The value of encryption increases over time simply because encryption keeps your call from eavesdroppers and protects confidential data, Obviously it shows more value when it comes to military or financial affairs.
Design pattern is best practise and a proper solution to a problem faced by software developers this solution based on two principles of object oriented design . 1- Program to an interface not an implementation. 2- Preferring object composition over class inheritance.
More speed is a dominant need in our life and IT field has no exception from that. Redis comes to meet the need of speed in the database domain.