Computer Networks and Communication Systems
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Questions and Answers

What is the maximum segment length for twisted pair cable?

  • 100 meters (correct)
  • 150 meters
  • 200 meters
  • 50 meters
  • Which type of twisted pair cable has the highest cost?

  • Category 5 UTP
  • Unshielded Twisted Pair (UTP)
  • Shielded Twisted Pair (STP) (correct)
  • Category 3 UTP
  • What is the purpose of using RJ-45 connectors in twisted pair cables?

  • To decrease bandwidth support
  • To reduce interference (correct)
  • To facilitate easy installation
  • To increase attenuation
  • How does increasing the twisting amount in UTP cables affect the interference and bandwidth?

    <p>Decreases interference and increases bandwidth</p> Signup and view all the answers

    Which type of cable is known for its easy installation and low cost?

    <p>Unshielded Twisted Pair (UTP)</p> Signup and view all the answers

    What is the main advantage of packet-switching?

    <p>Line efficiency allows sharing a single link by many packets</p> Signup and view all the answers

    Which medium uses pulses of light for data transmission?

    <p>Fiber-optic cable</p> Signup and view all the answers

    What is the purpose of buffering packets in packet-switching networks?

    <p>To prevent data loss and equalize transmission rates</p> Signup and view all the answers

    Which type of cable medium is commonly used in network data transmission?

    <p>Optical fiber cable</p> Signup and view all the answers

    In packet-switching, why can multiple packets share a single node-to-node link efficiently?

    <p>The packets are stored in a queue and transmitted quickly</p> Signup and view all the answers

    Which type of network topology is characterized by each device having a direct connection to every other device?

    <p>Mesh Topology</p> Signup and view all the answers

    In a circuit-switched network, what happens before data transmission can occur?

    <p>A dedicated communication path is established</p> Signup and view all the answers

    What type of technology involves breaking data into small packets for transmission and reassembling them at the receiving end?

    <p>Packet-Switching</p> Signup and view all the answers

    Which of the following is an example of wired transmission media?

    <p>Fiber Optics</p> Signup and view all the answers

    What hardware component directly accesses the network and can be internal or external (USB)?

    <p>Network Interface Card (NIC)</p> Signup and view all the answers

    Which type of network device allows different nodes to communicate with each other at the same time without slowing each other down?

    <p>Switch</p> Signup and view all the answers

    What is the main function of a hub in a network?

    <p>Serve as a central connection point for LAN devices</p> Signup and view all the answers

    Which network device notifies other devices of errors and communication failures?

    <p>Switch</p> Signup and view all the answers

    What category do network access devices fall under?

    <p>Network Access Devices</p> Signup and view all the answers

    Which intermediary device interconnects different end devices together in a network?

    <p>Switch</p> Signup and view all the answers

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