1K+ questions with answers
Q1. A virtual memory system uses First In First Out (FIFO) page replacement policy and allocates a fixed number of frames to a process. Consider the following statements. P : Increasing the number of page frames allocated to a process sometimes increases the page fault rate Q : Some programs do not exhibit locality of reference Which of the following is TRUE?
Q2. Some of the properties of real time systems include ____________
Q3. In the Many to Many models when a thread performs a blocking system call ___________
Q4. Consider the following page reference string. 12342156212376321236 For FIFO page replacement algorithms with 4 frames, the number of page faults is?
Q5. The directory can be viewed as a _________ that translates file names into their directory entries.
Q6. The hybrid algorithm that combines EDF with SCAN algorithm is known as ___________
Q7. What is a locality?
Q8. What are the advantages of file replication?
Q9. To ensure difficulties do not arise in the readers – writers problem _______ are given exclusive access to the shared object.
Q10. The priority of a process will ______________ if the scheduler assigns it a static priority.
Q11. The data-in register of I/O port is ____________
Q12. A single parity bit can be used for ____________
Q13. A fork system call will fail if ______________
Q14. _______ tend to represent a major bottleneck in system performance.
Q15. What is networked virtual memory?
Q16. What are Spinlocks?
Q17. When hardware is accessed by reading and writing to the specific memory locations, then it is called ____________
Q18. Complex scheduling algorithms ____________
Q19. Implementation of a stateless file server must not follow?
Q20. If the block of free-space list is free then bit will ____________
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