a.) What is the difference between Symmetric and Asymmetric Structure in a Clustered Computer System? b.) System Calls, is a very important feature in the Operating System. It provides an interface to the services mode available by an Operating System.in this feature, there are two important modes of operations that a program can be executed. Discuss these modes of operations and their relevance to the System Call process. c.) Explain the process involved in a System Call sequence for writing a simple program to read data from one file (Source file) and copy them to another file (destination file)

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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.