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Network Infrastructure Basics
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Network Infrastructure Basics

Created by
@IndebtedOwl

Questions and Answers

Which of the following is NOT a network component category?

  • Protocols (correct)
  • Services
  • Media
  • Devices

    • An end device is where data undergoes regeneration and retransmission.

    False

    Name one type of media used in networks.

    Copper

    A __________ network spans a large geographic area, often connecting multiple LANs.

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

    Match the following network types with their characteristics:

    <p>LAN = Spans a small geographic area WAN = Interconnects LANs over wide areas MAN = Covers a city WLAN = Uses wireless technology</p> Signup and view all the answers

    What role does an intermediary device NOT perform?

    <p>Store data for long periods</p> Signup and view all the answers

    All network types are administered by a single organization.

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

    What is the primary purpose of a Network Interface Card (NIC)?

    <p>To connect a computer to a network</p> Signup and view all the answers

    _____________ cables are made from glass and used for high-speed data transmission.

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

    Which of the following best describes the function of a router?

    <p>Routes data between different networks</p> Signup and view all the answers

    What technology does NOT typically connect LANs to each other?

    <p>Dial-up telephone</p> Signup and view all the answers

    The Internet is owned by a single individual.

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

    What is one of the primary uses of WANs?

    <p>To connect LANs over long distances.</p> Signup and view all the answers

    An _______ is a private collection of LANs and WANs limited to members of an organization.

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

    Match the following connection types with their descriptions:

    <p>Broadband cable = High bandwidth, always on connection via cable TV DSL = High bandwidth connection over a telephone line Satellite = Useful for rural areas without other ISPs Dial-up telephone = Low bandwidth connection using a modem</p> Signup and view all the answers

    Which organization is responsible for maintaining the structure of the Internet?

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

    Extranets allow secure access to a network for only members of the same organization.

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

    What is one reason organizations need faster connections to the Internet?

    <p>To support IP phones and video conferencing.</p> Signup and view all the answers

    Dedicated Leased Lines are reserved circuits used to connect _______ offices.

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

    Which of the following is NOT a service commonly used for internet connections?

    <p>Corporate VPN</p> Signup and view all the answers

    What type of medium is typically used in network communication?

    <p>Both A and B</p> Signup and view all the answers

    Intermediary devices are responsible for managing data as it flows through the network.

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

    What is the main function of a Local Area Network (LAN)?

    <p>To span a small geographic area and provide high-speed bandwidth.</p> Signup and view all the answers

    A ________ is essential for connecting end devices within a network.

    <p>Network Interface Card (NIC)</p> Signup and view all the answers

    Match the network types with their characteristics:

    <p>LAN = Spans a small geographic area usually administered by a single organization. WAN = Connects multiple LANs over wide areas. MAN = Covers a city or a large campus. WLAN = Uses wireless technology for local networking.</p> Signup and view all the answers

    Which of the following is NOT an example of an intermediary device?

    <p>End device</p> Signup and view all the answers

    Fiber optic cables are made from metallic materials.

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

    What is the primary role of an intermediary device in a network?

    <p>To interconnect end devices and manage data flow.</p> Signup and view all the answers

    The two most common types of networks are _______ and _______.

    <p>LAN, WAN</p> Signup and view all the answers

    Which type of network typically involves multiple service providers?

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

    What is the main function of WANs?

    <p>To connect different LANs and offer slower speed links</p> Signup and view all the answers

    The Internet is owned by a specific organization.

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

    Name one type of connection commonly used by organizations for faster internet access.

    <p>Leased lines</p> Signup and view all the answers

    An intranet is a private collection of LANs and WANs _____ to an organization.

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

    Match the following connection types with their descriptions:

    <p>Broadband cable = High bandwidth, always on, offered by cable TV providers DSL = High-bandwidth over a telephone line Satellite = Connection option for areas without ISPs Dial-up = Inexpensive, low bandwidth connection using a modem</p> Signup and view all the answers

    Which organization is NOT involved in maintaining the Internet's structure?

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

    Extranets provide secure access to the network for individuals from the same organization only.

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

    What type of software is Packet Tracer?

    <p>Network simulation software</p> Signup and view all the answers

    _____ WANs use cellular networks to connect to the internet.

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

    What is a major benefit of satellite internet?

    <p>Availability in rural areas</p> Signup and view all the answers

    Study Notes

    Network Infrastructure

    • Comprises three broad categories: Devices, Media, Services.

    End Devices

    • Serves as the source or destination for messages, facilitating data flow through networks.

    Intermediary Devices

    • Connects and manages end devices, including switches, wireless access points, routers, and firewalls.
    • Responsibilities include:
      • Regenerating and retransmitting data signals.
      • Maintaining pathway information through the network.
      • Notifying devices of errors and communication failures.

    Communication Mediums

    • Data transmission occurs through physical mediums, primarily:
      • Metallic cables (copper).
      • Fiber optic cables (glass).
      • Wireless transmissions.

    Network Diagrams

    • Visual representations, known as topology diagrams, depict network devices and connections.
    • Important terms to know:
      • Network Interface Card (NIC)
      • Physical Port
      • Interface

    Types of Networks

    • Local Area Network (LAN):

      • Covers a small geographic area; typically managed by one organization.
      • Offers high-speed bandwidth.

    • Wide Area Network (WAN):

      • Connects multiple LANs across large areas (cities, states, countries).
      • Generally managed by multiple service providers; slower than LANs.

    • Other networks include:

      • Metropolitan Area Network (MAN)
      • Wireless LAN (WLAN)
      • Storage Area Network (SAN)

    Internet vs. Intranet

    • Internet: Global collection of interconnected LANs and WANs; overseen by groups like IETF, ICANN, IAB.

    • Intranet: Private network restricted to organizational members.

    • Extranet: Allows secure access to an organization's network for external authorized users.

    Internet Connection Options

    • Home and small office users can use:

      • Broadband cable (high bandwidth, always on).
      • DSL (runs over phone lines).
      • Wireless WANs and mobile services.

    • Businesses often require faster connections including:

      • Business DSL, leased lines, Metro Ethernet, and more.

    Dedicated Business Connections

    • Options for corporate networks include:
      • Dedicated Leased Lines: Private circuits for remote offices.
      • Ethernet WAN: Extends LAN access across WAN.
      • Satellite: Useful in areas lacking wired solutions.

    Packet Tracer Program

    • A software tool for CCNA studies that enables users to model network behaviors, build networks, and conduct "what if" analyses.

    Network Infrastructure

    • Comprises three broad categories: Devices, Media, Services.

    End Devices

    • Serves as the source or destination for messages, facilitating data flow through networks.

    Intermediary Devices

    • Connects and manages end devices, including switches, wireless access points, routers, and firewalls.
    • Responsibilities include:
      • Regenerating and retransmitting data signals.
      • Maintaining pathway information through the network.
      • Notifying devices of errors and communication failures.

    Communication Mediums

    • Data transmission occurs through physical mediums, primarily:
      • Metallic cables (copper).
      • Fiber optic cables (glass).
      • Wireless transmissions.

    Network Diagrams

    • Visual representations, known as topology diagrams, depict network devices and connections.
    • Important terms to know:
      • Network Interface Card (NIC)
      • Physical Port
      • Interface

    Types of Networks

    • Local Area Network (LAN):

      • Covers a small geographic area; typically managed by one organization.
      • Offers high-speed bandwidth.

    • Wide Area Network (WAN):

      • Connects multiple LANs across large areas (cities, states, countries).
      • Generally managed by multiple service providers; slower than LANs.

    • Other networks include:

      • Metropolitan Area Network (MAN)
      • Wireless LAN (WLAN)
      • Storage Area Network (SAN)

    Internet vs. Intranet

    • Internet: Global collection of interconnected LANs and WANs; overseen by groups like IETF, ICANN, IAB.

    • Intranet: Private network restricted to organizational members.

    • Extranet: Allows secure access to an organization's network for external authorized users.

    Internet Connection Options

    • Home and small office users can use:

      • Broadband cable (high bandwidth, always on).
      • DSL (runs over phone lines).
      • Wireless WANs and mobile services.

    • Businesses often require faster connections including:

      • Business DSL, leased lines, Metro Ethernet, and more.

    Dedicated Business Connections

    • Options for corporate networks include:
      • Dedicated Leased Lines: Private circuits for remote offices.
      • Ethernet WAN: Extends LAN access across WAN.
      • Satellite: Useful in areas lacking wired solutions.

    Packet Tracer Program

    • A software tool for CCNA studies that enables users to model network behaviors, build networks, and conduct "what if" analyses.

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    Quiz Team

    Description

    This quiz covers the fundamental components of network infrastructure, including end devices and intermediary devices. Understand how data flows through these networks and the role of different devices in connectivity. Test your knowledge on the basics of networking terminology and concepts.

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