Computer Networking Lecture 1: Introduction to Networks and Internet
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Questions and Answers

What is the transmission rate of a link measured in?

  • Gigabits/hour
  • Megabits/minute
  • Bits/second (correct)
  • Bytes/second
  • What is the term for any device connected to the network with a microprocessor?

  • Non-traditional device
  • Peripheral
  • End system (correct)
  • Packet switch
  • What is typically used for forwarding packets between different networks?

  • Optical fiber
  • Copper wire
  • Switches
  • Routers (correct)
  • What is the network edge composed of?

    <p>Computing devices or hosts</p> Signup and view all the answers

    Which type of communication links are made up of different types of physical media including copper wire, optical fiber, and radio spectrum and satellite?

    <p>Wired communication links</p> Signup and view all the answers

    What is the function of the network edge in a computer network?

    <p>To connect end systems to the network</p> Signup and view all the answers

    What is the primary purpose of the transport layer in a computer network?

    <p>To provide reliable data transfer between end systems</p> Signup and view all the answers

    Which layer of the Internet protocol stack is responsible for addressing and routing packets?

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

    What does the term 'packet switching' refer to in the context of computer networks?

    <p>Breaking data into packets and sending them independently across a network</p> Signup and view all the answers

    In the context of computer networks, what is the role of 'access networks'?

    <p>To connect end systems to the network</p> Signup and view all the answers

    What is the average transmission rate offered by the 802.11 (WiFi) protocol in a Wireless LAN?

    <p>450 Mbps</p> Signup and view all the answers

    Which technology is typically used for wide-area wireless networks with network coverage of 1-5 km and offering between 1 and 10 Mbps?

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

    In the context of wireless networks, what is the network coverage typically supported by Wide-area Wireless or cellular networks?

    <p>1-5 km</p> Signup and view all the answers

    What is the primary physical media used in Wireless LANs to support network coverage within a building?

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

    What is the typical transmission rate range offered by Wide-area Wireless or cellular networks using 3G, 4G, or 5G technologies?

    <p>1 Mbps - 10 Mbps</p> Signup and view all the answers

    In the context of computer networking, what type of physical media uses concentric copper conductors to transmit data in electron format?

    <p>Coaxial cable</p> Signup and view all the answers

    Which physical medium is characterized by high-speed operation with transmission rates between 10-100 Gbps and low error rate?

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

    What type of communication method establishes a dedicated communication path or circuit between two devices before data transmission begins?

    <p>Circuit switching</p> Signup and view all the answers

    Which technique involves dividing data into smaller units called packets for communication?

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

    In the context of physical media, which type of guided physical media allows signals to propagate freely without wires?

    <p>Electro-magnetic radio waves</p> Signup and view all the answers

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