Practice MCQ Operating System

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1794 The operating system creates _____ from the physical computer
Options:Virtual space B. Virtual computers      C. Virtual device D. None

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1795 ______ shares characteristics with both hardware and software
Options:Operating system B. Software C. Data D. None

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1797 Which is the first program run on a computer when the computer boots up?
Options:System software B. Operating system C. System operations D. None

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1798 Which is built directly on the hardware?
Options:Computer Environment B. Application Software C. Operating System D. Database System

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1799 Which of the following Operating System does not implement multitasking truly?
Options:Windows 98 B. Windows NT C. Windows XP D. MS DOS

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1800 Which runs on computer hardware and serve as platform for other software to run on?
Options:Operating System B. Application Software C. System Software D. All

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1801 Which is the layer of a computer system between the hardware and the user program
Options:Operating environment B. Operating system C. System environment D. None

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1802 . The primary purpose of an operating system is:
Options:To make the most efficient use of the computer hardware B. To allow people to use the computer, C. To keep systems programmers employed D. To make computers easier to use

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1803 When a computer is first turned on or restarted, a special type of absolute loader called ____ is executed
Options:Compile and Go loader B. Boot loader C. Bootstrap loader D. Relating loader

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1804 Which of the following Operating systems is better for implementing a Client-Server network
Options:MS DOS B. Windows 95     C. Windows 98 D. Windows 2000

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1805 The operating system manages
Options:Memory B. Processes C. Disks and I/O devices D. all of the above

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1806 CUsually, in MSDOS, the primary hard disk drives has the drive letter ____
Options:Options:A B. B C. C D. D

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1807 What is the function of an operating system?
Options:Manages computer’s resources very efficiently B. Takes care of scheduling jobs for execution C. Manages the flow of data and instructions D. All of the above

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1808 Which is not the function of the Operating System?
Options:Memory management B. Disk management C. Application management D. Virus Protection

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1809 Which Operating System doesn’t support networking between computers?
Options:Windows 3.1 B. Windows 95 C. Windows 2000 D. Windows NT

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1811 Which file keeps commands to execute automatically when OS is started?
Options:command.com B. any batch file C. autoexec.bat D. config.sys

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1812 . What should be the extension to execute files?
Options:EXE B. BAT C. COM D. All of the above

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1813  Which of the following file format supports in Windows 7? A)  NTFS B)  BSD C)  EXT D)  All of the above
Options:

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1814 The Primary job of the operating system is A)  Manage Commands B)  Manage Users         C)  Manage Programs D)  Manage Resources
Options:

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1815 What is the meaning of “Hibernate” in Windows XP/Windows 7? A)  Restart the Computer in safe mode B)  Restart the Computer in hibernate mode C)  Shutdown the Computer terminating all the running applications D)  Shutdown the Computer without closing the running applications
Options:

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1816 Who is called a supervisor of computer activity? A)  Memory B)  Operating System C)  I/O Devices D)  Control Unit
Options:

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1817 Virtual Memory is A)  Extremely Large Main memory B)  Extremely Large Secondary memory C)  An illusion of extremely large main memory D)  An illusion of extremely large secondary memory
Options:

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1819 What should be the first step while OS upgrading? A)  Delete old Operating System B)  Backup old Operating System C)  Backup Critical Data D)  Format Hard Disks
Options:

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1820 Unix Operating System is an A)  Multi User Operating System B)  Time Sharing Operating System C)  Multi Tasking Operating System D)  All the Above
Options:

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1821 In which type of the following OS, the response time is very crucial. A)  Network Operating System B)  Real Time Operating System C)  Batch Operating System D)  Unix Operating System
Options:

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1822 The file system “NTFS” stands for A)  New Type File System B)  Never Terminated File System C)  New Technology File System D)  Non Terminated File System
Options:

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1823 Which one of the following is not the function of Operating System?
Options: Resource Management B.  File Management C.  Networking D.  Processor Management

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1824 The Banker’s algorithm is used
Options: to rectify deadlock B.  to detect deadlock         C.  to prevent deadlock D.  to slove deadlock

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1825 Which of the following concept is best to preventing page faults?
Options: Paging B.  The working set C.  Hit ratios D.  Address location resolution

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1826 Which of the following memory unit that processor can access more rapidly
Options: Main Memory B.  Virtual Memory C.  Cache memory D.  Read Only Memory

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1828 Bringing a page into memory only when it is needed, this mechanism is called
Options: Deadlock B.  Page Fault C.  Dormant Paging D.  Demand Paging

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1829 First-in-First-Out (FIFO) scheduling is
Options: Non Preemptive Scheduling B.  Preemptive Scheduling C.  Fair Share Scheduling D.  Deadline Scheduling

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1831 The necessary conditions needed before deadlock can occur?
Options: No Mutual Exclusion, Hold and wait, Preemption, Circular Wait B.  Mutual Exclusion, No Hold and wait, Preemption, Circular Wait C.  Mutual Exclusion, Hold and wait, No Preemption, Circular Wait D.  Mutual Exclusion, Hold and wait, Preemption, No Circular Wait

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1832 A program in execution is called
Options: A Paging B.  A Process C.  A virtual memory D.  A Demand Page

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1833 What does Belady’s Anomaly related to?
Options:Page Replacement Algorithm B. Memory Management Algorithm C. Deadlock Prevention Algorithm D. Disk Scheduling Algorithm

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1834 What are the two types of Semaphore?
Options:Digital Semaphores and Binary Semaphores B. Analog Semaphores and Octal Semaphores          C. Counting Semaphores and Binary Semaphores D. Critical Semaphores and System Semaphores

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1835 What is dispatch latency?
Options:The time taken by the dispatcher to stop one process and start another B. The time taken by the processor to write a file into disk C. The whole time taken by all processor D. None of Above

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1836 Which of the following is not process states?
Options:New B. Running C. Ready D. Finished

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1837 What are the requirements for the solution to critical section problem?
Options:Mutual Exclusion B. Progress C. Bounded Waiting D. All of Above

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1838 Which of the following is the allocation method of a disk space?
Options:Contiguous allocation B. Linked allocation C. Indexed allocation D. All of the Above

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1839 What is the method of handling deadlocks?
Options:Use a protocol to ensure that the system will never enter a deadlock state. B. Allow the system to enter the deadlock state and then recover. C. Pretend that deadlocks never occur in the system. D. All of the Above

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1840 What do you mean by Memory Compaction?
Options:Combine multiple equal memory holes into one big hole B. Combine multiple small memory holes into one big hole C. Divide big memory hole into small holes D. Divide memory hole by 2

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1841 What is Thrashing?
Options:A high paging activity is called thrashing. B. A high executing activity is called thrashing C. A extremely long process is called thrashing D. A extremely long virtual memory is called thrashing

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1842 What hole will allocates in “Worst-Fit” algorithm of memory management?
Options:It allocates the smaller hole than required memory hole B. It allocates the smallest hole from the available memory holes C. It allocates the largest hole from the available memory holes D. It allocates the exact same size memory hole

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1843 An operating system is a program or a group of programs that
Options:Helps in checking the spelling of Word B. Maintain the relationship in Database C. Manages the resources of the Computer D. Performs the calculations of cells in Excel

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1845 The chunks of a memory are known as
Options:Sector B. Offset C. Page D. Frame

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1847 Which of the following operating system reads and reacts in actual time?
Options:Quick Response System B. Real Time System C. Time Sharing System D. Batch Processing System

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1848 Which of the following resources must be protected by the operating system?
Options:I/O B. Memory C. CPU D. All of the above

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1849 Command Interpreter is also known as
Options:Prompt B. Shell C. Command D. DOS Prompt

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1850 Which of the following is major activities of an operating system in regard to secondary-storage management?
Options:Free-space management B. Storage allocation C. Disk scheduling D. All of the above

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