• Sat. Oct 16th, 2021

DIGITAL ASSISTANT OPERATING SYSTEM ONLINE EXAM

Byadmin

Apr 13, 2020

Fragmentation is

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Critical region is

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In a time-sharing operating system, when the time slot given to a process is completed, the process goes from the RUNNING state to the

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Pre-emptive scheduling, is the strategy of temporarily suspending a running process [A] [B] [C] [D] Comment Answer: Option [C]

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Some computer systems support dual mode operation—the user mode and the supervisor or monitor mode. These refer to the modes

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In Round Robin CPU scheduling, as the time quantum is increased, the average turn around

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Suppose that a process is in ‘BLOCKED’ state waiting for some I/O service. When the service is completed, it goes to the

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To obtain better memory utilization, dynamic loading is used. With dynamic loading a routine is not loaded until it is called for. For implementing dynamic loading,

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Semaphores are used to solve the problem of

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Dijkstra’s banking algorithm in an operating system solves the problem of

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The only state transition that is initiated by the user process itself is

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Kernel is

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Virtual memory is

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Overlay is

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Sector interleaving in disks is done by

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Dirty bit is used to show the

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) The first-fit, and the worst-fit algorithm can be used for

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In a paged memory, the page hit ratio is 0.35. The time required to access a page in secondary memory is equal to 100 ns. The time required to access a page in primary memory is 10 ns. The average time required to access a page is

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) In a multi-user operating system, 20 requests are made to use a particular resource per hour on an average. The probability that no requests are made in 45 minutes is

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Disk scheduling involves deciding

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