Network Hubs: Active vs Passive Hub
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Questions and Answers

What is the main function of a network switch?

  • Forwarding data to an IP address
  • Sharing bandwidth among all ports
  • Opening and closing network connections (correct)
  • Allocating bandwidth for each port
  • How does a switch differ from a hub?

  • A hub forwards data to an IP address, while a switch sends information directly to a specific destination port
  • A hub shares bandwidth among all its ports, while a switch allocates bandwidth for each port (correct)
  • A hub is more advanced than a switch in networking capabilities
  • A switch is used for data transferring, while a hub is used for filtering & forwarding data
  • Which networking device acts as a portal for devices to connect to a local area network wirelessly?

  • Hub
  • Router
  • Switch
  • Wireless Access Point (AP) (correct)
  • What is the primary advantage of using an Access Point (AP) in a network?

    <p>Allowing data transmission while moving</p> Signup and view all the answers

    How does a switch handle data traffic compared to a router?

    <p>Switch filters and forwards data, while a router directs data to an IP address or network</p> Signup and view all the answers

    What distinguishes a wireless Access Point (WAP) from other network devices?

    <p>Combines a transmitter and receiver to form a WLAN</p> Signup and view all the answers

    Which statement best describes the function of an access point in networking?

    <p>Allows connection to a local area network wirelessly</p> Signup and view all the answers

    What makes an access point (AP) particularly useful in extending networks wirelessly?

    <p>Extends coverage without the need for additional equipment</p> Signup and view all the answers

    Which characteristic distinguishes a router from a switch in terms of data forwarding?

    <p>Switch sends data directly to specific destination ports, while router forwards data based on IP addresses</p> Signup and view all the answers

    Study Notes

    Network Devices

    • Hub: A network hub is a simple network device that connects multiple devices together, but it cannot filter information, reduce network traffic, or broadcast data to all ports.
    • Types of Hubs:
      • Active Hub: Has its own power supply, cleans and boosts the signal, and extends the distance between nodes.
      • Passive Hub: Collects wiring from the power supply and different nodes of an active hub, but does not improve or clean the signal.

    Repeater

    • A repeater reproduces the signal on a similar network before it gets weak or damaged, but does not strengthen the signal.
    • It is a two-port device: one port for incoming signals and one for outgoing signals.
    • Effective in office buildings, schools, and factories where a single wireless router cannot reach all areas.

    Bridge

    • A bridge unites two or more network segments, storing and transmitting frames among the various segments.
    • It aggregates partitioned network segments and controls traffic that moves between them.
    • Types of Bridges:
      • Transparent Bridge: Interconnects LANs that use the same protocol suite.
      • Translation Bridge: Joins LANs that use different protocols.
    • A bridge builds a lookup table of MAC addresses and port locations to determine whether to forward a frame or discard it.

    Router

    • A router receives, analyzes, and forwards incoming packets to another network based on the target IP address.
    • It uses a routing table to decide the best available route for the packet to reach its destination quickly and accurately.
    • The routing table can be of two types.

    Switch

    • A switch is a physical circuitry part that controls the flow of signals in networking.
    • It enables opening or closing a connection to allow or stop the flow of signals.
    • A switch is more advanced than a hub, but less advanced than a router.
    • It allocates bandwidth for each port, unlike a hub that shares bandwidth among all its ports.

    Access Point

    • An access point (AP) is a wireless network device that acts as a portal for devices to connect to a local area network.
    • It can extend an existing network's wireless coverage and increase the number of users who can connect.
    • Advantages:
      • Easier and faster to install.
      • Allows data transmission even when the user is moving.
      • Simple to extend to places where wires and cables are inaccessible.
    • Disadvantages:
      • Limited range of network devices, causing issues for many users.
      • Other disadvantages (not specified).

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    Description

    Learn about the differences between active and passive network hubs, their advantages, disadvantages, and how they function in a network. Active hubs have their own power supply and play a key role in signal transmission, while passive hubs lack these capabilities.

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