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Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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please choose only correct answer : 1) Tool for process synchronization is * a, Pipe b, Thread c, Semaphore d, B and C e, All of the given 2) term scheduler select processes from the pool and load them into the memory for execution. * a, Short b, Medium c, Middle d, None of the given 3) A ………………….. is used to hold processes waiting on the semaphore. * a, Tree b, Stack c, Queue d, Graph 4) The methods of Dynamic partitioning suffer from ___ * a, Internal fragmentation b, external fragmentation c, Internal segmentation d, external segmentation 5) __________ creating multiple fragments in the memory because of the processes moving in and out * a, Fragmentation b, Paging c, Segmentation d, Swapping 6) Run-time mapping is done through * a, Firmware b, Software c, MMU d, All of the given 7)To control the degree of multiprogramming ______ scheduler is used for swapping processes in and out of memory * a, Medium-term b, Long-term c, Short-term d, All of the given

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