Answered: Symmetric multiprocessing is common in…

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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1. Symmetric multiprocessing is common in the modern computing world which refers to "multi core".

2. The operating system runs in kernel/monitor and user modes.

3. In dining philosophers’ problem involving 20 philosophers, there should be a maximum of 11 philosophers who can eat at the same time.

4. Aging is one of the problems encountered in implementing multilevel queue scheduling algorithm.

5. Parallel systems require networking infrastructure thus, also called loosely coupled systems.

6. Catalina with version 10.15 is the latest version of MacOS.

7. The latest version of Android OS is Android 10.0 which is also known as "Red Velvet cake".

8. Preemption is performed when a process has completed its entire task.

9. There is only one queue used by the OS in the implementation of FCFS, PSA, SJF, or RR scheduling algorithms.

10. Bounded waiting is one of the criteria in solving critical section problem of process synchronization.

11. In order to optimize the overall OS performance, the scheduler must produce a maximum CPU utilization, maximum throughput, maximum waiting time, and minimum turnaround time.

12. Deadlocks only occur when sharing consumable and preemptable type of resources.

13. One major difficulty of priority algorithm is the need to know or estimate the burst time of each job.

14. In a simple batch system, OS has the ability to run more than one program at once.

15. A process can never be stopped or suspended if the process is currently being executed.

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