Operating Systems Overview

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Questions and Answers

What is the primary role of an operating system?

  • To manage computer memory and storage devices
  • To provide a user-friendly graphical interface
  • To serve as an interface between user applications and computer hardware (correct)
  • To compile and execute software programs

Which of the following is NOT a key function of an operating system?

  • Memory management
  • File management
  • Process scheduling
  • Compiler optimization (correct)

What is the purpose of the file management component in an operating system?

  • To manage and coordinate access to files and directories (correct)
  • To schedule and execute user programs
  • To control and manage input/output devices
  • To allocate and deallocate memory for running processes

Which of the following is a key responsibility of the security component in an operating system?

<p>Controlling access to system resources and data (C)</p>
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What is the purpose of job accounting in an operating system?

<p>To monitor and record system resource usage by different processes or users (A)</p>
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In a batch operating system, what is the role of the operator?

<p>To group similar jobs into batches based on their requirements (A)</p>
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What is a key advantage of batch operating systems?

<p>Processors know the expected completion time of jobs in the queue (C)</p>
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Which of the following is a disadvantage of batch operating systems?

<p>Computer operators need to be well-trained and knowledgeable (C)</p>
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What is the purpose of time-sharing or multitasking operating systems?

<p>To allocate time slices (quanta) to each task for execution (A)</p>
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What is a key advantage of time-sharing operating systems?

<p>Each task gets an equal opportunity to execute (A)</p>
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Which of the following is NOT an advantage of time-sharing operating systems?

<p>Easy to manage large work repeatedly (B)</p>
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What is the primary advantage of time-sharing systems?

<p>Reduced hardware costs and increased efficiency through resource sharing (B)</p>
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Which of the following is a disadvantage of time-sharing systems?

<p>Higher overhead due to scheduling and context switching (A)</p>
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What is the primary purpose of a multi-programming operating system?

<p>To execute multiple programs concurrently on a single CPU (A)</p>
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What is the primary advantage of a multi-processing operating system?

<p>Increased system throughput due to the use of multiple CPUs (D)</p>
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What distinguishes a multi-tasking operating system from a multi-programming operating system?

<p>Multi-tasking systems use round-robin scheduling to run multiple programs simultaneously (C)</p>
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Which of the following is a disadvantage of multi-processing operating systems?

<p>Higher system complexity due to the use of multiple CPUs (B)</p>
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