NSA 131: Introduction to Networks
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Questions and Answers

What is the primary function of a data communication system?

  • To connect computerized devices
  • To provide services of communications (correct)
  • To provide access to modern technologies
  • To share expensive devices and network resources

    • What is one of the benefits of computer networks?

  • Sharing of inexpensive devices
  • Limited access to information
  • Easy access and sharing of information (correct)
  • Reducing the cost of network resources

    • What can be shared in a computer network?

  • Internal network interface cards
  • Expensive devices and network resources (correct)
  • Software with multi-user licenses
  • Software with single-user licenses

    • What is an example of modern technology used in computer networks?

    <p>IP telephony</p> Signup and view all the answers

    What is the function of a NIC?

    <p>To directly access the network</p> Signup and view all the answers

    What type of devices can be classified as end devices?

    <p>Where a message originates from or where it is received</p> Signup and view all the answers

    What can be used to connect computers and network devices?

    <p>Shared channels (transmission media)</p> Signup and view all the answers

    What is an example of a wired transmission media?

    <p>Metallic wires</p> Signup and view all the answers

    What is a characteristic of a switch in a network?

    <p>It provides address-intelligence forwarding based on H/W address.</p> Signup and view all the answers

    What is a common use of a LAN?

    <p>To allow users to share files and services.</p> Signup and view all the answers

    What is the primary function of a router?

    <p>To make routing decisions based on IP addresses.</p> Signup and view all the answers

    What is an example of a WAN?

    <p>A group of computers connected in a large geographical area such as a country.</p> Signup and view all the answers

    What is the primary difference between a LAN and a MAN?

    <p>The geographical area covered.</p> Signup and view all the answers

    What type of network connects two LANs?

    <p>A WAN.</p> Signup and view all the answers

    What is a classification of networks based on the geographical area covered?

    <p>Covered area.</p> Signup and view all the answers

    What is the main focus of the NSA 131 course?

    <p>Understanding the basic concepts of data networks</p> Signup and view all the answers

    What is a characteristic of a router?

    <p>It inspects the destination IP address.</p> Signup and view all the answers

    What percentage of the total assessment score is allocated to the final exam?

    <p>40</p> Signup and view all the answers

    What is the policy for attending lectures?

    <p>You are not allowed to attend the lecture after 5 minutes of its start</p> Signup and view all the answers

    What is the main objective of the lecture?

    <p>To gain knowledge</p> Signup and view all the answers

    What is the topic of the first chapter of the course?

    <p>Introduction to Computer Networks</p> Signup and view all the answers

    What is the purpose of the assignment and participation tasks?

    <p>To assess the student's understanding of the course material</p> Signup and view all the answers

    When is the first exam scheduled to take place?

    <p>Week 05</p> Signup and view all the answers

    How many types of assessment tasks are mentioned in the course?

    <p>5</p> Signup and view all the answers

    What is dependent on the type and number of equipment being used and cost?

    <p>Network topology</p> Signup and view all the answers

    What type of diagrams illustrate the physical location of intermediary devices and cable installation?

    <p>Physical topology diagrams</p> Signup and view all the answers

    What type of topologies are easy to install, very scalable, and easy to troubleshoot?

    <p>Star and Extended Star topologies</p> Signup and view all the answers

    What is the main advantage of packet-switching in terms of line efficiency?

    <p>Single node to node link can be shared by many packets over time</p> Signup and view all the answers

    What is the purpose of buffering data in packet-switching?

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

    What type of topology has all end systems chained together and terminated on each end?

    <p>Bus topology</p> Signup and view all the answers

    What type of topology has each end system connected to its respective neighbors to form a ring?

    <p>Ring topology</p> Signup and view all the answers

    What type of medium is required for data transmission?

    <p>Either cable or wireless medium</p> Signup and view all the answers

    What is an example of a central cable in Bus Topology?

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

    What is the most common type of cable used in data networks?

    <p>Twisted pair cable</p> Signup and view all the answers

    What type of transmission is illustrated in the Bus LAN Example?

    <p>Frame Transmission</p> Signup and view all the answers

    What is the main characteristic of fiber optic cables?

    <p>Uses pulses of light</p> Signup and view all the answers

    How many types of network topologies are mentioned in the text?

    <p>5 (including Hybrid)</p> Signup and view all the answers

    What is the primary factor that determines the type of cable chosen for a network?

    <p>All of the above</p> Signup and view all the answers

    What is the purpose of nodes in packet-switching?

    <p>To buffer data if required</p> Signup and view all the answers

    What is an example of wireless transmission media?

    <p>All of the above</p> Signup and view all the answers

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