You are responsible for maximizing the utilization of computing resources for a large scale multi user system. You are receiving complaints from most users about response and turn around times when accessing the server. Investigations reveal the CPU is being utilized only 20% of time. Which of the following could be reasons for the poor CPU utilization? Explain why do you choose them and not the others. a) Insufficient Memory b) Frame Size too small c) too much memory d) one CPU is not enough.

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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.