Operating System Basics Questions and Answers

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Operating System Basics questions with answers are among the most commonly asked in technical interviews and exams. This section covers core OS concepts like process management, memory allocation, file systems, and scheduling algorithms. Practicing programming questions and answers on operating systems helps strengthen your conceptual clarity and practical understanding of computer architecture. Frequently featured in GATE, TCS, Infosys, and Wipro placements, these MCQs provide a balanced mix of theoretical and applied knowledge. Clear explanations make this section an ideal resource for anyone preparing for system-related roles or competitive exams.

Operating System Basics

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91. A process is

  • program in execution
  • a concurrent program
  • any sequential program
  • something which prevents deadlock
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92. The collection of processes on the disk that is waiting to be brought into memory for execution forms the ___________

  • Ready queue
  • Device queue
  • Input queue
  • Priority queue
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93. Demand paged memory allocation

  • allows the virtual address space to be independent of the physical memory
  • allows the virtual address space to be a multiple of the physical memory size
  • allows deadlock tobe detected in paging schemes
  • is present only in Windows NT
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94. Which is not an Operating System ?

  • Windows 95
  • MS-DOS
  • Windows 3.1
  • Windows 2000
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95. The operating system manages ________.

  • Memory
  • Processor
  • Disk and I/O devices
  • All of the above
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96. It is not the layer of the Operating system.

  • Kernel
  • Shell
  • Application program
  • Critcal Section
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97. ___________ begins at the root and follows a path down to the specified file

  • Relative path name
  • Absolute path name
  • Standalone name
  • All of the above
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98. Who is called a supervisor of computer acitvity ?

  • CPU
  • Operating system
  • Control unit
  • Application Program
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99. Consider the two statements. (A) Protection is an internal problem. (B) Security is considered as an external environment within which the system works. Which of the statement is not true?

  • Only A
  • Only B
  • Both A and B
  • None of the above
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100. The process related to process control, file management, device management, information about system and communication that is requested by any higher level language can be performed by __________.

  • Editors
  • Compilers
  • System Call
  • Caching
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