Computer Network and Bandwidth Quiz
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Questions and Answers

What is the transmission capacity of a network referred to as?

  • Bandwidth (correct)
  • DSL
  • HSPDA
  • Broadband
  • Which organization provided the original definition of broadband as an always-on, high-speed connection to the Internet?

  • CRTC (correct)
  • ISP
  • PAN
  • HSPDA
  • According to the CRTC, broadband connections can include which of the following technologies?

  • Personal area networks (PANs)
  • Cable
  • Digital subscriber line (DSL)
  • Wireless HSPDA (correct)
  • What is the primary characteristic of Personal Area Networks (PANs)?

    <p>Short-range networks</p> Signup and view all the answers

    What is the main idea behind local area networks (LANs)?

    <p>To provide fast and inexpensive communication within a limited region</p> Signup and view all the answers

    What type of wire is typically used in most LANs?

    <p>Unshielded twisted-pair wire (UTP)</p> Signup and view all the answers

    What is the primary function of a network interface card (NIC) in a LAN?

    <p>Physically connect devices to the LAN</p> Signup and view all the answers

    Why do businesses use wide area networks (WANs) according to the text?

    <p>To transmit data beyond the confines of LANs</p> Signup and view all the answers

    What is the primary purpose of routers in wide area networks (WANs)?

    <p>Communications processor that routes messages between LANs or across a WAN</p> Signup and view all the answers

    How are LANs and WANs connected in enterprise networks?

    <p>Interconnected to form an enterprise backbone network</p> Signup and view all the answers

    What is the primary role of software-defined networks (SDN) in managing data flows?

    <p>Centrally managing how network traffic flows across network devices</p> Signup and view all the answers

    How do cable modems differ from DSL modems in terms of bandwidth sharing?

    <p>Cable modems share bandwidth among subscribers in a locality while DSL modems do not</p> Signup and view all the answers

    What is the distinguishing feature of digital signals that allows computers to interpret information?

    <p>Representing binary information with discrete pulses</p> Signup and view all the answers

    Why do organizations find software-defined networks (SDN) increasingly important?

    <p>To manage data flows across their enterprise networks more effectively</p> Signup and view all the answers

    What is a disadvantage of twisted-pair wire as discussed in the text?

    <p>Subject to interference from other electrical sources</p> Signup and view all the answers

    Which cable media is smaller and lighter than traditional cable media?

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

    What is the primary advantage of coaxial cables over twisted-pair wires?

    <p>Less affected by electrical interference</p> Signup and view all the answers

    Which media channel uses physical wires or cables to transmit data according to the text?

    <p>Wireline media</p> Signup and view all the answers

    What is a characteristic of fibre-optic cables that makes them suitable as a network backbone?

    <p>Transmits more data and provides greater security from interference</p> Signup and view all the answers

    Why are Ethernet protocols significant for network communications?

    <p>Enable network communication at speeds up to 100 gigabits per second</p> Signup and view all the answers

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