On single-processor systems, in a correct solution to the critical section problem: a) A process that does not execute a code-related to the Critical Section should not prevent others from entering the Critical Section b) Processes should enter the Critical Section in First-Come-First-Served fashion

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Types of database architectures

A Database Architecture represents the Database Management System’s (DBMS) design (schema). The DBMS architecture makes it easy to understand the components involved in the database system and their relations. The DBMS architecture may vary based on the system on which it runs. Some systems contain both client and server machines whereas some run only on a server machine. Based on the architecture, the system can be classified as centralized, decentralized, or hierarchical.