Networking Concepts (Comptia Video)
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Questions and Answers

What is meant by the term 'host' in networking?

  • A device that connects to the internet
  • A type of network architecture
  • A network printer or peripheral
  • A server or client computer (correct)

    • How is a Local Area Network (LAN) defined?

  • A network that connects multiple countries
  • A network of devices connected within a single building or close proximity (correct)
  • A type of server-client architecture
  • Any network covering a large geographic area

    • What makes multiple floors of computers in one building a LAN?

  • The ownership and management by the same IT group (correct)
  • The physical distance between devices
  • The number of connected devices
  • The use of wireless technology

    • Which scenario represents a Campus LAN?

    <p>Multiple buildings owned by the same entity and connected</p> Signup and view all the answers

    What distinguishes a Wide Area Network (WAN) from a LAN?

    <p>WANs connect devices over large distances</p> Signup and view all the answers

    Which of the following best explains why a simple connection of two computers is a LAN?

    <p>They are directly connected to each other.</p> Signup and view all the answers

    In what situation would a WAN be applicable?

    <p>Linking buildings in different cities</p> Signup and view all the answers

    How do the terms 'hosts' and 'nodes' differ in networking?

    <p>Hosts refer only to computers, while nodes can include any device on the network.</p> Signup and view all the answers

    What is a significant drawback of the mesh topology?

    <p>Difficulties in troubleshooting when links fail</p> Signup and view all the answers

    Which network topology is commonly used for Wide Area Networks (WANs)?

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

    What defines a Local Area Network (LAN) compared to a Wide Area Network (WAN)?

    <p>LANs are managed by a single entity without external involvement.</p> Signup and view all the answers

    Which characteristic of mesh topology enhances its reliability?

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

    What is a typical challenge when implementing a mesh topology within a network?

    <p>Need for extensive cabling and network devices.</p> Signup and view all the answers

    Why is the Internet often compared to a mesh topology?

    <p>It connects multiple smaller networks and locations.</p> Signup and view all the answers

    What factor determines if a network is classified as a WAN?

    <p>Involvement of multiple entities and locations.</p> Signup and view all the answers

    In which scenario would point-to-point links between devices in a mesh topology be considered impractical?

    <p>In large networks requiring many connections.</p> Signup and view all the answers

    What benefit does the redundancy in a mesh topology offer?

    <p>Paths can be rerouted if one fails.</p> Signup and view all the answers

    Which topology is generally easier to troubleshoot, compared to mesh topology?

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

    What accurately describes half duplex communication?

    <p>Only one device can communicate at a time.</p> Signup and view all the answers

    Which topology is identified as the most common in everyday use?

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

    How does a hub handle incoming data packets?

    <p>It floods all ports to find the destination.</p> Signup and view all the answers

    What is a primary limitation when utilizing a hub in a network?

    <p>Bandwidth is reduced with each additional device.</p> Signup and view all the answers

    Why are switches considered to be more advanced than hubs?

    <p>They can learn connected devices and establish direct connections.</p> Signup and view all the answers

    What happens to a star topology when the central switch fails?

    <p>The entire network segment goes down.</p> Signup and view all the answers

    What does the term 'converged' refer to in switch functionality?

    <p>The switch has learned the device associations.</p> Signup and view all the answers

    What distinguishes full duplex from half duplex communication?

    <p>Full duplex enables simultaneous send and receive.</p> Signup and view all the answers

    What potential security risk is associated with using a hub?

    <p>Data can be intercepted by all devices on the network.</p> Signup and view all the answers

    Why is a hub considered an outdated technology?

    <p>It cannot manage bandwidth efficiently as network demands increase.</p> Signup and view all the answers

    In star topology, what role does the central device play?

    <p>It manages all communication between connected nodes.</p> Signup and view all the answers

    What is a characteristic of a logical bus topology?

    <p>It supports both direct point-to-point and broadcast communication.</p> Signup and view all the answers

    How do switches maintain efficiency in data transmission?

    <p>They create a learning table of connected MAC addresses.</p> Signup and view all the answers

    Which factor contributes to the ease of configuration in star topology?

    <p>The centralized nature of the network allowing for simple management.</p> Signup and view all the answers

    In a peer-to-peer network, what role can any computer take on?

    <p>Both server and client</p> Signup and view all the answers

    What is a significant disadvantage of a peer-to-peer network in terms of management?

    <p>High security risks</p> Signup and view all the answers

    Why are bus and ring topologies considered outdated?

    <p>They are inefficient and do not lend themselves well for security.</p> Signup and view all the answers

    What distinguishes a centralized network from a decentralized one?

    <p>Centralized networks require servers to manage authentication.</p> Signup and view all the answers

    In what scenario would a computer be acting as a server?

    <p>When it shares files with another computer.</p> Signup and view all the answers

    What is a common recommendation for the number of computers in a peer-to-peer network?

    <p>Limit to about 10</p> Signup and view all the answers

    What type of network is typical for small offices or home offices?

    <p>Peer-to-peer network</p> Signup and view all the answers

    In a large enterprise network, what role does a server typically serve?

    <p>It primarily serves clients for authentication and services.</p> Signup and view all the answers

    What feature characterizes a decentralized network?

    <p>It allows for more flexible management.</p> Signup and view all the answers

    What aspect is crucial for security in centralized networks?

    <p>Utilizing a centralized authentication system.</p> Signup and view all the answers

    Which type of topology is commonly used in modern networks?

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

    What is a key characteristic of a centralized network?

    <p>Central management of services.</p> Signup and view all the answers

    Why might an IT professional recommend limiting the number of devices in a peer-to-peer network?

    <p>To avoid security vulnerabilities.</p> Signup and view all the answers

    What role does the Internet Service Provider (ISP) play in a typical home network?

    <p>Provides internet connectivity.</p> Signup and view all the answers

    What is the primary purpose of WAN providers in connecting remote office buildings?

    <p>They lease established network connections to businesses.</p> Signup and view all the answers

    Which network is specifically characterized by the use of Bluetooth devices?

    <p>Personal Area Network (PAN)</p> Signup and view all the answers

    What distinguishes a Campus Area Network (CAN) from other types of networks?

    <p>It connects multiple buildings within a specific area.</p> Signup and view all the answers

    In the context of networks, what is a node?

    <p>Any device connected to the network.</p> Signup and view all the answers

    Which type of networks typically require leasing rather than ownership?

    <p>Wide Area Networks (WAN)</p> Signup and view all the answers

    What type of server might provide file services in a client-server network?

    <p>File server</p> Signup and view all the answers

    What is a significant characteristic of Intermediate nodes in a network?

    <p>They are responsible for directing traffic in the network.</p> Signup and view all the answers

    Which statement accurately describes a Classical Client-Server Network?

    <p>Clients rely on servers for various services like web and file management.</p> Signup and view all the answers

    What best defines a Municipal Area Network (MAN)?

    <p>A network serving local city inhabitants and tourists.</p> Signup and view all the answers

    Where would you most likely encounter a Campus Area Network (CAN)?

    <p>At a university connecting multiple school buildings.</p> Signup and view all the answers

    What is the main concern associated with using the Internet for inter-office connections?

    <p>It is considered an untrusted network for sensitive data.</p> Signup and view all the answers

    Which term refers to the connections made between devices in a network?

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

    How are services typically provided in a client-server model?

    <p>From dedicated servers to clients seeking access.</p> Signup and view all the answers

    What is an essential distinction between endpoint nodes and intermediate nodes?

    <p>Intermediate nodes process and forward data.</p> Signup and view all the answers

    Study Notes

    Network Terminology

    • Host: A client or server computer on a network.
    • Node: A general term for any device on a network; can be a host, switch, or router.

    Local Area Network (LAN)

    • A LAN can be as simple as two computers connected together or as complex as multiple floors or buildings of a company's technology.
    • A key factor in defining a LAN is that it's managed by the same entity.
    • Buildings or multiple floors can be considered one LAN if the same entity manages all devices within those spaces.

    Campus Area Network (CAN)

    • A CAN connects multiple buildings within a close-proximity campus (like a company campus or a university).
    • A CAN is distinguished by its management under the same entity.

    Wide Area Network (WAN)

    • A WAN connects geographically distant networks (e.g., buildings in different cities or countries).
    • WANs utilize services from companies (WAN providers) who supply the necessary infrastructure (e.g., cabling, satellites) for connection.
    • Companies lease WAN connections to connect geographically separated locations.
    • The internet is similar to a WAN but is a general term for all interconnected networks.

    Personal Area Network (PAN)

    • A PAN connects Bluetooth devices.

    Municipal Area Network (MAN)

    • A MAN is a network organized in a city's downtown area for business people or tourists.
    • Nodes: Devices on the network.
    • Intermediate nodes: Devices that connect other devices (e.g., switches, routers).
    • Endpoint nodes: Devices where data starts or ends (e.g., computers, printers).
    • Links: Connections between devices.

    Client-Server Networks

    • Client-server networks rely on servers to provide services to clients.
    • Clients use standard operating systems (e.g., Windows, Linux).
    • Servers use server-version operating systems that offer various services (e.g., web services, DHCP services, and file services).
    • Clients and servers are distinct roles and do not change roles.
    • Enterprise networks are centralized. Most large businesses (thousands or more hosts) use client server networks.

    Peer-to-Peer Networks

    • In peer-to-peer networks, every computer can act as both a client and a server.
    • Small networks (like home or small office setups) commonly use peer-to-peer.
    • Sharing files between devices is a fundamental function.
    • Managing peer-to-peer networks becomes complex with more computers.

    Centralized vs. Decentralized Networks

    • Centralized: Services provided by specific servers to all clients (e.g., large enterprise networks).
    • Decentralized: All devices act as both clients and servers (e.g., SOHO or smaller networks).

    Network Topologies

    • Topology: Describes how devices are connected in a network.
    • Point-to-Point: Two devices connected directly.
    • * **Half-duplex:** Only one device can transmit at a time (e.g., walkie-talkie).

    •    **Full-duplex:** Both devices can transmit simultaneously (e.g., phone).
    • Star: Devices connect to a central device (e.g., switch or hub).
    • A switch is a smart device, that learns which devices are attached at which ports. A hub sends data to every device in the network (Flooding).
    • Logical Star and Physical Star Topology:* Hubs are physical star but act as logical bus. Switches are physical star but act as logical star for fast data transmission.
    • Mesh: Every device connected with multiple links (common in WANs/internet).

    LANs and WANs

    • LANs are often used in companies, small offices or home offices.
      • Can span multiple buildings if managed by one entity.
    • WANs connect geographically distant LANs and often employ WAN provider services to connect distant locations together.

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    Description

    Test your knowledge on key networking concepts such as hosts, Local Area Networks (LANs), and Wide Area Networks (WANs). This quiz covers definitions and scenarios that will help clarify the differences between various types of networks. Perfect for students or professionals looking to refresh their understanding of networking basics.

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