Basic Operating System MCQ

Basic Operating System MCQ
161. The time taken by the disk arm to locate the specific address of a sector for getting information is called __________.
  • Rotational Latency
  • Seek Time
  • Search Time
  • Response Time
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162. Which file system does Windows 95 typically use ?
  • FAT16
  • FAT32
  • NTFS
  • LMFS
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163. Identify the odd thing in the services of operating system.
  • Accounting
  • Protection
  • Error detection and correction
  • Dead lock handling
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164. Cryptography technique is used in ________.
  • Polling
  • Job Scheduling
  • Protection
  • File Management
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165. Which of the following is not advantage of multiprogramming?
  • Increased throughput
  • Shorter response time
  • Decreased operating system overhead
  • Ability to assign priorities to jobs
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166. In ______ OS, the response time is very critical.
  • Multitasking
  • Batch
  • Online
  • Real-time
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167. An optimal scheduling algorithm in terms of minimizing the average waiting time of a given set of processes is ________.
  • FCFS scheduling algorithm
  • Round robin scheduling algorithm
  • Shorest job - first scheduling algorithm
  • None of the above
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168. Real time systems are ________.
  • Primarily used on mainframe computers
  • Used for monitoring events as they occur
  • Used for program development
  • Used for real time interactive users
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169. Which technique was introduced because a single job could not keep both the CPU and the I/O devices busy?
  • Time-sharing
  • SPOOLing
  • Preemptive scheduling
  • Multiprogramming
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170. Inter process communication can be done through __________.
  • Mails
  • Messages
  • System calls
  • Traps
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