Availability

 Availability:

Example: Official CBSE website on Result day => Lots of students visit website => Website not available

To make sure that it is available every time like Google.

Monolithic Architecture: On same server ,all modules deployed at same place.

Distributed System : Replica of each module is done.

Fault Tolerance is directly proportional to Availability. Hence Distributed System is more available.

How to increase Availability:

1. Use of Distributed System

2. Replication and Redundancy

Replication : It involves redundancy , copying of data from 1 node to another or synchronization of states between nodes.

Redundancy: It is duplication of nodes, in case some of them are failing.



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