System Design Concept Must know

System Design:

feature

define API

availability

latency performance

scalability

durability

class diagram

security and privacy

cost-effective

1.vertical and horizontal scaling

2.CAP theorem

3.ACID vs BASE

4.Partitioning vs sharding data

5.consistent hashing

6.Optimistic vs pessimistic locking

7.Strong vs eventual consistency

8.Relational vs No SQL

9.Type of no SQL

     .key value

     .wide column

     .document based

     .graph based

10. caching

11.data center /racks/hosts

12.cpu/memory/hard drive/network bandwidth

13. random vs sequential read/write on disk

14. Http vs http2 vs web socket

15.tcp/IP

16.ipv4 vs ipv6

17.tcp vs UDP

18. DNS lookup

19. Http vs TLS

20.Public key infrastructure and certificate authority

21.Load balancer L4 VS L7

22.CDN vs edge

23. Bloom filter and count_min sketch

24.poxos-consenses over distributed hosts

25. Design pattern and object-oriented design

26. Virtual machine and container

27.publisher subscriber or queue

28.map reduce

29. multi-threading ,concurrency,locks,synchronization ,cas