Network Criteria and Performance Quiz
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Questions and Answers

What is the primary purpose of standards like the OSI model and the Internet model in computer networks?

  • To facilitate communication between heterogeneous networks (correct)
  • To establish a five-layer network structure
  • To ensure all networks are owned by the same entity
  • To define the size of local area networks

    • Which model, based on the text, defines a seven-layer network structure?

  • LAN model
  • WAN model
  • OSI model (correct)
  • Internet model

    • What determines whether a network is categorized as a LAN or a WAN?

  • The size of the area covered by the network (correct)
  • The type of technology used in the network
  • The speed of data transmission in the network
  • The number of devices connected to the network

    • Which of the following best describes a LAN?

    <p>Privately owned and links devices within a single office or building</p> Signup and view all the answers

    What is the typical size limit for a LAN according to the text?

    <p>Less than 2 miles</p> Signup and view all the answers

    In terms of size, what category do metropolitan area networks generally fall into?

    <p>Between tens to hundreds of miles</p> Signup and view all the answers

    What is the main difference between transit time and response time?

    <p>Transit time is the time for a message to travel, while response time is the time for an inquiry to be answered.</p> Signup and view all the answers

    What are the two main criteria used to evaluate the performance of a network?

    <p>Throughput and delay</p> Signup and view all the answers

    How does sending more data affect network performance in terms of throughput and delay?

    <p>Increases throughput but also increases delay due to traffic congestion.</p> Signup and view all the answers

    What factors can affect the performance of a network according to the text?

    <p>Number of users, type of transmission medium, hardware capabilities, and software efficiency</p> Signup and view all the answers

    How is network reliability measured according to the text?

    <p>By frequency of failure, time for link recovery, and network's robustness</p> Signup and view all the answers

    Why are throughput and delay often considered contradictory criteria in network evaluation?

    <p>Increasing one usually leads to a decrease in the other due to traffic congestion.</p> Signup and view all the answers

    What is a practical example of a mesh topology mentioned in the text?

    <p>Telephone regional offices connecting to one another</p> Signup and view all the answers

    How does a star topology differ from a mesh topology?

    <p>A star topology has a central controller for data exchange.</p> Signup and view all the answers

    Why is a star topology less expensive than a mesh topology, as per the text?

    <p>Star topologies can connect to any number of devices with fewer links.</p> Signup and view all the answers

    What happens if one link fails in a star topology, according to the text?

    <p>Only that link is affected.</p> Signup and view all the answers

    What is the maximum number of characters or symbols that can be represented by Unicode?

    <p>65536 characters</p> Signup and view all the answers

    In a mesh topology with six devices, how many cables are needed in total?

    <p>12 cables</p> Signup and view all the answers

    What happens if one station in a ring topology is unplugged?

    <p>The network continues to function normally</p> Signup and view all the answers

    Which application is more sensitive to delay when using the Internet?

    <p>Sending an e-mail</p> Signup and view all the answers

    Why are standards needed in communication systems?

    <p>To ensure interoperability and compatibility</p> Signup and view all the answers

    If you have two computers connected by an Ethernet hub at home, is this setup considered a LAN, MAN, or WAN?

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

    What distinguishes an internet from a network?

    <p>An internet consists of interconnected networks while a network is a group of connected devices.</p> Signup and view all the answers

    When did the Internet as we know it today come into being?

    <p>1969</p> Signup and view all the answers

    What are examples of activities that can be done via the Internet, based on the text?

    <p>Sending e-mail, paying utility bills, and booking hotel reservations</p> Signup and view all the answers

    How many interconnected networks make up the Internet?

    <p>Hundreds of thousands</p> Signup and view all the answers

    What type of devices compose a network in computing terms?

    <p>Computers and printers</p> Signup and view all the answers

    Which sector or organization extensively uses the Internet based on the text?

    <p>Government agencies, schools, research facilities</p> Signup and view all the answers

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