to signal bounce?
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b. bus
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1. Under what circumstance might you use a simple bus topology?
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c. when your LAN services few users
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14. What is the maximum number of addressable stations on a 10BaseT Ethernet network?
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e. 1024
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13. On a 100BaseT (Fast Ethernet) network, what is the maximum number of hubs that can be connected along the bus of a star-wired bus topology?
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a. 2
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12. Describe the steps a workstation takes under the rules of CSMA/CD.
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Each node waits its turn before transmitting data, to avoid interfering with other nodes' transmissions.
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11. Why is packet switching more efficient than circuit switching?
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b. In packet switching, packets can take the quickest route between nodes and arrive independently of when other packets in their data stream arrive.
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35. Which two of the following might explain why network administrators prefer Gigabit Ethernet over ATM?
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a. Gigabit Ethernet is a more natural upgrade for their existing Ethernet networks.
b. Gigabit Ethernet is typically less expensive to implement than ATM. |
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34. What type of switching do ATM networks use?
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a. circuit switching
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33. You have been asked to serve on a technical committee planning an upgrade from your universitys FDDI network to a Gigabit Ethernet network.The rest of the committee asserts this will be a relatively simple transition.What concern should you raise that contradicts their assertion?
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b. The maximum allowable distance for a FDDI network is longer than that of an
Ethernet network, so the existing FDDI network will need to be divided into smaller subnetworks. |
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32. Besides their ring-based topologies, what else do FDDI and Token Ring networks have in common?
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c. Both use token passing to mediate data transmission.
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31. What type of Physical layer is required for FDDI?
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e. a single ring of multimode fiber
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30. Which of the following logical topologies is capable of the fastest throughput?
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e. ATM
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29. Which of the following IEEE standards describes Token Ring networks?
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d. IEEE 802.5
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28. If you were working on a Token Ring network that used cables with DB-9 con-nectors and needed to connect a NIC that contained an RJ-45 receptor, which of the following would help you accomplish your goal?
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d. media filter
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27. Modern Token Ring networks may transmit data at either 4, 16, 32, or 64 Mbps. True or False?
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False
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26. Which two of the following are disadvantages to using Token Ring networks rather than Ethernet networks?
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b. They are slower than Ethernet.
c. They require more expensive connectivity equipment than Ethernet |
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25. What is the name of a hub used on a Token Ring network?
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a. Multistation Access Unit
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24. What type of TCP/IP protocol does LocalTalk use?
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b. MacTCP
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23. What are the minimum and maximum sizes for an Ethernet frame?
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c. 64 and 1518 bytes
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22. NIC device drivers come with what feature that reduces the need for you to
worry about frame types? |
c. autosense
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21. What is the purpose of a Frame Check Sequence field in an Ethernet frame?
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a. ensuring that data are received without errors at the destination node
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20. What is the purpose of padding in an Ethernet frame?
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e. ensuring that the data portion of the frame totals at least 46 bytes
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19. At what layer of the OSI Model does framing occur?
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b. Data Link layer
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18. What fields do all Ethernet frame types have in common?
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CSMA/CD--Carrier Sense Multiple Access with Collision Detection.
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17. In order to use demand priority on a network (for example, when running
100BaseVG), what type of hub is necessary? |
d. intelligent
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16. What type of media is best suited to 1 Gigabit Ethernet networks?
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a. fiber-optic
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