Understanding Consistency
In computer science, consistency refers to the property that ensures data is the same across all nodes in a distributed system. Consistency is one of the critical aspects of the CAP theorem, which dictates that a system can only have two out of three properties: Consistency, Availability, and Partition Tolerance.
Scopes in Programming
Scopes define the context in which a variable or function is accessible. There are generally two types of scopes:
- Global Scope: Variables defined globally can be accessed anywhere in the program.
- Local Scope: Variables defined within a function or block can only be accessed inside that specific context.