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Networking

LU 1

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What is topology? describes how parts of a whole work together
What is the difference between physical and logical topology? physical topology: refers to the networks hardware and how computers, other devices and cables work together to form a physical network logical topology: refers to how the software controls access to network resources
What is topology? describes how parts of a whole work together
What is the difference between physical and logical topology? physical topology: refers to the networks hardware and how computers, other devices and cables work together to form a physical network logical topology: refers to how the software controls access to network resources
Definition of client-server model? resources are managed by a Network Operating System (NOS) via a centralised directory database for example, Active Directory
Advantages and disadvantages of client-server model Advantages: Managing client data and other resources Ensuring authorized user access Controlling user file access Restricting user network access Disadvantages More memory, processing power, and storage capacities
OSI LAYERS: A + P Application layer: describes the interface between applications, on separate computers Presentation layer: is responsible for reformatting, compressing and/or encrypting data in a way that the receiving application can read
OSI LAYERS: S + T Session layer: describes how the data on applications are synced and recovered if the messages don't arrive intact on the receiving application Transport layer: transports the Application layer payloads from one application to another
OSI LAYERS: N + D + P Network layer: is responsible for moving messages from one node to another until it reaches its destination host Data link: puts control information in the data link header and at the end of a packet in a trailer
OSI LAYERS: P Physical layer: is responsible for sending bits via a wired or wireless transmission
Created by: Zeni
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