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Network Topologies and Internet

Network Topologies and Internet

Answer the following critical-thinking questions:

1. Analyze and describe three network topologies and four network types in common use today.

2. Evaluate and explain how the Internet works, including the roles of the Internet backbone, TCP/IP protocol, IP address, switches, and routers.

3. Summarize five common Internet and Web applications.

Your submission should be a minimum of one page of content in length. Please type the question as well as your answer. Properly cite any source utilized in APA format.

Network Topologies and Internet

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APA

Network Topologies and Internet

1. Analyze and Describe Three Network Topologies and Four Network Types

Network Topologies

A network topology defines how devices are arranged and connected within a network. Three common network topologies include:

  1. Bus Topology

    • In a bus topology, all devices are connected to a single central cable (or backbone). Data transmission occurs in one direction, and all devices share the same communication channel.
    • Advantages: Cost-effective, easy to implement.
    • Disadvantages: If the backbone cable fails, the entire network is disrupted.

  2. Star Topology

    • Each device connects to a central hub or switch, which manages data traffic between nodes.
    • Advantages: High reliability—if one connection fails, the rest of the network remains operational.
    • Disadvantages: Requires more cabling and is dependent on the central hub.

  3. Mesh Topology

    • Every device is interconnected, ensuring multiple pathways for data transmission.
    • Advantages: High fault tolerance—failure of one connection does not disrupt the network.
    • Disadvantages: Expensive and complex due to the number of required connections.

Network Types

Four common network types include:

  1. Local Area Network (LAN)

    • A LAN connects computers and devices in a limited area, such as an office or school.
    • Example: Ethernet networks in a corporate office.

  2. Wide Area Network (WAN)

    • A WAN connects multiple LANs over long distances using public or private telecommunications.
    • Example: The Internet itself is a global WAN.

  3. Metropolitan Area Network (MAN)

    • A MAN spans a city or large campus, connecting multiple LANs within a region.
    • Example: City-wide Wi-Fi networks or government infrastructure.

  4. Wireless Local Area Network (WLAN)

    • A wireless LAN operates like a…