Computer Networking Concepts Quiz
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What is the primary function of network architecture?

  • To display the structure of network devices and services (correct)
  • To create software applications for networking
  • To establish security measures for data protection
  • To enhance computer hardware performance

    • Which type of network is characterized by its limited geographic scope?

  • Campus Area Network (CAN)
  • Wide Area Network (WAN)
  • Local Area Network (LAN) (correct)
  • Metropolitan Area Network (MAN)

    • In which type of network are personal devices like smartphones connected?

  • Local Area Network (LAN)
  • Campus Area Network (CAN)
  • Metropolitan Area Network (MAN)
  • Personal Area Network (PAN) (correct)

    • What is one of the primary goals of computer networks?

    <p>To fulfill client connectivity needs</p> Signup and view all the answers

    Which network connects multiple buildings across a campus environment?

    <p>Campus Area Network (CAN)</p> Signup and view all the answers

    Which category of network involves linking multiple city buildings and devices?

    <p>Metropolitan Area Network (MAN)</p> Signup and view all the answers

    Which type of network is commonly used for data center connectivity?

    <p>Access networks</p> Signup and view all the answers

    What is NOT a typical use of computer networking?

    <p>Tracking holiday shopping</p> Signup and view all the answers

    What is a significant disadvantage of using a hub in a network?

    <p>It risks broadcasting data to all connected devices.</p> Signup and view all the answers

    How does a switch differ from a hub in network management?

    <p>A switch bypasses data traffic to enhance data privacy.</p> Signup and view all the answers

    What role do servers play in a computer network?

    <p>They provide resources, data, services, and programs.</p> Signup and view all the answers

    What is the main function of a firewall in a network?

    <p>To monitor and secure network traffic.</p> Signup and view all the answers

    Which network type uses radio signals to initiate connections?

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

    What is a key requirement for using a cable modem effectively?

    <p>It requires a splitter for cable TV and internet services.</p> Signup and view all the answers

    What does the Presentation layer of a network do?

    <p>It converts data protocols and translates data.</p> Signup and view all the answers

    What is a common limitation of using long cables in a network?

    <p>Potential for poor signal and data loss.</p> Signup and view all the answers

    What is the advantage of a wired network compared to a wireless network?

    <p>Not susceptible to outside interference</p> Signup and view all the answers

    Which device typically functions as the central point in a star topology?

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

    What is a characteristic of a wireless router?

    <p>Uses radio frequency to link devices</p> Signup and view all the answers

    What is one of the main disadvantages of using wireless networks?

    <p>Data transfer relies on the technology of clients</p> Signup and view all the answers

    What type of network device combines the functionality of both a modem and a router?

    <p>Wi-Fi Modem</p> Signup and view all the answers

    Which of the following is a drawback of wired networks?

    <p>Higher setup costs</p> Signup and view all the answers

    Why are bus topologies rarely used in modern networks?

    <p>They have scalability issues</p> Signup and view all the answers

    What is a primary factor that affects user mobility in networks?

    <p>Wired versus wireless technology</p> Signup and view all the answers

    What is the primary purpose of a Wide Area Network (WAN)?

    <p>To connect users over vast geographical areas</p> Signup and view all the answers

    Which layer of the OSI Model provides electrical and mechanical connections to the network?

    <p>Physical layer</p> Signup and view all the answers

    What does the Data link layer primarily handle in the OSI Model?

    <p>Error recovery and flow control</p> Signup and view all the answers

    In the context of the OSI Model, what is the role of the Transport layer?

    <p>Providing a stable end-to-end connection</p> Signup and view all the answers

    What type of networks does a WAN consist of?

    <p>A larger network composed of LANs and MANs</p> Signup and view all the answers

    Which layer of the OSI Model is responsible for segmenting and reassembling packets?

    <p>Transport layer</p> Signup and view all the answers

    What does the Network layer do within the OSI Model?

    <p>Receives and combines messages into packets with routing info</p> Signup and view all the answers

    Which of the following statements is true regarding the OSI Model?

    <p>The OSI Model has seven distinct layers.</p> Signup and view all the answers

    What is the main disadvantage of using a hub in a network?

    <p>It broadcasts all data to connected devices.</p> Signup and view all the answers

    Which topology provides a direct connection between two devices?

    <p>Point-to-Point</p> Signup and view all the answers

    What characterizes a fully meshed topology?

    <p>Each device is directly connected to every other device.</p> Signup and view all the answers

    What has recently replaced token ring topology in networking?

    <p>Ethernet technology</p> Signup and view all the answers

    What is the primary function of the session layer in the OSI model?

    <p>Handles control functions for managing connections.</p> Signup and view all the answers

    Why is using a switch in a star network considered more ideal than using a hub?

    <p>A switch isolates data traffic better than a hub.</p> Signup and view all the answers

    Which layer is responsible for converting messages from one code to another?

    <p>Presentation layer</p> Signup and view all the answers

    What is one of the main goals of the OSI reference model?

    <p>To provide a structure for networking.</p> Signup and view all the answers

    How can mesh topology be classified?

    <p>By the number of paths between end devices.</p> Signup and view all the answers

    What occurs in a bus topology?

    <p>Computers share the media using coaxial cable.</p> Signup and view all the answers

    Which layer of the OSI model directly interacts with user applications like web browsers?

    <p>Application layer</p> Signup and view all the answers

    Which of the following layers in the OSI model is responsible for the physical connection to the network?

    <p>Physical layer</p> Signup and view all the answers

    What happens if an error changes the token pattern in a Token Ring network?

    <p>Data traffic may stop circulating.</p> Signup and view all the answers

    What type of device is an Ethernet cable categorized under in the context of OSI layers?

    <p>Physical Layer Device</p> Signup and view all the answers

    Which layer of the OSI model is responsible for the flow of data within a local area network?

    <p>Data Link layer</p> Signup and view all the answers

    Which of the following is NOT a function associated with the presentation layer?

    <p>Understanding requests</p> Signup and view all the answers

    Study Notes

    Computer Networking Key Concepts

    • Computer networks connect computers for shared resources, like internet access, browsing, emailing, file sharing, and more.
    • Organizations (companies, schools, etc.) use networks for tasks like word processing, data analysis, and control systems.

    Network Categories

    • Personal Area Network (PAN): Smallest network, connects personal devices like phones, headphones, etc., with limited span.
    • Local Area Network (LAN): Connects devices in a limited area like a building, house or nearby buildings. Shares resources in the area.
    • Campus Area Network (CAN): Connects buildings on a campus or large organization.
    • Metropolitan Area Network (MAN): Connects city buildings, infrastructure (traffic lights, parking meters), etc., across a metropolitan area.
    • Wide Area Network (WAN): Largest network, spans cities, provinces, and countries. Consists of LANs and MANs.

    Network Architecture

    • Network architecture diagrams show network structure (devices and services).
    • It is designed to satisfy clients' needs.

    Common Network Architectures

    • Access Networks: Connect users and devices in a company building.
    • Data Center Networks: Link servers and applications for easy user access.
    • Wide Area Networks (WANs): Connect users to programs and services (hospital software, etc.).

    The Open Systems Interconnection (OSI) Model

    • The OSI model is a standard for network interaction.
    • It has seven layers with specific functions (electrical connections, flow control, data delivery, etc.).

    Layers of the OSI Model

    • Physical Layer deals with electrical and mechanical connections.
    • Data Link Layer: handles error recovery, flow control, and sequencing for terminals (MAC addresses).
    • Network Layer: acts as a controller receiving, segmenting, and handling outgoing messages.
    • Transport Layer: responsible for end-to-end delivery and deals with message integrity.
    • Session Layer controls and terminates connections to satisfy user requests.
    • Presentation Layer: converts messages, handles data compression, and encryption
    • Application Layer: interacts with applications.

    Network Types and Devices

    • Wired Networks: Use cables and connectors for connections.
    • Wireless Networks: Use radio signals for connections, becoming more common.
    • Wired Network Devices:
    • LAN Ethernet Cable: connects devices within a local area.
    • Hub: connects devices, but broadcasts data to all devices
    • Switch: provides direct connection from sender to receiver.
    • Cable Modem: uses cable connection for broadband.
    • Servers: provide resources, data, services, etc. to clients.
    • Firewalls: security devices, monitor and secure data traffic.
    • Wireless Network Devices:
    • Wireless Access Point (WAP): connects wireless devices to wired networks.
    • Wireless Router: combines router, switch, and WAP to connect wireless devices.

    Network Topologies

    • Point-to-Point Network: simple network connection between two devices
    • Token Ring Network: deterministic network with fixed message times for accessing communications
    • Bus Network: devices share a common cable for media transmission
    • Star Network: most common, all devices connect to a central device (hub or switch)
    • Mesh Network: Each device is directly connected, more robust with several paths for communication.

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    Related Documents

    Computer Networking Concepts PDF

    Description

    Test your knowledge on the key concepts of computer networking, including the different categories of networks such as PAN, LAN, CAN, MAN, and WAN. Discover how organizations utilize networks for various tasks and the importance of network architecture.

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