Operating system objective questions for gate pdf




















Vaani1 Senior User. Points 43 Location Bangalore Student of Engineering. CPU scheduling. Memory management and virtual memory. File systems. You must log in or register to reply here. Part Two: It includes questions about topics in the operating system with their answers. The topics are Main memory, Virtual memory, and Processes synchronization. Notes: 1: If this published useful for you, my recommend or follow it.

Start online test with daily Operating System quiz for Gate computer science engineering exam When a requested page is in memory b. When a requested page is not in memory c. When a page is currupted d. When a requested page is not in memory. Thrashing occurs when a. When a page fault occurs b. Processes on system frequently access pages not memory c. Processes on system are in running state d. Processes on system frequently access pages not memory. A computer uses 46—bit virtual address, 32—bit physical address, and a three—level paged page table organization.

The page table base register stores the base address of the first—level table T1 , which occupies exactly one page. Each entry of T1 stores the base address of a page of the second—level table T2. Each entry of T2 stores the base address of a page of the third—level table T3. Each entry of T3 stores a page table entry PTE. The PTE is 32 bits in size. The processor used in the computer has a 1 MB 16 way set associative virtually indexed physically tagged cache.

The cache block size is 64 bytes. What is the size of a page in KB in this computer? Send It! In the index allocation scheme of blocks to a file, the maximum possible size of the file depends on :. Increasing the RAM of a computer typically improves performance because:. Efficient implementation of multi-user support is no longer possible. The processor cache organization can be made more efficient now.



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