Summary: Ccna 1

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  • 1 Explore the Network

    This is a preview. There are 49 more flashcards available for chapter 1
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  • What is a host or end device?

    All computers connected to a network that participate directly in network communication are classified as hosts. Hosts are also called end devices.
    An end device is either the source or destination of a message transmitted over the network.
  • What is a server?

    Servers are computers with software that enable them to provide information, like email or web pages, to other end devices on the network. Each service requires separate server software.
  • What is a client?

    Clients are computers with software installed that enable them to request and display the information obtained from the server. An example of client software is a web browser, like Chrome or FireFox.
  • What is a peer-to-peer network?

    Computers function as the servers and clients on the network. This type of network is called a peer-to-peer network.
  • What are the advantages of peer-to-peer networking?

    The advantages of peer-to-peer networking:
    - Easy to set up
    - Less complexity
    - Lower cost since network devices and dedicated servers may not be required
    - Can be used for simple tasks such as transferring files and sharing printers
  • What are the disadvantages of peer-to-peer networking?

    The disadvantages of peer-to-peer networking:
    - No centralized administration
    - Not as secure
    - Not scalable
    - All devices may act as both clients and servers which can slow their performance
  • What categories of network components does the network infrastructure contain?

    - Devices
    - Media
    - Services  

    Devices and media are the physical elements of the network. Media connect devices. Sevices include network applications people use every day.
  • What is an intermediary network device?

    Intermediary divices connect the individual end devices to the network and can connect multiple individual networks to form an internetwork. These intermediary devices provide connectivity and ensure that data flows acress the network.
  • What are the three types of Network Media (medium)?

    • Metallic wires within cables - data is encoded into electrical impulses
    • Glass or plastic fibers (fiber optic cable) - data is encoded as pulses of light
    • Wireless transmission - data is encoded using wavelengths from the electromagnetic spectrum
  • What are the criteria to consider when choosing network media?

    - What is the maximum distance that the media can successfully carry a signal?
    - Into what type of environment will the media be installed?
    - What is the amount of data and the speed at which it must be transmitted?
    - What is the cost of the media and installation?

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