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GATE CS - Operating Systems
Practice process management, memory management, file systems, and disk scheduling
100 questions•10 pages•~150 min
Use this quiz track to strengthen recall, speed, and exam-style decision making. Attempt one page first, review explanations, and then re-attempt incorrect questions without notes.
A good scoring strategy is to mark uncertain questions, finish known ones quickly, and return with elimination logic. This improves accuracy while keeping momentum under time constraints.
Progress: 0 / 1000%
Page 6 of 10 • Questions 51-60 of 100
Q51easy
What is the main difference between a process and a program?
Q52hard
In a system with 3 frames using LRU, what is the number of page faults for reference string 1,2,3,4,1,2,5,1,2,3,4,5?
Q53easy
What is the purpose of the ready queue in process scheduling?
Q54medium
What is the main advantage of multilevel feedback queue scheduling?
Q55medium
What is the effective memory access time with cache hit ratio 90%, cache access 10ns, memory access 100ns?
Q56easy
What is the main purpose of the dispatcher in process scheduling?
Q57medium
In a system with page size 4KB, what is the page number for virtual address 24576?
Q58easy
What is the main difference between preemptive and non-preemptive scheduling?
Q59easy
What is the purpose of the page table?
Q60easy
What is the main advantage of demand paging?
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