2):-When a table has no suitable _ key, the database designer speciiesa(n)__ a) primary, foreign b) foreign, primary c) primary, artificial d) artificial, primary 3):-Distinguish independant and dependent entities is a(n) __ process a) one time b) physical design  c) iterative d) logical design  4):- In some ER modelling conventions, _ enities are called strong and __ entites are called weak. a) dependant, independent b) independent, dependent c) master, dependent d) dependent, master

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A:

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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.