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Compare ubiquitous and hierarchical access in Access Network Design.
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teamques10
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Comparison between ubiquitous and hierarchical access
| Sr No. | Ubiquitous access | Hierarchical access |
|---|---|---|
| 1. | The ubiquitous approach allows all users to transmit and receive data for all areas of network across a shared device or medium. | Hierarchical access provides a user access hierarchy in which traffic defined for its own local metropolitan and wide area remains in that geographical region. |
| 2. | Performance is low | Performance is high due to enhanced segment |
| 3. | No protection from broadcast storm | Protection from broadcast storm |
| 4. | They are spread out and non-structured in nature. It provides 1-D flat network and is used with smaller network. | They are used for structured and layered networks |
| 5. | Isolation and diagnosis of problems are difficult and slow | Isolation and diagnosis of problems are easier and fast |
| 6. | Traffic is less | More Traffic |
| 7. | No cost of network equipment | Additional cost of the network equipment and services to localize the network |
| 8. | Security administration is not easy to regulate and traffic flow between segment is not secured. | Security administration is easy to regulate and secured traffic flow between segment |
| 9. | All services can talk to all other servers so all resources can be shared across entire LAN. | More servers are needed to ensure local access of server based information and segmentation of that access |
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