Network Core and Data Transfer Methods Quiz
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Questions and Answers

What is the main characteristic of packet switching in terms of network resources?

  • Resource sharing (correct)
  • Bandwidth division into 'pieces'
  • Dedicated allocation
  • Resource reservation
  • In packet switching, what happens when packets wait for link use due to resource contention?

  • Packets queue and wait (correct)
  • Packets are duplicated
  • Packets are dropped
  • Packets are rerouted
  • What is the main difference between statistical multiplexing and Time Division Multiplexing (TDM) in packet switching?

  • Sequential packet order
  • Equal slot allocation
  • Fixed bandwidth allocation
  • Variable bandwidth sharing (correct)
  • What is the transmission delay for a packet of 7.5 Mbits transmitted over a link at 1.5 Mbps speed?

    <p>$15$ seconds</p> Signup and view all the answers

    How does packet switching compare to circuit switching in terms of allowing more users on a network?

    <p>Packet switching allows more users</p> Signup and view all the answers

    What is a key advantage of packet switching for handling bursty data?

    <p>Resource sharing</p> Signup and view all the answers

    Which type of ISPs connect to tier-1 ISPs and possibly other tier-2 ISPs in the Internet structure?

    <p>'Tier-2' ISPs</p> Signup and view all the answers

    What is the primary role of 'Tier-1' ISPs in the Internet structure?

    <p>'Tier-1' ISPs act as backbone providers</p> Signup and view all the answers

    Which feature distinguishes 'Tier-3' ISPs from 'Tier-1' and 'Tier-2' ISPs?

    <p>'Tier-3' ISPs are last hop networks</p> Signup and view all the answers

    What is a critical challenge with packet switching that requires specialized protocols?

    <p>Congestion detection and management</p> Signup and view all the answers

    What is the fundamental question the network core mesh of interconnected routers addresses?

    <p>How is data transferred through the network?</p> Signup and view all the answers

    In circuit switching, what is reserved for each 'call'?

    <p>Link bandwidth and switch capacity</p> Signup and view all the answers

    What is the advantage of circuit-like (guaranteed) performance in circuit switching?

    <p>Resources are dedicated and not shared</p> Signup and view all the answers

    What is the purpose of dividing network resources into 'pieces' in circuit switching?

    <p>To allocate them to different calls</p> Signup and view all the answers

    What is the difference between FDM and TDM in circuit switching?

    <p>FDM divides the frequency domain, while TDM divides the time domain</p> Signup and view all the answers

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