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Which of the following is not an operating system?
DOS
Linux
Windows
Oracle
Answer : d Oracle
Oracle is not an operating system whereas DOS , Linux and windows are operating systems.
Oracle Database (commonly referred to as Oracle DBMS or simply as Oracle) is a multi-model database management system produced and marketed by Oracle Corporation.
It is a database commonly used for running online transaction processing (OLTP), data warehousing (DW) and mixed (OLTP & DW) database workloads. Oracle Database is available by several service providers on-prem, on-cloud, or as hybrid cloud installation.
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