Necessity of Two properties among CAP theorem

 Necessity of Two properties among CAP theorem

For a distributed System, CAP Theorem states that it is possible to attain only two properties and the third would be always compromised. 

System Design can select :

• Consistency and Partition Tolerance but Availability is compromised.
• Consistency and Availability but Partition Tolerance is compromised.
• Availability and Partition Tolerance but Consistency is compromised.

Consistency and Availability when system is centralized  only possible when same DB is used.

Partition Tolerance is important part .So we have option to choose either Availability or Consistency inorder to achieve CAP Theorem statement