Networking Need to Know

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  1. Concerned with the transmission and reception of the unstructured raw bit stream over the phsical medium
    Physical Layer  (1)
  2. Provides error-free transfer of data frames from one node to another over the Physical layer. Establishes & terminates the logical link between nodes. Error checking; media access control. Defines how data is formatted for transmission.
    Data Link Layer  (2)
  3. Provides connectivity and pathe selection between two host sustems. Controls the operations of the subnet, deciding which physical path the data takes. Routing, logical-physical address mapping.
    Network Layer  (3)
  4. Ensures that messages are delivered error-free, in sequence, and with no losses or duplications. Acknowledgement; traffic control, multiplexing. Breaking down large files into smaller segments.
    Transport Layer  (4)
  5. Establishes, manages, and terminates sessions between two communicatinf hosts. Allows session establishment between processes running on different stations.
    Session Layer  (5)
  6. Ensures that information sent from the application layer of one system is readable by the applicaion layer of another. Formats the data, conversion; compression; encryption; name recognition.
    Presentation Layer  (6)
  7. Serves as the window for users and application processes to access the network services. FTP
    Application Layer  (7)
  8. Data transmitted at this layer is called "Bits"
    Physical Layer
  9. Data transmitted at this layer is called "Frames"
    Data Link Layer
  10. Data transmitted at this layer is called "Packets"
    Network Layer
  11. Data transmitted at this layer is called "Segments"
    Transport Layer
  12. 10.0.0.0  to  10.255.255.255
    Class A Private
  13. 172.16.0.0  to  172.31.255.255
    Class B Private
  14. 192.168.0.0  to  192.168.255.255
    Class C Private
  15. 224 - 239  (1110XXXX)
    Class D prefix
  16. 240 - 254  (1111XXXX)
    Class E prefix
  17. Defines how data is sent through a network. Covers the same processes as the two lower OSI layers. (TCP/IP)
    Link or Network Interface Layer
  18. Packages data and connects independent networks. Determines the best path through the network. (TCP/IP)
    Internet Layer
  19. Provides communication session management between hosts. Represents the core of the TCP/IP architecture. (TCP/IP)
    Transport Layer
  20. Defines TCP/IP application protocols and how host programs interface with transport layer services to use the network.  (TCP/IP)
    Application Layer

Card Set Information

Author:
Spaniard
ID:
313183
Filename:
Networking Need to Know
Updated:
2015-12-22 14:16:10
Tags:
OSI network IPAddress
Folders:

Description:
OSI Reference Model, IP Address ranges
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