QUESTION 23 The first readers-writers problem OA) requires that, once a writer is ready, that writer performs its write as soon as possible OB) is not used to test synchronization primitives OC) requires that no reader will be kept waiting unless a writer has already obtained permission to use the shared database OD) requires that no reader will be kept waiting unless a reader has already obtained permission to use the shared database QUESTION 24 What is the correct order of operations for protecting a critical section using mutex locks? OA) release () followed by acquire() O B) acquire () followed by release() OC) wait () followed by signal() OD) signal () followed by wait ()

QUESTION 23 The first readers-writers problem OA) requires that, once a writer is ready, that writer performs its write as soon as possible OB) is not used to test synchronization primitives OC) requires that no reader will be kept waiting unless a writer has already obtained permission to use the shared database OD) requires that no reader will be kept waiting unless a reader has already obtained permission to use the shared database QUESTION 24 What is the correct order of operations for protecting a critical section using mutex locks? OA) release () followed by acquire() O B) acquire () followed by release() OC) wait () followed by signal() OD) signal () followed by wait ()

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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