Operating System MCQ Questions

1) Which is the best process to access number of records from the same file ?A batch jobAn on-line jobA real time jobAll of aboveShow/Hide AnswerAnswer = A Explanation: Many batch jobs are run in parallel and JCL is used to control the operation of each job2) What is the name of the arrangement where several central processing units share one memory ?Multi taskingMulti programmingMulti