Topology




TOPOLOGY

Arrangement of devices

We are having two types of topologies. They are

1) Physical topology


2) Logical topology
Physical Topology

It means physical arrangement of devices.

We are having five types of physical topologies. They are
•       Bus topology
•       Ring topology
•       Star topology
•       Tree topology
•       Mesh topology
Logical Topology

Logical arrangement of devices.

We are having two models in logical topologies. They are
•       Workgroup model or peer to peer Model
•       Domain Model or client server model.
Workgroup Model or Peer-Peer Model


  • If you install any Operating System (client os/Server os). By default all the computers belongs to workgroup model.
  • Work group model computers are standalone computers or individual computers.
  • Workgroup model computers doesn’t depend on any other computers
  • Workgroup model computers create “LOCAL USER ACCOUNTS”. For  Local user accounts we are using SAM database.
  • SAM stands for Security Accounts Manager


Practical 1
How to identify workgroup model computer?

Method1: Right click on computer select properties.

Method2: Open “cmd” and type the command “C:/>net accounts” and it displays computer role as server if server operating system is installed.

Method3: Open “cmd” and type the command “c:/>systeminfo” and it displays as OS config as  Standalone server.

Practical 2:
How to create local user accounts?

Note:- workgroup model computers only we can create local user accounts.

Method:
Right click on computer, select Manage go to configuration->Local users & Groups
Right click on “users” and select “new user” and type the username. Select “create” ”close”.

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