Q1. What are the two types of Semaphore?
(A) Counting Semaphores and Binary Semaphores
(B) Digital Semaphores and Binary Semaphores
(C) Analog Semaphores and Octal Semaphores
(D) Critical Semaphores and System Semaphores

Q2. Piece of code that only one thread can execute at a time is called?
(A) Mutual Exclusion
(B) Critical Section
(C) Synchronization
(D) All of these

Q3. When a thread waits indefinitely for some resource, but other threads are actually using it is called?
(A) Demand Paging
(B) Segmentation
(C) Starvation
(D) None of these

Q4. Bring a page into memory only when it is needed is called:
(A) Demand Paging
(B) Demand Memory
(C) Page Fault
(D) Page Segmentation

Q5. In which type of the operating system response time is crucial
(A) Network operating system
(B) Real time operating system
(C) Batch operating system
(D) UNIX operating system

Q6. Virtual memory is:
(A) Extremely large secondary memory
(B) Extremely large internal memory
(C) An illusion of extremely large main memory
(D) None of these

Q7. Which of the following file format supported in Windows7?
(A) BSD
(B) NTFS
(C) EXT
(D) All of the above

Q8. The strategy of allowing processes that are logically runnable to be temporarily suspended is called
(A) shortest job first
(B) preemptive scheduling
(C) first come first serve
(D) non preemptive scheduling

Q9. A system program that combines the separately compiled modules of a program into a form suitable for execution
(A) linking loader
(B) cross compiler
(C) assembler
(D) None of the above

Q10. Which of the following operating system is developed by Apple?
(A) Windows
(B) Linux
(C) DOS
(D) Mac OS

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